Science.gov

Sample records for medium-voltage dvr-theoretical investigations

  1. 30 CFR 75.902 - Low- and medium-voltage ground check monitor circuits.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 2011-07-01 false Low- and medium-voltage ground check monitor circuits...STANDARDS-UNDERGROUND COAL MINES Underground Low- and Medium-Voltage Alternating Current Circuits § 75.902 Low- and medium-voltage ground check monitor...

  2. 30 CFR 77.902 - Low- and medium-voltage ground check monitor circuits.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 2014-07-01 false Low- and medium-voltage ground check monitor circuits...OF UNDERGROUND COAL MINES Low- and Medium-Voltage Alternating Current Circuits § 77.902 Low- and medium-voltage ground check monitor...

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

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 2014-07-01 false Low- and medium-voltage ground check monitor circuits...STANDARDS-UNDERGROUND COAL MINES Underground Low- and Medium-Voltage Alternating Current Circuits § 75.902 Low- and medium-voltage ground check monitor...

  4. 30 CFR 77.902 - Low- and medium-voltage ground check monitor circuits.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 2010-07-01 false Low- and medium-voltage ground check monitor circuits...OF UNDERGROUND COAL MINES Low- and Medium-Voltage Alternating Current Circuits § 77.902 Low- and medium-voltage ground check monitor...

  5. 30 CFR 75.902 - Low- and medium-voltage ground check monitor circuits.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 2012-07-01 false Low- and medium-voltage ground check monitor circuits...STANDARDS-UNDERGROUND COAL MINES Underground Low- and Medium-Voltage Alternating Current Circuits § 75.902 Low- and medium-voltage ground check monitor...

  6. 30 CFR 77.902 - Low- and medium-voltage ground check monitor circuits.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 2013-07-01 false Low- and medium-voltage ground check monitor circuits...OF UNDERGROUND COAL MINES Low- and Medium-Voltage Alternating Current Circuits § 77.902 Low- and medium-voltage ground check monitor...

  7. 30 CFR 77.902 - Low- and medium-voltage ground check monitor circuits.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 2012-07-01 false Low- and medium-voltage ground check monitor circuits...OF UNDERGROUND COAL MINES Low- and Medium-Voltage Alternating Current Circuits § 77.902 Low- and medium-voltage ground check monitor...

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

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 2011-07-01 false Low- and medium-voltage ground check monitor circuits...OF UNDERGROUND COAL MINES Low- and Medium-Voltage Alternating Current Circuits § 77.902 Low- and medium-voltage ground check monitor...

  9. 30 CFR 75.902 - Low- and medium-voltage ground check monitor circuits.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 2013-07-01 false Low- and medium-voltage ground check monitor circuits...STANDARDS-UNDERGROUND COAL MINES Underground Low- and Medium-Voltage Alternating Current Circuits § 75.902 Low- and medium-voltage ground check monitor...

  10. 30 CFR 75.902 - Low- and medium-voltage ground check monitor circuits.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 2010-07-01 false Low- and medium-voltage ground check monitor circuits...STANDARDS-UNDERGROUND COAL MINES Underground Low- and Medium-Voltage Alternating Current Circuits § 75.902 Low- and medium-voltage ground check monitor...

  11. 30 CFR 75.907 - Design of trailing cables for medium-voltage circuits.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... false Design of trailing cables for medium-voltage circuits. 75.907 Section...STANDARDS-UNDERGROUND COAL MINES Underground Low- and Medium-Voltage Alternating Current Circuits § 75.907 Design of trailing cables for medium-voltage circuits. [Statutory...

  12. 30 CFR 75.907 - Design of trailing cables for medium-voltage circuits.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... false Design of trailing cables for medium-voltage circuits. 75.907 Section...STANDARDS-UNDERGROUND COAL MINES Underground Low- and Medium-Voltage Alternating Current Circuits § 75.907 Design of trailing cables for medium-voltage circuits. [Statutory...

  13. 30 CFR 75.907 - Design of trailing cables for medium-voltage circuits.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... false Design of trailing cables for medium-voltage circuits. 75.907 Section...STANDARDS-UNDERGROUND COAL MINES Underground Low- and Medium-Voltage Alternating Current Circuits § 75.907 Design of trailing cables for medium-voltage circuits. [Statutory...

  14. 30 CFR 75.907 - Design of trailing cables for medium-voltage circuits.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... false Design of trailing cables for medium-voltage circuits. 75.907 Section...STANDARDS-UNDERGROUND COAL MINES Underground Low- and Medium-Voltage Alternating Current Circuits § 75.907 Design of trailing cables for medium-voltage circuits. [Statutory...

  15. 30 CFR 75.907 - Design of trailing cables for medium-voltage circuits.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... false Design of trailing cables for medium-voltage circuits. 75.907 Section...STANDARDS-UNDERGROUND COAL MINES Underground Low- and Medium-Voltage Alternating Current Circuits § 75.907 Design of trailing cables for medium-voltage circuits. [Statutory...

  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

    ... 2013-07-01 false Low- and medium-voltage circuits serving portable...OF UNDERGROUND COAL MINES Low- and Medium-Voltage Alternating Current Circuits § 77.900 Low- and medium-voltage circuits serving...

  17. 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

    ... 2010-07-01 false Low- and medium-voltage circuits serving portable...OF UNDERGROUND COAL MINES Low- and Medium-Voltage Alternating Current Circuits § 77.900 Low- and medium-voltage circuits serving...

  18. 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

    ... 2014-07-01 false Low- and medium-voltage circuits serving portable...OF UNDERGROUND COAL MINES Low- and Medium-Voltage Alternating Current Circuits § 77.900 Low- and medium-voltage circuits serving...

  19. 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

    ... 2012-07-01 false Low- and medium-voltage circuits serving portable...OF UNDERGROUND COAL MINES Low- and Medium-Voltage Alternating Current Circuits § 77.900 Low- and medium-voltage circuits serving...

  20. 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

    ... 2011-07-01 false Low- and medium-voltage circuits serving portable...OF UNDERGROUND COAL MINES Low- and Medium-Voltage Alternating Current Circuits § 77.900 Low- and medium-voltage circuits serving...

  1. 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.

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

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...-phase circuits. 77.901 Section 77.901 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION... Protection of low- and medium-voltage three-phase circuits. (a) Low- and medium-voltage circuits supplying power to portable or mobile three-phase alternating equipment shall contain: (1) Either a direct...

  5. Analysis of asset health : an approach to monitoring and diagnostics for medium voltage circuit breakers

    E-print Network

    Corona, Erick (Erick Gustavo)

    2013-01-01

    The Medium Voltage Electric Industry is a very conservative and risk adverse sector that has undergone very little change in the past 30 years when compared to other technologically dependent activities; this reality is ...

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

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... circuits. Trailing cables for medium-voltage circuits shall include grounding conductors, a ground check conductor, and grounded metallic shields around each power conductor or a ground metallic shield over...

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

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... circuits. Trailing cables for medium-voltage circuits shall include grounding conductors, a ground check conductor, and grounded metallic shields around each power conductor or a ground metallic shield over...

  8. 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.

  9. 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-...

  10. An amorphous alloy core medium frequency magnetic-link for medium voltage photovoltaic inverters

    NASA Astrophysics Data System (ADS)

    Rabiul Islam, Md.; Guo, Youguang; Wei Lin, Zhi; Zhu, Jianguo

    2014-05-01

    The advanced magnetic materials with high saturation flux density and low specific core loss have led to the development of an efficient, compact, and lightweight multiple-input multiple-output medium frequency magnetic-link. It offers a new route to eliminate some critical limitations of recently proposed medium voltage photovoltaic inverters. In this paper, a medium frequency magnetic-link is developed with Metglas amorphous alloy 2605S3A. The common magnetic-link generates isolated and balanced multiple DC supplies for all of the H-bridge inverter cells of the medium voltage inverter. The design and implementation of the prototype, test platform, and the experimental test results are analyzed and discussed. The medium frequency non-sinusoidal excitation electromagnetic characteristics of alloy 2605S3A are also compared with that of alloy 2605SA1. It is expected that the proposed new technology will have great potential for future renewable power generation systems and smart grid applications.

  11. 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

    ...Low- and medium-voltage power circuits serving three-phase alternating...shall be protected by suitable circuit breakers of adequate interrupting...undervoltage, grounded phase, short circuit, and...

  12. 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 power circuits serving three-phase alternating...shall be protected by suitable circuit breakers of adequate interrupting...undervoltage, grounded phase, short circuit, and...

  13. 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 power circuits serving three-phase alternating...shall be protected by suitable circuit breakers of adequate interrupting...undervoltage, grounded phase, short circuit, and...

  14. 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

    ...Low- and medium-voltage power circuits serving three-phase alternating...shall be protected by suitable circuit breakers of adequate interrupting...undervoltage, grounded phase, short circuit, and...

  15. 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

    ...Low- and medium-voltage power circuits serving three-phase alternating...shall be protected by suitable circuit breakers of adequate interrupting...undervoltage, grounded phase, short circuit, and...

  16. 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.

  17. 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

    ... 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. Optical sensors for electrical elements of a medium voltage distribution network

    NASA Astrophysics Data System (ADS)

    De Maria, Letizia; Bartalesi, Daniele; Serragli, Paolo; Paladino, Domenico

    2012-04-01

    The aging of most of the components of the National transmission and distribution system can potentially influence the reliability of power supply in a Medium Voltage (MV) network. In order to prevent possible dangerous situations, selected diagnostic indicators on electrical parts exploiting reliable and potentially low-cost sensors are required. This paper presents results concerning two main research activities regarding the development and application of innovative optical sensors for the diagnostic of MV electrical components. The first concerns a multi-sensor prototype for the detection of pre-discharges in MV switchboards: it is the combination of three different types of sensors operating simultaneously to detect incipient failure and to reduce the occurrence of false alarms. The system is real-time controlled by an embedded computer through a LabView interface. The second activity refers to a diagnostic tool to provide significant real-time information about early aging of MV/Low Voltage (LV) transformers by means of its vibration fingerprint. A miniaturized Optical Micro-Electro-Mechanical System (MEMS) based unit has been assembled for vibration measurements, wireless connected to a remote computer and controlled via LabView interface. Preliminary comparative tests were carried out with standard piezoelectric accelerometers on a conventional MV/LV test transformer under open circuit and in short-circuited configuration.

  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. 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 implementatio

  3. 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).

  4. 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.

  5. 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.; Jänke, C.; Krämer, 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 year’s 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.

  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

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

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...the frames of all the electric equipment supplied...limits the ground fault current to no more than 25...rated for maximum fault current continuously and provide...three-phase alternating current stationary electric equipment shall...

  11. 30 CFR 77.901 - Protection of low- and medium-voltage three-phase circuits.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...the frames of all the electric equipment supplied...limits the ground fault current to no more than 25...rated for maximum fault current continuously and provide...three-phase alternating current stationary electric equipment shall...

  12. 30 CFR 77.901 - Protection of low- and medium-voltage three-phase circuits.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...the frames of all the electric equipment supplied...limits the ground fault current to no more than 25...rated for maximum fault current continuously and provide...three-phase alternating current stationary electric equipment shall...

  13. 30 CFR 77.901 - Protection of low- and medium-voltage three-phase circuits.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...the frames of all the electric equipment supplied...limits the ground fault current to no more than 25...rated for maximum fault current continuously and provide...three-phase alternating current stationary electric equipment shall...

  14. 30 CFR 77.901 - Protection of low- and medium-voltage three-phase circuits.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...the frames of all the electric equipment supplied...limits the ground fault current to no more than 25...rated for maximum fault current continuously and provide...three-phase alternating current stationary electric equipment shall...

  15. 30 CFR 77.901 - Protection of low- and medium-voltage three-phase circuits.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... circuit. (b) Grounding resistors, where required, shall be of an ohmic value which limits the ground fault current to no more than 25 amperes. Such grounding resistors shall be rated for maximum fault...

  16. 30 CFR 77.901 - Protection of low- and medium-voltage three-phase circuits.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... circuit. (b) Grounding resistors, where required, shall be of an ohmic value which limits the ground fault current to no more than 25 amperes. Such grounding resistors shall be rated for maximum fault...

  17. 30 CFR 77.901 - Protection of low- and medium-voltage three-phase circuits.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... circuit. (b) Grounding resistors, where required, shall be of an ohmic value which limits the ground fault current to no more than 25 amperes. Such grounding resistors shall be rated for maximum fault...

  18. 30 CFR 77.901 - Protection of low- and medium-voltage three-phase circuits.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... circuit. (b) Grounding resistors, where required, shall be of an ohmic value which limits the ground fault current to no more than 25 amperes. Such grounding resistors shall be rated for maximum fault...

  19. 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.

  20. ESRDC ship notional baseline Medium Voltage Direct Current (MVDC) architecture thermal simulation and visualization

    E-print Network

    Chryssostomidis, Chryssostomos

    2011-01-01

    This work presents a fast visualization and thermal simulation tool developed as part of the Electric Ship Research and Development Consortium (ESRDC) funded by the Office of Naval Research (ONR) that is capable of providing ...

  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. 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.

  3. 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...) specified in 30 CFR part 18, appendix I, table 9, Specifications for Cables Longer than 500 Feet. (7... required, shall be of the proper ohmic value to limit the ground fault current to 25 amperes. The...

  4. 30 CFR 75.901 - Protection of low- and medium-voltage three-phase circuits used underground.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... diesel engine powering the electrical generator must be approved under 30 CFR part 7, subpart E. (2) A...) specified in 30 CFR part 18, appendix I, table 9, Specifications for Cables Longer than 500 Feet. (7... required, shall be of the proper ohmic value to limit the ground fault current to 25 amperes. The...

  5. 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...) specified in 30 CFR part 18, appendix I, table 9, Specifications for Cables Longer than 500 Feet. (7... required, shall be of the proper ohmic value to limit the ground fault current to 25 amperes. The...

  6. 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...) specified in 30 CFR part 18, appendix I, table 9, Specifications for Cables Longer than 500 Feet. (7... required, shall be of the proper ohmic value to limit the ground fault current to 25 amperes. The...

  7. 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...) specified in 30 CFR part 18, appendix I, table 9, Specifications for Cables Longer than 500 Feet. (7... required, shall be of the proper ohmic value to limit the ground fault current to 25 amperes. The...

  8. 30 CFR 75.901 - Protection of low- and medium-voltage three-phase circuits used underground.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...transformers. (5) Each three-phase circuit interrupting device must be provided with a means to provide short-circuit, overcurrent, grounded-phase...percent of the minimum available short circuit current at the point where...

  9. 30 CFR 75.901 - Protection of low- and medium-voltage three-phase circuits used underground.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...transformers. (5) Each three-phase circuit interrupting device must be provided with a means to provide short-circuit, overcurrent, grounded-phase...percent of the minimum available short circuit current at the point where...

  10. 30 CFR 75.901 - Protection of low- and medium-voltage three-phase circuits used underground.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...transformers. (5) Each three-phase circuit interrupting device must be provided with a means to provide short-circuit, overcurrent, grounded-phase...percent of the minimum available short circuit current at the point where...

  11. 30 CFR 75.901 - Protection of low- and medium-voltage three-phase circuits used underground.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...transformers. (5) Each three-phase circuit interrupting device must be provided with a means to provide short-circuit, overcurrent, grounded-phase...percent of the minimum available short circuit current at the point where...

  12. 30 CFR 75.901 - Protection of low- and medium-voltage three-phase circuits used underground.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...transformers. (5) Each three-phase circuit interrupting device must be provided with a means to provide short-circuit, overcurrent, grounded-phase...percent of the minimum available short circuit current at the point where...

  13. 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…

  14. Investigator Resources

    Cancer.gov

    A Handbook for Clinical Investigators Conducting Therapeutic Clinical Trials Supported by CTEP, DCTD, NCI. The 2014 version 1.2 of the Investigator’s Handbook is a bookmarked PDF file available for download.

  15. Investigator Resources

    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 Investigator Resources Investigator

  16. 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,

  17. Fire investigation

    NASA Astrophysics Data System (ADS)

    Gomberg, A.

    There was considerable progress made on several fronts of fire investigation in the United States in recent years. Progress was made in increasing the quantity of fire investigation and reporting, through efforts to develop the National Fire Incident Reporting System. Improving overall quality of fire investigation is the objective of efforts such as the Fire Investigation Handbook, which was developed and published by the National Bureau of Standards, and the upgrading and expanding of the ""dictionary'' of fire investigation and reporting, the NFPA 901, Uniform Coding for Fire Protection, system. The science of fire investigation as furthered also by new approaches to post fire interviews being developed at the University of Washington, and by in-depth research into factors involved in several large loss fires, including the MGM Grand Hotel in Las Vegas. Finally, the use of special study fire investigations - in-depth investigations concentrating on specific fire problems - is producing new glimpses into the nature of the national fire problem. A brief description of the status of efforts in each of these areas is discussed.

  18. 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.

  19. 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.

  20. 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.

  1. 2. INVESTIGATOR(S) 3. INTRODUCTION

    E-print Network

    27, 2011 2. INVESTIGATOR(S) 2.1 Investigator(s) Name and Title Dr. Wolfgang Ludwig Centre de Laboratoire des Mécanismes de Tranfert en Géologie CNRS / University Paul Sabatier, Toulouse, France 2.2 Title

  2. 2. INVESTIGATOR(S) 3. INTRODUCTION

    E-print Network

    26, 2011 2. INVESTIGATOR(S) 2.1 Investigator(s) Name and Title Dr. Wolfgang Ludwig Centre de Laboratoire des Mécanismes de Tranfert en Géologie CNRS / University Paul Sabatier, Toulouse, France 2.2 Title.3 Contacts (For Data Production Information) Contact 1 Contact 2 2.3.1 Name Dr. Wolfgang Ludwig Dr. Philippe

  3. Death Investigation Certificate

    E-print Network

    Saldin, Dilano

    Death Investigation Certificate What is Death Investigation? Medico-legal death investigation in death investigation in different ways. The study of death investigation trains students to identify and assemble a set of investigative tasks that are performed at every death scene. Modern medico- legal death

  4. Investigations with Protease.

    ERIC Educational Resources Information Center

    Yip, Din Yan

    1997-01-01

    Presents two simple and reliable ways for measuring protease activity that can be used for a variety of investigations in a range of biology class levels. The investigations use protease from a variety of sources. (DDR)

  5. CHTN :: Investigator Requirements

    Cancer.gov

    The CHTN seeks to provide tissues to the widest group of investigators practicable. In this regard no investigator should expect to have access to unlimited numbers of malignant specimens of one type.

  6. Transfer Investigational Agent Form

    Cancer.gov

    10/02 Transfer Investigational Agent Form This form is to be used for an intra-institutional transfer, one transfer/form. Division of Cancer Prevention National Cancer Institute National Institutes of Health TRANSFER FROM: Investigator transferring agent:

  7. 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)

  8. Research Sites & Principal Investigators

    Cancer.gov

    Skip to Main Content Home   |   Data   |   Statistics   |   Tools   |   Collaborations   |   Work with Us   |   Publications   |   About   |   Links Overview Research Sites & Principal Investigators Dissemination and Diffusion Activities Media Reports

  9. 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.

  10. 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…

  11. 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.

  12. 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.

  13. Assessment of Biology Investigations.

    ERIC Educational Resources Information Center

    Roberts, Ros; Gott, Richard

    2003-01-01

    Makes a case for the assessment of investigations against the Concept of Evidence in written tests as a potentially more reliable and valid way of assessing the ideas used in all types of biology investigations, thus reducing the distorting effect of assessment on the curriculum. (Author/SOE)

  14. Investigational Drug Steering Committee

    Cancer.gov

    The Investigational Drug Steering Committee collaborates with the NCI in the design and prioritization of early phase drug development trials conducted by the Experimental Therapeutics Clinical Trials Network (ETCTN) with agents for which NCI’s Cancer Therapy and Evaluation Program (CTEP) holds an Investigational New Drug (IND) application.

  15. 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.

  16. Investigations about Science Misconceptions

    E-print Network

    Risch, M

    2010-01-01

    Students entering engineering in universities of applied sciences were tested to see whether they understood easy Science problems within the first week of the first semester. The test comprised of mathematics and physics questions in both linear and diagrammatic form. Science misconceptions are investigated here by comparison to a model of misconception based on the findings of other investigators. The misconceptions demonstrated by the answers confirm this model of misconception. The results are discussed with traditional theories about education as well as with recent psychological research and with neuroscience insights. These comparisons enable further investigation of misconceptions.

  17. 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

  18. Access to Investigational Drugs

    Cancer.gov

    A fact sheet that defines investigational drugs (drugs under study but not yet FDA approved) and describes the special conditions under which patients and their doctors can apply to receive these treatments.

  19. NCI Outstanding Investigator Award

    Cancer.gov

    NCI’s Outstanding Investigator Award supports accomplished leaders in cancer research, who are providing significant contributions toward understanding cancer and developing applications that may lead to a breakthrough in biomedical, behavioral, or clinical

  20. 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...

  1. 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.

  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. Science Investigations Mentorship Program.

    ERIC Educational Resources Information Center

    DeBruin, Jerry; And Others

    1993-01-01

    Science fair mentorship programs let students investigate a wide variety of science topics under the guidance of interested community members. These programs enhance the relationships among school, community, and home. (PR)

  4. 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.

  5. INVESTIGATION HIGHLIGHTED ARTICLE

    E-print Network

    Shapiro, Mike

    system that can control highly specific aspects of skeletal form. Because of the general additivityINVESTIGATION HIGHLIGHTED ARTICLE Modular Skeletal Evolution in Sticklebacks Is Controlled change remains a long-standing goal in biology. In vertebrates, skeletal evolution has contributed

  6. 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…

  7. 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)

  8. Principal Investigator Alain Benoit

    E-print Network

    Leclercq, Samuel

    Principal Investigator Alain Benoit Project Assistance J. Macias-Perez System Engineer IRAM (tbd Detectors A. Monfardini On-line software A. Benoit Calibrator F. Pajot Pipeline, Product, Software F.Cryogenics. A. Benoit - P. Camus, J.P. Leggeri, P. Gandit, A.Monfardini. OnOn--line software.line software. A

  9. 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…

  10. 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…

  11. 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.…

  12. 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.

  13. 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…

  14. 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…

  15. HIGHLIGHTED ARTICLE GENETICS | INVESTIGATION

    E-print Network

    Meyer, Barbara

    HIGHLIGHTED ARTICLE GENETICS | INVESTIGATION Dramatic Enhancement of Genome Editing by CRISPR/Cas9. KEYWORDS CRISPR; Cas9; genome editing; co-conversion; C. elegans THE use of site-specific nucleases and Charpentier 2014; Hsu et al. 2014). Most widely used is the CRISPR-associated nuclease Cas9, whose RNA

  16. 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.

  17. 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…

  18. 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)

  19. 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.

  20. 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

  1. INVESTIGATION HIGHLIGHTED ARTICLE

    E-print Network

    Gruber, Jonathan

    INVESTIGATION HIGHLIGHTED ARTICLE Effect of Genetic Variation in a Drosophila Model of Diabetes, Department of Medicine, and Department of Human Genetics, The University of Chicago, Chicago, Illinois 60637 melanogaster model of neonatal diabetes mellitus. Expression of the mutant preproinsulin (hINSC96Y) in the eye

  2. 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…

  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. 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.

  5. 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.

  6. 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.

  7. 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.

  8. DTP - NCI Investigational Drugs

    Cancer.gov

    This edition of NCI Investigational Drugs - Chemical Information is designed to provide those involved in various phases of drug development with chemical and physical data on compounds which are past or current development candidates in the Developmental Therapeutics Program, Division of Cancer Treatment Diagnosis and Centers, National Cancer Institute. These range from agents which have only just entered the development pipeline to those which are available commercially.

  9. 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.

  10. Turbulent Combustor Flowfield Investigation

    NASA Technical Reports Server (NTRS)

    Lilley, D. G.

    1983-01-01

    The 2-D axisymmetric geometries under low speed, nonreacting, turbulent, swirling flow conditions were investigated. The effect of the parameters on isothermal flowfield patterns, time mean velocities and turbulence quantities is determined and an improved simulation in the form of a computer prediction code equipped with a suitable turbulence model is established. This is a prerequisite to the prediction of more complex turbulent reacting flows.

  11. 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.

  12. 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.

  13. 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

  14. 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.

  15. Solar Physics Investigations

    NASA Astrophysics Data System (ADS)

    Tandberg-Hanssen, Einar

    1999-08-01

    Seven different solar physics experiments have been flown on the Spacelab facility. In the following we shall refer to them by their acronymes as follows: ACRIM - Active Cavity Radiometer Irradiance Monitor. The primary objective is to determine the degree and direction of possible fluctuations in the sun's total output of optical energy (x-rays to microwave wavelengths)by measuring the total solar optical irradiance outside the earth's atmosphere. SUSIM - Solar Ultraviolet Spectral Irradiance Monitor. The objective is to determine both long-term and short-term variations of the total ultraviolet flux emitted by the sun. SOLSPEC - Solar Spectrum Measurement from 180 to 3200 Nanometers. The objective is to measure the solar energy in the ultraviolet, visible and infrared parts of the spectrum, and to determine the amounts of energies in this spectral irradiance, and how they change with time. SOLCON - Measurement of the Solar Constant. The purposes are to measure the absolute value of the total solar irradiance and to detect and measure long-term variations that may exist in its absolute value. SOUP - Solar Optical Universal Polarimeter. The objectives of the experiment are: to measure magnetic and velocity fields in the solar atmosphere; to follow the evolution of solar magnetic structures over periods of several days to determine how magnetic elements couple to the supergranula velocity patterns and by what mechanisms field diffusion and disappearance occur; to study with high temporal and spatial resolution the magnetic field changes associated with transient events; and to provide a test of the pointing accuracy and stability of the Instrument Pointing System (IPS) to sub-arc second accuracy. CHASE - Coronal Helium Abundance Spacelab Experiment. The goal of this experiment is to determine accurately the helium abudance of sun. HRTS Solar Ultraviolet High Resolution Telescope and Spectrograph. Purpose: to investigate the energy transport and mass balance of the temperature minimum, chromosphere, transition zone, and corona in the quiet sun as well as in plages, flares and sunspots; to study the velocity field of the lower corona in order to investigate the origin of the solar wind; to investigate the structure of spicules and superspicules; to investigate the structure and dynamics of prominences; and to study the preflare and flare phenomena.

  16. 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.

  17. Investigation of Surtsey Volcano

    NASA Astrophysics Data System (ADS)

    Moore, James G.; Jakobsson, Sveinn P.; Norrman, John O.

    The volcanic island of Surtsey, Iceland, was built during the period November 1963 to June 1967 and is one of the few oceanic volcanic islands that has formed and survived in recent times. New stimulus to geologic work on the island was provided in 1979 by completion of a 181-m-deep hole that was drilled to investigate the structure of the volcano and the active hydrothermal system below.During August 1985 an international group of researchers undertook a series of geologic and biologic investigations on the island. This work was facilitated by new aerial photographs taken by the Icelandic Geodetic Survey and a new bathymetric map of the Surtsy region made by the Icelandic Hydrographic Service (both in Reykjavik). Ground surveying of markers appearing in the photographs will permit a major revision of the to pographic map of the island (scale 1:5000). The new bathymetry defines the extent of continuing erosion of three volcanic vents, two of which formed short-lived islands during the Surtsey eruptive episode. Since 1967, when the first bathymetry of these submarine features was made, the summitt errace of Syrtlingur has been reduced from 23 to 32 m below sea level; that of Jolnir, from 15 to 37 m; and that of Surtla, from 32 t o 46 m.

  18. Magnetospheric space plasma investigations

    NASA Technical Reports Server (NTRS)

    Comfort, Richard H.; Horwitz, James L.

    1995-01-01

    Topics and investigations covering this period of this semiannual report period (August 1994 - January 1995) are as follows: (1) Generalized SemiKinetic (GSK) modeling of the synergistic interaction of transverse heating of ionospheric ions and magnetospheric plasma-driven electric potentials on the auroral plasma transport. Also, presentations of GSK modeling of auroral electron precipitation effects on ionospheric plasma outflows, of ExB effects on such outflow, and on warm plasma thermalization and other effects during refilling with pre-existing warm plasmas; (2) Referees' reports received on the statistical study of the latitudinal distributions of core plasmas along the L = 4.6 field line using DE-1/RIMS data. Other work is concerned in the same field, field-aligned flows and trapped ion distributions; and (3) A short study has been carried out on heating processes in low density flux tubes in the outer plasmasphere. The purpose was to determine whether the high ion temperatures observed in these flux tubes were due to heat sources operating through the thermal electrons or directly to the ions. Other investigations center along the same area of plasmasphere-ionosphere coupling. The empirical techniques and model, the listing of hardware calibrated, and/or tested, and a description of notable meetings attended is included in this report, along with a list of all present publication in submission or accepted and those reference papers that have resulted from this work thus far.

  19. 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

  20. 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

  1. 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.

  2. 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.

  3. 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.

  4. 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.

  5. 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.

  6. 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.

  7. 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.

  8. 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.

  9. 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.

  10. 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'.

  11. Criminal investigative analysis.

    PubMed

    Minisini, C

    1993-04-01

    In its pursuit of those responsible for the commission of serious violent crime, law enforcement will continue to explore and refine the Criminal Investigative Analysis process. To this end, it will enthusiastically collaborate with the medical profession. The results of continuing studies will be made available to relevant bodies. If a general practitioner becomes aware of a patient's unexplained changes of behaviour an additional question should perhaps be considered: "What else is happening in your life?" The response and its evaluation and subsequent intervention may avert a tragedy. Notification of police and anonymity of a practitioner are always contentious issues. In my mind, responsibility to the community in general completely over-shadows the debate on anonymity and confidentiality. In recent discussions with professionals involved in the mental health field there was a consensus that if a treating doctor becomes aware that a person is likely to be violent or cause harm to themselves or the community, the problem of confidentiality does not occur. The safety of the public is paramount. In addition, senior vice president of the Australian Medical Association, Dr Brendan Nelson, was quoted in the Sunday Age 16 August 1992 as follows: "If a patient tells you that she is going to kill her husband and you believe it is a serious threat, then you have a responsibility to the person whose life is in danger to inform the authorities." To do otherwise, surely is an injustice and it would appear to therefore follow, also unethical and immoral.(ABSTRACT TRUNCATED AT 250 WORDS) PMID:8481116

  12. 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;…

  13. 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;…

  14. 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

  15. 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

  16. 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

  17. 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…

  18. 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.

  19. 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

  20. 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

  1. 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

  2. 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...

  3. 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)

  4. 78 FR 39017 - Investigative Hearing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-28

    ... BOARD Investigative Hearing On November 30, 2012, at 6:59 a.m. eastern standard time, southbound... responders were also tested for vinyl chloride exposure. The investigative hearing will discuss Conrail... state and Federal agencies in establishing a unified command. The goals of this hearing are to...

  5. Investigating multisensory spatial cognition through

    E-print Network

    Zhu, Zhigang

    following damage to the central nervous system has substantially contributed to our understanding. This intrinsic limitation of the somatosensory perceptual system was exploited to further investigate is evoked by simultaneous stimulation elsewhere in the sensory field" Morris B. Bender, Disorders

  6. Accident investigation: keep asking "why?".

    PubMed

    Kletz, Trevor A

    2006-03-17

    Finding the causes of an accident or operating problem and deciding what actions to take to prevent it happening again is rather like dismantling a set of Russian dolls (Fig. 1). Each time we ask "why?" (or a similar searching question) we find another cause besides the ones we have found already and another action (or set of actions) we can take to prevent similar accidents occurring again. Many investigators stop too soon. This occurred at Flixborough, at Bhopal and in the investigation of many lesser-known accidents. We are more likely to find the deeper causes and the more original actions if groups of people with wide interests and experience are able to take part in the investigations or discuss the investigation reports. We should never look at an accident report as "closing out" a problem. As we read it, we should ask ourselves, "what else could be done?" PMID:16162391

  7. 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

  8. Investigational Drug Steering Committee Update

    Cancer.gov

    Investigational Drug Steering Committee Update Angiogenesis Task Force Cardiovascular Toxicities Panel Michael Maitland, M.D., Ph.D. Angiogenesis Taskforce Cardiovascular Toxicities Panel „ Formation „ Process „ Results “we need to do something about

  9. 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

  10. Container #: ______________ Investigator: ________________ Pickup Date: ______________ Lab #: _____________________

    E-print Network

    Nicholson, Bruce J.

    Container #: ______________ Investigator: ________________ Pickup Date: ______________ Lab RADIOACTIVE WASTE Environmental Health & Safety Department RADIOACTIVE WASTE TAG Radionuclide Total Activity (mCi) Date Major Chemicals Percentages To submit your request go to: www

  11. Cooperative autonomy for contact investigation

    E-print Network

    Schmidt, Henrik

    Autonomous surface and underwater vehicles present a safe and low-cost solution for various contact investigation tasks, such as harbor surveillance for potentially threatening small craft or submarines. Since such a task ...

  12. 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.

  13. 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.

  14. 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.

  15. 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 les

  16. SOFIA general investigator science program

    NASA Astrophysics Data System (ADS)

    Young, Erick T.; Andersson, B.-G.; Becklin, Eric E.; Reach, William T.; Sankrit, Ravi; Zinnecker, Hans; Krabbe, Alfred

    2014-07-01

    SOFIA is a joint project between NASA and DLR, the German Aerospace Center, to provide the worldwide astronomical community with an observatory that offers unique capabilities from visible to far-infrared wavelengths. SOFIA consists of a 2.7-m telescope mounted in a highly modified Boeing 747-SP aircraft, a suite of instruments, and the scientific and operational infrastructure to support the observing program. This paper describes the current status of the observatory and details the General Investigator program. The observatory has recently completed major development activities, and it has transitioned into full operational status. Under the General Investigator program, astronomers submit proposals that are peer reviewed for observation on the facility. We describe the results from the first two cycles of the General Investigator program. We also describe some of the new observational capabilities that will be available for Cycle 3, which will begin in 2015.

  17. 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.

  18. Ground vortex flow field investigation

    NASA Technical Reports Server (NTRS)

    Kuhn, Richard E.; Delfrate, John H.; Eshleman, James E.

    1988-01-01

    Flow field investigations were conducted at the NASA Ames-Dryden Flow Visualization Facility (water tunnel) to investigate the ground effect produced by the impingement of jets from aircraft nozzles on a ground board in a STOL operation. Effects on the overall flow field with both a stationary and a moving ground board were photographed and compared with similar data found in other references. Nozzle jet impingement angles, nozzle and inlet interaction, side-by-side nozzles, nozzles in tandem, and nozzles and inlets mounted on a flat plate model were investigated. Results show that the wall jet that generates the ground effect is unsteady and the boundary between the ground vortex flow field and the free-stream flow is unsteady. Additionally, the forward projection of the ground vortex flow field with a moving ground board is one-third less than that measured over a fixed ground board. Results also showed that inlets did not alter the ground vortex flow field.

  19. 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.

  20. 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…

  1. 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)

  2. 78 FR 64026 - Investigative Hearing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-25

    ... From the Federal Register Online via the Government Printing Office NATIONAL TRANSPORTATION SAFETY... Transportation Safety Board (NTSB) will convene an investigative hearing to gather additional factual information... the time of the accident. Metro-North estimated damage at $18.5 million. On Tuesday, May 28, 2013,...

  3. 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...

  4. Special Education Complaint Investigation Procedures.

    ERIC Educational Resources Information Center

    Maine State Dept. of Education, Augusta. Div. of Special Services.

    This document presents guidelines for Maine special education complaint investigation procedures. The introduction stresses the requirement that complaints must be in writing and must state that an educational agency or service provider has violated a requirement of the 1997 Individuals with Disabilities Education Act or Maine special education…

  5. 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…

  6. SURFACE SCIENCE INVESTIGATION OF CORROSION

    E-print Network

    Petta, Jason

    SURFACE SCIENCE INVESTIGATION OF CORROSION PROCESSES Danielle Haynes Professor Steve Bernasek of a material's surface via chemical pathways (i.e., Oxidation) Sources of Corrosion(Electrochemical Pathways of water and corrosive materials In industry , nearly all transfer surfaces fight corrosion processes #12

  7. 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)

  8. 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…

  9. Educational Brief CHIPS SCIENCE INVESTIGATION

    E-print Network

    National Aeronautics andNational Aeronautics and Space AdministrationSpace Administration EducationalEducational Brief CHIPS SCIENCE INVESTIGATION Exploring the Interstellar Medium National Science of matter o Motions and forces o Conservation of energy o Interactions of energy and matter Earth and Space

  10. 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…

  11. Investigational New Drug Application (IND)

    Cancer.gov

    LIST NUMBERS OF ALL INVESTIGATIONAL NEW DRUG APPLICATIONS (21 CFR Part 312), NEW DRUG OR ANTIBIOTIC APPLICATIONS (21 CFR Part 314), DRUG MASTER FILES (21 CFR Part 314.420), AND PRODUCT LICENSE APPLICATIONS (21 CFR Part 601) REFERRED TO IN THIS APPLICATION.

  12. WIRE Mishap Investigation Board Report

    E-print Network

    Rhoads, James

    ......................................... 41 F. Small Explorer WIRE Failure Investigation Report, Richard B. Katz, Goddard Space Flight Center Correlation Kimberly Brown, Dave Everett, Goddard Space Flight Center Impact to the Wide-Field Infrared Explorer (WIRE)............ 230 I. Analysis of US Space Command Debris

  13. 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/.

  14. 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.

  15. 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 ...

  16. 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.

  17. 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.

  18. Microgravity investigations of foundation conditions

    SciTech Connect

    Yule, D.E.; Sharp, M.K.; Butler, D.K.

    1998-01-01

    A microgravity investigation was conducted in the upstream and downstream switchyards of the Wilson Dam powerplant, Florence, Alabama. The objective of the survey was the detection in the switchyard foundations of subsurface cavities or other anomalous conditions that could threaten the stability of the switchyard structures. The survey consisted of 288 gravity stations in the downstream switchyard and 347 stations in the upstream switchyard. Significant anomalous areas in the switchyards were selected on the basis of residual gravity anomaly maps. These results were prioritized and used to guide an exploratory drilling program to investigate the cause of the anomalies. Highest-priority boring location recommendations were in negative gravity anomaly areas, since negative anomalies could be caused by actual cavities or low-density zones that might represent incipient cavity formation. Remaining boring locations were in positive anomaly areas for verification purposes. The results of the borings confirm the presence of cavities and soft zones indicative of cavity formation.

  19. 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.

  20. 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.

  1. Rosetta Radio Science Investigations (RSI)

    NASA Astrophysics Data System (ADS)

    Pätzold, 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

  2. 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

  3. 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.

  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. 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.

  6. 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 than two times the surface areas of reference cathodes and therefore offered the best potential for improved performance.

  7. 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...

  8. 32 CFR 776.84 - Ethics investigation.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 32 National Defense 5 2012-07-01 2012-07-01 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...

  9. 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...

  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. 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.

  13. 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

  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. 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

  16. 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

  17. The NCI Outstanding Investigator Award (R35)

    Cancer.gov

    The NCI Outstanding Investigator Award (OIA) supports investigators with outstanding records of productivity in cancer research by providing extended funding stability and encouraging investigators to continue or embark on projects of unusual potential in cancer research.

  18. 25 CFR 556.4 - Background investigations.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...LICENSES AND BACKGROUND INVESTIGATIONS FOR KEY EMPLOYEES AND PRIMARY MANAGEMENT OFFICIALS...INVESTIGATIONS FOR PRIMARY MANAGEMENT OFFICIALS AND KEY EMPLOYEES § 556.4 Background investigations...primary management official and for each key employee of a gaming operation....

  19. 25 CFR 556.4 - Background investigations.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...LICENSES AND BACKGROUND INVESTIGATIONS FOR KEY EMPLOYEES AND PRIMARY MANAGEMENT OFFICIALS...INVESTIGATIONS FOR PRIMARY MANAGEMENT OFFICIALS AND KEY EMPLOYEES § 556.4 Background investigations...primary management official and for each key employee of a gaming operation....

  20. 25 CFR 556.4 - Background investigations.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...LICENSES AND BACKGROUND INVESTIGATIONS FOR KEY EMPLOYEES AND PRIMARY MANAGEMENT OFFICIALS...INVESTIGATIONS FOR PRIMARY MANAGEMENT OFFICIALS AND KEY EMPLOYEES § 556.4 Background investigations...primary management official and for each key employee of a gaming operation....

  1. 25 CFR 556.4 - Background investigations.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...LICENSES AND BACKGROUND INVESTIGATIONS FOR KEY EMPLOYEES AND PRIMARY MANAGEMENT OFFICIALS...INVESTIGATIONS FOR PRIMARY MANAGEMENT OFFICIALS AND KEY EMPLOYEES § 556.4 Background investigations...primary management official and for each key employee of a gaming operation....

  2. 25 CFR 556.4 - Background investigations.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...LICENSES AND BACKGROUND INVESTIGATIONS FOR KEY EMPLOYEES AND PRIMARY MANAGEMENT OFFICIALS...INVESTIGATIONS FOR PRIMARY MANAGEMENT OFFICIALS AND KEY EMPLOYEES § 556.4 Background investigations...primary management official and for each key employee of a gaming operation....

  3. 21 CFR 812.25 - Investigational plan.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    21 Food and Drugs 8 2013-04-01...2013-04-01 false Investigational plan. 812.25 Section 812.25 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT... § 812.25 Investigational plan. The investigational...

  4. 21 CFR 812.25 - Investigational plan.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    21 Food and Drugs 8 2010-04-01...2010-04-01 false Investigational plan. 812.25 Section 812.25 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT... § 812.25 Investigational plan. The investigational...

  5. 21 CFR 812.25 - Investigational plan.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    21 Food and Drugs 8 2012-04-01...2012-04-01 false Investigational plan. 812.25 Section 812.25 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT... § 812.25 Investigational plan. The investigational...

  6. 21 CFR 812.25 - Investigational plan.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    21 Food and Drugs 8 2011-04-01...2011-04-01 false Investigational plan. 812.25 Section 812.25 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT... § 812.25 Investigational plan. The investigational...

  7. 21 CFR 812.25 - Investigational plan.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    21 Food and Drugs 8 2014-04-01...2014-04-01 false Investigational plan. 812.25 Section 812.25 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT... § 812.25 Investigational plan. The investigational...

  8. 49 CFR 107.305 - Investigations.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...are conducted by Hazardous Materials Enforcement Specialists or Hazardous Materials Compliance Investigators, also known as “hazmat investigators” or “investigators,” whom the Associate Administrator has designated for that purpose. (1) An...

  9. 49 CFR 107.305 - Investigations.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...are conducted by Hazardous Materials Enforcement Specialists or Hazardous Materials Compliance Investigators, also known as “hazmat investigators” or “investigators,” whom the Associate Administrator has designated for that purpose. (1) An...

  10. 49 CFR 107.305 - Investigations.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...are conducted by Hazardous Materials Enforcement Specialists or Hazardous Materials Compliance Investigators, also known as “hazmat investigators” or “investigators,” whom the Associate Administrator has designated for that purpose. (1) An...

  11. 49 CFR 107.305 - Investigations.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...are conducted by Hazardous Materials Enforcement Specialists or Hazardous Materials Compliance Investigators, also known as “hazmat investigators” or “investigators,” whom the Associate Administrator has designated for that purpose. (1) An...

  12. 49 CFR 107.305 - Investigations.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...are conducted by Hazardous Materials Enforcement Specialists or Hazardous Materials Compliance Investigators, also known as “hazmat investigators” or “investigators,” whom the Associate Administrator has designated for that purpose. (1) An...

  13. 75 FR 57472 - Clinical Investigator Training Course

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-21

    ... SERVICES Food and Drug Administration Clinical Investigator Training Course AGENCY: Food and Drug... Programs, in cosponsorship with the Clinical Trials Transformation Initiative (CTTI), is announcing a 3-day... clinical trials (clinical investigators). This course is intended to assist clinical investigators...

  14. 33 CFR 116.15 - Preliminary investigation.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...the necessity of a Detailed Investigation, to the Administrator... (b) The Preliminary Investigation Report will include a...and future navigation, the type and volume of waterway traffic...will review the Preliminary Investigation Report and make a...

  15. 33 CFR 116.20 - Detailed investigation.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...116.25. As part of the investigation, the District Commander will...termed the “Detailed Investigation Report”, which will...alteration is recommended, what type. (b) The District Commander...forward the completed Detailed Investigation Report to the...

  16. 77 FR 44174 - Procedures for Safety Investigations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-27

    ...101 Scope and purpose of safety investigations. 1708.102 Types of safety investigations. 1708.103 Request to conduct safety...prudent or necessary. Sec. 1708.102 Types of safety investigations. (a) The Board may initiate a...

  17. 33 CFR 116.15 - Preliminary investigation.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...the necessity of a Detailed Investigation, to the Administrator... (b) The Preliminary Investigation Report will include a...and future navigation, the type and volume of waterway traffic...will review the Preliminary Investigation Report and make a...

  18. 33 CFR 116.20 - Detailed investigation.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...116.25. As part of the investigation, the District Commander will...termed the “Detailed Investigation Report”, which will...alteration is recommended, what type. (b) The District Commander...forward the completed Detailed Investigation Report to the...

  19. 42 CFR 93.310 - Institutional investigation.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... allegation or inquiry stages, take all reasonable and practical steps to obtain custody of all the research... RESEARCH MISCONDUCT Responsibilities of Institutions The Institutional Investigation § 93.310 Institutional investigation. Institutions conducting research misconduct investigations must: (a) Time. Begin...

  20. Barchan dune asymmetry: Numerical investigation

    E-print Network

    Parteli, Eric J R; Bourke, Mary C; Tsoar, Haim; Poeschel, Thorsten; Herrmann, Hans J

    2013-01-01

    Barchan dunes --- crescent-shaped dunes that form in areas of unidirectional winds and low sand availability --- commonly display an asymmetric shape, with one limb extended downwind. Several factors have been identified as potential causes for barchan dune asymmetry on Earth and Mars: asymmetric bimodal wind regime, topography, influx asymmetry and dune collision. However, the dynamics and potential range of barchan morphologies emerging under each specific scenario that leads to dune asymmetry are far from being understood. In the present work, we use dune modeling in order to investigate the formation and evolution of asymmetric barchans. We find that a bimodal wind regime causes limb extension when the divergence angle between primary and secondary winds is larger than $90^{\\circ}$, whereas the extended limb evolves into a seif dune if the ratio between secondary and primary transport rates is larger than 25%. Calculations of dune formation on an inclined surface under constant wind direction also lead to...

  1. 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

  2. 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).

  3. 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.

  4. 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.

  5. 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.

  6. 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

  7. 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.

  8. Exobiological Investigations on Russian Spacecrafts

    NASA Astrophysics Data System (ADS)

    Kuzicheva, Evgenia A.; Gontareva, Natalia B.

    2003-06-01

    To investigate the possibility of prebiotic synthesis of organic molecules in open space, conditions involved irradiating nucleosides and inorganic phosphate during five Earth-orbiting Russian space missions that included Salut-7 (13- and 16-month missions), Mir, Bion-11, and Cosmos-2044. Dry films of samples were exposed from 2 weeks up to 16 months to the entire set of factors encountered in open space during Earth-orbiting missions. After each mission, products synthesized during flight and any compounds that remained undegraded were analyzed. The analyses demonstrated that increased flight duration led to the decay of both synthesized nucleotides and initial nucleosides. Corresponding laboratory experiments indicated that infrared radiation caused the greatest amount of decay to products of prebiotic reactions. Experiments revealed that 5'-mononucleotides were the main chemical products of the major derivatives synthesized of certain nucleosides. Exposure to ultraviolet (UV) C145 was more effective than UVC254 in producing a comparatively higher yield of mononucleotides, while the energy flux of the latter was one order of magnitude less (10-7 as compared with 10-6 for UVC145). In the course of the laboratory simulation experiments the heating of solid samples yielded the greatest production amount (6.34% for adenosine derivatives).

  9. Paleoseismic investigations in South Carolina

    SciTech Connect

    Talwani, P.; Rajendran, C.P. . Dept. of Geological Sciences)

    1992-01-01

    In the last decade paleoseismological investigations have been carried out in South Carolina by USC, USGS, and EBASCO. The results of these have led to the detection of over 50 paleoliquefaction features. These are concentrated in the meizoseismal area of the 1886 Charleston earthquake, in the Myrtle Beach-Georgetown area (about 100 km NE of Charleston) and in the Bluffton Hilton Head area (about 100 SW of Charleston). At each location several liquefaction features have been discovered and dated. Radiocarbon dates suggest the occurrence of at least 6 and possibly 7 events in the SC Coastal Plain during the Holocene. In the Bluffton area several locations were associated with events dated at 600, 1,200, 2,200, 3,200, and 5,000 YBP. The 600, 1,200, 3,200, and 5,000 YBP dates were also observed at Charleston. In the northern sites several features dated at 600, 1,200, and 1,800 YBP. The 1,800 YBP event was observed only at the northern site and the 2,200 YBP event only at the southern site. These observations suggest that two sources other than Charleston may have been active in the Holocene, one located 100 km to the NE and another 100 km SW of Charleston.

  10. 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.

  11. 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.

  12. 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.

  13. A perceptual investigation of polytonality.

    PubMed

    Thompson, W F; Mor, S

    1992-01-01

    Four experiments investigated the perception of tonal structure in polytonal music. The experiments used musical excerpts in which the upper stave of the music suggested a different key than the lower stave. In Experiment 1, listeners rated the goodness of fit of probe tones following an excerpt from Dubois's Circus. Results suggested that listeners were sensitive to two keys, and weighted them according to their perceived importance within the excerpt. Experiment 2 confirmed that music within each stave reliably conveyed key structure on its own. In Experiment 3, listeners rated probe tones following an excerpt from Milhaud's Sonata No. 1 for Piano, in which different keys were conveyed in widely separate pitch registers. Ratings were collected across three octaves. Listeners did not associate each key with a specific register. Rather, ratings for all three octave registers reflected only the key associated with the upper stave. Experiment 4 confirmed that the music within each stave reliably conveyed key structure on its own. It is suggested that when one key predominates in a polytonal context, other keys may not contribute to the overall perceived tonal structure. The influence of long-term knowledge and immediate context on the perception of tonal structure in polytonal music is discussed. PMID:1620799

  14. 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.

  15. 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.

  16. 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...

  17. 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...

  18. 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.

  19. Density limit investigations on ASDEX

    NASA Astrophysics Data System (ADS)

    Stabler, A.; McCormick, K.; Mertens, V.; Muller, E. R.; Neuhauser, J.; Niedermeyer, H.; Steuer, K.-H.; Zohm, H.; Dollinger, F.; Eberhagen, A.; Fussmann, G.; Gehre, O.; Gernhardt, J.; Hartinger, T.; Hofmann, J. V.; Kakoulidis, E.; Kaufmann, M.; Kyriakakis, G.; Lang, R. S.; Murmann, H. D.; Poschenrieder, W.; Ryter, F.; Sandmann, W.; Schneider, U.; Siller, G.; Soldner, F. X.; Tsois, N.; Vollmer, O.; Wagner, F.

    1992-09-01

    Density limit investigations on ASDEX have been performed under a variety of conditions: ohmically heated and neutral injection heated plasmas in H2, D2 and He have been studied in different divertor configurations, after various wall coating procedures, with gas puff and pellet fuelling, and in different confinement regimes with their characteristically different density profiles. A detailed description of the parametric dependence of the density limit, which in all cases is a disruptive limit, is given. This limit is shown to be a limit to the density at the plasma edge. Therefore, the highest densities corresponding to neRqa/Bt>30*1019 m-2.T-1 are obtained with centrally peaked ne profiles. Radiation from the main plasma at the density limit is always significantly below the total input power. The plasma disruption is due to an m=2 instability which for medium and high qa is preceded by one or more minor disruptions. In this range of qa, the disruptive instability is initiated by the occurrence of a Marfe on the high field side as a consequence of strong plasma cooling in this region. The duration of the Marfe increases with increasing distance between the plasma edge and the q=2 surface. After penetrating onto closed flux surfaces the Marfe leads to a current contraction and a subsequent destabilization of the m = 2 mode. In helium plasmas a strongly radiating, poloidally symmetric shell is observed before the density limit instead of a Marfe. An instantaneous destabilization of this mode is observed at low qa. Detailed measurements of plasma edge and divertor parameters close to the density limit indicate the development of a cold, dense divertor plasma before the disruption. Models describing the scrape-off layer and the divertor region predict an upper limit to the edge density at low divertor temperatures according to power balance considerations. Their relations to the experimental findings, especially the low field side cooling, ar

  20. 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.

  1. [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

  2. 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.

  3. 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.

    2015-06-01

    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.

  4. 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.

  5. 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

  6. 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.

  7. 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.

  8. Numerical investigation of freak waves

    NASA Astrophysics Data System (ADS)

    Chalikov, D.

    2009-04-01

    Paper describes the results of more than 4,000 long-term (up to thousands of peak-wave periods) numerical simulations of nonlinear gravity surface waves performed for investigation of properties and estimation of statistics of extreme (‘freak') waves. The method of solution of 2-D potential wave's equations based on conformal mapping is applied to the simulation of wave behavior assigned by different initial conditions, defined by JONSWAP and Pierson-Moskowitz spectra. It is shown that nonlinear wave evolution sometimes results in appearance of very big waves. The shape of freak waves varies within a wide range: some of them are sharp-crested, others are asymmetric, with a strong forward inclination. Some of them can be very big, but not steep enough to create dangerous conditions for vessels (but not for fixed objects). Initial generation of extreme waves can occur merely as a result of group effects, but in some cases the largest wave suddenly starts to grow. The growth is followed sometimes by strong concentration of wave energy around a peak vertical. It is taking place in the course of a few peak wave periods. The process starts with an individual wave in a physical space without significant exchange of energy with surrounding waves. Sometimes, a crest-to-trough wave height can be as large as nearly three significant wave heights. On the average, only one third of all freak waves come to breaking, creating extreme conditions, however, if a wave height approaches the value of three significant wave heights, all of the freak waves break. The most surprising result was discovery that probability of non-dimensional freak waves (normalized by significant wave height) is actually independent of density of wave energy. It does not mean that statistics of extreme waves does not depend on wave energy. It just proves that normalization of wave heights by significant wave height is so effective, that statistics of non-dimensional extreme waves tends to be independent of wave energy. It is naive to expect that high order moments such as skewness and kurtosis can serve as predictors or even indicators of freak waves. Firstly, the above characteristics cannot be calculated with the use of spectrum usually determined with low accuracy. Such calculations are definitely unstable to a slight perturbation of spectrum. Secondly, even if spectrum is determined with high accuracy (for example calculated with the use of exact model), the high order moments cannot serve as the predictors, since they change synchronically with variations of extreme wave heights. Appearance of freak waves occurs simultaneously with increase of the local kurtosis, hence, kurtosis is simply a passive indicator of the same local geometrical properties of a wave field. This effect disappears completely, if spectrum is calculated over a very wide ensemble of waves. In this case existence of a freak wave is just disguised by other, non freak waves. Thirdly, all high order moments are dependant of spectral presentation - they increase with increasing of spectral resolution and cut-frequency. Statistics of non-dimensional waves as well as emergence of extreme waves is the innate property of a nonlinear wave field. Probability function for steep waves has been constructed. Such type function can be used for development of operational forecast of freak waves based on a standard forecast provided by the 3-d generation wave prediction model (WAVEWATCH or WAM).

  9. 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

  10. 77 FR 60440 - Clinical Investigator Training Course

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-03

    ...Docket No. FDA-2012-N-0001] Clinical Investigator Training Course AGENCY...cosponsoring a 3- day training course for clinical investigators on scientific, ethical, and regulatory aspects of clinical trials. This training course is...

  11. 76 FR 45577 - Clinical Investigator Training Course

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-29

    ...Docket No. FDA-2011-N-0523] Clinical Investigator Training Course AGENCY...Office of Critical Path Programs and the Clinical Trials Transformation Initiative (CTTI...cosponsoring a 3-day training course for clinical investigators on scientific,...

  12. 75 FR 57472 - Clinical Investigator Training Course

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-21

    ...Docket No. FDA-2010-N-0456] Clinical Investigator Training Course AGENCY...Programs, in cosponsorship with the Clinical Trials Transformation Initiative (CTTI...involved in, the conduct and/or design of clinical trials (clinical investigators)....

  13. Cancer Clinical Investigator Team Leadership Award (CCITLA)

    Cancer.gov

    NCI’s 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. 31 CFR 16.4 - Investigation.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    31 Money and Finance: Treasury 1 2010-07-01...Investigation. 16.4 Section 16.4 Money and Finance: Treasury Office of the Secretary...IMPLEMENTING THE PROGRAM FRAUD CIVIL REMEDIES ACT OF 1986 § 16.4 Investigation....

  15. 76 FR 45577 - Clinical Investigator Training Course

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-29

    ... SERVICES Food and Drug Administration Clinical Investigator Training Course AGENCY: Food and Drug... Programs and the Clinical Trials Transformation Initiative (CTTI) are cosponsoring a 3-day training course for clinical investigators on scientific, ethical, and regulatory aspects of clinical trials....

  16. 29 CFR 1981.104 - Investigation.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...CONTINUED) PROCEDURES FOR THE HANDLING OF DISCRIMINATION COMPLAINTS UNDER SECTION 6 OF THE PIPELINE SAFETY IMPROVEMENT ACT OF 2002 Complaints, Investigations, Findings, and Preliminary Orders § 1981.104 Investigation. (a) Upon...

  17. 29 CFR 1981.104 - Investigation.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...CONTINUED) PROCEDURES FOR THE HANDLING OF DISCRIMINATION COMPLAINTS UNDER SECTION 6 OF THE PIPELINE SAFETY IMPROVEMENT ACT OF 2002 Complaints, Investigations, Findings, and Preliminary Orders § 1981.104 Investigation. (a) Upon...

  18. 29 CFR 1981.104 - Investigation.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...CONTINUED) PROCEDURES FOR THE HANDLING OF DISCRIMINATION COMPLAINTS UNDER SECTION 6 OF THE PIPELINE SAFETY IMPROVEMENT ACT OF 2002 Complaints, Investigations, Findings, and Preliminary Orders § 1981.104 Investigation. (a) Upon...

  19. 29 CFR 1980.104 - Investigation.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...LABOR (CONTINUED) PROCEDURES FOR THE HANDLING OF RETALIATION COMPLAINTS UNDER SECTION 806 OF THE SARBANES-OXLEY ACT OF 2002, AS AMENDED Complaints, Investigations, Findings and Preliminary Orders § 1980.104 Investigation....

  20. EXPERIMENTAL AND COMPUTATIONAL INVESTIGATION OF SNOW MELTING

    E-print Network

    EXPERIMENTAL AND COMPUTATIONAL INVESTIGATION OF SNOW MELTING ON HEATED HORIZONTAL SURFACES By SEAN INVESTIGATION OF SNOW MELTING ON HEATED HORIZONTAL SURFACES Thesis Approved: Dean of the Graduate College Thesis..............................................................................................................5 2.3 Snow/Ice Physical Properties

  1. 42 CFR 93.215 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES HEALTH ASSESSMENTS AND HEALTH EFFECTS STUDIES OF HAZARDOUS SUBSTANCES RELEASES AND FACILITIES...Investigation. Investigation means the formal development of a factual record and the...

  2. 42 CFR 93.215 - Investigation.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES HEALTH ASSESSMENTS AND HEALTH EFFECTS STUDIES OF HAZARDOUS SUBSTANCES RELEASES AND FACILITIES...Investigation. Investigation means the formal development of a factual record and the...

  3. 42 CFR 93.215 - Investigation.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES HEALTH ASSESSMENTS AND HEALTH EFFECTS STUDIES OF HAZARDOUS SUBSTANCES RELEASES AND FACILITIES...Investigation. Investigation means the formal development of a factual record and the...

  4. 42 CFR 93.215 - Investigation.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES HEALTH ASSESSMENTS AND HEALTH EFFECTS STUDIES OF HAZARDOUS SUBSTANCES RELEASES AND FACILITIES...Investigation. Investigation means the formal development of a factual record and the...

  5. 42 CFR 93.215 - Investigation.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES HEALTH ASSESSMENTS AND HEALTH EFFECTS STUDIES OF HAZARDOUS SUBSTANCES RELEASES AND FACILITIES...Investigation. Investigation means the formal development of a factual record and the...

  6. Biology. Teacher's Guide. 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 teaching guide is designed for use with the 18 biology investigations found in the student manual. These investigations focus on concepts related to:…

  7. 33 CFR 140.203 - Investigation procedures.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Investigation procedures. 140.203 Section 140.203 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OUTER CONTINENTAL SHELF ACTIVITIES GENERAL Investigations § 140.203 Investigation procedures. (a) Insofar as practicable,...

  8. Physics. Teacher's Guide. 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 teaching guide is designed for use with the 36 physics investigations found in the student manual. These investigations focus on concepts related to:…

  9. 18 CFR 1b.5 - Formal investigations.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 18 Conservation of Power and Water Resources 1 2013-04-01 2013-04-01 false Formal investigations. 1b.5 Section 1b.5 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY GENERAL RULES RULES RELATING TO INVESTIGATIONS § 1b.5 Formal investigations....

  10. 18 CFR 1b.6 - Preliminary investigations.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 18 Conservation of Power and Water Resources 1 2013-04-01 2013-04-01 false Preliminary investigations. 1b.6 Section 1b.6 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY GENERAL RULES RULES RELATING TO INVESTIGATIONS § 1b.6 Preliminary investigations....

  11. 18 CFR 1b.6 - Preliminary investigations.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 18 Conservation of Power and Water Resources 1 2012-04-01 2012-04-01 false Preliminary investigations. 1b.6 Section 1b.6 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY GENERAL RULES RULES RELATING TO INVESTIGATIONS § 1b.6 Preliminary investigations....

  12. 18 CFR 1b.5 - Formal investigations.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 18 Conservation of Power and Water Resources 1 2014-04-01 2014-04-01 false Formal investigations. 1b.5 Section 1b.5 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY GENERAL RULES RULES RELATING TO INVESTIGATIONS § 1b.5 Formal investigations....

  13. 18 CFR 1b.5 - Formal investigations.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 18 Conservation of Power and Water Resources 1 2012-04-01 2012-04-01 false Formal investigations. 1b.5 Section 1b.5 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY GENERAL RULES RULES RELATING TO INVESTIGATIONS § 1b.5 Formal investigations....

  14. 18 CFR 1b.6 - Preliminary investigations.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 18 Conservation of Power and Water Resources 1 2014-04-01 2014-04-01 false Preliminary investigations. 1b.6 Section 1b.6 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY GENERAL RULES RULES RELATING TO INVESTIGATIONS § 1b.6 Preliminary investigations....

  15. VCU OSP April 2015 PRINCIPAL INVESTIGATOR INFORMATION

    E-print Network

    Hammack, Richard

    Page 1 ©VCU OSP April 2015 PRINCIPAL INVESTIGATOR INFORMATION Principal Investigator (PI Name://www.vcu.edu/finance/costsharingauthorization.pdf *For Industry-Sponsored agreements, cost sharing of Principal Investigator's salary is not permitted Programs Internal Approval Form PD/PT No.: Date & Time: Copy Received: Yes No Reviewer: 0 0 0 0 0 0 0 0 0 0

  16. Chemistry. Teacher's Guide. 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 teaching guide is designed for use with the 19 chemistry investigations found in the student manual. These investigations focus on concepts related to:…

  17. 45 CFR 689.6 - Investigations.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 45 Public Welfare 3 2011-10-01 2011-10-01 false Investigations. 689.6 Section 689.6 Public Welfare Regulations Relating to Public Welfare (Continued) NATIONAL SCIENCE FOUNDATION RESEARCH MISCONDUCT § 689.6 Investigations. (a) When an awardee institution or another Federal agency has promptly initiated its own investigation, OIG may defer an...

  18. Kinesthetic Investigations in the Physics Classroom

    ERIC Educational Resources Information Center

    Whitworth, Brooke A.; Chiu, Jennifer L.; Bell, Randy L.

    2014-01-01

    Creating investigations that allow students to see physics in their everyday world and to be kinesthetically active outside of the traditional physics classroom can be incredibly engaging and effective. The investigations we developed were inquiry investigations in which students engaged in concrete experiences before we discussed the abstract…

  19. 78 FR 63988 - Clinical Investigator Training Course

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-25

    ... HUMAN SERVICES Food and Drug Administration Clinical Investigator Training Course AGENCY: Food and Drug... cosponsoring a 3- day training course for clinical investigators on scientific, ethical, and regulatory aspects of clinical trials. This training course is intended to provide clinical investigators with...

  20. 6 CFR 13.4 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 6 Domestic Security 1 2011-01-01 2011-01-01 false Investigation. 13.4 Section 13.4 Domestic Security DEPARTMENT OF HOMELAND SECURITY, OFFICE OF THE SECRETARY PROGRAM FRAUD CIVIL REMEDIES § 13.4 Investigation. (a) If an Investigating Official concludes that a subpoena pursuant to the Authority conferred...

  1. Final Report Principal Investigator: James W. Jones

    E-print Network

    Jagtap, Shrikant

    Final Report Principal Investigator: James W. Jones Co-Principal Investigator: Stephen M. Welch Investigators: K. J. Boote, G. G. Wilkerson, E. J. Dunphy, R. Heiniger, G. Hoogenboom, W. D. Batchelor, R. L. Vanderlip, W. Schapaugh, F. D. Whisler, H. Hodges, and J. T. Ritchie 598500.00 598550.00 598600.00 598650

  2. Investigational Drug/Device Accountability Policy Introduction

    E-print Network

    Subramanian, Venkat

    2/11/08 Investigational Drug/Device Accountability Policy Introduction: Good clinical research investigational drug or device used in a research trial at Washington University. This is true whether the study-initiated trial using department funds. Our institutional responsibility requires that any investigational drug

  3. A Classroom Investigation into the Catenary

    ERIC Educational Resources Information Center

    Staples, Ed

    2011-01-01

    The quest to find the equation of a catenary makes an ideal investigation for upper secondary students. In the modelling exercise that follows, no knowledge of calculus is required to gain a fairly good understanding of the nature of the curve. This investigation is best described as a scientific investigation--a "hands on" experience that…

  4. Integrating the Sciences to Investigate Groundwater Pollution

    ERIC Educational Resources Information Center

    Grady, Julie R.; Madden, Andrew S.

    2010-01-01

    Investigations that integrate concepts from geological sciences with biology and chemistry are rare. The authors present an investigation that introduces high school students to microbe-mineral interactions by tying together anaerobic respiration, reduction reactions, metal ion solubility, and groundwater pollution. During the investigation,…

  5. 78 FR 55262 - Guidance for Clinical Investigators, Sponsors, and Institutional Review Boards on Investigational...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-10

    ...FDA-2010-D-0503] Guidance for Clinical Investigators, Sponsors, and Institutional...announcing the availability of a guidance for clinical investigators, sponsors, and institutional...The guidance is intended to assist clinical investigators, sponsors,...

  6. Concept Mapping for Digital Forensic Investigations

    NASA Astrophysics Data System (ADS)

    Tanner, April; Dampier, David

    Research in digital forensics has yet to focus on modeling case domain information involved in investigations. This paper shows how concept mapping can be used to create an excellent alternative to the popular checklist approach used in digital forensic investigations. Concept mapping offers several benefits, including creating replicable, reusable techniques, simplifying and guiding the investigative process, capturing and reusing specialized forensic knowledge, and supporting training and knowledge management activities. The paper also discusses how concept mapping can be used to integrate case-specific details throughout the investigative process.

  7. 7 CFR 246.21 - Investigations.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ...Continued) FOOD AND NUTRITION SERVICE, DEPARTMENT OF AGRICULTURE CHILD NUTRITION PROGRAMS SPECIAL SUPPLEMENTAL NUTRITION PROGRAM FOR WOMEN, INFANTS AND CHILDREN Monitoring and Review § 246.21 Investigations. (a)...

  8. Advanced Propulsion Physics Lab: Eagleworks Investigations

    NASA Technical Reports Server (NTRS)

    Scogin, Tyler

    2014-01-01

    Eagleworks Laboratory is an advanced propulsions physics laboratory with two primary investigations currently underway. The first is a Quantum Vacuum Plasma Thruster (QVPT or Q-thrusters), an advanced electric propulsion technology in the development and demonstration phase. The second investigation is in Warp Field Interferometry (WFI). This is an investigation of Dr. Harold "Sonny" White's theoretical physics models for warp field equations using optical experiments in the Electro Optical laboratory (EOL) at Johnson Space Center. These investigations are pursuing technology necessary to enable human exploration of the solar system and beyond.

  9. 21 CFR 312.40 - General requirements for use of an investigational new drug in a clinical investigation.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...of an investigational new drug in a clinical investigation. 312.40 Section...of an investigational new drug in a clinical investigation. (a) An investigational new drug may be used in a clinical investigation if the following...

  10. Cancer Cluster Investigation in a School District.

    ERIC Educational Resources Information Center

    Neuberger, John S.; Pierce, J. Thomas; Lai, Sue Min

    1997-01-01

    Investigated a possible cancer cluster among employees at one elementary school. Results of an industrial hygiene survey and health investigation found a marginally significant increase of risk for breast cancer among females who had worked for the school but no other excess in cancers. There were no significant employee exposures to carcinogens…

  11. Earth Control and Investigations, Training Course 1972.

    ERIC Educational Resources Information Center

    Department of the Interior, Denver, CO. Engineering and Research Center.

    Compiled in this notebook is material from an Earth Control and Investigations Course offered by the Earth Science Branch of the Division of General Research, Engineering and Research Center, Denver, Colorado. The training is designed to promote consistency and uniformity in control and investigation procedures throughout the Bureau of…

  12. Earth Control and Investigations: Training Course 1974.

    ERIC Educational Resources Information Center

    Department of the Interior, Denver, CO. Engineering and Research Center.

    This document contains the outlines of each of 34 lectures given in the Earth Control and Investigations course sponsored by the Denver Laboratories. Topics covered include construction control of earth dams, canals, and filters; field and laboratory test procedures; soil classification and logging; and field investigations. (DT)

  13. 77 FR 39101 - Rules Relating to Investigations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-29

    ...After considering the public comments on its interim final rule for the Rules Relating to Investigations, the Bureau of Consumer Financial Protection (Bureau), pursuant to the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010 (Dodd-Frank Act), is making revisions to its procedures for investigations under section 1052 of the Dodd-Frank...

  14. ORIGINAL INVESTIGATION Tamoxifen disrupts consolidation and retrieval

    E-print Network

    Duchaine, Bradley C.

    ORIGINAL INVESTIGATION Tamoxifen disrupts consolidation and retrieval of morphine of TMX alone and in combination with estradiol (E2) on reward-related memory of morphine were investigated in adult male mice. Materials and methods Using an unbiased CPP paradigm, the ability of morphine

  15. Goals, Objectives, and Investigations for Venus Exploration

    E-print Network

    Rathbun, Julie A.

    Goals, Objectives, and Investigations for Venus Exploration May 2014 #12; ii Goals, Objectives, and Investigations for Venus Exploration At the VEXAG meeting in November 2012, it was resolved to update the scientific priorities and strategies for Venus exploration. To achieve this goal, three major

  16. INVESTIGATION Autosomal Admixture Levels Are Informative About

    E-print Network

    Rosenberg, Noah

    -term variance decreases as the sex bias from a contributing source population increases. This result can have been empirically investigated in a variety of human populations. In the Americas, these includeINVESTIGATION Autosomal Admixture Levels Are Informative About Sex Bias in Admixed Populations Amy

  17. Scaffolding Students' Thinking in Mathematical Investigations

    ERIC Educational Resources Information Center

    McCosker, Natalie; Diezmann, Carmel M.

    2009-01-01

    Mathematical investigations are loosely-defined, engaging problem-solving tasks that allow students to ask their own questions, explore their own interests and set their own goals. The value of investigations for students lies in their complexity. Scaffolding plays an important role in supporting students' high-level engagement by encouraging…

  18. 45 CFR 689.6 - Investigations.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 45 Public Welfare 3 2010-10-01 2010-10-01 false Investigations. 689.6 Section 689.6 Public Welfare Regulations Relating to Public Welfare (Continued) NATIONAL SCIENCE FOUNDATION RESEARCH MISCONDUCT § 689.6 Investigations. (a) When an awardee institution or another Federal agency has promptly initiated its...

  19. 45 CFR 689.6 - Investigations.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 45 Public Welfare 3 2014-10-01 2014-10-01 false Investigations. 689.6 Section 689.6 Public Welfare Regulations Relating to Public Welfare (Continued) NATIONAL SCIENCE FOUNDATION RESEARCH MISCONDUCT § 689.6 Investigations. (a) When an awardee institution or another Federal agency has promptly initiated its...

  20. 45 CFR 689.6 - Investigations.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 45 Public Welfare 3 2012-10-01 2012-10-01 false Investigations. 689.6 Section 689.6 Public Welfare Regulations Relating to Public Welfare (Continued) NATIONAL SCIENCE FOUNDATION RESEARCH MISCONDUCT § 689.6 Investigations. (a) When an awardee institution or another Federal agency has promptly initiated its...

  1. 45 CFR 689.6 - Investigations.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 45 Public Welfare 3 2013-10-01 2013-10-01 false Investigations. 689.6 Section 689.6 Public Welfare Regulations Relating to Public Welfare (Continued) NATIONAL SCIENCE FOUNDATION RESEARCH MISCONDUCT § 689.6 Investigations. (a) When an awardee institution or another Federal agency has promptly initiated its...

  2. LEWIS SPACECRAFT MISSION FAILURE INVESTIGATION BOARD

    E-print Network

    Rhoads, James

    was the direct result of an implementation of a technically flawed Safe Mode in the Attitude Control System Investigation Board was established to gather and analyze information and determine the facts as to the actual and the contractor in order to determine if they may have contributed to the failure. The investigation process used

  3. 21 CFR 812.46 - Monitoring investigations.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... an unreasonable risk to subjects shall terminate all investigations or parts of investigations presenting that risk as soon as possible. Termination shall occur not later than 5 working days after the... notice of the effect. (c) Resumption of terminated studies. If the device is a significant risk device,...

  4. 21 CFR 812.46 - Monitoring investigations.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... an unreasonable risk to subjects shall terminate all investigations or parts of investigations presenting that risk as soon as possible. Termination shall occur not later than 5 working days after the... notice of the effect. (c) Resumption of terminated studies. If the device is a significant risk device,...

  5. 25 Low-Cost Biology Investigations.

    ERIC Educational Resources Information Center

    Beller, Joel

    This book is a compilation of biology labs that are safe, simple, dependable, economical, and diverse. Some of the 25 investigations contained within this book involve organisms that are free for the taking and returned to the environment unharmed following the investigations. Students gain experience in making observations, forming hypotheses,…

  6. The Locust Jump: An Integrated Laboratory Investigation

    ERIC Educational Resources Information Center

    Scott, Jon

    2005-01-01

    The locust is well known for its ability to jump large distances to avoid predation. This class sets out a series of investigations into the mechanisms underlying the jump enabling students to bring together information from biomechanics, muscle physiology, and anatomy. The nature of the investigation allows it to be undertaken at a number of…

  7. The Power of Investigative Calculus Projects

    ERIC Educational Resources Information Center

    Perrin, John Robert; Quinn, Robert J.

    2008-01-01

    This article describes investigative calculus projects in which students explore a question or problem of their own construction. Three exemplary pieces of student work are showcased. Investigative calculus projects are an excellent way to foster student understanding and interest in calculus. (Contains 4 figures.)

  8. ENGINEERING ASPECTS OF 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. 77 FR 60440 - Clinical Investigator Training Course

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-03

    ... HUMAN SERVICES Food and Drug Administration Clinical Investigator Training Course AGENCY: Food and Drug... are cosponsoring a 3- day training course for clinical investigators on scientific, ethical, and regulatory aspects of clinical trials. This training course is intended to provide clinical...

  10. MMS 2008-009 Investigations of Chemosynthetic

    E-print Network

    Miller, Scott

    OCS Study MMS 2008-009 Investigations of Chemosynthetic Communities on the Lower Continental Slope of Mexico OCS Region #12;OCS Study MMS 2008-009 Investigations of Chemosynthetic Communities on the Lower Prepared under MMS Contract 1435-01-05-CT-39187 (M05PC00018) by TDI-Brooks International Inc. 1902 Pinon

  11. 40 CFR 7.120 - Complaint investigations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... recipients of Federal assistance (see 28 CFR part 42, subpart H and 29 CFR part 1691). Complainants are... administratively with the Equal Employment Opportunity Commission (see 29 CFR part 1626). * * * (d) * * * (1... Compliance Procedures § 7.120 Complaint investigations. The OCR shall promptly investigate all...

  12. 40 CFR 7.120 - Complaint investigations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... recipients of Federal assistance (see 28 CFR part 42, subpart H and 29 CFR part 1691). Complaints of... with the Equal Employment Opportunity Commission (see 29 CFR part 1626). Complainants are encouraged... Compliance Procedures § 7.120 Complaint investigations. The OCR shall promptly investigate all...

  13. Investigations in Life Science, Junior High.

    ERIC Educational Resources Information Center

    Stephenson, Robert L.

    Developed for teachers of junior high school science classes, this unit presents ten investigations on plant growth, animal life, pond life, and general science interests. These investigations are designed to accompany any popular life science textbooks, may be used to supplement a year-long course in life science, are intended as a springboard…

  14. An Investigation of Double Bass Vibrato Characteristics

    ERIC Educational Resources Information Center

    Mick, James

    2015-01-01

    The purpose of this study was to investigate and describe various vibrato characteristics of university double bass students. The primary objectives were: (1) to describe vibrato rate and width for commonly used fingers in first, fourth, and thumb positions; (2) to investigate whether students initiate vibrato in an upward or downward direction;…

  15. 18 CFR 808.12 - Investigative powers.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 18 Conservation of Power and Water Resources 2 2010-04-01 2010-04-01 false Investigative powers. 808.12 Section 808.12 Conservation of Power and Water Resources SUSQUEHANNA RIVER BASIN COMMISSION HEARINGS AND ENFORCEMENT ACTIONS Compliance and Enforcement § 808.12 Investigative powers. (a)...

  16. 18 CFR 808.12 - Investigative powers.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 18 Conservation of Power and Water Resources 2 2011-04-01 2011-04-01 false Investigative powers. 808.12 Section 808.12 Conservation of Power and Water Resources SUSQUEHANNA RIVER BASIN COMMISSION HEARINGS AND ENFORCEMENT ACTIONS Compliance and Enforcement § 808.12 Investigative powers. (a)...

  17. 18 CFR 808.12 - Investigative powers.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 18 Conservation of Power and Water Resources 2 2012-04-01 2012-04-01 false Investigative powers. 808.12 Section 808.12 Conservation of Power and Water Resources SUSQUEHANNA RIVER BASIN COMMISSION HEARINGS AND ENFORCEMENT ACTIONS Compliance and Enforcement § 808.12 Investigative powers. (a)...

  18. 18 CFR 808.12 - Investigative powers.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 18 Conservation of Power and Water Resources 2 2014-04-01 2014-04-01 false Investigative powers. 808.12 Section 808.12 Conservation of Power and Water Resources SUSQUEHANNA RIVER BASIN COMMISSION HEARINGS AND ENFORCEMENT ACTIONS Compliance and Enforcement § 808.12 Investigative powers. (a)...

  19. 18 CFR 808.12 - Investigative powers.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 18 Conservation of Power and Water Resources 2 2013-04-01 2012-04-01 true Investigative powers. 808.12 Section 808.12 Conservation of Power and Water Resources SUSQUEHANNA RIVER BASIN COMMISSION HEARINGS AND ENFORCEMENT ACTIONS Compliance and Enforcement § 808.12 Investigative powers. (a)...

  20. 30 CFR 50.11 - Investigation.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 1 2013-07-01 2013-07-01 false Investigation. 50.11 Section 50.11 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR ACCIDENTS, INJURIES, ILLNESSES..., ILLNESSES, EMPLOYMENT, AND COAL PRODUCTION IN MINES Notification, Investigation, Preservation of...

  1. 30 CFR 50.11 - Investigation.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Investigation. 50.11 Section 50.11 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR ACCIDENTS, INJURIES, ILLNESSES..., ILLNESSES, EMPLOYMENT, AND COAL PRODUCTION IN MINES Notification, Investigation, Preservation of...

  2. 30 CFR 50.11 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 1 2011-07-01 2011-07-01 false Investigation. 50.11 Section 50.11 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR ACCIDENTS, INJURIES, ILLNESSES..., ILLNESSES, EMPLOYMENT, AND COAL PRODUCTION IN MINES Notification, Investigation, Preservation of...

  3. 30 CFR 50.11 - Investigation.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 1 2014-07-01 2014-07-01 false Investigation. 50.11 Section 50.11 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR ACCIDENTS, INJURIES, ILLNESSES..., ILLNESSES, EMPLOYMENT, AND COAL PRODUCTION IN MINES Notification, Investigation, Preservation of...

  4. 30 CFR 50.11 - Investigation.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 1 2012-07-01 2012-07-01 false Investigation. 50.11 Section 50.11 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR ACCIDENTS, INJURIES, ILLNESSES..., ILLNESSES, EMPLOYMENT, AND COAL PRODUCTION IN MINES Notification, Investigation, Preservation of...

  5. DNA Barcoding Investigations Bring Biology to Life

    ERIC Educational Resources Information Center

    Musante, Susan

    2010-01-01

    This article describes how DNA barcoding investigations bring biology to life. Biologists recognize the power of DNA barcoding not just to teach biology through connections to the real world but also to immerse students in the exciting process of science. As an investigator in the Program for the Human Environment at Rockefeller University in New…

  6. 77 FR 44174 - Procedures for Safety Investigations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-27

    ... President regarding health and safety issues at the Department of Energy's (DOE) defense nuclear facilities... investigations. (a) The Board shall investigate any event or practice at a Department of Energy defense nuclear..., regulations, and requirements) at Department of Energy defense nuclear facilities; (2) To...

  7. History Scene Investigations: From Clues to Conclusions

    ERIC Educational Resources Information Center

    McIntyre, Beverly

    2011-01-01

    In this article, the author introduces a social studies lesson that allows students to learn history and practice reading skills, critical thinking, and writing. The activity is called History Scene Investigation or HSI, which derives its name from the popular television series based on crime scene investigations (CSI). HSI uses discovery learning…

  8. Investigating Elementary Teachers' Conceptions of Animal Classification

    ERIC Educational Resources Information Center

    Burgoon, Jacob N.; Duran, Emilio

    2012-01-01

    Numerous studies have been conducted regarding alternative conceptions about animal diversity and classification, many of which have used a cross-age approach to investigate how students' conceptions change over time. None of these studies, however, have investigated teachers' conceptions of animal classification. This study was intended to…

  9. 16 CFR 1605.6 - Investigational hearings.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 16 Commercial Practices 2 2014-01-01 2014-01-01 false Investigational hearings. 1605.6 Section 1605.6 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FLAMMABLE FABRICS ACT REGULATIONS INVESTIGATIONS, INSPECTIONS AND INQUIRIES PURSUANT TO THE FLAMMABLE FABRICS ACT Procedures for...

  10. 16 CFR 1605.6 - Investigational hearings.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 16 Commercial Practices 2 2011-01-01 2011-01-01 false Investigational hearings. 1605.6 Section 1605.6 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FLAMMABLE FABRICS ACT REGULATIONS INVESTIGATIONS, INSPECTIONS AND INQUIRIES PURSUANT TO THE FLAMMABLE FABRICS ACT Procedures for...

  11. 16 CFR 1605.6 - Investigational hearings.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 16 Commercial Practices 2 2010-01-01 2010-01-01 false Investigational hearings. 1605.6 Section 1605.6 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FLAMMABLE FABRICS ACT REGULATIONS INVESTIGATIONS, INSPECTIONS AND INQUIRIES PURSUANT TO THE FLAMMABLE FABRICS ACT Procedures for...

  12. 16 CFR 1605.6 - Investigational hearings.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 16 Commercial Practices 2 2013-01-01 2013-01-01 false Investigational hearings. 1605.6 Section 1605.6 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FLAMMABLE FABRICS ACT REGULATIONS INVESTIGATIONS, INSPECTIONS AND INQUIRIES PURSUANT TO THE FLAMMABLE FABRICS ACT Procedures for...

  13. 16 CFR 1605.6 - Investigational hearings.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 16 Commercial Practices 2 2012-01-01 2012-01-01 false Investigational hearings. 1605.6 Section 1605.6 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FLAMMABLE FABRICS ACT REGULATIONS INVESTIGATIONS, INSPECTIONS AND INQUIRIES PURSUANT TO THE FLAMMABLE FABRICS ACT Procedures for...

  14. AN INVESTIGATION OF OYSTER PRODUCING AREAS

    E-print Network

    AN INVESTIGATION OF OYSTER PRODUCING AREAS IN LOUISIANA AND MISSISSIPPI DAMAGED BY FLOOD WATERS UNITED STATES DEPARTMENT OF THE INTERIOR FISH AND WILDLIFE SERVICE #12;#12;AN INVESTIGATION OF OYSTER Serrioe Albert M. Day, Director Special Scientific Report - Fisheries No. 8 AN INVESTIGAnON OF OYSTER

  15. Teaching Adult Students Mathematical Investigations-6.

    ERIC Educational Resources Information Center

    Angiama, R. O.

    Teaching Adult Students Mathematical Investigation is based on the continuing research work carried out for the last ten years of teaching on the Foundation Course in Mathematics at Goldsmiths, University of London. Teaching Mathematical Investigation to adult students is a very challenging and often rewarding experience for adult educators as…

  16. Human Factors in Cabin Accident Investigations

    NASA Technical Reports Server (NTRS)

    Chute, Rebecca D.; Rosekind, Mark R. (Technical Monitor)

    1996-01-01

    Human factors has become an integral part of the accident investigation protocol. However, much of the investigative process remains focussed on the flight deck, airframe, and power plant systems. As a consequence, little data has been collected regarding the human factors issues within and involving the cabin during an accident. Therefore, the possibility exists that contributing factors that lie within that domain may be overlooked. The FAA Office of Accident Investigation is sponsoring a two-day workshop on cabin safety accident investigation. This course, within the workshop, will be of two hours duration and will explore relevant areas of human factors research. Specifically, the three areas of discussion are: Information transfer and resource management, fatigue and other physical stressors, and the human/machine interface. Integration of these areas will be accomplished by providing a suggested checklist of specific cabin-related human factors questions for investigators to probe following an accident.

  17. Death investigation systems and disease surveillance.

    PubMed

    McGowan, C R; Viens, A M

    2011-07-01

    Medico-legal death investigation systems have the potential to play an important role in disease surveillance. While these systems are in place to serve a public function, the degree to which they are independent of central government can vary depending on jurisdiction. How these systems use this independence may present problems for public health initiatives, as it allows death investigators to decline to participate in government-led surveillance regardless of how critical the studies may be to public health and safety. A recent illustration of this problem in the UK is examined, as well as general lessons for removing impediments to death investigation systems participating in public health research. PMID:21156100

  18. McGee Ranch CPT investigation

    SciTech Connect

    Cassem, B.R.

    1993-06-15

    Applied Research Associated, Inc. (ARA), under contract to Argonne National Laboratory to perform work for Westinghouse Hanford Company (WHC), conducted Peizo Cone Penetration (P-CPT) Tests as part of an investigation of the fine-textured soils at the McGee Ranch Site. The purpose of the investigation was to characterize a potential borrow area for fine-textured soil materials that would be used to construct multi-layer closure covers on the Hanford Site. As part of the investigation, WHC conducted non auger-drill borings on the site during September 1992. ARA`s objective was to characterize the soils at the McGee Ranch site using the cone penetrometer and compare the findings with the lithologic characterization obtained from geologic boring logs. This report documents ARA`s site investigation efforts, test techniques, and analysis of the data for field work conducted April 14 and 15, 1993.

  19. Investigating Database Security in a Networked Environment

    E-print Network

    Wagner, Paul J.

    Investigating Database Security in a Networked Environment Matthew Giuliani Computer Science wagnerpj@uwec.edu Abstract Database and network security have traditionally been separate fields within flowing between client and database systems. Although vender specific information is available for many

  20. Investigative study of holographic recording materials development

    NASA Technical Reports Server (NTRS)

    1972-01-01

    The potential of certain cis-trans isomers and doped LiNbO3 for the holographic read/write/erase memory application was investigated. The cis-trans work involved the photochemical investigation of a number of potential materials as well as specific molecular engineering efforts on alpha-methyl stilbene and its derivatives. These efforts resulted in an increase in the change in index of refraction, and thereby, in potential recording utility, of an order of magnitude. The work on LiNbO3 was directed toward a preliminary investigation of the dynamics of the writing process. Several samples and a variety of writing conditions were investigated. An unexpected and as yet unexplained improvement in material behavior with continued recycling was observed. In addition, some effort was devoted to an analysis of the physical conditions under which several current theories of the optical damage process are valid.

  1. Investigating packaging effects on bandgap references

    E-print Network

    Palakodety, Ravi (Ravi Kiran)

    2007-01-01

    This thesis investigates packaging effects on precision bandgap voltage references used in LTC switching regulators. Packaging stress causes a mean offset and room temperature distribution widening of the bandgap reference ...

  2. CPTAC Proteome Characterization Center Principal Investigators

    Cancer.gov

    The following are the five Clinical Proteomic Tumor Analysis Consortium (CPTAC) teams, representing a network of seven Proteome Characterization Centers.  Teams are listed by grant title with their respective Principal Investigators: Cancer Proteomic

  3. Investigation of governance in Scottish charities 

    E-print Network

    Lambert, Victoria

    2011-11-23

    This thesis investigates governance in large Scottish charities. In particular, the focus is on internal aspects of governance, predominantly the functioning of the board. The influence of business on charities is also ...

  4. 10 CFR 37.25 - Background investigations.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... claims to be. A licensee shall review official identification documents (e.g., driver's license; passport... investigation; and attempt to obtain the information from an alternate source. (b) Grandfathering....

  5. Investigation of critical burning of fuel droplets

    NASA Technical Reports Server (NTRS)

    Faeth, G. M.

    1979-01-01

    The general problem of spray combustion was investigated. The combustion of bipropellent droplets; combustion of hydrozine fuels; and combustion of sprays were studied. A model was developed to predict mean velocities and temperatures in a combusting gas jet.

  6. Investigation of a regenerative damping concept 

    E-print Network

    Fodor, Michael Glenn

    1993-01-01

    in the efficiency of many physical systems is realized by the incorporation of regenerative devices, and all devices which dissipate power are candidates for investigation as regenerative systems. The viscous damper is a dissipative device which may be suitable...

  7. 45 CFR 689.6 - Investigations.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...689.6 Section 689.6 Public Welfare Regulations Relating to Public Welfare (Continued) NATIONAL SCIENCE FOUNDATION RESEARCH MISCONDUCT § 689.6 Investigations. (a) When an awardee institution or another Federal...

  8. 45 CFR 689.6 - Investigations.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...689.6 Section 689.6 Public Welfare Regulations Relating to Public Welfare (Continued) NATIONAL SCIENCE FOUNDATION RESEARCH MISCONDUCT § 689.6 Investigations. (a) When an awardee institution or another Federal...

  9. Glassy materials investigated for nuclear reactor applications

    NASA Technical Reports Server (NTRS)

    Lynch, E. D.

    1968-01-01

    Studies determine the feasibility of preparing fuel-bearing glasses and glasses bearing neutron-absorbing materials for use as crystalline fuel and control rods for reactors. Properties investigated were devitrification resistance, urania solubility, and density.

  10. Investigation of asymmetric plasma blob dynamics

    E-print Network

    Soane, Alexander (Alexander Visotsky)

    2009-01-01

    The dynamics of asymmetric blobs is investigated in the Versatile Toroidal Facility (VTF) at MIT. Blobs are local regions of enhanced plasma density. Blobs are relevant to several areas of physics research, including fusion ...

  11. Investigation of Variables Associated with Vaccine Acceptance

    E-print Network

    Black, Lora L.

    2011-12-31

    Abstract The current study investigated the relationship between the Health Belief Model (HBM) framework, social variables, personality factors, and H1N1 flu vaccine acceptance. Four hundred thirty two undergraduate students completed online...

  12. PILOT INVESTIGATION OF SECONDARY SLUDGE DEWATERING ALTERNATIVES

    EPA Science Inventory

    A pilot investigation of biological sludge thickening and dewatering alternatives, including pressure filtration, precoat vacuum filtration, filter belt pressing, capillary suction, dewatering, gravity filtration, centrifugation, and ultrafiltration has been conducted on waste ac...

  13. INVESTIGATION Evolutionary Branching in a Finite Population

    E-print Network

    Wakano, Joe Yuichiro

    INVESTIGATION Evolutionary Branching in a Finite Population: Deterministic Branching vs. Stochastic, Meiji University, Kawasaki 214-8571, Japan, Japan Science and Technology, Precursory Research for Embryonic Science and Technology, Tokyo 102-8666, Japan, and Department of Biology, Kyushu University

  14. INVESTIGATION Organization of the Synaptonemal Complex During

    E-print Network

    INVESTIGATION Organization of the Synaptonemal Complex During Meiosis in Caenorhabditis elegans round of DNA replication with two consecutive rounds of meiotic chromosome segregation. During meiosis I (the reductional division), homologs segregate away from each other, while during meiosis II (the

  15. Investigation of stepped labyrinth seal leakage performance 

    E-print Network

    Reed, Thomas Stanley

    1993-01-01

    performed by individually varying geometric variables and obtaining corresponding leakage measurements. Dimension variables under investigation were surface roughness, radial clearance, step height, annular groove configuration in stator surface, and annular...

  16. Investigating intermediates in 6-methylsalicylic acid biosynthesis

    E-print Network

    Potter, Helen Katherine

    2011-07-12

    orcinol (8) (Figure 1.2).20 He proposed that this could be formed via a polyketone intermediate. Further investigations such as the formation of a naphthalene derivative from diacetylacetone and the formation of orcinol from ethyl acetoacetate21 led...

  17. 29 CFR 1980.104 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...DISCRIMINATION COMPLAINTS UNDER SECTION 806 OF THE CORPORATE AND CRIMINAL FRAUD ACCOUNTABILITY ACT OF 2002, TITLE VIII OF THE SARBANES-OXLEY ACT OF 2002 Complaints, Investigations, Findings and Preliminary Orders § 1980.104...

  18. 29 CFR 1980.104 - Investigation.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...DISCRIMINATION COMPLAINTS UNDER SECTION 806 OF THE CORPORATE AND CRIMINAL FRAUD ACCOUNTABILITY ACT OF 2002, TITLE VIII OF THE SARBANES-OXLEY ACT OF 2002 Complaints, Investigations, Findings and Preliminary Orders § 1980.104...

  19. INVESTIGATOR CHECKLIST FOR STUDIES INVOLVING PRISONERS

    E-print Network

    Flann, Nicholas

    more prevalent in prisons than elsewhere; and research on social and psychological problemsINVESTIGATOR CHECKLIST FOR STUDIES INVOLVING PRISONERS DEFINITION OF "PRISONER" FOR THE APPLICATION OF SPECIAL PROTECTIONS Prisoner means any individual involuntarily confined or detained in a penal

  20. ENGINEERING ASPECTS OF WATERBORNE OUTBREAK INVESTIGATION

    EPA Science Inventory

    The subject material in this manuscript covers the engineering aspects of waterborne outbreak investigation. Major areas included in this discussion are: evaluation of disinfection (concentration and contact time, pH and temperature, interference); evaluation of the water system ...

  1. Mathematical Investigations Using Logo. Part Two.

    ERIC Educational Resources Information Center

    Brown, Ken

    1986-01-01

    Programs (using Logo) developed by children to produce multiples, the Fibonacci series, and square numbers are presented, with graphical representations of functions introduced. Another investigation involves drawing a circle using turtle graphics. (MNS)

  2. INVESTIGATION Distortions in Genealogies due to Purifying

    E-print Network

    Desai, Michael

    INVESTIGATION Distortions in Genealogies due to Purifying Selection and Recombination Lauren E overall diversity and distorting the shapes of genealogies. Recombination attenuates these effects; however, purifying selection can significantly distort genealogies even for substantial recombination

  3. Investigating Mathematics as a Community of Learners.

    ERIC Educational Resources Information Center

    Drier, Hollylynne Stohl

    2000-01-01

    Describes how third grade students worked together to investigate relationships between fractions and percents using a spreadsheet tool. Highlights a dynamic classroom environment in which students and teachers work together as a community to learn and do mathematics. (ASK)

  4. Mölg Receives 2009 Cryosphere Young Investigator Award

    NASA Astrophysics Data System (ADS)

    Kaser, Georg; Mölg, Thomas

    2010-05-01

    Thomas Mölg received the 2009 Cryosphere Young Investigator Award at the 2009 AGU Fall Meeting, held 14-18 December in San Francisco, Calif. The award is for a significant contribution to cryospheric science and technology.

  5. Investigations in Marine Chemistry: Tide Pool Ecology.

    ERIC Educational Resources Information Center

    Schlenker, Richard M.

    Students investigated the salinity of tide pools at different levels in the intertidal zone. Data are analyzed collectively. Students graphed and discussed data. Included are suggestions for evaluation and further study. (Author)

  6. Investigator Resources | Translational Research Program (TRP)

    Cancer.gov

    Skip to Content Search this site Investigator Resources Main SPORE Program Announcements Pre-Application Materials Frequently Used Terms SPORE Grant Application Forms Last Updated: 10/23/13 SPORE Grant Application Forms Application Submission System

  7. INVESTIGATION OF THE ORION RESEARCH AMMONIA MONITOR

    EPA Science Inventory

    The Orion Research ammonia monitor was investigated using the Orion specifications and environmental considerations as a guide. Laboratory tests under controlled environmental conditions showed the electronic stability (drift) to be well within + or - 10 percent of reading over t...

  8. 45 CFR 689.6 - Investigations.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...Regulations Relating to Public Welfare (Continued) NATIONAL SCIENCE FOUNDATION RESEARCH MISCONDUCT § 689.6 Investigations... (2) Review of procedures or methods and inspection of laboratory materials, specimens, and records at awardee...

  9. 45 CFR 689.6 - Investigations.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...Regulations Relating to Public Welfare (Continued) NATIONAL SCIENCE FOUNDATION RESEARCH MISCONDUCT § 689.6 Investigations... (2) Review of procedures or methods and inspection of laboratory materials, specimens, and records at awardee...

  10. INVESTIGATION Accumulation of Spontaneous Mutations in the

    E-print Network

    Azevedo, Ricardo

    INVESTIGATION Accumulation of Spontaneous Mutations in the Ciliate Tetrahymena thermophila Hong eliminated by natural selection. In the ciliate Tetrahymena thermophila, mutations can accumulate Tetrahymena thermo- phila (Chromalveolata) is particularly suitable for MA be- cause of its unusual nuclear

  11. 77 FR 51943 - Procedures for Safety Investigations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-28

    ...DEFENSE NUCLEAR FACILITIES SAFETY BOARD 10 CFR Part 1708 Procedures...Investigations AGENCY: Defense Nuclear Facilities Safety Board. ACTION: Proposed...SUMMARY: The Defense Nuclear Facilities Safety Board is extending the...

  12. Mechanisms of superconductivity investigated by nuclear radiation

    NASA Technical Reports Server (NTRS)

    Autler, S. H.; Coffey, H. T.; Keller, E. L.; Patterson, A.

    1967-01-01

    Investigation focused on the behavior of superconducting magnet and its constituent materials during and after exposure to nuclear radiation. The results will indicate the feasibility of their use in diverse applications and various environments.

  13. Clinical Investigations Respiration 2004;71:353359

    E-print Network

    Timmer, Jens

    Clinical Investigations Respiration 2004;71:353­359 DOI: 10.1159/000079639 Incomplete Forced by the American Thoracic #12;354 Respiration 2004;71:353­359 Steltner/Vogel/Sprung/Timmer/Guttmann/ Sorichter

  14. 29 CFR 1601.15 - Investigative authority.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...fact-finding conference with the parties prior to a determination on a charge of discrimination. The conference is primarily an investigative forum intended to define the issues, to determine which elements are undisputed, to resolve those...

  15. 12 CFR 308.503 - Investigations.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... official to report violations of criminal law to the Attorney General. ... and Banking FEDERAL DEPOSIT INSURANCE CORPORATION PROCEDURE AND RULES OF PRACTICE RULES OF PRACTICE AND PROCEDURE Program Fraud Civil Remedies and Procedures § 308.503 Investigations. (a) If...

  16. 5 CFR 2638.503 - Agency investigations.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ...2011-01-01 2011-01-01 false Agency investigations. 2638.503 Section...OFFICE OF GOVERNMENT ETHICS AND EXECUTIVE AGENCY ETHICS PROGRAM RESPONSIBILITIES Corrective...in Cases Involving Individual Executive Agency Employees § 2638.503 Agency...

  17. 5 CFR 2638.503 - Agency investigations.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ...2012-01-01 2012-01-01 false Agency investigations. 2638.503 Section...OFFICE OF GOVERNMENT ETHICS AND EXECUTIVE AGENCY ETHICS PROGRAM RESPONSIBILITIES Corrective...in Cases Involving Individual Executive Agency Employees § 2638.503 Agency...

  18. 5 CFR 2638.503 - Agency investigations.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ...2013-01-01 2013-01-01 false Agency investigations. 2638.503 Section...OFFICE OF GOVERNMENT ETHICS AND EXECUTIVE AGENCY ETHICS PROGRAM RESPONSIBILITIES Corrective...in Cases Involving Individual Executive Agency Employees § 2638.503 Agency...

  19. 5 CFR 2638.503 - Agency investigations.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ...2014-01-01 2014-01-01 false Agency investigations. 2638.503 Section...OFFICE OF GOVERNMENT ETHICS AND EXECUTIVE AGENCY ETHICS PROGRAM RESPONSIBILITIES Corrective...in Cases Involving Individual Executive Agency Employees § 2638.503 Agency...

  20. 5 CFR 2638.503 - Agency investigations.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ...2010-01-01 2010-01-01 false Agency investigations. 2638.503 Section...OFFICE OF GOVERNMENT ETHICS AND EXECUTIVE AGENCY ETHICS PROGRAM RESPONSIBILITIES Corrective...in Cases Involving Individual Executive Agency Employees § 2638.503 Agency...

  1. RCRA Facility Investigation/Remedial Investigation Report for the Grace Road Site (631-22G)

    SciTech Connect

    Palmer, E.

    1998-10-02

    This report summarizes the activities and documents the results of a Resource Conservation and Recovery Act Facility Investigation/Remedial Investigation conducted at Grace Road Site on the Savannah River Site near Aiken, South Carolina.

  2. The SIR-B science investigations plan

    NASA Technical Reports Server (NTRS)

    1984-01-01

    Shuttle Imaging Radar-B (SIR-B) is the second synthetic aperture radar (SAR) to be flown on the National Aeronautics and Space Administration's Space Transportation System (Shuttle). It is the first spaceborne SAR to feature an antenna that allows acquisition of multiincidence angle imagery. An international team of scientists will use SIR-B to conduct investigations in a wide range of disciplines. The radar, the mission, and the investigations are described.

  3. Geologic investigations of outer planets satellites

    NASA Technical Reports Server (NTRS)

    Strom, R. G.

    1984-01-01

    Four tests are examined: (1) investigation of volcanism on Io; Interim results of thermal and structural modeling of volcanism on Io are presented, (2) a study of the ancient heavily cratered regions on Ganymede, (3) a geologic comparison of the cratering record on Ganymede and Callisto, and (4) a geological and chemical investigation of internal resurfacing processes on the Saturnian satellites. Tasks 2, 3, and 4 utilize Voyager imaging data.

  4. Internal compliance investigations can reduce government sanctions.

    PubMed

    Mustokoff, M M; Yecies, M S

    1997-10-01

    An effective corporate compliance program is facilitated by three essential elements: a well-qualified compliance officer; a policy of immediate investigation of every report of potential fraud and abuse; and clearly defined roles for both corporate and outside counsel in conducting the investigations. A government agency is less likely to exercise the full extent of its powers when these elements are in place and three is evidence of a sincere compliance effort. PMID:10173966

  5. Investigation of laser polarized xenon magnetic resonance

    NASA Technical Reports Server (NTRS)

    Walsworth, Ronald L.

    1998-01-01

    Ground-based investigations of a new biomedical diagnostic technology: nuclear magnetic resonance of laser polarized noble gas are addressed. The specific research tasks discussed are: (1) Development of a large-scale noble gas polarization system; (2) biomedical investigations using laser polarized noble gas in conventional (high magnetic field) NMR systems; and (3) the development and application of a low magnetic field system for laser polarized noble gas NMR.

  6. Police investigations: discretion denied yet undeniably exercised

    PubMed Central

    Belur, J.; Tilley, N.; Osrin, D.; Daruwalla, N.; Kumar, M.; Tiwari, V.

    2014-01-01

    Police investigations involve determining whether a crime has been committed, and if so what type of crime, who has committed it and whether there is the evidence to charge the perpetrators. Drawing on fieldwork in Delhi and Mumbai, this paper explores how police investigations unfolded in the specific context of women’s deaths by burning in India. In particular, it focuses on the use of discretion despite its denial by those exercising it. In India, there are distinctive statutes relating to women’s suspicious deaths, reflecting the widespread expectation that the bride’s family will pay a dowry to the groom’s family and the tensions to which this may on occasion give rise in the early years of a marriage. Often, there are conflicting claims influencing how the woman’s death is classified. These in turn affect police investigation. The nature and direction of police discretion in investigating women’s deaths by burning reflect in part the unique nature of the legislation and the particular sensitivities in relation to these types of death. They also highlight processes that are liable to be at work in any crime investigation. It was found that police officers exercised unacknowledged discretion at seven specific points in the investigative process, with potentially significant consequences for the achievement of just outcomes: first response, recording the victim’s ‘dying declaration’, inquest, registering of the ‘First Information Report’, collecting evidence, arrest and framing of the charges. PMID:26376482

  7. Tripod-BETA: Incident investigation and analysis

    SciTech Connect

    Doran, J.A.; Graaf, G.C. van der

    1996-12-31

    Tripod-BETA is a methodology for conducting an incident analysis in parallel with the investigation, supported by a PC based tool. Interaction between these two processes provides the investigators with confirmation of the relevance of their fact gathering and highlights avenues of investigation leading to latent failures. The benefit to the analysis process is that logical anomalies can be highlighted and resolved while The investigation is still active. Tripod-BETA focuses initially on the accident mechanism - the physical process of the accident - and uses it as a structure to identify the controls and defenses that should have been in place. For the incident to happen these controls and defenses either were missing or failed. The investigation then examines the immediate and latent failures behind each missing or failed defense, following the Tripod theory of accident causation. Tripod-BETA software provides the means to collect and assemble investigation facts and manipulate them on screen into a graphic representation of the event and its causes - an accident tree. The logic of the tree structure (labeling and connections) can be tested to ensure that it conforms to the concepts of the Hazard and Effects Management Process (HEMP) and the Tripod theory. When anomalies and omissions have been resolved, a draft accident report can be auto-generated for final editing using a word processing package.

  8. Science Investigation That Best Supports Student Learning: Teachers' Understanding of Science Investigation

    ERIC Educational Resources Information Center

    Moeed, Azra

    2013-01-01

    Internationally, learning science through investigation is promoted as a preferred pedagogical approach. Research presented takes a view that such learning depends on how teachers understand science investigation. Teachers' understanding of science investigation was an aspect of an interpretive case study of the phenomenon of science…

  9. 78 FR 55262 - Guidance for Clinical Investigators, Sponsors, and Institutional Review Boards on Investigational...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-10

    ... regulations to a planned clinical investigation. In the Federal Register of October 14, 2010 (75 FR 63189... HUMAN SERVICES Food and Drug Administration Guidance for Clinical Investigators, Sponsors, and Institutional Review Boards on Investigational New Drug Applications--Determining Whether Human Research...

  10. Injury and Illness Prevention Programs Investigation of Accidents, Injuries and Illnesses INVESTIGATION OF ACCIDENTS,

    E-print Network

    Leistikow, Bruce N.

    Injury and Illness Prevention Programs Investigation of Accidents, Injuries and Illnesses 1 INVESTIGATION OF ACCIDENTS, INJURIES AND ILLNESSES AG TOOL 1 I. Purpose Investigations are conducted to find out the cause of accidents, injuries and illnesses, and to prevent similar events from happening in the future

  11. Cyber Forensics Ontology for Cyber Criminal Investigation

    NASA Astrophysics Data System (ADS)

    Park, Heum; Cho, Sunho; Kwon, Hyuk-Chul

    We developed Cyber Forensics Ontology for the criminal investigation in cyber space. Cyber crime is classified into cyber terror and general cyber crime, and those two classes are connected with each other. The investigation of cyber terror requires high technology, system environment and experts, and general cyber crime is connected with general crime by evidence from digital data and cyber space. Accordingly, it is difficult to determine relational crime types and collect evidence. Therefore, we considered the classifications of cyber crime, the collection of evidence in cyber space and the application of laws to cyber crime. In order to efficiently investigate cyber crime, it is necessary to integrate those concepts for each cyber crime-case. Thus, we constructed a cyber forensics domain ontology for criminal investigation in cyber space, according to the categories of cyber crime, laws, evidence and information of criminals. This ontology can be used in the process of investigating of cyber crime-cases, and for data mining of cyber crime; classification, clustering, association and detection of crime types, crime cases, evidences and criminals.

  12. New Zealand SIR-B science investigations

    NASA Technical Reports Server (NTRS)

    Collins, M. A.; Oliver, P. J.; Cochrane, G. R.; Cole, J.; Coombs, D. S.; Barnes, E. J.; Ching, N. P.; Bennets, R. L.; Stephens, P. H.; Laing, A. K.

    1984-01-01

    It is proposed that shuttle imaging radar (SIR) data be used to study unusual geological features of New Zealand. Particular attention is planned for geological faults. SIR-B imagery is to be compared with LANDSAT multispectral imagery. Three other investigations which are to use SIR data are discussed. An ocean eddy is to be studied from a correlation of SIR-B and advanced very high resolution radiometer imagery. Timber volume is to be assessed by determining the age and size of pine forests from SIR-B data. Soil moisture is to be investigated by comparing SIR-B data with simultaneous gravimetric data. Land cover in a region already subjected to intensive investigation using LANDSAT and aircraft scanner data is to be discriminated by SIR-B data.

  13. Radiotracer investigations in pilot-scale soakers.

    PubMed

    Sharma, V K; Pant, H J; Tandon, D; Garg, M O

    2016-01-01

    This paper describes a radiotracer investigation carried out to measure residence time distribution (RTD) of petroleum residues in pilot-scale soakers. The main objectives of the investigation were to evaluate the feasibility of using bromine-82 as dibromobiphenyl (DBBP) for tracing the petroleum residues (organic phase) as a radiotracer at elevated temperature and pressure, and to investigate the flow dynamics of the phase in the soaker at different operating and process conditions. The measured RTD was treated and mean residence times (MRTs) were determined. Tanks-in-series with backmixing model (TISBM) was used to simulate the measured RTD data. The results of model simulation indicated a high degree of backmixing in the soaker without baffles i.e. without sectionalizing the soaker. However, the introduction of perforated plates at various axial locations inside the soaker i.e. sectionalizing the soaker, reduces the extent of backmixing thus tending the flow towards plug flow. PMID:26426158

  14. Investigation of organic adhesives for hybrid microcircuits

    NASA Technical Reports Server (NTRS)

    Perkins, K. L.; Licari, J. J.

    1975-01-01

    The properties of organic adhesives were investigated to acquire information for a guideline document regarding the selection of adhesives for use in high reliability hybrid microcircuits. Specifically, investigations were made of (1) alternate methods for determining the outgassing of cured adhesives, (2) effects of long term aging at 150 C on the electrical properties of conductive adhesives, (3) effects of shelf life age on adhesive characteristics, (4) bond strengths of electrically conductive adhesives on thick film gold metallization, (5) a copper filled adhesive, (6) effects of products outgassed from cured adhesives on device electrical parameters, (7) metal migration from electrically conductive adhesives, and (8) ionic content of electrically insulative adhesives. The tests performed during these investigations are described, and the results obtained are discussed.

  15. Procedures for ground-water investigations

    SciTech Connect

    Not Available

    1989-09-01

    This manual was developed by the Pacific Northwest Laboratory (PNL) to document the procedures used to carry out and control the technical aspects of ground-water investigations at the PNL. Ground-water investigations are carried out to fulfill the requirements for the US Department of Energy (DOE) to meet the requirements of DOE Orders. Investigations are also performed for various clients to meet the requirements of the Resource Conservation and Recovery Act of 1976 (RCRA) and the Comprehensive Environmental Response, Compensation and Liability Act of 1980 (CERCLA). National standards including procedures published by the American Society for Testing and Materials (ASTM) and the US Geological Survey were utilized in developing the procedures contained in this manual.

  16. Laboratory Investigations of the Extreme Universe

    SciTech Connect

    Chen, Pisin

    2003-08-06

    Recent years have seen tremendous progress in our understanding of the extreme universe, which in turn points to even deeper questions to be further addressed. History has shown that the symbiosis between direct observations and laboratory investigation is instrumental in the progress of astrophysics. Current frontier astrophysical phenomena related to particle astrophysics and cosmology typically involve one or more of the following conditions: (1) extremely high energy events; (2) very high density, high temperature processes; (3) super strong field environments. Laboratory experiments using high intensity lasers and particle beams can calibrate astrophysical observation or detection processes, investigate the underlying dynamics of astrophysical phenomena, and probe into fundamental physics in extreme limits. We give examples of possible laboratory experiments that investigate into the extreme universe.

  17. Investigation of Single Stage Axial Fans

    NASA Technical Reports Server (NTRS)

    Ruden, P.

    1944-01-01

    The following investigations are connected with experiments on fans carried out by the author in the Gouttingen Aerodynamic Laboratory within the framework of the preliminary experiments for the new Gouttingen wind-tunnel project. A fan rotor was developed which had very high efficiency at the design point corresponding to moderate pressure and which, in addition, could operate at a proportionally high pressure, rise. To establish the determining operating factors the author carried out extensive theoretical investigation in Hannover. In this it was necessary, to depart from the usual assumption of vanishing radial velocities. The calculations were substantially lightened by the introduction of diagrams. The, first part of the.report describes the theoretical investigations; the second, the experiments carried out at Gouttingen.

  18. Wildlife health investigations: needs, challenges and recommendations

    PubMed Central

    2013-01-01

    In a fast changing world with growing concerns about biodiversity loss and an increasing number of animal and human diseases emerging from wildlife, the need for effective wildlife health investigations including both surveillance and research is now widely recognized. However, procedures applicable to and knowledge acquired from studies related to domestic animal and human health can be on partly extrapolated to wildlife. This article identifies requirements and challenges inherent in wildlife health investigations, reviews important definitions and novel health investigation methods, and proposes tools and strategies for effective wildlife health surveillance programs. Impediments to wildlife health investigations are largely related to zoological, behavioral and ecological characteristics of wildlife populations and to limited access to investigation materials. These concerns should not be viewed as insurmountable but it is imperative that they are considered in study design, data analysis and result interpretation. It is particularly crucial to remember that health surveillance does not begin in the laboratory but in the fields. In this context, participatory approaches and mutual respect are essential. Furthermore, interdisciplinarity and open minds are necessary because a wide range of tools and knowledge from different fields need to be integrated in wildlife health surveillance and research. The identification of factors contributing to disease emergence requires the comparison of health and ecological data over time and among geographical regions. Finally, there is a need for the development and validation of diagnostic tests for wildlife species and for data on free-ranging population densities. Training of health professionals in wildlife diseases should also be improved. Overall, the article particularly emphasizes five needs of wildlife health investigations: communication and collaboration; use of synergies and triangulation approaches; investments for the long term; systematic collection of metadata; and harmonization of definitions and methods. PMID:24188616

  19. Further investigation of the "reactor anomaly"

    NASA Astrophysics Data System (ADS)

    Garvey, G. T.; Hayes, A. C.; Jungman, Gerard; Jonkmans, G.

    2015-07-01

    The effect of a more realistic and extensive inclusion of first forbidden beta decay into the determination of the reactor neutrino flux is investigated. Forbidden decays make up approximately 30% of all fission product decays so their possible impact on the neutrino flux should not be neglected. Because of an incomplete knowledge of the requisite nuclear structure it is not possible to incorporate the forbidden decays in an exact fashion thus a variety of scenarios are investigated. It appears that including first forbidden decays measurably modifies the anti-neutrino spectrum, and the uncertainty on the neutrino flux should be expanded beyond 4%.

  20. Parasexuality in genitourinary investigations: a qualitative study

    PubMed Central

    2014-01-01

    Background Genitourinary investigations are performed on a large proportion of middle-aged and older men and the majority undergo investigations for prostate issues. The effects that genitourinary disease can have on men depend on the type of problem, investigations required and treatment including impotence, gynaecomastia and urinary incontinence that have lasting devastating physical, social and psychological effects. The aim was to explore older men’s experience and views of intimate and intrusive genitourinary investigations and specifically to develop hypotheses and theories concerning gender and sexuality issues in intimate genitourinary investigations. Methods Written informed consent was obtained for this qualitative study. Data were collected through one-off, semi-structured interviews involving 15 men in the first year following patient’s last urological procedure. Initially, multiple themes were identified and when analysed further concepts were repeatedly present. As the urological investigations were limited to men, gender and sexuality became prominent issues in the data. Results On analysis, the term parasexuality appeared to explain the dynamic of the situation. Parasexuality is a modified form of sexuality which is channelled and limited to maintain propriety. This was not expressed as sexuality in its overt, explicit sense, but instead a type of covert sexuality where professional boundaries are maintained but nonetheless undercurrents remain. This managed version of sexuality created a common currency by which interactions between staff and patients could take place safely. Feeding into parasexuality were gender role stereotypes and for some of the participants this reflected their own experience, context, historical and cultural norms. Intimate contact in the form of exposure and handling of the participants' genitalia during the investigations particularly challenged the boundaries of parasexuality. In order to remain parasexual, many of the participants suppressed their sexuality. Viewing staff as professional was an additional strategy used by participants to limit any sexuality as parasexuality. Conclusion This study has contributed towards the appeal for more studies to examine privacy perceptions of patients in genitalia-related care, however, it is by no means definitive. Parasexuality goes some way to explain the dynamics of communication between older men and health care professionals during genitourinary investigations. PMID:24606673

  1. Gravitation and celestial mechanics investigations with Galileo

    NASA Technical Reports Server (NTRS)

    Anderson, J. D.; Armstrong, J. W.; Campbell, J. K.; Estabrook, F. B.; Krisher, T. P.; Lau, E. L.

    1992-01-01

    The gravitation and celestial mechanics investigations that are to be conducted during the cruise and Orbiter phases of the Galileo Mission cover four investigation categories: (1) the gravity fields of Jupiter and its four major satellites; (2) a search for gravitational radiation; (3) mathematical modeling of general relativistic effects on Doppler ranging data; and (4) improvements of the Jupiter ephemeris via Orbiter ranging. Also noted are two secondary objectives, involving a range fix during Venus flyby and the determination of the earth's mass on the bases of the two earth gravity assists used by the mission.

  2. Investigation of disease risks in small areas.

    PubMed Central

    Elliott, P

    1995-01-01

    The investigation of disease risks in small areas is complicated by many issues including data quality, the retrospective nature of the statistical testing, the problems of boundary definitions in time and space around a putative disease cluster, and the lack of generally accepted definitions of the key terminology. Routine data systems have revolutionised the initial investigation of disease risks near sources of environmental pollution, although problems of data analysis and interpretation remain. This is especially true of unmeasured socioeconomic confounding, which could generate apparent positive results near a pollution source. PMID:8563839

  3. Investigating industrial investigation: examining the impact of a priori knowledge and tunnel vision education.

    PubMed

    Maclean, Carla L; Brimacombe, C A Elizabeth; Lindsay, D Stephen

    2013-12-01

    The current study addressed tunnel vision in industrial incident investigation by experimentally testing how a priori information and a human bias (generated via the fundamental attribution error or correspondence bias) affected participants' investigative behavior as well as the effectiveness of a debiasing intervention. Undergraduates and professional investigators engaged in a simulated industrial investigation exercise. We found that participants' judgments were biased by knowledge about the safety history of either a worker or piece of equipment and that a human bias was evident in participants' decision making. However, bias was successfully reduced with "tunnel vision education." Professional investigators demonstrated a greater sophistication in their investigative decision making compared to undergraduates. The similarities and differences between these two populations are discussed. PMID:24295062

  4. INVESTIGATING THERMODYNAMICS OF VERTICAL ATMOSPHERIC ENERGY TRANSPORT

    E-print Network

    INVESTIGATING THERMODYNAMICS OF VERTICAL ATMOSPHERIC ENERGY TRANSPORT Wei Wu and Yangang Liu National Laboratory P.O. Box, Upton, NY www.bnl.gov ABSTRACT Thermodynamics of vertical atmospheric energy. Potential thermodynamic constraint(s) for the Earth's climate system are also explored from these simple

  5. An Investigation of the SOAR Study Method

    ERIC Educational Resources Information Center

    Jairam, Dharma; Kiewra, Kenneth A.

    2009-01-01

    Students are rarely taught how to study. When study strategy instruction occurs, weak strategies are often advocated or strategies are presented in a hodgepodge leaving students without a systematic study plan. This experiment investigated a systematic study plan called SOAR that includes the components of "S"election, "O"rganization,…

  6. INVESTIGATION Population Growth Enhances the Mean Fixation

    E-print Network

    Waxman, David

    INVESTIGATION Population Growth Enhances the Mean Fixation Time of Neutral Mutations of population genetics states that a new mutation, at an unlinked neutral locus in a randomly mating diploid population, has a mean time of fixation of 4Ne generations, where Ne is the effective population size

  7. Investigating Ceiling Effects in Longitudinal Data Analysis

    ERIC Educational Resources Information Center

    Wang, Lijuan; Zhang, Zhiyong; McArdle, John J.; Salthouse, Timothy A.

    2008-01-01

    Score limitation at the top of a scale is commonly termed "ceiling effect." Ceiling effects can lead to serious artifactual parameter estimates in most data analysis. This study examines the consequences of ceiling effects in longitudinal data analysis and investigates several methods of dealing with ceiling effects through Monte Carlo simulations…

  8. Buried Alive! An Investigation of Plant Dormancy

    ERIC Educational Resources Information Center

    Allen, Ashley J.; Balschweid, Mark; Hammond, Paul; Henderson, Brian; Johnson, Peggy A.; Kite, Abigayle; Martin, Stephanie

    2004-01-01

    In this investigation, pairs of upper elementary students test germination percentage using seeds of Indian corn ("Zea mays"), scarlet runner beans ("Phaseolus coccineus"), and the prairie cup-plant ("Silphium perfoliatum") grown on rolled, damp paper towels. The pairs compare seeds that have been stratified, a simulation of overwintering and…

  9. Investigation of Inhalation Anthrax Case, United States

    PubMed Central

    Blaney, David; Shadomy, Sean; Lehman, Mark; Pesik, Nicki; Tostenson, Samantha; Delaney, Lisa; Tiller, Rebekah; DeVries, Aaron; Gomez, Thomas; Sullivan, Maureen; Blackmore, Carina; Stanek, Danielle; Lynfield, Ruth

    2014-01-01

    Inhalation anthrax occurred in a man who vacationed in 4 US states where anthrax is enzootic. Despite an extensive multi-agency investigation, the specific source was not detected, and no additional related human or animal cases were found. Although rare, inhalation anthrax can occur naturally in the United States. PMID:24447835

  10. Methods & Strategies: Developing Investigative Skills Purposefully

    ERIC Educational Resources Information Center

    Pellathy, Stephen L.; Paul, John; Cartier, Jennifer L.; Wittfeldt, Claudia

    2007-01-01

    Members of a team of educators and university students participating in the project, Pittsburgh Partnership for Energizing Science in Urban Schools, addressed the issue of helping students develop investigative skills within the context of an introductory science unit for fourth graders. The unit focuses on data-collection techniques and is a…

  11. 49 CFR 107.305 - Investigations.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 2 2014-10-01 2014-10-01 false Investigations. 107.305 Section 107.305 Transportation Other Regulations Relating to Transportation PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION HAZARDOUS MATERIALS AND OIL TRANSPORTATION HAZARDOUS MATERIALS PROGRAM PROCEDURES Enforcement §...

  12. DENDROCHRONOLOGICAL INVESTIGATIONS AT PORSUK/ULUKISLA, TURKEY

    E-print Network

    Manning, Sturt

    DENDROCHRONOLOGICAL INVESTIGATIONS AT PORSUK/ULUKISLA, TURKEY PRELIMINARY REPORT, 1987-1989 PAR August 1987; 15 August 1983; and 22 August 1989 the Aegean Dendrochronology Project visited the Bronze, at the kind invitation of its excavator, Prof. Olivier Pelon, to take samples for dendrochronological analysis

  13. Numerical Investigation of Supersonic Nozzle Flow Separation

    E-print Network

    Papamoschou, Dimitri

    Numerical Investigation of Supersonic Nozzle Flow Separation Q. Xiao* and H.M. Tsai Temasek of Mechanical and Aerospace Engineering University of California, Irvine CA 92697-3975, USA . The separated flow. The computational results are used to further examine the effect of the separated flow. Unlike the experiment

  14. Numerical Investigation of Supersonic Nozzle Flow Separation

    E-print Network

    Papamoschou, Dimitri

    Numerical Investigation of Supersonic Nozzle Flow Separation Q. Xiao and H. M. Tsai National, Irvine, Irvine, California 92697-3975 DOI: 10.2514/1.20073 Separation of supersonic flow in a planar is on the structure of the fluid and wave phenomena associated with the flow separation. Computations are conducted

  15. 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 Regulations Relating to Labor (Continued) OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR (CONTINUED) BASIC PROGRAM ELEMENTS FOR FEDERAL EMPLOYEE OCCUPATIONAL SAFETY AND HEALTH PROGRAMS AND...

  16. Investigation of Tacit Knowledge in Principal Leadership

    ERIC Educational Resources Information Center

    St. Germain, Lorraine; Quinn, David M.

    2005-01-01

    This study investigated how tacit knowledge was used by expert and novice principals during problem-solving situations. Through the use of a phenomenological, qualitative approach, novice principals were compared with expert principals as both went about their daily tasks of school leadership. Results of the study contribute to the research on…

  17. Investigating Degradation Enzymes for Pentachlorophenols (PCPs)

    E-print Network

    Collins, Gary S.

    Investigating Degradation Enzymes for Pentachlorophenols (PCPs) Emily White1, Mark Nissen2, Chul chlorophenolicum that breaks down PCP has been studied extensively but a complete picture of how the enzymes work is still lacking. This study aims to solve the crystal structure of PcpC, which is an enzyme in the pathway

  18. Investigating Pedagogical Value of Wiki Technology

    ERIC Educational Resources Information Center

    Hazari, Sunil; North, Alexa; Moreland, Deborah

    2009-01-01

    This exploratory study investigates the potential of Wiki technology as a tool for teaching and learning. Wikis are a component of Web 2.0 technology tools that provide collaborative features and active learning opportunities in a web-based environment. This research study sought to empirically determine the pedagogical value of using Wiki…

  19. Quality assurance strategies for investigating IAQ problems

    SciTech Connect

    Collett, C.W.; Ross, J.A.; Sterling, E.M. )

    1994-06-01

    Thousands of buildings have now been investigated throughout North America and western Europe. The evaluative strategies and protocols used by various investigators have been described in the scientific and protocols used by various investigators have been described in the scientific and technical literature, including those used by government agencies, private consultants, researchers, and physicians. Review of these strategies shows a consistency and commonly in approach, despite differences in terminology and organization. Most of the published protocols recognize the need to employ a multidisciplinary approach to the evaluation of indoor environmental problems, an approach that views buildings as complex, dynamic systems. The multidisciplinary approaches advocated by investigators gather information about the physical building (architectural), the mechanical systems that control indoor environmental conditions (engineering), the type and extent of occupant health and comfort concerns (medical), the objective quality of the air (industrial hygiene) and the occupants subjective perceptions of conditions in their work environment (social science). These components have generally been organized into a series of steps or phases, with each phase extending the information gathered from the preceding phase until a point when the causes of problems may be identified.

  20. Investigating the Boron Requirement of Plants.

    ERIC Educational Resources Information Center

    Bohnsack, Charles W.

    1991-01-01

    This article describes a simple and rapid method for using summer squash to investigate born deficiency in plants. Author asserts that students are likely to feel challenged by laboratory exercises and projects that focus on the role boron plays in plant growth because it is an unresolved problem in biology. (PR)

  1. URI Water Reserve Project Principle Investigators

    E-print Network

    Rhode Island, University of

    firm to handle their energy and water conservation projects, it was suggested that the projectURI Water Reserve Project Principle Investigators Vincent C. Rose #12;Introduction The purpose generator, using this process in Massachusetts, was visited to better understand the process. Principle

  2. Investigations for a Mobile Environmental Education Laboratory.

    ERIC Educational Resources Information Center

    Childress, Ronald B.

    Envirpnmental investigations in this compilation were developed in conjunction with the establishment of a mobile environmental education laboratory, a demonstration project of the Kingsport (Tennessee) City School System. The 50 activities are divided into five categories: basic resources, environmental problems, living organisms, community…

  3. NCI Outstanding Investigator Award - 2015 Recipients

    Cancer.gov

    NCI announced availability of the 2015 Outstanding Investigator Award in late 2014. Below are profiles of recipients of the 2015 Award made to date. All 2015 Awards are expected to be made by the end of the year and will be added to this web page. Congratulations

  4. INVESTIGATION A Coalescent Model for Genotype Imputation

    E-print Network

    Rosenberg, Noah

    increases with increasing divergence time between the target and reference populations. Thus, in humans, our in genome-wide association studies (GWAS) conducted in human populations, thereby increas- ing power accuracy in terms of population-genetic parameters. Our model allows us to investigate sampling designs

  5. Lessons from London Schools: Investigating the Success

    ERIC Educational Resources Information Center

    Baars, Sam; Bernardes, Eleanor; Elwick, Alex; Malortie, Abigail; McAleavy, Tony; McInerney, Laura; Menzies, Loic; Riggall, Anna

    2014-01-01

    This research seeks to investigate the claim that London schools have improved dramatically since 2000. The authors have reviewed the evidence of transformational change and explored possible reasons for the development in London's schools. The project was guided by three questions: (1) Is the success of London's schools as real as has…

  6. 10 CFR 590.109 - FE investigations.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 10 Energy 4 2013-01-01 2013-01-01 false FE investigations. 590.109 Section 590.109 Energy DEPARTMENT OF ENERGY (CONTINUED) NATURAL GAS (ECONOMIC REGULATORY ADMINISTRATION) ADMINISTRATIVE PROCEDURES WITH RESPECT TO THE IMPORT AND EXPORT OF NATURAL GAS General Provisions § 590.109 FE...

  7. 10 CFR 590.109 - FE investigations.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 10 Energy 4 2010-01-01 2010-01-01 false FE investigations. 590.109 Section 590.109 Energy DEPARTMENT OF ENERGY (CONTINUED) NATURAL GAS (ECONOMIC REGULATORY ADMINISTRATION) ADMINISTRATIVE PROCEDURES WITH RESPECT TO THE IMPORT AND EXPORT OF NATURAL GAS General Provisions § 590.109 FE...

  8. 10 CFR 590.109 - FE investigations.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 10 Energy 4 2011-01-01 2011-01-01 false FE investigations. 590.109 Section 590.109 Energy DEPARTMENT OF ENERGY (CONTINUED) NATURAL GAS (ECONOMIC REGULATORY ADMINISTRATION) ADMINISTRATIVE PROCEDURES WITH RESPECT TO THE IMPORT AND EXPORT OF NATURAL GAS General Provisions § 590.109 FE...

  9. 10 CFR 590.109 - FE investigations.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 10 Energy 4 2014-01-01 2014-01-01 false FE investigations. 590.109 Section 590.109 Energy DEPARTMENT OF ENERGY (CONTINUED) NATURAL GAS (ECONOMIC REGULATORY ADMINISTRATION) ADMINISTRATIVE PROCEDURES WITH RESPECT TO THE IMPORT AND EXPORT OF NATURAL GAS General Provisions § 590.109 FE...

  10. INVESTIGATION FOR 'SUPER-SORBENT' COMMERCIAL PROCESSING

    EPA Science Inventory

    The report discusses making improved ('super-sorbent') calcium based sorbents commercially for EPA's LIMB (Limestone Injection in Multistage Burners) process for SO2 removal from coal-fired utility boilers. Two processes for making 'super-sorbents' were investigated: (1) precalci...

  11. A Serious Game for Traffic Accident Investigators

    ERIC Educational Resources Information Center

    Binsubaih, Ahmed; Maddock, Steve; Romano, Daniela

    2006-01-01

    In Dubai, traffic accidents kill one person every 37 hours and injure one person every 3 hours. Novice traffic accident investigators in the Dubai police force are expected to "learn by doing" in this intense environment. Currently, they use no alternative to the real world in order to practice. This paper argues for the use of an alternative…

  12. Dig In! Hands-On Soil Investigations.

    ERIC Educational Resources Information Center

    National Science Teachers Association, Arlington, VA.

    This guide is geared toward K-4 science teachers, supervisors, and environmental educators. The guide seeks to promote a better understanding and appreciation of soil. Students explore the land around them as they investigate the origins of soil and how it benefits our ecosystems and environment and discover the various habitats characterized by…

  13. An Investigation on Students' Perceptions of Biodiversity

    ERIC Educational Resources Information Center

    Yorek, Nurettin; Aydin, Halil; Ugulu, Ilker; Dogan, Yunus

    2008-01-01

    In this study, pupils' constructions of some concepts related to biodiversity like classifying living things, variation in living things and ecosystem elements, and the concept of life were investigated in the light of constructivist theory of learning. For this purpose, a biological diversity conceptual understanding test formed by a series of…

  14. Advising as Servant Leadership: Investigating the Relationship

    ERIC Educational Resources Information Center

    Paul, W. Kohle; Smith, K. Courtney; Dochney, Brendan J.

    2012-01-01

    Advisors serve in many, often overlooked, roles. We investigated the supposition that McClellan (2007a) espoused between academic advising and servant leadership. Our hypotheses, that measures of servant leadership and developmental advising are correlated and that wisdom is the best predictor of developmental advising behaviors, were supported.…

  15. THE MYSTERY OF TORRALBA--THREE INVESTIGATIONS.

    ERIC Educational Resources Information Center

    BERNSTEIN, EDGAR

    ARCHEOLOGICAL DATA AND INTERPRETATIONS FROM THREE INVESTIGATIONS ARE USED TO PRESENT STUDENTS WITH THE TASK OF ANALYZING A SITE AT TORRALBA, LOCATED APPROXIMATELY 100 MILES NORTHEAST OF MADRID, SPAIN. SITE DRAWINGS, PHOTOGRAPHS, AND ACRYLIC MODELS OF ARTIFACTS ARE USED. STUDENTS DO NOT ENGAGE IN THE ACTUAL FIELD WORK BY WHICH DATA ARE ACCUMULATED.…

  16. 20 CFR 726.303 - Notification; investigation.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 20 Employees' Benefits 4 2012-04-01 2012-04-01 false Notification; investigation. 726.303 Section 726.303 Employees' Benefits OFFICE OF WORKERS' COMPENSATION PROGRAMS, DEPARTMENT OF LABOR FEDERAL COAL MINE HEALTH AND SAFETY ACT OF 1969, AS AMENDED BLACK LUNG BENEFITS; REQUIREMENTS FOR COAL MINE...

  17. 20 CFR 726.303 - Notification; investigation.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 20 Employees' Benefits 4 2014-04-01 2014-04-01 false Notification; investigation. 726.303 Section 726.303 Employees' Benefits OFFICE OF WORKERS' COMPENSATION PROGRAMS, DEPARTMENT OF LABOR FEDERAL COAL MINE HEALTH AND SAFETY ACT OF 1969, AS AMENDED BLACK LUNG BENEFITS; REQUIREMENTS FOR COAL MINE...

  18. 20 CFR 726.303 - Notification; investigation.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 20 Employees' Benefits 4 2013-04-01 2013-04-01 false Notification; investigation. 726.303 Section 726.303 Employees' Benefits OFFICE OF WORKERS' COMPENSATION PROGRAMS, DEPARTMENT OF LABOR FEDERAL COAL MINE HEALTH AND SAFETY ACT OF 1969, AS AMENDED BLACK LUNG BENEFITS; REQUIREMENTS FOR COAL MINE...

  19. Investigative and In-Depth Reporting.

    ERIC Educational Resources Information Center

    Bolch, Judith; Miller, Kay

    Using the case history approach, this book examines each step of the news gathering process and shows, through numerous examples drawn from the experiences of professional reporters, the procedures to use in tracking down and developing a story. The eight chapters discuss the following topics: background information on investigative reporting;…

  20. Open-Ended Laboratory Investigations with Drosophila.

    ERIC Educational Resources Information Center

    Mertens, Thomas R.

    1983-01-01

    Background information, laboratory procedures (including matings performed), and results are presented for an open-ended investigation using the fruitfly Drosophila melanogaster. Once data are collected, students develop hypotheses to explain results as well as devise additional experiments to test their hypotheses. Calculation of chi-square for…

  1. Research Investigation of Information Access Methods

    ERIC Educational Resources Information Center

    Heinrichs, John H.; Sharkey, Thomas W.; Lim, Jeen-Su

    2006-01-01

    This study investigates the satisfaction of library users at Wayne State University who utilize alternative information access methods. The LibQUAL+[TM] desired and perceived that satisfaction ratings are used to determine the user's "superiority gap." By focusing limited library resources to address "superiority gap" issues identified by each…

  2. Parametric investigations of a nonconventional Hall thruster

    NASA Astrophysics Data System (ADS)

    Raitses, Y.; Fisch, N. J.

    2001-05-01

    Hall thrusters might better scale to low power with nonconventional geometry. A 9 cm cylindrical, ceramic-channel, Hall thruster with a cusp-type magnetic field distribution has been investigated. It exhibits discharge characteristics similar to conventional coaxial Hall thrusters, but does not expose as much channel surface. Significantly, its operation is not accompanied by large amplitude discharge low frequency oscillations.

  3. Fibonacci and Nature. Mathematics Investigations for Schools.

    ERIC Educational Resources Information Center

    Newton, Lynn D.

    1987-01-01

    Sets forth the history of the Fibonacci Sequence and details its occurrence in nature and its potential for project work in schools. Ideas and activities include the rabbit problem, investigations of the sequence itself, its relationship to plants, music, snail shells, and the golden section. Computer generation of spirals is also discussed. (PK)

  4. 10 CFR 824.5 - Investigations.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 10 Energy 4 2010-01-01 2010-01-01 false Investigations. 824.5 Section 824.5 Energy DEPARTMENT OF ENERGY PROCEDURAL RULES FOR THE ASSESSMENT OF CIVIL PENALTIES FOR CLASSIFIED INFORMATION SECURITY... scope, nature and extent of compliance by a person with DOE security requirements specified in §...

  5. HARBOR ISLAND REMEDIAL INVESTIGATION, MARINE SEDIMENT

    EPA Science Inventory

    The data set contains marine sediment data from a remedial investigation of Harbor Island, a National Priority List (NPL) Superfund site in Washington State. Both surface and subsurface marine sediments were collected. A station data set contain sampling station location and desc...

  6. INVESTIGATION Genotype Imputation Reference Panel Selection

    E-print Network

    Rosenberg, Noah

    INVESTIGATION Genotype Imputation Reference Panel Selection Using Maximal Phylogenetic Diversity panel. The use of such an internal reference panel identifies population-specific variants and avoids population. To efficiently select an internal panel, we introduce an idea of phylogenetic diversity from

  7. 29 CFR 24.104 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... PROVISIONS OF SIX ENVIRONMENTAL STATUTES AND SECTION 211 OF THE ENERGY REORGANIZATION ACT OF 1974, AS AMENDED... Water Pollution Control Act; Toxic Substances Control Act; Solid Waste Disposal Act; Clean Air Act; and... Energy Reorganization Act. In addition to the investigative procedures set forth in §§ 24.104(a), (b),...

  8. Design and investigation of UV image detectors

    NASA Astrophysics Data System (ADS)

    Bespalov, V. A.; Glazov, V. M.; Il'ichev, E. A.; Klimov, Yu. A.; Kuklev, S. V.; Kuleshov, A. E.; Nabiev, R. M.; Petrukhin, G. N.; Potapov, B. G.; Rychkov, G. S.; Sokolov, D. S.; Fandeev, V. V.; Fetisov, E. A.; Yakushov, S. S.

    2015-04-01

    The results of investigation of optical image detectors designed for the largest problem, near-VUV, range of the spectrum are presented. The possibility of using a dual-stage image detection system to appreciably lower the sensitivity threshold and make computer data processing feasible is considered. The integration of a UV module into a wideband image detector is studied.

  9. Investigation of inhalation anthrax case, United States.

    PubMed

    Griffith, Jayne; Blaney, David; Shadomy, Sean; Lehman, Mark; Pesik, Nicki; Tostenson, Samantha; Delaney, Lisa; Tiller, Rebekah; DeVries, Aaron; Gomez, Thomas; Sullivan, Maureen; Blackmore, Carina; Stanek, Danielle; Lynfield, Ruth

    2014-02-01

    Inhalation anthrax occurred in a man who vacationed in 4 US states where anthrax is enzootic. Despite an extensive multi-agency investigation, the specific source was not detected, and no additional related human or animal cases were found. Although rare, inhalation anthrax can occur naturally in the United States. PMID:24447835

  10. Investigation of At-Risk Patent Filings

    ERIC Educational Resources Information Center

    Livne, O.

    2003-01-01

    The author presents an investigation of patent-application filings made without external financial support, or "at-risk", based on inventions disclosed to the University of California from fiscal years 1991 to 2000. The success of the at-risk patent applications filed on these invention disclosures is examined from the perspective of agreements…

  11. Investigation of the deformed fermi surfaces 

    E-print Network

    Lu, Jianxu

    2009-05-15

    function to investigate the chemical potential and minimize the original Hamiltonian of S-wave superconductor. And some computer programs used in Chapter III are attached to the appendix. Chapter IV is the conclusion. B. BCS Theory In 1957, John Bardeen...

  12. Quality Science Investigation in the Early Years.

    ERIC Educational Resources Information Center

    Sood, Krishan

    Children develop investigative skills, a spirit of inquiry, and an understanding of science within an educational context of first-hand experience and purposeful play. This article explores the issue of quality in science instruction for young children, placing it within the larger framework of quality in early childhood education. The article…

  13. Mathematically Rich, Investigative Tasks for Teaching Algebra

    ERIC Educational Resources Information Center

    Day, Lorraine

    2015-01-01

    A challenge for teachers is to incorporate the Standards for Mathematical Practice (CCSSI 2010) throughout their teaching of mathematics so that the Common Core Standards do not revert back to a purely content-driven curriculum. One way to achieve this is through the use of mathematically rich, investigative tasks. These tasks encourage students…

  14. Scientific Investigations of Elementary School Children

    ERIC Educational Resources Information Center

    Valanides, Nicos; Papageorgiou, Maria; Angeli, Charoula

    2014-01-01

    The study provides evidence concerning elementary school children's ability to conduct a scientific investigation. Two hundred and fifty sixth-grade students and 248 fourth-grade students were administered a test, and based on their performance, they were classified into high-ability and low-ability students. The sample of this study was…

  15. Lattice investigation of heavy meson interactions

    E-print Network

    Björn Wagenbach; Pedro Bicudo; Marc Wagner

    2014-11-10

    We report on a lattice investigation of heavy meson interactions and of tetraquark candidates with two very heavy quarks. These two quarks are treated in the static limit, while the other two are up, down, strange or charm quarks of finite mass. Various isospin, spin and parity quantum numbers are considered.

  16. 10 DARWIN'S HERITAGE TODAY Investigating Evolutionary

    E-print Network

    Benton, Michael

    . Charles Darwin saw the temporal and geographic linkages between modern and ancient organisms, and he10 DARWIN'S HERITAGE TODAY Investigating Evolutionary Radiations Department of Earth Sciences at the Permian-Triassic boundary in Russia. Nature, 2004, 432: 97-100. #12;12 DARWIN'S HERITAGE TODAY Abstract

  17. INVESTIGATION Estimate of the Spontaneous Mutation Rate

    E-print Network

    Keightley, Peter

    INVESTIGATION Estimate of the Spontaneous Mutation Rate in Chlamydomonas reinhardtii Rob W. Ness,1 of spontaneous mutations, including their rate, distribution across the genome, and fitness consequences, is of central importance to biology. However, the low rate of mutation has made it difficult to study

  18. INVESTIGATION Combinatorial Effects of Transposable Elements on

    E-print Network

    INVESTIGATION Combinatorial Effects of Transposable Elements on Gene Expression and Phenotypic we characterize a set of recessive alleles of the Toll pathway component tube that destabilize in gene expression. We further find that additional transposable element insertions near the tube gene

  19. Investigate the abandoned towns of Northwest BC

    E-print Network

    Northern British Columbia, University of

    GHOST TOWNS Investigate the abandoned towns of Northwest BC To register visit unbc experiential adventure is a must for the Ghost Town aficionado. Exclusive access to some of British Columbia's most restricted ghost town's will be provided. The remoteness and history of these fabled towns

  20. RSRM Nozzle Anomalous Throat Erosion Investigation Overview

    NASA Technical Reports Server (NTRS)

    Clinton, R. G., Jr.; Wendel, Gary M.

    1998-01-01

    In September, 1996, anomalous pocketing erosion was observed in the aft end of the throat ring of the nozzle of one of the reusable solid rocket motors (RSRM 56B) used on NASA's space transportation system (STS) mission 79. The RSRM throat ring is constructed of bias tape-wrapped carbon cloth/ phenolic (CCP) ablative material. A comprehensive investigation revealed necessary and sufficient conditions for occurrence of the pocketing event and provided rationale that the solid rocket motors for the subsequent mission, STS-80, were safe to fly. The nozzles of both of these motors also exhibited anomalous erosion similar to, but less extensive than that observed on STS-79. Subsequent to this flight, the investigation to identify both the specific causes and the corrective actions for elimination of the necessary and sufficient conditions for the pocketing erosion was intensified. A detailed fault tree approach was utilized to examine potential material and process contributors to the anomalous performance. The investigation involved extensive constituent and component material property testing, pedigree assessments, supplier audits, process audits, full scale processing test article fabrication and evaluation, thermal and thermostructural analyses, nondestructive evaluation, and material performance tests conducted using hot fire simulation in laboratory test beds and subscale and full scale solid rocket motor static test firings. This presentation will provide an over-view of the observed anomalous nozzle erosion and the comprehensive, fault-tree based investigation conducted to resolve this issue.

  1. INVESTIGATION Coding Gene Single Nucleotide Polymorphism

    E-print Network

    Bernatchez, Louis

    on cloning and Sanger sequencing, next-generation sequencing technologies now allow the more rapid populations, especially in the context of investigating the genetic impact of massive stocking of domestic for linkage-mapping have been associated with technological advances, namely new marker development

  2. Spill Sleuths: An Interdisciplinary Environmental Health Investigation

    ERIC Educational Resources Information Center

    Rudensey, Lyle; Whidden, Jeff

    2005-01-01

    "We are on the eve of total contamination," said an eighth grade "toxicologist" at a mock town meeting at Mount Baker Middle School in Mount Vernon, Washington. The meeting was the culmination of a month-long investigation by students to determine why some of the townspeople were getting sick. During the unit, students used skills from several…

  3. ARM Madden-Julian Oscillation Investigation Experiment

    SciTech Connect

    Long, Chuck

    2014-03-29

    Results of the ARM Madden-Julian Oscillation (MJO) Investigation Experiment (AMIE) field campaign are contributing significantly to concurrent national and international research efforts addressing questions about how the MJO initiates and changes as it passes phenomenon differs in observations versus models.

  4. Safety Concrete Principal Investigators: Hamlin Jennings

    E-print Network

    the hydration of cement-based materials. His research work with the Institute is aimed at providing concreteSafety Concrete Principal Investigators: Hamlin Jennings A final report submitted.S. Government assumes no liability for the contents or use thereof. #12;1 DEVELOPMENT OF A FRANGIBLE CONCRETE

  5. INVESTIGATION Gene Genealogies Within a Fixed Pedigree,

    E-print Network

    INVESTIGATION Gene Genealogies Within a Fixed Pedigree, and the Robustness of Kingman's Coalescent, not as a random quantity. Gene genealogical models should describe the outcome of the percolation of genetic provide a surprisingly accurate description of gene genealogies on a fixed pedigree. We study

  6. Investigating Probability with the NBA Draft Lottery.

    ERIC Educational Resources Information Center

    Quinn, Robert J.

    1997-01-01

    Investigates an interesting application of probability in the world of sports. Considers the role of permutations in the lottery system used by the National Basketball Association (NBA) in the United States to determine the order in which nonplayoff teams select players from the college ranks. Presents a lesson on this topic in which students work…

  7. Investigating Adolescent Stress and Body Image

    ERIC Educational Resources Information Center

    Murray, Kristen M.; Byrne, Don G.; Rieger, Elizabeth

    2011-01-01

    Adolescent stress is clearly implicated in the development of mental health problems. However, its role in dysfunctional body image, which rises markedly in adolescence, has not been investigated. The present study examined the link between stress and body image, as well as self-esteem and depressive symptoms, in 533 high school students in grades…

  8. Investigating Contingency Awareness Using Atari 2600 Games

    E-print Network

    Bowling, Michael

    Investigating Contingency Awareness Using Atari 2600 Games Marc G. Bellemare and Joel Veness Contingency awareness is the recognition that some aspects of a future observation are under an agent of contingency awareness in reinforce- ment learning using the platform of Atari 2600 games. We introduce

  9. LAUSD's Business Services Center. An Investigative Report.

    ERIC Educational Resources Information Center

    Armoudian, Maria

    An investigative report examines the Los Angeles Unified School District's (LAUSD's) attempt to obtain emergency funding, following the Los Angeles earthquake, for its abandoned Business Services Center (BSC). It examines the LAUSD's declaration of emergency and the pursuit of emergency funds, the district's search for replacement office space,…

  10. Resilient Women Leaders: A Qualitative Investigation

    ERIC Educational Resources Information Center

    Baldwin, Julia; Maldonado, Nancy L.; Lacey, Candace H.; Efinger, Joan

    2004-01-01

    This qualitative study investigated perceptions of resilient, transformational, successful women leaders regarding their own resiliency and leadership. The ten participants provided information during semi-structured, open-ended, audio taped interviews which were transcribed, hand coded, and then analyzed with QSR N6 software. Findings indicated…

  11. CODE OF PRACTICE ON INVESTIGATIONS INVOLVING

    E-print Network

    Judd, Martin

    history 21 4.7. Medical records and other records relating to care, education etc 22 4.8 Research of criminal or other wrongful conduct 20 4.6 Biological and medical investigations and previous medical medical/biological trials 28 13. Related approval procedures 28 SECTION C: MANAGEMENT APPROVAL

  12. Investigating the Effectiveness of Classroom Diagnostic Tools

    ERIC Educational Resources Information Center

    Schultz, Robert K.

    2012-01-01

    The primary purposes of the study are to investigate what teachers experience while using the Classroom Diagnostic Tools (CDT) and to relate those experiences to the rate of growth in students' mathematics achievement. The CDT contains three components: an online computer adaptive diagnostic test, interactive web-based student reports, and…

  13. An Empirical Investigation into Programming Language Syntax

    ERIC Educational Resources Information Center

    Stefik, Andreas; Siebert, Susanna

    2013-01-01

    Recent studies in the literature have shown that syntax remains a significant barrier to novice computer science students in the field. While this syntax barrier is known to exist, whether and how it varies across programming languages has not been carefully investigated. For this article, we conducted four empirical studies on programming…

  14. Linguistic Investigations into Ellipsis in Classical Sanskrit

    NASA Astrophysics Data System (ADS)

    Gillon, Brendan S.

    Ellipsis is a common phenomenon of Classical Sanskrit prose. No inventory of the forms of ellipsis in Classical Sanskrit has been made. This paper presents an inventory, based both on a systematic investigation of one text and on examples based on sundry reading.

  15. New Book Helps Students Investigate Energy

    ERIC Educational Resources Information Center

    Curriculum Review, 2009

    2009-01-01

    Energy is a valuable resource that comes in many different forms. In "Energy: 25 Projects Investigate Why We Need Power and How We Get It" kids ages 9-12 learn about the history and science of the world's sources of energy, from nonrenewable fossil fuels such as coal, oil, and natural gas to renewable energy sources such as solar and wind power.…

  16. 29 CFR 24.104 - Investigation.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...in accordance with the Privacy Act of 1974, 5 U.S.C. 552a, et...in accordance with the Privacy Act of 1974, 5 U.S.C. 552a, et...applicable to investigations under the Safe Drinking Water Act; Federal Water Pollution...

  17. 29 CFR 24.104 - Investigation.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...in accordance with the Privacy Act of 1974, 5 U.S.C. 552a, et...in accordance with the Privacy Act of 1974, 5 U.S.C. 552a, et...applicable to investigations under the Safe Drinking Water Act; Federal Water Pollution...

  18. 29 CFR 24.104 - Investigation.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...in accordance with the Privacy Act of 1974, 5 U.S.C. 552a, et...in accordance with the Privacy Act of 1974, 5 U.S.C. 552a, et...applicable to investigations under the Safe Drinking Water Act; Federal Water Pollution...

  19. 29 CFR 24.104 - Investigation.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...in accordance with the Privacy Act of 1974, 5 U.S.C. 552a, et...in accordance with the Privacy Act of 1974, 5 U.S.C. 552a, et...applicable to investigations under the Safe Drinking Water Act; Federal Water Pollution...

  20. Investigating University Students' Beliefs about Language Learning

    ERIC Educational Resources Information Center

    Mohebi, Sanaz Ghobadi; Khodadady, Ebrahim

    2011-01-01

    The aim of the study is to investigate beliefs students usually held about language learning, based on the Beliefs About Language Learning Inventory (BALLI) questionnaire (Horwitz, 1988). For this purpose, 423 University learners of English in Iran were selected. Running descriptive statistics and the scree plot test, five factors were extracted:…