WorldWideScience

Sample records for current meter records

  1. Solid state recording current meter conversion

    Science.gov (United States)

    Cheng, Ralph T.; Wang, Lichen

    1985-01-01

    The authors describe the conversion of an Endeco-174 current meter to a solid-state recording current meter. A removable solid-state module was designed to fit in the space originally occupied by an 8-track tape cartridge. The module contains a CPU and 128 kilobytes of nonvolatile CMOS memory. The solid-state module communicates with any terminal or computer using an RS-232C interface at 4800 baud rate. A primary consideration for conversion was to keep modifications of the current meter to a minimum. The communication protocol was designed to emulate the Endeco tape translation unit, thus the need for a translation unit was eliminated and the original data reduction programs can be used without any modification. After conversion, the data recording section of the current meter contains no moving parts; the storage capacity of the module is equivalent to that of the original tape cartridge.

  2. Total kinetic energy in four global eddying ocean circulation models and over 5000 current meter records

    KAUST Repository

    Scott, Robert B.

    2010-01-01

    We compare the total kinetic energy (TKE) in four global eddying ocean circulation simulations with a global dataset of over 5000, quality controlled, moored current meter records. At individual mooring sites, there was considerable scatter between models and observations that was greater than estimated statistical uncertainty. Averaging over all current meter records in various depth ranges, all four models had mean TKE within a factor of two of observations above 3500. m, and within a factor of three below 3500. m. With the exception of observations between 20 and 100. m, the models tended to straddle the observations. However, individual models had clear biases. The free running (no data assimilation) model biases were largest below 2000. m. Idealized simulations revealed that the parameterized bottom boundary layer tidal currents were not likely the source of the problem, but that reducing quadratic bottom drag coefficient may improve the fit with deep observations. Data assimilation clearly improved the model-observation comparison, especially below 2000. m, despite assimilated data existing mostly above this depth and only south of 47°N. Different diagnostics revealed different aspects of the comparison, though in general the models appeared to be in an eddying-regime with TKE that compared reasonably well with observations. © 2010 Elsevier Ltd.

  3. CRED Recording Current Meter (RCM); AMSM, TUT; Long: -170.75830, Lat: -14.37498 (WGS84); Sensor Depth: 22.00m; Data Range: 20020303-20040224.

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Data from Coral Reef Ecosystem Division (CRED), NOAA Pacific Islands Fisheries Science Center (PIFSC) Recording Current Meters (RCM) provide a time series of water...

  4. CRED Recording Current Meter (RCM); PRIA, KIN; Long: -162.35925, Lat: 06.38263 (WGS84); Sensor Depth: 7.60m; Data Range: 20020318-20040402.

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Data from Coral Reef Ecosystem Division (CRED), NOAA Pacific Islands Fisheries Science Center (PIFSC) Recording Current Meters (RCM) provide a time series of water...

  5. CRED Recording Current Meter (RCM); AMSM, ROS; Long: -168.15482, Lat: -14.53518 (WGS84); Sensor Depth: 3.40m; Data Range: 20020223-20040209.

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Data from Coral Reef Ecosystem Division (CRED), NOAA Pacific Islands Fisheries Science Center (PIFSC) Recording Current Meters (RCM) provide a time series of water...

  6. The Savonius Water Current Meter

    Science.gov (United States)

    1960-11-03

    the author visited the David Taylor Model Basin for the purpose of calibrating five (5) Savonius water current ,meter rotors in the range of .1 to 1...Iastitution of Oceanography. Figure 1 is a block diagram of the water current meter and its associated equipment. The details of the Savonius rotor are...an amplifier. The Savonius rotor functions as a salt water switch which varies the r-. coupling of the transformer thus it awplitude modulates the 100

  7. Squid based beam current meter

    Energy Technology Data Exchange (ETDEWEB)

    Kuchnir, M.

    1983-11-25

    A SQUID based beam current meter has the capability of measuring the current of a beam with as little as 30 x 155 antiprotons (with a signal to noise ratio of 2). If low noise dc current is used to cancel most of the beam or an up-down counter is used to count auto-resets this sensitivity will be available at any time in the acumulation process. This current meter will therefore be a unique diagnostic tool for optimizing the performance of several Tev I components. Besides requiring liquid helium it seems that its only drawback is not to follow with the above sensitivity a sudden beam change larger than 16 ..mu..A, something that could be done using a second one in a less sensitive configuration.

  8. Metering error quantification under voltage and current waveform distortion

    Science.gov (United States)

    Wang, Tao; Wang, Jia; Xie, Zhi; Zhang, Ran

    2017-09-01

    With integration of more and more renewable energies and distortion loads into power grid, the voltage and current waveform distortion results in metering error in the smart meters. Because of the negative effects on the metering accuracy and fairness, it is an important subject to study energy metering combined error. In this paper, after the comparing between metering theoretical value and real recorded value under different meter modes for linear and nonlinear loads, a quantification method of metering mode error is proposed under waveform distortion. Based on the metering and time-division multiplier principles, a quantification method of metering accuracy error is proposed also. Analyzing the mode error and accuracy error, a comprehensive error analysis method is presented which is suitable for new energy and nonlinear loads. The proposed method has been proved by simulation.

  9. Moored current meter and wind recorder measurement near Point Conception, California: The 1983 OPUS Observations, from 01 April 1983 to 29 July 1983 (NODC Accession 8600041)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The OPUS (Organization of Persistent Upwelling Structures) program deployed two current meter (VMCM) moorings near Point Conception, California, during April - July...

  10. Transient eddy current flow metering

    CERN Document Server

    Forbriger, Jan

    2015-01-01

    Measuring local velocities or entire flow rates in liquid metals or semiconductor melts is a notorious problem in many industrial applications, including metal casting and silicon crystal growth. We present a new variant of an old technique which relies on the continuous tracking of a flow-advected transient eddy current that is induced by a pulsed external magnetic field. This calibration-free method is validated by applying it to the velocity of a spinning disk made of aluminum. First tests at a rig with a flow of liquid GaInSn are also presented.

  11. Transient eddy current flow metering

    Science.gov (United States)

    Forbriger, J.; Stefani, F.

    2015-10-01

    Measuring local velocities or entire flow rates in liquid metals or semiconductor melts is a notorious problem in many industrial applications, including metal casting and silicon crystal growth. We present a new variant of an old technique which relies on the continuous tracking of a flow-advected transient eddy current that is induced by a pulsed external magnetic field. This calibration-free method is validated by applying it to the velocity of a spinning disk made of aluminum. First tests at a rig with a flow of liquid GaInSn are also presented.

  12. Currents, temperature, and salinity data recorded continuously from May 12, 2010 to December 16, 2010 from the surface to 1000 meters at a coastal location near the 1600 meters isobath off SW Oahu, Hawaii (NODC Accession 0072305)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The dataset contains ADCP Workhorse Long Ranger current records from 50 to 950m depth and Seabird CTD at 20, 80, 130, 230, 500, 850, and 1000m, recorded continuously...

  13. A microcomputer based system for current-meter data acquisition

    Science.gov (United States)

    Cheng, R.T.; Gartner, J.W.

    1979-01-01

    The U.S. Geological Survey is conducting current measurements as part of an interdisciplinary study of the San Francisco Bay estuarine system. The current meters used in the study record current speed, direction, temperature, and conductivity in digital codes on magnetic tape cartridges. Upon recovery of the current meters, the data tapes are translated by a tape reader into computer codes for further analyses. Quite often the importance of the data processing phase of a current-measurement program is underestimated and downplayed. In this paper a data-processing system which performs the complete data processing and analyses is described. The system, which is configured around an LSI-11 microcomputer, has been assembled to provide the capabilities of data translation, reduction, and tabulation and graphical display immediately following recovery of current meters. The flexibility inherent in a microcomputer has made it available to perform many other research functions which would normally be done on an institutional computer.

  14. Performance of a Tilt Current Meter in the Surf Zone

    DEFF Research Database (Denmark)

    Hansen, Asger Bendix; Carstensen, Stefan; Christensen, Drude Fritzbøger

    2017-01-01

    Tilt Current Meters (TCM’s) are relatively simple and inexpensive instruments for measuring currents in rivers and inthe sea. Their low cost and easy deployment means that a relatively large number of TCM’s can be deployed comparedto more conventional current meters such as Acoustic Doppler...

  15. LLNL current meter array--concept and system description

    Energy Technology Data Exchange (ETDEWEB)

    Mantrom, D.D. [Lawrence Livermore National Lab., CA (United States)

    1994-11-15

    A measurement capability using a horizontal array of 10 S4 current meters mounted on a stiff floating structure with 35 m aperture has been developed to support interpretation of radar imaging of surface effects associated with internal waves. This system has been fielded three times and most recently, has collected data alongside the sea-surface footprint of a land-fixed radar imaging ship-generated internal waves. The underlying need for this measurement capability is described. The specifications resulting from this need are presented and the engineering design and deployment procedures of the platform and systems that resulted are described The current meter data are multiplexed along with meteorological and system status data on board the floating platform and are telemetered to a shore station and on to a data acquisition system. The raw data are recorded, and are then processed to form space-time images of current and strain rate (a spatial derivative of the current field). Examples of raw and processed data associated with ship-generated internal waves are presented.

  16. Real time Aanderaa current meter data collection system

    Digital Repository Service at National Institute of Oceanography (India)

    AshokKumar, K.; Diwan, S.G.

    in laboratory. In this paper a method is described to read the real time current meter data and display/print/store on cartridge. For this, binary coded electrical signal available at the top end plate of the current meter is connectEd. by underwater cable...

  17. A Compilation of Moored Current Meter and Wind Recorder Data. Volume 38. Long-Term Upper Ocean Study (LOTUS) (Moorings 787, 788, 789, 790, 792), April 1983-May 1984.

    Science.gov (United States)

    1985-12-01

    VMCM) (Figure 4). They differ mainly in their flow-sensing elements: the VACM uses a Savonius rotor and a vane to give speed and direction which are...83-32. Fofonoff, N. P., and Y. Ercan, 1967. Response characteristics of a Savonius rotor current meter. Woods Hole Oceano. Inst. Tech. Rept. 67-33

  18. A Compilation of Moored Current Meter and Wind Recorder Data. Volume 35. Long-Term Upper Ocean Study (LOTUS) (Moorings 764, 765, 766, 767, 770), May 1982-April 1983.

    Science.gov (United States)

    1984-08-01

    in their flow-sensing elements: the VACM uses a Savonius rotor and a vane to give speed and direction which are resol’ed against an internal compass...characteristics of a Savonius rotor current meter. Woods Hole Oceano. Inst. Tech. Rept. 67-33. Halpern, D., R. A. Weller, M. G. Briscoe, R. E. Davis, and J. R

  19. Current meter data from moored current meter casts in the Northeast Pacific (limit - 180) from 12 June 1992 - 20 June 1994 (NODC Accession 9700237)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Northeast Pacific (limit - 180) from June 12, 1992 to June 20, 1994. Data were submitted by...

  20. Current meter and temperature profile data from moored current meter casts in the TOGA area - Atlantic Ocean from 10 September 1970 - 27 October 1980 (NODC Accession 8600320)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter and temperature profile data were collected using moored current meter - PCM casts in the TOGA area - Atlantic Ocean from September 10, 1970 to October...

  1. Current meter data from moored current meter casts in the Coastal Waters of California from 12 April 1981 - 01 April 1983 (NODC Accession 8400159)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Coastal Waters of California from April 12, 1981 to April 1, 1983. Data were submitted by...

  2. Performance of Virtual Current Meters in Hydroelectric Turbine Intakes

    Energy Technology Data Exchange (ETDEWEB)

    Harding, Samuel F. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Hydrology Group; Romero-Gomez, Pedro D. J. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Hydrology Group; Richmond, Marshall C. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Hydrology Group

    2016-04-30

    Standards provide recommendations for the best practices in the installation of current meters for measuring fluid flow in closed conduits. These include PTC-18 and IEC-41 . Both of these standards refer to the requirements of the ISO Standard 3354 for cases where the velocity distribution is assumed to be regular and the flow steady. Due to the nature of the short converging intakes of Kaplan hydroturbines, these assumptions may be invalid if current meters are intended to be used to characterize turbine flows. In this study, we examine a combination of measurement guidelines from both ISO standards by means of virtual current meters (VCM) set up over a simulated hydroturbine flow field. To this purpose, a computational fluid dynamics (CFD) model was developed to model the velocity field of a short converging intake of the Ice Harbor Dam on the Snake River, in the State of Washington. The detailed geometry and resulting wake of the submersible traveling screen (STS) at the first gate slot was of particular interest in the development of the CFD model using a detached eddy simulation (DES) turbulence solution. An array of virtual point velocity measurements were extracted from the resulting velocity field to simulate VCM at two virtual measurement (VM) locations at different distances downstream of the STS. The discharge through each bay was calculated from the VM using the graphical integration solution to the velocity-area method. This method of representing practical velocimetry techniques in a numerical flow field has been successfully used in a range of marine and conventional hydropower applications. A sensitivity analysis was performed to observe the effect of the VCM array resolution on the discharge error. The downstream VM section required 11–33% less VCM in the array than the upstream VM location to achieve a given discharge error. In general, more instruments were required to quantify the discharge at high levels of accuracy when the STS was

  3. Measurements of current speed using an Aanderaa RCM4 current meter in the presence of surface waves

    Science.gov (United States)

    Sherwin, T. J.

    1988-02-01

    It is shown that the Aanderaa RCM4 with Savonius rotor integrates motions that have a period significantly smaller than the recording interval, thus causing a quantifiable amplification of the observed mean speed. The minimum speed that can be recorded is 2ν/;π, where ν is the amplitude of the speed of the oscillating motion. In general, the amplification factor decreases as the ratio of mean speed over ν increases. The theory appears to explain the difference in observations made by an Aanderaa RCM4 and a neighbouring EG&G VMCM when particle velocities due to swell are included. It is recommended that vector averaging current meters should be used for current measurement in the upper 50-100 m of shelf sea regions that experience small tidal currents and a large oceanic swell.

  4. Navigation Hydraulics Research Program: Evaluation of Nanjing Hydraulic Research Institute Physical Model Current Meter.

    Science.gov (United States)

    1990-07-01

    readout circuit CURRENT VELOCITY / DIRECTION SENSOR A mini-servomotor and a piece of fibre optic rod are installed at the base. The rod is turned by...34Description. of The Fibre - Optic Type Miniature Propetler Velocity Meter" for detal Is) THE OPERATION OF THE COMBINED CURRENT VELOCITY ’ DIRECTION METER 1. Plug...of The Fibre - Optic Type Miniature propeller Velocity Meter" for details. Front Panel: Ma /jj (tPj ) Current Direction Readout (Degree) Sensitivity

  5. Current meter and other data from current meter in the Beaufort Inlet, NC from 01 February 1976 - 31 May 1976 (NODC Accession 8400038)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — No digital representation of these data are available from NODC at this time. Direction and other data collected from current meter between February 1 to May 31,...

  6. NODC Standard Format Current Meter (Components) (F015) Data (1962-1992) (NCEI Accession 0066358)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains time series measurements of ocean currents. These data are obtained from current meter moorings and represent the Eulerian method of current...

  7. Testing of 3-meter Prototype Fault Current Limiting Cables

    Energy Technology Data Exchange (ETDEWEB)

    Gouge, Michael J [ORNL; Duckworth, Robert C [ORNL; Demko, Jonathan A [ORNL; Rey, Christopher M [ORNL; Thompson, James R [ORNL; Lindsay, David T [ORNL; Tolbert, Jerry Carlton [ORNL; Willen, Dag [Ultera; Lentge, Heidi [Ultera; Thidemann, Carsten [Ultera; Carter, Bill [AMSC

    2009-01-01

    Two 3-m long, single-phase cables have been fabricated by Ultera from second generation (2G) superconductor supplied by American Superconductor. The first cable was made with two layers of 2G tape conductor and had a critical current of 5,750 A while the second cable had four layers and a critical current of 8,500 A. AC loss was measured for both cables at ac currents of up to 4 kArms. Ultera performed initial fault current studies of both cables in Denmark with limited currents in the range from 9.1 to 44 kA. Results from these tests will provide a basis for a 25-m long, three-phase, prototype cable to be tested at ORNL early next year and a 300-m long, fault current limiting, superconducting cable to be installed in a ConEd substation in New York City.

  8. Current meter and other data collected using current meter in the NW Atlantic (limit-40 W) from ENDEAVOR and other platforms from 16 September 1980 to 12 May 1983 (NODC Accession 8600198)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter and other data were collected using current meter (PCM) casts from G. B. KELEZ, ENDEAVOR, and CAPE HATTERAS in the Northwest Atlantic Ocean. Data were...

  9. Current meter data from moored current meter casts in the South Pacific Ocean as part of the Equatorial Pacific Ocean Climate Studies (EPOCS) project from 21 November 1981 - 20 November 1983 (NODC Accession 8500258)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the South Pacific Ocean from November 21, 1981 to November 20, 1983. Data were submitted by...

  10. Current meter data from moored current meter casts in the Pacific Ocean as part of the Equatorial Pacific Ocean Climate Studies (EPOCS) project from 28 May 1986 to 11 May 1987 (NODC Accession 8900168)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Pacific Ocean from 28 May 1986 to 01 May 1983. Data were submitted by Pacific Marine...

  11. Current meter data from moored current meter casts in the Pacific Ocean as part of the Equatorial Pacific Ocean Climate Studies (EPOCS) project from 20 January 1979 - 01 April 1984 (NODC Accession 8700077)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Pacific Ocean from January 20, 1979 to April 1, 1984. Data were submitted by Pacific Marine...

  12. Current meter data from moored current meter casts in the TOGA Area - Pacific (30 N to 30 S) as part of the Equatorial Pacific Ocean Climate Studies (EPOCS) project from 16 April 1984 - 01 October 1985 (NODC Accession 8700147)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the TOGA Area - Pacific (30 N to 30 S) from April 16, 1984 to October 1, 1985. Data were...

  13. Current meter data from moored current meter casts in the SW Pacific (limit-147 E to 140 W) as part of the Equatorial Pacific Ocean Climate Studies (EPOCS) project from 29 September 1985 to 01 April 1986 (NODC Accession 8800136)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the SW Pacific (limit-147 E to 140 W) from September 29, 1985 to June 1, 1986. Data were...

  14. Current meter data from moored current meter casts in the TOGA Area - Pacific (30 N to 30 S) as part of the Equatorial Pacific Ocean Climate Studies (EPOCS) project from 01 May 1987 to 05 May 1987 (NODC Accession 9000211)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the TOGA Area - Pacific (30 N to 30 S) from 01 May 1987 to 06 August 1988. Data were submitted...

  15. Current meter and temperature profile data from current meter and buoy casts in the TOGA area of Pacific Ocean from 27 April 1993 to 09 June 1994 (NODC Accession 9700042)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter and temperature profile data were collected using current meter and buoy casts in the TOGA area of Pacific Ocean from 27 April 1993 to 09 June 1994....

  16. Current meter and other data from current meter casts from NOAA Ship RESEARCHER in the North and South Pacific Ocean from 1984-06-28 to 1984-07-01 (NCEI Accession 8500226)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter and other data were collected using current meter casts from NOAA Ship RESEARCHER in the North/South Pacific Ocean from June 28, 1984 to July 1, 1984....

  17. Current meter data from moored current meter casts in the Pacific Ocean as part of the Equatorial Pacific Ocean Climate Studies (EPOCS) project from 20 January 1979 to 26 April 1984 (NODC Accession 8500007)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Pacific Ocean from January 20, 1979 to April 26, 1984. Data were submitted by Pacific...

  18. Current meter data from moored current meter casts in the North Atlantic Ocean as part of the High Energy Benthic Boundary Exp. (HEBBLE) project from 19 March 1983 - 01 August 1984 (NODC Accession 8900107)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the North Atlantic Ocean from March 19, 1983 to August 1, 1984. Data were submitted by Woods...

  19. Current meter data from moored current meter casts in the Coastal Waters of Washington/Oregon as part of the Land-Margin Ecosystem Research (LEML) project, 06 May 1997 - 19 October 1997 (NODC Accession 9800193)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Coastal Waters of Washington/Oregon from May 6, 1997 to October 19, 1997. Data were...

  20. Current meter data from moored current meter casts in the Puget Sound as part of the Mesa Puget Sound/PSERP project, 21 March 1979 - 02 November 1979 (NODC Accession 8000032)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Puget Sound from March 21, 1979 to November 2, 1979. Data were submitted by Pacific Marine...

  1. Current meter data from moored current meter casts in the Puget Sound as part of the Mesa Puget Sound/PSERP project, 25 February 1976 - 01 September 1977 (NODC Accession 7800051)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Puget Sound from February 25, 1976 to September 1, 1977. Data were submitted by Pacific...

  2. Current meter data from moored current meter casts in the Puget Sound as part of the Mesa Puget Sound/PSERP project, 17 June 1977 - 01 August 1977 (NODC Accession 7800337)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Puget Sound from June 17, 1977 to August 1, 1977. Data were submitted by University of the...

  3. Current meter data from moored current meter casts in the Puget Sound as part of the Mesa Puget Sound/PSERP project, 19 December 1977 - 29 October 1978 (NODC Accession 7900097)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Puget Sound from December 19, 1977 to October 29, 1978. Data were submitted by Pacific...

  4. Current meter data from moored current meter casts in the Puget Sound as part of the Mesa Puget Sound/PSERP project, 23 February 1977 - 11 December 1977 (NODC Accession 7900307)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Puget Sound from February 23, 1977 to December 11, 1977. Data were submitted by Pacific...

  5. Current meter data from moored current meter casts in the Columbia River estuary - Washington/Oregon as part of the Low Level Waste Ocean Disposal project from 13 August 1979 - 27 September 1984 (NODC Accession 9500016)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Columbia River estuary - Washington/Oregon from August 13, 1979 to September 27, 1984. Data...

  6. Current meter data from moored current meter casts in the Pacific Ocean as part of the Equatorial Pacific Ocean Climate Studies (EPOCS) project from 30 April 1990 - 15 May 1991 (NODC Accession 9400005)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Pacific Ocean from April 30, 1990 to May 15, 1991. Data were submitted by Pacific Marine...

  7. Current meter, phytoplankton, and wind data from moored current meter casts and other instruments in the North Pacific Ocean as part of the Deep Ocean Mining and Environmental Study (DOMES) project, 29 August 1975 - 24 February 1977 (NODC Accession 7700458)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter, phytoplankton, and wind data were collected using moored current meter casts and other instruments in the Gulf of Mexico from August 29, 1975 to...

  8. Current meter data from moored current meter casts in the Puget Sound as part of the Mesa Puget Sound/PSERP project, 05 November 1976 - 01 February 1977 (NODC Accession 7700607)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Puget Sound from November 5, 1976 to February 1, 1977. Data were submitted by Pacific...

  9. Current meter data from moored current meter casts in the Puget Sound as part of the Mesa Puget Sound/PSERP project, 13 February 1976 - 01 May 1976 (NODC Accession 7601638)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Puget Sound from February 13, 1976 to May 1, 1976. Data were submitted by Pacific Marine...

  10. Current meter data from moored current meter casts in the Puget Sound as part of the Mesa Puget Sound/PSERP project, 14 December 1977 - 19 April 1978 (NODC Accession 8000053)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Puget Sound from December 14, 1977 to April 19, 1978. Data were submitted by Pacific Marine...

  11. Current meter data from moored current meter casts in the Northwest Atlantic Ocean (limit-40 W) as part of the Outer Continental Shelf - Georges Bank (OCS -Georges Bank) project from 27 October 1980 - 01 November 1982 (NODC Accession 8600087)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Northwest Atlantic Ocean (limit-40 W) from November 27, 1980 to November 1, 1982. Data were...

  12. Current meter data from moored current meter casts in the North Atlantic Ocean as part of the Outer Continental Shelf - Georges Bank (OCS -Georges Bank) project from 02 November 1977 - 14 September 1978 (NODC Accession 7900289)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the North Atlantic Ocean from November 2, 1977 to September 14, 1978. Data were submitted by...

  13. Current meter data from moored current meter casts in the North Atlantic Ocean as part of the Outer Continental Shelf - Georges Bank (OCS -Georges Bank) project from 08 September 1978 - 01 October 1979 (NODC Accession 8100506)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the North Atlantic Ocean from September 8, 1978 to October 1, 1979. Data were submitted by...

  14. Current meter data from moored current meter casts and other instruments in the Northwest and Southwest Pacific Ocean from 01 October 1992 to 15 March 1993 (NODC Accession 9400088)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts and other instruments in the Northwest and Southwest Pacific Ocean from October 1, 1992 to March...

  15. Current meter data from moored current meter casts in the Northwest Atlantic Ocean (limit -40 W) as part of the Ocean Dumping project, 24 May 1990 - 17 June 1991 (NODC Accession 9300112)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Northwest Atlantic Ocean (limit -40 W) from May 24, 1990 to June 17, 1991. Data were...

  16. Current meter data from moored current meter casts in the TOGA area - Pacific (30 N to 30 S) as part of the Ocean Thermal Energy Conversion (OTEC) project from 27 December 1980 - 26 June 1986 (NODC Accession 9400011)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the TOGA Area - Pacific (30 N to 30 S) from December 27, 1980 to June 26, 1986. Data were...

  17. Current meter data from moored current meter casts in the Gulf of Mexico as part of the Ocean Thermal Energy Conversion (OTEC) project from 18 October 1977-10-18 to 1979-07-01 (NCEI Accession 8000284)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Gulf of Mexico from October 18, 1977 to June 1, 1979. Data were submitted by Atlantic...

  18. Current meter data from moored current meter casts in the Northeast Pacific Ocean as part of the Flow Over Abrupt Topography project from 06 January 1990 - 03 December 1991 (NODC Accession 9500077)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Northeast Pacific Ocean from January 6, 1990 to December 3, 1991. Data were submitted by...

  19. Current meter data from moored current meter casts in the Puget Sound as part of the Mesa Puget Sound/PSERP project, 15 April 1976 - 01 June 1976 (NODC Accession 7601843)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Puget Sound from April 15, 1976 to June 1, 1976. Data were submitted by Pacific Marine...

  20. Current meter data from moored current meter casts in the Coastal Waters of SE Alaska/Brit.Colum. as part of the Long-Range Effects Program Puget Sound project from 15 March 1983 - 01 November 1983 (NODC Accession 8600321)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Coastal Waters of SE Alaska/Brit.Colum. from March 15, 1983 to November 1, 1983. Data were...

  1. Current meter data from moored current meter casts in the Coastal Waters of Hawaii as part of the Ocean Thermal Energy Conversion (OTEC) project from 23 September 1980 - 01 December 1980 (NODC Accession 8100469)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Coastal Waters of Hawaii from September 23, 1980 to December 1, 1980. Data were submitted...

  2. Current meter data from moored current meter casts in the North Atlantic Ocean as part of the Outer Continental Shelf - South Atlantic (OCS-South Atlantic) project from 01 August 1978 - 20 March 1979 (NODC Accession 7900312)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the North Atlantic Ocean from August 1, 1978 to March 20, 1979. Data were submitted by Science...

  3. Current meter data from moored current meter casts in the North American Coastline-South as part of the Florida Atlantic Coastal Transport Study (FACTS) project 07 March 1984 - 01 September 1985 (NODC Accession 8600136)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the North American Coastline-South from March 7, 1984 to September 1, 1985. Data were submitted...

  4. Current meter data from moored current meter casts in the Northeast Pacific Ocean as part of the Ocean Prediction Through Observation Modeling and Analysis (OPTOMA) project, 26 September 1984 - 16 July 1985 (NODC Accession 9600075)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Northeast Pacific Ocean from September 26, 1984 to July 16, 1985. Data were submitted by...

  5. Current meter data from moored current meter casts in the Coastal Waters of S. Alaska as part of the Fisheries-Oceanography Cooperative Investigations (FOCI) project from 21 August 1984 - 01 July 1985 (NCEI Accession 8700053)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Coastal Waters of S. Alaska from August 21, 1984 to July 1, 1985. Data were submitted by...

  6. Current meter data from moored current meter casts in the Puget Sound as part of the Mesa Puget Sound/PSERP project, 25 February 1976 - 01 December 1976 (NODC Accession 7800052)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Puget Sound from February 25, 1976 to December 1, 1976. Data were submitted by Pacific...

  7. Current meter data from moored current meter casts in the North Atlantic Ocean as part of the Outer Continental Shelf - Georges Bank (OCS -Georges Bank) project from 18 June 1978 - 28 August 1978 (NODC Accession 7900256)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the North Atlantic Ocean from June 18, 1978 to August 28, 1978. Data were submitted by...

  8. Current meter data from moored current meter casts in the North Atlantic Ocean as part of the Outer Continental Shelf - Georges Bank (OCS -Georges Bank) project from 22 September 1977 - 10 November 1978 (NODC Accession 7900325)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the North Atlantic Ocean from September 22, 1977 to November 10, 1978. Data were submitted by...

  9. Current meter data from moored current meter casts in the North Atlantic Ocean as part of the Outer Continental Shelf - Georges Bank (OCS -Georges Bank) project from 12 May 1977 - 28 August 1979 (NODC Accession 7900300)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the North Atlantic Ocean from May 12, 1977 to August 28, 1979. Data were submitted by Edgerton,...

  10. Current meter data from moored current meter casts in the Northwest Atlantic Ocean (limit-40 W) as part of the Outer Continental Shelf - Georges Bank (OCS -Georges Bank) project from 25 October 1980 - 01 November 1982 (NODC Accession 8600046)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Northwest Atlantic Ocean (limit-40 W) from October 25, 1980 to November 1, 1982. Data were...

  11. Current meter data from moored current meter casts in the Caribbean Sea as part of the Ocean Thermal Energy Conversion (OTEC) project from 15 February 1979 - 01 February 1980 (NODC Accession 8100608)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Caribbean Sea from February 15, 1979 to February 1, 1980. Data were submitted by University...

  12. Current meter data from moored current meter casts in the Caribbean Sea as part of the Ocean Thermal Energy Conversion (OTEC) project from 27 September 1979 - 01 December 1979 (NODC Accession 8100607)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Caribbean Sea from September 27, 1979 to December 1, 1979. Data were submitted by...

  13. Current meter components, physical, and other data from current meters and CTD casts from NOAA Ship RONALD H. BROWN and other platforms as part of the VENTS program from 14 June 1996 to 05 October 1997 (NODC Accession 9800031)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter components and physical data were collected from current meters and CTD casts from NOAA Ship RONALD H. BROWN and other platforms from 14 June 1996 to...

  14. Current meter and pressure gauge data from moored current meter casts and other instruments in the Gulf of Alaska as part of the Fisheries-Oceanography Cooperative Investigations (FOCI) project, 26 April 1989 - 26 September 1989 (NODC Accession 9100068)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter and pressure gauge data were collected using moored current meter casts and other instruments in the Gulf of Alaska from April 22, 1989 to September...

  15. Current meter data from moored current meter casts in the Puget Sound as part of the Long-Range Effects Program Puget Sound project from 29 November 1983 - 01 August 1984 (NODC Accession 8800119)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Puget Sound from November 29, 1983 to August 1, 1984. Data were submitted by Pacific Marine...

  16. Current meter data from moored current meter casts in the Puget Sound as part of the Mesa Puget Sound/PSERP project, 16 September 1975 - 01 April 1976 (NODC Accession 7601229)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the Puget Sound from September 16, 1975 to April 1, 1976. Data were submitted by Pacific Marine...

  17. Mobile Application of Water Meter Recorder Based on Short Message Service Transmissions Using Windows Mobile Platform

    Directory of Open Access Journals (Sweden)

    I Dewa Nyoman Anom Manuaba

    2013-01-01

    Full Text Available The rapid development of technology nowadays has major impact to the development of cellular technology. This development led to a new wide range of smartphone. The growth of life nowadays requires people to work more quickly, so that they can use the time more effective and increase the performance. The process which done manually takes a lot more time than the process which done automatically, because the process which done manually have a higher risk of error than the process which done automatically. The process that are still done manually is recording the amount of customer water consumption in PDAM (Regional Water Company. This problem can be solved by creating mobile application that can record the water meter and then automatically send the data of the customer and the amount of water use directly to the computer server and calculated automatically. This application can solve the problem in recording the water meter.

  18. Southern Ocean JGOFS Time Series CTD and Current Meters (NODC Accession 9900167)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CTD and current meter data sets were collected in the Southern Oceans from ROGER REVILLE and moored CTD. Data were collected from 30 October 1997 to 16 March 1998 by...

  19. Currents and other physical parameters collected from moored current meters and various ADCPs offshore the United Kingdom, as part of British Oceanographic Data Center's (BODC) current meter series, from 21 June 1967 to 29 April 2007 (NODC Accession 0067029)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The BODC current meter data set provides all currents data held in the BODC National Oceanographic Database (NODB). It includes entries for Moored Acoustic Doppler...

  20. Development and evaluation of an automated system for testing current meters

    Directory of Open Access Journals (Sweden)

    Ezequiel Saretta

    2016-02-01

    Full Text Available ABSTRACT Current meters are equipment widely used for estimating flow velocity in rivers and streams. Periodic calibrations of current meters are important to ensure the quality of measurements, but the required testing facilities are complex and only available in a few institutions. However, advances in electronics and automation may contribute to developing simple and reliable calibration systems. Thus, this study aimed to develop an automated system for testing current meters, which consisted of a trapezoidal channel, a step motor, a tow car and a management system, composed of a supervisory application and microprocessed modules to control the motor and the data acquisition. Evaluations of the displacement velocity showed that it matched the reference value up to 1.85 m s-1 for a vertical-axis current meter and 2.3 m s-1 for a horizontal-axis one. The developed system showed reliability during tests, for both current meter movement and data acquisition. The management of the system based on the developed modules and the supervisory application improved its user interface, turning all the procedure into a simple task.

  1. DETERMINATION OF HYDRAULIC TURBINE EFFICIENCY BY MEANS OF THE CURRENT METER METHOD

    Directory of Open Access Journals (Sweden)

    PURECE C.

    2016-12-01

    Full Text Available The paper presents methodology used for determining the efficiency of a low head Kaplan hydraulic turbine with short converging intake. The measurement method used was the current meters method, the only measurement method recommended by the IEC 41standard for flow measurement in this case. The paper also presents the methodology used for measuring the flow by means of the current meters method and the various procedures for calculating the flow. In the last part the paper presents the flow measurements carried out on the Fughiu HPP hydraulic turbines for determining the actual operating efficiency.

  2. Near-surface current meter array measurements of internal gravity waves

    Energy Technology Data Exchange (ETDEWEB)

    Jones, H.B.E. [Lawrence Livermore National Lab., CA (United States)

    1994-11-15

    We have developed various processing algorithms used to estimate the wave forms produced by hydrodynamic Internal Waves. Furthermore, the estimated Internal Waves are used to calculate the Modulation Transfer Function (MTF) which relates the current and strain rate subsurface fields to surface scattering phenomenon imaged by radar. Following a brief discussion of LLNL`s measurement platform (a 10 sensor current meter array) we described the generation of representative current and strain rate space-time images from measured or simulated data. Then, we present how our simulation capability highlighted limitations in estimating strain rate. These limitations spurred the application of beamforming techniques to enhance our estimates, albeit at the expense of collapsing our space-time images to 1-D estimates. Finally, we discuss progress with regard to processing the current meter array data captured during the recent Loch Linnhe field trials.

  3. Electronic health records: current and future use.

    Science.gov (United States)

    Peters, Steve G; Khan, Munawwar A

    2014-09-01

    This paper provides an overview of the current state of the electronic medical record, including benefits and shortcomings, and presents key factors likely to drive development in the next decade and beyond. The current electronic medical record to a large extent represents a digital version of the traditional paper legal record, owned and maintained by the practitioner. The future electronic health record is expected to be a shared tool, engaging patients in decision making, wellness and disease management and providing data for individual decision support, population management and analytics. Many drivers will determine this path, including payment model reform, proliferation of mobile platforms, telemedicine, genomics and individualized medicine and advances in 'big data' technologies.

  4. Current meter data from moored current meter casts in the TOGA Area - Pacific (30 N to 30 S) as part of the Equatorial Pacific Ocean Climate Studies (EPOCS) project from 24 May 1988 to 26 May 1989 (NODC Accession 9100207)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using moored current meter casts in the TOGA Area - Pacific (30 N to 30 S) from 24 May 1988 to 26 May 1989. Data were submitted by...

  5. Doppler recordings after diving to depth of 30 meters at high altitude of 4,919 meters (16,138 feet) during the Tilicho Lake Expedition 2007.

    Science.gov (United States)

    Kot, J; Sicko, Z; Zyszkowski, M; Brajta, M

    2014-01-01

    When going to high altitude (higher than 2,400 meters above mean sea level [about 8,200 feet]), human physiology is strongly affected by changes in atmospheric conditions, including decreased ambient pressure and hypobaric hypoxia, which can lead to severe hypoxemia, brain and/or pulmonary edema, negative changes in body and blood composition, as well as disturbances in regional microcirculation. When adding other factors, such as dehydration, physical exercise and exposure to low temperature, it is likely that nitrogen desaturation after diving at such environmental conditions is far from optimal, There are only single reports on diving at high alti-tudes. In 2007 a Polish team of climbers and divers participated in the Tilicho Lake and Peak Expedition to the Himalaya Mountains in Nepal. During this expedition, four divers conducted six dives in the Tilicho Lake at altitude of 4,919 meters above mean sea level equivalent (16,138 feet) to a maximum depth of 15 meters of fresh water (mfw) (equivalent to 28 mfw at sea level by the Cross Correction method) and 30 mfw (equivalent to 57 mfw at sea level "by Cross correction). Decompression debt was calculated using Cross Correction with some additional safety add-ons. Precordial Doppler recordings were taken every 15 minutes until 90 minutes after surfacing. No signs or symptoms of decompression sickness were observed after diving but in one diver, very high bubble grade Doppler signals were recorded. It can be concluded that diving at high altitude should be accompanied by additional safety precautions as well as taking into account personal sensitivity for such conditions.

  6. Current meter and other data from meters on fixed platforms from the Chukchi Sea as part of the Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 14 July 1985 to 04 October 1987 (NODC Accession 8800032)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter and other data were collected from meters on NOAA Ship OCEANOGRAPHER AND NOAA Ship SURVEYOR in the Chukchi Sea by the University of Alaska - Fairbanks;...

  7. Current direction and CTD data from moored current meter and CTD casts in the Delaware Bay from 01 January 1984 - 01 December 1984 (NODC Accession 8600001)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction and CTD data were collected using moored current meter and CTD casts in the Delaware Bay from January 1, 1984 to December 1, 1985. Data were...

  8. Current components data from current meters from the NE Pacific (limit-180) from 01 June 1954 to 01 June 1970 (NODC Accession 7601441)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current components data were collected from current meters in the NE Pacific (limit-180). Data were collected by the Japanese Hydrographic Office from 01 June 1954...

  9. Current direction and CTD data from moored current meter and CTD casts in the North Pacific Ocean from 05 February 1979 - 01 December 1980 (NODC Accession 8300042)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction and CTD data were collected using moored current meter and CTD casts in the North Pacific Ocean from February 5, 1979 to December 1, 1980. Data...

  10. Current direction data from moored current meter casts in the North Pacific Ocean, 31 May 1983 - 01 October 1983 (NODC Accession 8400162)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction data were collected using moored current meter casts in the North Pacific Ocean from May 31, 1983 to October 1, 1983. Data were submitted by...

  11. Current direction and temperature data from moored current meter casts in the Atlantic Ocean from 29 August 1979 - 01 November 1979 (NODC Accession 8200153)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction and temperature data were collected using moored current meter casts in the Atlantic Ocean from August 29, 1979 to November 1, 1979. Data were...

  12. Current direction data from moored current meter casts in the North Pacific Ocean from 30 June 1979 - 16 August 1979 (NODC Accession 8200104)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction data were collected using moored current meter casts in the North Pacific Ocean from June 30, 1979 to August 16, 1979. Data were submitted by...

  13. Current direction data from moored current meter casts in the Delaware Bay from 23 February 1976 - 23 September 1985 (NODC Accession 8600005)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction data were collected using moored current meter casts in the Delaware Bay from February 23, 1976 to September 23, 1985. Data were submitted by...

  14. Current direction data from moored current meter casts in the North Atlantic Ocean 09 July 1975 - 01 November 1976 (NODC Accession 8300078)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction data were collected using moored current meter casts in the North Atlantic Ocean from July 9, 1975 to November 1, 1976. Data were submitted by...

  15. Current direction, temperature, and conductivity data from moored current meter casts in the North Pacific Ocean from 29 April 1981 - 02 December 1981 (NODC Accession 8300030)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, temperature, and conductivity data were collected using moored current meter casts in the North Pacific Ocean from April 29, 1981 to December 2,...

  16. Current direction and CTD data from moored current meter and CTD casts in the Atlantic Ocean from 04 August 1980 - 14 August 1981 (NODC Accession 8200240)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction and CTD data were collected using moored current meter and CTD casts in the Atlantic Ocean from August 4, 1980 to August 14, 1981. Data were...

  17. Current direction data from moored current meter casts in the Gulf of Mexico during the Brine Disposal project, 16 July 1979 - 02 August 1979 (NODC Accession 8000501)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction data were collected using moored current meter casts in the Gulf of Mexico from July 16, 1979 to August 2, 1979. Data were submitted by Texas A...

  18. Current direction and temperature data from moored current meter casts in the Gulf of Mexico from 24 March 1980 - 16 June 1980 (NODC Accession 8200220)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction and temperature data were collected using moored current meter casts in the Gulf of Mexico from March 24, 1980 to June 16, 1980. Data were...

  19. Current meter components and other data from FIXED PLATFORMS from 07 September 1981 to 01 September 1982 (NODC Accession 8500066)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter components data were collected from FIXED PLATFORMS from 07 September 1981 to 01 September 1982. Data were collected by the University of Washington...

  20. Current meter components and other data from FIXED PLATFORMS from 20 September 1987 to 09 October 1991 (NODC Accession 9100216)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter components data were collected from FIXED PLATFORMS from 20 September 1987 to 09 October 1991. Data were collected by the Woods Hole Oceanographic...

  1. Current meter components and other data from FIXED PLATFORMS from 09 November 1977 to 20 February 1990 (NODC Accession 9300129)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter components data were collected from FIXED PLATFORMS from 09 November 1977 to 20 February 1990. Data were collected by the Maritime Safety Agency;...

  2. Current meter - direction and other data from FIXED PLATFORMS from 10 May 1976 to 19 June 1976 (NODC Accession 7900071)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter - direction and other data were collected from FIXED PLATFORMS from 10 May 1976 to 19 June 1976. Data were collected by the National Ocean Service...

  3. Current meter - direction and other data from FIXED PLATFORMS from 27 June 1972 to 10 October 1972 (NODC Accession 7500581)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter - direction and other data were collected from FIXED PLATFORMS. Data were collected by the National Ocean Service (NOS) from 27 June 1972 to 10 October...

  4. Current meter, CTD, and other data from the Mid-Atlantic Bight from 13 April 2003 to 17 April 2003 (NODC Accession 0002443)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter, CTD, and other data were collected using CTD, current meter, fluorometer, and tow in the Mid-Atlantic Bight from April 14, 2003 to April 17, 2003....

  5. Current meter data collected from a fixed platform in TOGA Area - Pacific Ocean from 15 June 1980 to 16 December 1981 (NODC Accession 9400104)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected using current meter in the TOGA Area - Pacific Ocean from a fixed platform. Data were collected from 15 June 1980 to 16 December...

  6. Current direction and wind data from moored current meter casts and other instruments in the Puget Sound during the Mesa Puget Sound/PSERP (MESA -PS) project, 21 June 1977 - 25 September 1977 (NODC Accession 7800257)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter and wind data were collected using moored current meter casts and other instruments in the Puget Sound from June 21, 1977 to September 25, 1977. Data...

  7. Current meter and marine toxic substances data from moored current meter casts and other instruments in the North Pacific Ocean as part of the Deep Ocean Mining and Environmental Study (DOMES) project, 29 August 1975 - 01 December 1977 (NODC Accession 7800741)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter and marine toxic substances data were collected using moored current meter casts and other instruments in the North Pacific Ocean from August 29, 1975...

  8. Relation of sortable silt grain-size to deep-sea current speeds: Calibration of the 'Mud Current Meter'

    Science.gov (United States)

    McCave, I. N.; Thornalley, D. J. R.; Hall, I. R.

    2017-09-01

    Fine grain-size parameters have been used for inference of palaeoflow speeds of near-bottom currents in the deep-sea. The basic idea stems from observations of varying sediment size parameters on a continental margin with a gradient from slower flow speeds at shallower depths to faster at deeper. In the deep-sea, size-sorting occurs during deposition after benthic storm resuspension events. At flow speeds below 10-15 cm s-1 mean grain-size in the terrigenous non-cohesive 'sortable silt' range (denoted by SS bar , mean of 10-63 μm) is controlled by selective deposition, whereas above that range removal of finer material by winnowing is also argued to play a role. A calibration of the SS bar grain-size flow speed proxy based on sediment samples taken adjacent to sites of long-term current meters set within 100 m of the sea bed for more than a year is presented here. Grain-size has been measured by either Sedigraph or Coulter Counter, in some cases both, between which there is an excellent correlation for SS bar (r = 0.96). Size-speed data indicate calibration relationships with an overall sensitivity of 1.36 ± 0.19 cm s-1/μm. A calibration line comprising 12 points including 9 from the Iceland overflow region is well defined, but at least two other smaller groups (Weddell/Scotia Sea and NW Atlantic continental rise/Rockall Trough) are fitted by sub-parallel lines with a smaller constant. This suggests a possible influence of the calibre of material supplied to the site of deposition (not the initial source supply) which, if depleted in very coarse silt (31-63 μm), would limit SS bar to smaller values for a given speed than with a broader size-spectrum supply. Local calibrations, or a core-top grain-size and local flow speed, are thus necessary to infer absolute speeds from grain-size. The trend of the calibrations diverges markedly from the slope of experimental critical erosion and deposition flow speeds versus grain-size, making it unlikely that the SS bar (or

  9. Current meter and other data collected using current meter casts from R/V RESEARCHER and R/V CALANUS in the Atlantic and Pacific Ocean as part of the Eastern Pacific Ocean Circulation Study (EPOCS) and Subtropical Atlantic Current Study (STACS), 23 March 1983 - 19 November 1986 (NODC Accession 8700226)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter and other data were collected using current meter casts from R/V RESEARCHER and R/V CALANUS in the Atlantic and Pacific Ocean from March 23, 1983 to...

  10. Your Glucose Meter

    Science.gov (United States)

    ... Devices Radiation-Emitting Products Vaccines, Blood & Biologics Animal & Veterinary Cosmetics Tobacco ... Tips for Testing Your Blood Sugar and Caring for Your Meter Glucose meters test and record how much sugar (called glucose) is in your ...

  11. Electromagnetic Flow Meter Having a Driver Circuit Including a Current Transducer

    Science.gov (United States)

    Karon, David M. (Inventor); Cushing, Vincent (Inventor); Patel, Sandeep K. (Inventor)

    2014-01-01

    An electromagnetic flow meter (EMFM) accurately measures both the complete flow rate and the dynamically fluctuating flow rate of a fluid by applying a unipolar DC voltage to excitation coils for a predetermined period of time, measuring the electric potential at a pair of electrodes, determining a complete flow rate and independently measuring the dynamic flow rate during the "on" cycle of the DC excitation, and correcting the measurements for errors resulting from galvanic drift and other effects on the electric potential. The EMFM can also correct for effects from the excitation circuit induced during operation of the EMFM.

  12. NODC Standard Product: Texas-Louisiana Shelf Circulation and Transport Processes Study: Current Meter, Meteorological Buoy, XBT/XSV/XCP/CTD/IES (NODC Accession 9700319)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This package contains current direction/velocity, water temperature, air temperature, salinity, and other data which were collected using current meter, CTD casts,...

  13. Modeling and managing urban water demand through smart meters: Benefits and challenges from current research and emerging trends

    Science.gov (United States)

    Cominola, A.; Giuliani, M.; Castelletti, A.; Piga, D.; Rizzoli, A. E.

    2015-12-01

    Urban population growth, climate and land use change are expected to boost residential water demand in urban contexts in the next decades. In such a context, developing suitable demand-side management strategies is essential to meet future water demands, pursue water savings, and reduce the costs for water utilities. Yet, the effectiveness of water demand management strategies (WDMS) relies on our understanding of water consumers' behavior, their consumption habits, and the water use drivers. While low spatial and temporal resolution water consumption data, as traditionally gathered for billing purposes, hardly support this understanding, the advent of high-resolution, smart metering technologies allowed for quasi real-time monitoring water consumption at the single household level. This, in turn, is advancing our ability in characterizing consumers' behavior, modeling, and designing user-oriented residential water demand management strategies. Several water smart metering programs have been rolled-out in the last two decades worldwide, addressing one or more of the following water demand management phases: (i) data gathering, (ii) water end-uses characterization, (iii) user modeling, (iv) design and implementation of personalized WDMS. Moreover, the number of research studies in this domain is quickly increasing and big economic investments are currently being devoted worldwide to smart metering programs. With this work, we contribute the first comprehensive review of more than 100 experiences in the field of residential water demand modeling and management, and we propose a general framework for their classification. We revise consolidated practices, identify emerging trends and highlight the challenges and opportunities for future developments given by the use of smart meters advancing residential water demand management. Our analysis of the status quo of smart urban water demand management research and market constitutes a structured collection of information

  14. Current meter data from moored current meter in the Gulf of Mexico as part of the Gulf of Mexico Physical Oceanography project from 05 May 1984 to 18 May 1989 (NODC Accession 8900258)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Data consists of Acoustic Doppler Current Profiles recorded in NODC'S F004 format. The data were collected using an Ametek-Straza instrument aboard the R/V CAPE...

  15. Eddy current analysis of permanent magnet dynamometers; Eikyu jishakushiki dinamo meter no kadenryu kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-02-29

    The ultra-low inertia dynamometer equivalent to engines in inertia adopts a rare earth element magnet with large energy product, and simulates engine torque fluctuation by superimposing harmonic current on a stator coil. Since temperature rise is thus predicted by generation of fluctuating magnetic field due to the harmonic current or eddy current due to normal slot harmonics, sufficient study on eddy current loss is necessary for designs to prevent such performance drop. Eddy current analysis is under investigation by 3-D FEM for various size and shape magnets. The analysis example of an eddy current density distribution is illustrated for the one-pole section of the magnet stuck on a rotor surface which is divided into 4 parts along a rotor periphery. More precise analysis of such eddy current loss is scheduled for higher-reliability product design. (translated by NEDO)

  16. Temperature, current meter, and other data using current meter, thermistor, and mooring casts from the HUNT from the Pacific Ocean as part of the International Decade of Ocean Exploration / International Southern Ocean Studies / First Dynamic Response and Kinematics Experiment in the Drake Passage (IDOE/ISOS/FDRAKE) project, from 28 June 1982 to 23 November 1983 (NODC Accession 9500019)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Temperature, conductivity, east-west current component, north-south current component, depth, pressure, and salinity data were collected using current meter,...

  17. Temperature profile and current meter data collected using current meter (PCM) from the CHAIN in the Northeast Atlantic Ocean (limit-40 W) as part of the International Decade of Ocean Exploration / Mid-Ocean Dynamics Experiment from 01 May 1973 to 01 June 1973 (NODC Accession 7600732)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Temperature, pressure, depth, east-west current component, and north-south current component data were collected using current meter (PCM) from the CHAIN in the...

  18. Current meter components and other data from FIXED PLATFORMS from the North Atlantic Ocean and others locations from 31 March 1979 to 01 November 1980 (NODC Accession 8600181)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter components data were collected from FIXED PLATFORMS in the North Atlantic Ocean and others locations from 31 March 1979 to 01 November 1980. Data were...

  19. Current meter - direction and other data from FIXED PLATFORMS in support of the Brine Disposal project from 01 August 1978 to 31 August 1978 (NODC Accession 7900073)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter - direction and other data were collected from FIXED PLATFORMS from 01 August 1978 to 31 August 1978. Data were collected by the National Data Buoy...

  20. Current meter components and other data from FIXED PLATFORMS from the South Atlantic Ocean from 05 January 1991 to 19 February 1993 (NODC Accession 9500069)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter components data were collected from FIXED PLATFORMS in the South Atlantic Ocean from 05 January 1991 to 19 February 1993. Data were collected by the...

  1. Salinity data from moored current meter casts in the Northeast Pacific Ocean, Bering Sea, and Gulf of Alaska from 03 October 1984 - 01 May 1988 (NODC Accession 8900056)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Salinity data were collected using moored current meter casts in the North Pacific Ocean, Bering Sea, and Gulf of Alaska from October 3, 1984 to May 1, 1988. Data...

  2. Current meter components and other data from FIXED PLATFORMS from the North American Coastline-South from 01 February 1979 to 10 October 1979 (NODC Accession 9200031)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter components data were collected from FIXED PLATFORMS from the North American Coastline-South from 01 February 1979 to 10 October 1979. Data were...

  3. Current meter and other data from FIXED PLATFORMS from East China Sea (Tung Hai) from 02 June 1980 to 18 November 1981 (NODC Accession 8700250)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected from FIXED PLATFORMS in the East China Sea (Tung Hai) from 02 June 1980 to 18 November 1981. Data were collected by the Pacific...

  4. Current meter components and other data from FIXED PLATFORMS from the Puget Sound from 10 February 1982 to 01 April 1982 (NODC Accession 8600168)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter components data were collected from FIXED PLATFORMS in the Puget Sound from 10 February 1982 to 01 April 1982. Data were collected by the Pacific...

  5. Current meter components and other data from FIXED PLATFORMS from the Chinhae Bay (Korea) from 15 June 1982 to 01 July 1982 (NODC Accession 9000178)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter components data were collected from FIXED PLATFORMS in the Chinhae Bay (Korea) from 15 June 1982 to 01 July 1982. Data were collected by the Korean...

  6. Physical and other data from CTD casts, current meters, and other instruments from 01 January 1989 to 31 December 1989 (NODC Accession 9100163)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Physical and other data were collected from CTD casts, current meters, and other instruments. Data were collected by the Japanese Hydrographic Office from 01 January...

  7. Physical and other data from CTD casts, current meters, and other instruments from 01 January 1990 to 31 December 1990 (NODC Accession 9300092)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — hysical and other data were collected from CTD casts, current meters, and other instruments. Data were collected by the Japanese Hydrographic Office from 01 January...

  8. Current meter and other data parameters collected FIXED PLATFORMS from 1984 to 2001 to define net circulation through the Florida Keys (NODC Accession 0000582)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current, wind, and temperature data were collected in the Florida Keys passages from FIXED PLATFORMS using meters for direct observations. Data were collected by the...

  9. Current meter components and other data from FIXED PLATFORMS from the SW Atlantic (limit-20 W) from 27 January 1986 to 01 April 1987 (NODC Accession 8800329)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter components data were collected from FIXED PLATFORMS in the SW Atlantic (limit-20 W) from 27 January 1986 to 01 April 1987. Data were collected by...

  10. Salinity and sigma-t data from moored current meter and CTD casts in the North Pacific Ocean from 26 August 1979 - 07 June 1982 (NODC Accession 8200146)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Salinity and sigma-t data were collected using moored current meter and CTD casts in the North Pacific Ocean from August 26, 1979 to June 7, 1982. Data were...

  11. Current meter components and other data from FIXED PLATFORMS from the Chukchi Sea from 27 August 1990 to 05 October 1991 (NODC Accession 9300039)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter components data were collected from FIXED PLATFORMS in the Chukchi Sea from 27 August 1990 to 05 October 1991. Data were collected by the Pacific...

  12. Current meter - direction and other data from the G. B. KELEZ from 21 April 1977 to 03 November 1977 (NODC Accession 7800893)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter - direction and other data were collected from the G. B. KELEZ from 21 April 1977 to 03 November 1977. Data were collected by the National Ocean...

  13. Current meter - direction and other data from FIXED PLATFORMS in support of the Brine Disposal project from 01 September 1978 to 30 September 1978 (NODC Accession 7900007)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter - direction and other data were collected from FIXED PLATFORMS from 01 September 1978 to 30 September 1978. Data were collected by the National Data...

  14. Temperature and salinity data from moored current meter casts in the Gulf of Mexico during the Brine Disposal project, 02 June 1978 - 01 June 1979 (NODC Accession 8000499)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Temperature and salinity data were collected using moored current meter casts in the Gulf of Mexico from June 2, 1978 to June 1, 1979. Data were submitted by...

  15. Current meter - direction and other data from FIXED PLATFORMS in support of the Brine Disposal project from 01 October 1979 to 01 January 1980 (NODC Accession 8000049)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter - direction and other data were collected from FIXED PLATFORMS from 01 October 1979 to 01 January 1980. Data were collected by the National Data Buoy...

  16. Current meter components and other data from FIXED PLATFORMS from Coastal Waters of California from 27 April 1988 to 01 June 1989 (NODC Accession 9000294)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter components data were collected from FIXED PLATFORMS in the Coastal Waters of California from 27 April 1988 to 01 June 1989. Data were collected by the...

  17. Current meter data from FIXED PLATFORMS as part of the Tropical Ocean Global Atmosphere (TOGA) project from 15 May 1988 to 19 June 1989 (NODC Accession 9700014)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected from FIXED PLATFORMS from 15 May 1988 to 19 June 1989. University of South Florida (USF) as part of the Tropical Ocean Global...

  18. Temperature and salinity data from moored current meter casts in the Gulf of Mexico during the Brine Disposal project, 01 September 1980 - 01 September 1980 (NODC Accession 8000608)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Temperature and salinity data were collected using moored current meter casts in the Gulf of Mexico from September 1, 1980 to September 1, 1980. Data were submitted...

  19. Current meter components and other data from FIXED PLATFORMS in support of the Physical Oceanography Field Program Offshore North Carolina from 19 February 1992 (NODC Accession 9400063)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter components data were collected from FIXED PLATFORMS in the NW Atlantic (limit-40 W) from 19 February 1992. Data were collected by the Science...

  20. Current meter components and other data from FIXED PLATFORMS from NE Pacific (limit-180) from 25 April 1984 to 01 May 1990 (NODC Accession 9100018)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter components data were collected from FIXED PLATFORMS in the NE Pacific (limit-180) from 25 April 1984 to 01 May 1990. Data were collected by the Pacific...

  1. Skill Testing a Three-Dimensional Global Tide Model to Historical Current Meter Records

    Science.gov (United States)

    2013-12-17

    Uehara et al., 2006; Griffiths and Peltier , 2008, 2009; Green, 2010]. The model-data validation in these papers focuses on sea sur- face elevations rather...Ocean tides and resonance, Ocean Dyn., 60, 1243– 1253, doi:10.1007/s10236-010-0331-1. Griffiths, S. D., and W. R. Peltier (2008), Megatides in the Arctic...Ocean under glacial conditions, Geophys. Res. Lett., 35, L08605, doi:10.1029/ 2008GL033263. Griffiths, S. D., and W. R. Peltier (2009), Modeling of

  2. A Compilation of Moored Current Meter and Wind Recorder Observations. Volume 26, (1972 Measurements)

    Science.gov (United States)

    1981-05-01

    Model 850. Both instruments use a Savonius rotor to measure water speed and a vane and int3rnal compass to measure direction. In the VACM, East and North... Savonius rotor to measure water speed and a vane and internal compass to measure direction. In the VACM, EasL and North components are calculated from the

  3. Inter-comparison between Aanderaa and Potok current meters deployed during INDEX programme

    Digital Repository Service at National Institute of Oceanography (India)

    Fernandes, A.A.; Pednekar, S.M.; Vethamony, P.

    was nearly zero degree in the above said frequency range indicating that both registered the same signal. At the inertial frequency, rotary spectral analysis showed that the currents are anticlockwise (southern hemisphere) and cross spectral analysis showed...

  4. Electronic health records and online medical records: an asset or a liability under current conditions?

    Science.gov (United States)

    Allen-Graham, Judith; Mitchell, Lauren; Heriot, Natalie; Armani, Roksana; Langton, David; Levinson, Michele; Young, Alan; Smith, Julian A; Kotsimbos, Tom; Wilson, John W

    2017-01-20

    Objective The aim of the present study was to audit the current use of medical records to determine completeness and concordance with other sources of medical information.Methods Medical records for 40 patients from each of five Melbourne major metropolitan hospitals were randomly selected (n=200). A quantitative audit was performed for detailed patient information and medical record keeping, as well as data collection, storage and utilisation. Using each hospital's current online clinical database, scanned files and paperwork available for each patient audited, the reviewers sourced as much relevant information as possible within a 30-min time allocation from both the record and the discharge summary.Results Of all medical records audited, 82% contained medical and surgical history, allergy information and patient demographics. All audited discharge summaries lacked at least one of the following: demographics, medication allergies, medical and surgical history, medications and adverse drug event information. Only 49% of records audited showed evidence the discharge summary was sent outside the institution.Conclusions The quality of medical data captured and information management is variable across hospitals. It is recommended that medical history documentation guidelines and standardised discharge summaries be implemented in Australian healthcare services.What is known about this topic? Australia has a complex health system, the government has approved funding to develop a universal online electronic medical record system and is currently trialling this in an opt-out style in the Napean Blue Mountains (NSW) and in Northern Queensland. The system was originally named the personally controlled electronic health record but has since been changed to MyHealth Record (2016). In Victoria, there exists a wide range of electronic health records used to varying degrees, with some hospitals still relying on paper-based records and many using scanned medical records. This

  5. Lipid bilayer microarray for parallel recording of transmembrane ion currents.

    Science.gov (United States)

    Le Pioufle, Bruno; Suzuki, Hiroaki; Tabata, Kazuhito V; Noji, Hiroyuki; Takeuchi, Shoji

    2008-01-01

    This paper describes a multiwell biochip for simultaneous parallel recording of ion current through transmembrane pores reconstituted in planar lipid bilayer arrays. Use of a thin poly(p-xylylene) (parylene) film having micrometer-sized apertures (phi=15-50 microm, t=20 microm) led to formation of highly stable bilayer lipid membranes (BLMs) for incorporation of transmembrane pores; thus, a large number of BLMs could be arrayed without any skillful technique. We optically confirmed the simultaneous formation of BLMs in a 5x5 matrix, and in our durability test, the BLM lasted more than 15 h. Simultaneous parallel recording of alamethicin and gramicidin transmembrane pores in multiple contiguous recording sites demonstrated the feasibility of high-throughput screening of transmembrane ion currents in artificial lipid bilayers.

  6. Current components, physical, and other data from moored current meters and CTD casts from NOAA Ship McARTHUR and other platforms from 1983-10-04 to 1984-02-01 (NODC Accession 8500128)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current components, physical, and other data were collected by moored current meters and CTD casts from NOAA Ship McARTHUR and other platforms. Data were collected...

  7. Current direction, benthic organisms, zooplankton, chemical, toxis substances, and other data from moored current meter casts and other instruments in the Gulf of Mexico during the Brine Disposal project, 24 March 1981 - 19 February 1982 (NODC Accession 8200129)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, benthic organisms, zooplankton, chemical, toxic substances, and other data were collected using moored current meter casts and other instruments...

  8. Current direction, chemical, zooplankton, phytoplankton, and other data from moored current meter casts and other instruments in the Gulf of Mexico during the Brine Disposal project, 24 March 1981 - 03 November 1981 (NODC Accession 8200042)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, temperature, salinity, and other data were collected using moored current meter casts and other instruments in the Gulf of Mexico from March 24,...

  9. Current direction, temperature, zooplankton, phytoplankton, and other data from moored current meter casts in the Gulf of Mexico during the Brine Disposal project, 15 July 1980 - 20 March 1981 (NODC Accession 8100610)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, temperature, salinity, and other data were collected using moored current meter casts in the Gulf of Mexico from July 15, 1980 to March 20, 1981....

  10. Current direction, wind wave spectra, phytoplankton, zooplankton, and other data from moored current meter casts and other instruments in the Gulf of Mexico during the Brine Disposal project, 24 September 1977 - 31 August 1981 (NODC Accession 8100681)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, chemical, phytoplankton, zooplankton, wind wave spectra, and other data were collected using moored current meter casts and other instruments in...

  11. Current direction, chemical, and other data from moored current meter casts and other instruments in the Gulf of Mexico during the Brine Disposal project, 13 December 1980 - 01 March 1982 (NODC Accession 8200097)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, chemical, and other data were collected using moored current meter casts and other instruments in the Gulf of Mexico from December 13, 1980 to...

  12. Current direction, zooplankton, wind wave spectra, benthic organisms, and other data from moored current meter casts and other instruments in the Gulf of Mexico during the Brine Disposal project, 18 October 1977 to 01 May 1979 (NODC Accession 7900270)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, zooplankton, benthic organisms, wind wave spectra, and other data were collected using moored current meter casts and other instruments in the...

  13. Current direction, chemical, phytoplankton, and other data from moored current meter casts and other instruments in the Gulf of Mexico during the Brine Disposal project, 21 November 1977 to 09 September 1981 (NODC Accession 8200008)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, chemical, phytoplankton, zooplankton, and other data were collected using moored current meter casts and other instruments in the Gulf of Mexico...

  14. Current direction, benthic organisms, wind wave spectra data from moored current meter casts and other instruments in the Gulf of Mexico during the Brine Disposal project, 25 March 1977 - 01 February 1980 (NODC Accession 8000320)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, benthic organisms, wind wave spectra, and other data were collected using moored current meter casts in the Gulf of Mexico from March 25, 1977 to...

  15. Current direction, wind direction, temperature, and salinity data from moored current meter casts in the Gulf of Mexico during the Brine Disposal project, 01 February 1981 - 01 February 1981 (NODC Accession 8100516)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, temperature, wind direction, and salinity data were collected using moored current meter casts in the Gulf of Mexico from February 1, 1981 to...

  16. Current direction, marine toxic substances, and wind wave spectra data from moored current meter casts and other instruments in the Gulf of Mexico as part of the Brine Disposal project, 22 December 1977 - 30 September 1979 (NODC Accession 7900336)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, marine toxic substances, and wind wave spectra data were collected using moored current meter casts and other instruments in the Gulf of Mexico...

  17. Current direction, marine toxic substances, and other data from current meters and grab casts from the GUSS III and other platforms in support of the Brine Disposal project from 20 October 1977 to 16 April 1979 (NODC Accession 8000029)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, marine toxic substances, and other data from were collected from current meters and grab casts from the GUSS III and other platforms from 20...

  18. Current direction and wind wave spectra data from moored current meter casts in the Gulf of Mexico as part of the Brine Disposal project, from 1978-06-28 to 1979-02-28 (NODC Accession 7900169)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, salinity, and wind wave spectra data were collected using moored current meter casts in the Gulf of Mexico from June 28, 1978 to February 28,...

  19. Current direction, wind wave spectra, and other data from moored current meter casts and other instruments in the Gulf of Mexico during the Brine Disposal project, 11 October 1978 - 19 March 1980 (NODC Accession 8000368)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, wind wave spectra, and other data were collected using moored current meter casts and other instruments from the CAPT JACK and EXCELLENCE in the...

  20. Current direction, temperature, and other data from moored current meter casts in the Gulf of Mexico during the Brine Disposal project, 15 May 1979 - 22 March 1980 (NODC Accession 8000457)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Temperature, salinity, current direction, and other data were collected using moored current meter casts from the EXCELLENCE in the Gulf of Mexico from May 15, 1979...

  1. Current direction, temperature, and other data from moored current meter casts and other instruments in the Gulf of Mexico during the Brine Disposal project, 14 September 1977 - 20 April 1981 (NODC Accession 8100585)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, temperature, salinity, and other data were collected using moored current meter casts and other instruments in the Gulf of Mexico from September...

  2. Current direction, chemical, phytoplankton, zooplankton, and other data from moored current meter casts and other instruments in the Gulf of Mexico during the Brine Disposal project, 15 September 1977 - 27 May 1981 (NODC Accession 8100657)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, chemical, phytoplankton, zooplankton, and other data were collected using moored current meter casts and other instruments in the Gulf of Mexico...

  3. Current direction, chemical, zooplankton, phytoplankton, and other data from moored current meter casts and other instruments in the Gulf of Mexico during the Brine Disposal project, 19 February 1982 - 23 March 1983 (NODC Accession 8300099)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, chemical, phytoplankton, zooplankton, and other data were collected using moored current meter casts and other instruments in the Gulf of Mexico...

  4. Current direction, wind wave spectra, and CTD data from moored current meter and CTD casts in the North Atlantic Ocean from 15 September 1982 - 15 September 1983 (NODC Accession 8500148)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, wind wave spectra, and CTD data were collected using moored current meter and CTD casts in the Gulf of Mexico from September 3, 1982 to September...

  5. Current components, pressure, and other data from moored current meters and pressure gauges from FIXED PLATFORMS from the Greenland and Beaufort Seas from 28 March 1987 to 01 June 1988 (NODC Accession 8900129)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current components, pressure, and other data were collected from moored current meters and pressure gauges from FIXED PLATFORMS in the Greenland and Beaufort Seas....

  6. Current direction, temperature, and salinity data from moored current meter casts in the Gulf of Mexico during the Topographic Features project, 16 January 1979 - 01 May 1982 (NODC Accession 8400120)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, temperature, and salinity data were collected using moored current meter casts in the Gulf of Mexico from January 16, 1979 to May 1, 1982. Data...

  7. Current direction, temperature, and salinity data from moored current meter casts in the Gulf of Mexico during the Brine Disposal project, 04 December 1983 - 01 December 1984 (NODC Accession 8500251)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, temperature, and salinity data were collected using moored current meter casts in the Gulf of Mexico from December 4, 1983 to December 1, 1984....

  8. Wind direction/velocity and current direction/velocity data from current meter casts in a world wide distribution from 1970-12-06 to 1991-10-01 (NODC Accession 9700218)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Wind direction/velocity and current direction/velocity data were collected using current meter casts in a world wide distribution from December 6, 1970 to October...

  9. Current direction and wind wave spectra data from moored current meter casts in the Gulf of Mexico as part of the Brine Disposal project, 02 February 1977 - 31 January 1979 (NODC Accession 7900144)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, salinity, and wind wave spectra data were collected using moored current meter casts in the Gulf of Mexico from February 2, 1978 to January 31,...

  10. Current direction, benthic organisms, wind wave spectra, and other data from moored current meter casts and other instruments in the Gulf of Mexico during the Brine Disposal project, 12 January 1978 - 01 June 1980 (NODC Accession 8000465)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, benthic organisms, wind wave spectra, and other data were collected using moored current meter casts and other instruments from the CAPT JACK and...

  11. Current components, physical, and other data from moored current meters and CTD casts from NOAA Ship Discoverer and other platforms from the NE Pacific (limit-180) from 1993-08-18 to 1994-09-28 (NODC Accession 9500006)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current components, physical, and other data from moored current meters and CTD casts from NOAA Ship DISCOVERER and other platforms from the NE Pacific (limit-180)....

  12. Current components, physical, and other data from moored current meters and CTD casts from the ALPHA HELIX and other platforms from Gulf of Alaska from 28 April 1988 to 29 June 1988 (NODC Accession 8800237)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current components, physical, and other data were collected by moored current meters and CTD casts in the Gulf of Alaska from the ALPHA HELIX and other platforms....

  13. Current direction, chemical, and marine toxic substances data from moored current meter casts and other instruments in the Gulf of Mexico during the Brine Disposal project, 09 September 1978 - 19 November 1979 (NODC Accession 8000043)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, marine toxic substances, and chemical data were collected using moored current meter casts and other instruments in the Gulf of Mexico from...

  14. Current direction, marine toxic substances, and wind wave spectra data from moored current meter casts and other instruments in the Gulf of Mexico as part of the Brine Disposal project, 15 September 1977 - 30 June 1979 (NODC Accession 7900295)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, marine toxic substances, and wind wave spectra data were collected using moored current meter casts and other instruments in the Gulf of Mexico...

  15. Current direction, chemical, benthic organisms, and other data from moored current meter casts and other instruments in the Gulf of Mexico during the Brine Disposal project, 21 January 1981 - 27 July 1982 (NODC Accession 8200207)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, chemical, benthic organisms, and other data were collected using moored current meter casts and other instruments in the Gulf of Mexico from...

  16. Current direction, benthic organisms, temperature, and wind direction data from moored current meter casts in the Gulf of Mexico during the Brine Disposal project, 22 September 1977 - 30 November 1978 (NODC Accession 7900110)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, benthic organisms, temperature, and wind direction data were collected using moored current meter casts in the Gulf of Mexico from September 22,...

  17. Current direction/velocity and other data from current meter casts in Coastal Waters of Hawaii from 1991-09-30 to 1996-04-26 (NODC Accession 9700214)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction/velocity, wind direction/velocity, and water temperature data were collected using current meter in the Coastal Waters of Hawaii from September...

  18. Current direction, chemical, zooplankton, and other data from moored current meter casts and other instruments in the Gulf of Mexico during the Brine Disposal project, 22 September 1978 - 22 January 1979 (NODC Accession 7900212)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, chemical, zooplankton, and other data were collected using moored current meter casts and other instruments in the Gulf of Mexico from September...

  19. Current direction, chemical, benthic organisms, and other data from moored current meter casts and other instruments in the Gulf of Mexico during the Brine Disposal project, 10 March 1980 - 29 July 1981 (NODC Accession 8100727)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, chemical, benthic organisms, and other data were collected using moored current meter casts and other instruments in the Gulf of Mexico from March...

  20. Current direction, chemical, benthic organisms, and wind wave spectra data from moored current meter casts and other instruments in the Gulf of Mexico as part of the Brine Disposal project, 14 October 1977 - 24 August 1979 (NODC Accession 7900335)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, chemical, benthic organisms, and wind direction data were collected using moored current meter casts and other instruments in the Gulf of Mexico...

  1. Current direction and wind wave spectra data from moored current meter casts in the Gulf of Mexico as part of the Brine Disposal project, 22 December 1977 - 01 July 1978 (NODC Accession 7900123)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, temperature, and wind wave spectra data were collected using moored current meter casts in the Gulf of Mexico from December 22, 1977 to October...

  2. Current direction, temperature, and salinity data from moored current meter casts in the Gulf of Mexico during the Brine Disposal project, 18 September 1980 - 01 March 1981 (NODC Accession 8100555)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, temperature, and salinity data were collected using moored current meter casts in the Gulf of Mexico from September 18, 1980 to March 1, 1981....

  3. Current direction, temperature, and salinity data from moored current meter casts in the Gulf of Mexico during the Brine Disposal project, 01 June 1983 - 01 September 1983 (NODC Accession 8400050)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, temperature, and salinity data were collected using moored current meter casts in the Gulf of Mexico from June 1, 1983 to September 1, 1983. Data...

  4. Current components, physical, and other data from moored current meters and CTD casts from NOAA Ship Discoverer and other platforms from the NE Pacific (limit-180) from 1994-04-22 to 1995-08-20 (NODC Accession 9500150)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current components, physical, and other data from moored current meters and CTD casts from NOAA Ship DISCOVERER and other platforms from the NE Pacific (limit-180)....

  5. Current direction, temperature, and salinity data from moored current meter casts in the Gulf of Mexico during the Brine Disposal project, 17 August 1979 - 01 May 1980 (NODC Accession 8100541)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, temperature, and salinity data were collected using moored current meter casts in the Gulf of Mexico from August 17, 1979 to May 1, 1980. Data...

  6. Current direction, temperature, and salinity data from moored current meter casts in the Gulf of Mexico during the Brine Disposal project, 07 February 1981 - 01 June 1982 (NODC Accession 8300040)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, temperature, and salinity data were collected using moored current meter casts in the Gulf of Mexico from February 7, 1981 to June 1, 1982. Data...

  7. Current direction, benthic organisms, and other data from moored current meter casts and other instruments in the Gulf of Mexico during the Brine Disposal project, 01 September 1978 - 19 May 1982 (NODC Accession 8200154)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, benthic organisms, and other data were collected using moored current meter casts in the Gulf of Mexico from July 15, 1980 to March 20, 1981. Data...

  8. Current direction, temperature, depth, and salinity data from moored current meter casts in the Gulf of Mexico during the Brine Disposal project, 01 July 1980 - 01 August 1980 (NODC Accession 8000498)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, temperature, depth, and salinity data were collected using moored current meter casts in the Gulf of Mexico from July 1, 1980 to August 1, 1980....

  9. Current direction, temperature, and salinity data from moored current meter casts in the Gulf of Mexico during the Brine Disposal project, 10 September 1979 - 31 March 1981 (NODC Accession 8100554)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, temperature, and salinity data were collected using moored current meter casts in the Gulf of Mexico from September 10, 1979 to March 31, 1981....

  10. Current direction, temperature, and salinity data from moored current meter casts in the Gulf of Mexico during the Brine Disposal project, 18 October 1982 - 01 August 1983 (NODC Accession 8400010)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, temperature, and salinity data were collected using moored current meter casts in the Gulf of Mexico from October 18, 1982 to August 1, 1983. Data...

  11. Current direction, temperature, and salinity data from moored current meter casts in the Gulf of Mexico during the Brine Disposal project, 11 May 1984 - 01 August 1984 (NODC Accession 8400216)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, temperature, and salinity data were collected using moored current meter casts in the Gulf of Mexico from July 11, 1984 to August 1, 1984. Data...

  12. Current direction, temperature, salinity, and taxonomic code data from moored current meter casts in the Gulf of Mexico during the Brine Disposal project, 18 August 1979 - 21 January 1981 (NODC Accession 8100502)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Temperature, salinity, current direction, and taxonomic data were collected using moored current meter casts in the Gulf of Mexico from August 18, 1979 to January...

  13. Current direction, temperature, and salinity data from moored current meter casts in the Gulf of Mexico during the Brine Disposal project, 31 August 1983 - 01 October 1984 (NODC Accession 8500021)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, temperature, and salinity data were collected using moored current meter casts in the Gulf of Mexico from August 31, 1983 to October 1, 1984. Data...

  14. Temperature, salinity, and current direction data from moored current meter casts in the Gulf of Mexico during the Brine Disposal project, 01 May 1978 - 01 June 1979 (NODC Accession 8000245)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Temperature, salinity, and current direction data were collected using moored current meter casts in the Gulf of Mexico from June 1, 1978 to June 1, 1979. Data were...

  15. Current direction and wind wave spectra data from moored current meter casts in the Gulf of Mexico as part of the Brine Disposal project, 28 June 1978 - 31 December 1978 (NODC Accession 7900128)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, temperature, and wind wave spectra data were collected using moored current meter casts in the Gulf of Mexico from June 28, 1978 to December 31,...

  16. Current direction, fish shellfish resource, and other data from moored current meter casts and other instruments in the Gulf of Mexico during the Brine Disposal project, 21 June 1978 - 24 June 1981 (NODC Accession 8200027)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, fish shellfish resource, and other data were collected using moored current meter casts and other instruments in the Gulf of Mexico from June 18,...

  17. Current direction, zooplankton, phytoplankton, benthic organisms, and other data from moored current meter casts and other instruments in the Gulf of Mexico during the Brine Disposal project, 17 February 1981 - 22 June 1982 (NODC Accession 8200230)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, phytoplankton, zooplankton, benthic organisms, and other data were collected using moored current meter casts and other instruments in the Gulf of...

  18. Current direction, chemical, zooplankton, phytoplankton, and other data from moored current meter casts and other instruments in the Gulf of Mexico during the Buccaneer Oil Field project, 12 December 1975 - 20 May 1980 (NODC Accession 8000461)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, zooplankton, and other data were collected using moored current meter casts and other instruments in the Gulf of Mexico from December 12, 1975 to...

  19. Physical, current, and other data from CTD and current meters from FIXED PLATFORMS in the Bering Sea in support of the Fisheries-Oceanography Coordinated Investigations (FOCI) project from 25 February 1998 to 10 October 2001 (NODC Accession 0000665)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Physical, current, and other data from CTD and current meters from FIXED PLATFORMS in the Bering Sea from 25 February 1998 to 10 October 2001. Data were collected by...

  20. Current direction, chemical, zooplankton, phytoplankton, and other data from moored current meter casts and other instruments in the Gulf of Mexico during the Brine Disposal project, 24 January 1980 - 22 June 1981 (NODC Accession 8100704)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, chemical, phytoplankton, zooplankton, and other data were collected using moored current meter casts and other instruments in the Gulf of Mexico...

  1. Current direction and wind wave spectra data from moored current meter casts in the Gulf of Mexico during the Brine Disposal project, 01 November 1980 - 01 November 1980 (NODC Accession 8100222)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction and wind wave spectra data were collected using moored current meter casts in the Gulf of Mexico from November 1, 1980 to November 1, 1980. Data...

  2. Current direction, wind wave spectra, phytoplankton, and other data from moored current meter casts in the Gulf of Mexico during the Brine Disposal project, 24 September 1977 - 31 May 1981 (NODC Accession 8100612)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, wind wave spectra, phytoplankton, temperature, salinity, and other data were collected using moored current meter casts in the Gulf of Mexico from...

  3. Current direction, phytoplankton, zooplankton, wind wave spectra, and other data from moored current meter casts and other instruments in the Gulf of Mexico during the Brine Disposal project, 07 February 1981 - 01 November 1982 (NODC Accession 8300055)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, phytoplankton, zooplankton, wind wave spectra, and other data were collected using moored current meter casts and other instruments in the Gulf of...

  4. Current meter and bathythermograph data from moored current meter and xbt casts in the North American Coastline-South as part of the Outer Continental Shelf - South Atlantic (OCS-South Atlantic) project from 1982-02-16 to 1985-07-01 (NCEI Accession 8600124)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction and bathythermograph (xbt) data were collected using moored current meter casts and other instruments in the North American Coastline-South from...

  5. Eddy Current Minimizing Flow Plug for Use in Flow Conditioning and Flow Metering

    Science.gov (United States)

    England, John Dwight (Inventor); Kelley, Anthony R. (Inventor)

    2015-01-01

    An eddy-current-minimizing flow plug has open flow channels formed between the plug's inlet and outlet. Each open flow channel includes (i) a first portion that originates at the inlet face and converges to a location within the plug that is downstream of the inlet, and (ii) a second portion that originates within the plug and diverges to the outlet. The diverging second portion is approximately twice the length of the converging first portion. The plug is devoid of planar surface regions at its inlet and outlet, and in fluid flow planes of the plug that are perpendicular to the given direction of a fluid flowing therethrough.

  6. Development of wide range current signal data acquisition system for reactivity meter using Keithley electrometers

    Energy Technology Data Exchange (ETDEWEB)

    Jeong, S. H.; Kim, H. K.; Chio, Y. S.; Kim, M. J.; Woo, J. S. [KAERI, Taejon (Korea, Republic of)

    2001-05-01

    The reactivity worth of control rods is measured to ensure safety every refueling phase in HANARO, the research reactor in KAERI. Two compensated ion chambers are installed around the outer core to measure the reactor power. The signals from CICs enter the reactivity computer system. The reactivity computer system operated on MS-DOS was developed during the commissioning phase. But it is not so user-friendly, is so outdated and difficult to aquire spare parts. Hence we decided to upgrade the system to utilize MS-Windows {sup TM} operating system and object oriented visual program language. This paper describes the data acquisition system developed for the new reactivity computer system operated on MS-Windows{sup TM} operating system. This data acquisition system uses electrometers for converting low current signal to voltage and measures the current signal accurately even though the electrometer change the range of the output automatically. We verified that the system was stable and acquired the input signals accurately.

  7. Eddy current analysis of thin film recording heads

    Science.gov (United States)

    Shenton, D.; Cendes, Z. J.

    1984-03-01

    Due to inherently thin pole tips which enhance the sharpness of read/write pulses, thin-film magnetic recording heads provide a unique potential for increasing disk file capacity. However, the very feature of these heads which makes them attractive in the recording process, namely, their small size, also makes thin-film heads difficult to study experimentally. For this reason, a finite element simulation of the thin-film head has been developed to provide the magnetic field distribution and the resistance/inductance characteristics of these heads under a variety of conditions. A study based on a one-step multipath eddy current procedure is reported. This procedure may be used in thin film heads to compute the variation of magnetic field with respect to frequency. Computations with the IBM 3370 head show that a large phase shift occurs due to eddy currents in the frequency range 1-10 MHz.

  8. Hydraulic jumps within pyroclastic density currents and their sedimentary record

    Science.gov (United States)

    Douillet, G.; Mueller, S.; Kueppers, U.; Dingwell, D. B.

    2013-12-01

    This contribution presents a complete and comprehensive formulation of the hydraulic jump phenomenon and reviews sedimentary structures that may be associated with them. Beginning from the general fluid phenomenon, we then focus on examples from pyroclastic density currents in order to infer dynamic parameters on the parent flows. A hydraulic jump is a fluid dynamics phenomenon that corresponds to the sudden increase of the thickness of a flow accompanied by a decrease of its velocity and/or density. A hydraulic jump is the expression of the transition of the flow from two different flow regimes: supercritical to subcritical. This entrains a change in the energy balance between kinetic energy and gravity potential energy. Recently, the terms of 'pneumatic jumps' have been used for similar phenomenon driven within a gas phase, and granular jumps for dense granular flows. It is thought that such strong changes in the flow conditions may leave characteristic structures in the sedimentary record. Indeed, the main variables influencing the sedimentation rate are the flow velocity, particle concentration and turbulence level, all of them strongly affected by a hydraulic jump. Structures deposited by hydraulic/pneumatic jumps have been called cyclic steps and chute and pool structures. Chute and pools represent the record of a single supercritical to subcritical transition, whereas cyclic steps are produced by stable trains of hydraulic jumps and subsequent re-accelerations. Pyroclastic density currents (PDCs) are gas and pyroclasts flows. As such, they can be subjected to granular and pneumatic jumps and their deposit have often been interpreted as containing records of jumps. Steep sided truncations covered by lensoidal layers have been interpreted as the record of internal jumps within density stratified flows. Fines-depleted breccias at breaks in slope are thought to result from the enhanced turbulence at a jump of the entire flow. Sudden increases in thickness of

  9. Electronic Health Record (EHR and Cloud Security: The Current Issues

    Directory of Open Access Journals (Sweden)

    Emmanuel Kusi Achampong

    2014-02-01

    Full Text Available With the advent of the cloud computing and its associated challenges, building a secured electronic health record (EHR in a cloud computing environment has attracted a lot of attention in both healthcare industry and academic community. Cloud computing concept is becoming a popular information technology (IT infrastructure for facilitating EHR sharing and integration. In this study we discuss security concepts related to EHR sharing and integration in healthcare clouds and analyse the arising security and privacy issues in access and management of EHRs. This paper focus on the current challenges that comes with the use of the cloud computing for EHR purposes.

  10. EMMNet: sensor networking for electricity meter monitoring.

    Science.gov (United States)

    Lin, Zhi-Ting; Zheng, Jie; Ji, Yu-Sheng; Zhao, Bao-Hua; Qu, Yu-Gui; Huang, Xu-Dong; Jiang, Xiu-Fang

    2010-01-01

    Smart sensors are emerging as a promising technology for a large number of application domains. This paper presents a collection of requirements and guidelines that serve as a basis for a general smart sensor architecture to monitor electricity meters. It also presents an electricity meter monitoring network, named EMMNet, comprised of data collectors, data concentrators, hand-held devices, a centralized server, and clients. EMMNet provides long-distance communication capabilities, which make it suitable suitable for complex urban environments. In addition, the operational cost of EMMNet is low, compared with other existing remote meter monitoring systems based on GPRS. A new dynamic tree protocol based on the application requirements which can significantly improve the reliability of the network is also proposed. We are currently conducting tests on five networks and investigating network problems for further improvements. Evaluation results indicate that EMMNet enhances the efficiency and accuracy in the reading, recording, and calibration of electricity meters.

  11. Arctic Ice Dynamics Joint Experiment 1975-1976, Physical Oceanography Data Report Profiling Current Meter Data. Volume 3. Camp Snowbird.

    Science.gov (United States)

    1980-02-01

    Savonius rotor, directional vane and pressure sensor. The unit was raised and lowered at 5 meters per minute by an electric A. . . . .. .. ... .. -m...all of the camps was the sluggishness of the Savonius rotor when compared with the Savonius rotors of the higher quality Hydro Products fixed-mast...indicates a high degree of correlation be- tween the two Savonius rotors. Figure 6 shows a typical regression diagram used in the calibration of the speed

  12. Comparison of broad band time series recorded parallel by FGI type interferometric water level and Lippmann type pendulum tilt meters at Conrad observatory, Austria

    Science.gov (United States)

    Ruotsalainen, Hannu; Papp, Gabor; Leonhardt, Roman; Ban, Dora; Szücs, Eszter; Benedek, Judith

    2016-04-01

    The Finnish Geodetic Institute (FGI) the progenitor of Finnish Geospatial Research Institute of NLS designed and built a 5.5m long prototype of interferometric water level tiltmeter (iWT) in early 2014. Geodetic and Geophysical Institute (GGI), Sopron, Hungary bought the instrument and started tilt measurement in August 2014 at the Conrad observatory (COBS), Austria to monitor geodynamical phenomena like microseisms, free oscillations of the Earth, earth tides, mass loading effects and crustal deformations in cooperation with Austrian Central Institute for Meteorology and Geodynamics (ZAMG) and the FGI. On the July 16 2015 a Lippmann-type 2D tilt sensor (LTS) was also installed by GGI on the 6 m long pier where iWT was set up previously. This situation opens a possibility to do broad band (from secular to seismic variations up to 15 Hz) geophysical signal analysis comparing the responses of long (several meters) and short (a few decimeters) base instruments implementing different physical principles (relative height change of a level surface and inclination change of the plumb line). The characteristics of the sensors are studied by the evaluation of the spectra of recorded signals dominated by microseisms. The iWT has internal interferometric calibration and it can be compared to Lippmanns tilt meter one. Both instruments show good long term ( > 1 day) stability when earth tides and ocean and air mass loading tilts are modelled.

  13. Automatic Meter Reading and Theft Control System by Using GSM

    Directory of Open Access Journals (Sweden)

    P. Rakesh Malhotra

    2013-04-01

    Full Text Available This paper deals with automatic meter reading and theft control system in energy meter. Current transformer is used to measure the total power consumption for house or industrial purpose. This recorded reading is transmitted to the electricity board for every 60 days once. For transmitting the reading of energy meter GSM module is used. To avoid theft, infrared sensor is placed in the screw portion of energy meter seal. If the screw is removed from the meter a message is sent to the electricity board. The measuring of energy meter and monitoring of IR sensor is done with a PIC microcontroller.The informative system will be helpful for the electricity board to monitor the entire supply and the correct billing accordingly without any mishap. This model reduces the manual manipulation work andtheft control.

  14. What would be Usain Bolt's 100-meter sprint world record without Tyson Gay? Unintentional interpersonal synchronization between the two sprinters.

    Science.gov (United States)

    Varlet, Manuel; Richardson, Michael J

    2015-02-01

    Despite the desire of athletes to separate themselves from their competitors, to be faster or better, their performance is often influenced by those they are competing with. Here we show that the unintentional or spontaneous interpersonal synchronization of athletes' movements may partially account for such performance modifications. We examined the 100-m final of Usain Bolt in the 12th IAAF World Championship in Athletics (Berlin, 2009) in which he broke the world record, and demonstrate that Usain Bolt and Tyson Gay who ran side-by-side throughout the race spontaneously and intermittently synchronized their steps. This finding demonstrates that even the most optimized individual motor skills can be modulated by the simple presence of another individual via interpersonal coordination processes. It extends previous research by showing that the hard constraints of individual motor performance do not overwhelm the occurrence of spontaneous interpersonal synchronization and open promising new research directions for better understanding and improving athletic performance.

  15. Chemical, phytoplankton, zooplankton, and other data from moored current meter casts and other instruments in the Gulf of Mexico during the Brine Disposal project, 17 April 1980 - 17 July 1981 (NODC Accession 8100731)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, chemical, phytoplankton, zooplankton, and other data were collected using moored current meter casts and other instruments in the Gulf of Mexico...

  16. A Record Holder Female Athlete’s Train ing Loads and its Distribution in Women 400 meter Hurdle Running

    Directory of Open Access Journals (Sweden)

    Sibel DÜNDAR

    2015-07-01

    Full Text Available The purpose of this study was to investigate the effects on 400 mt characteristics of women training load used in the hurdle runnig , the distribution and performance according to the period. At this study female athlete’s, who won second place at the European Champion Clubs' Cup Competitions and had a record - breaking six times in a country, five - year training loads and degrees were investigated. In this study, athlete’s degrees an d training loads were analyzed between the years of 1982 - 1987. Atlete’s best 100m,200m,400m,400m hurdle degrees and some training loads (sprint, andurance, weight lifting were assessed by the means and satandart deviations. Athlete’s sprint and training l oads mean and standard deviation values were calculated as 100 m ( 11.96 ± 0.17 , 200m ( 25.0 ± 0.38 , 400m ( 56.07 ± 0.91 and 400 m hurdle running ( 60.38 ± 1.88 and for the training loads of 0 - 150 m sprint ( 66.85 ± 18.95 m, endurance ( 2 02.55 ± 57.56 miles and weightlifting( 151.88 ± 68.2 tons. It was observed that percentage of change of the value of training loads and the running performance changes were not increase at the same rate. Regarding the relationship between the best run ning degree and training load, it was found a significant relationship between only 60 m sprint and 150 - 450 m sprint degrees.

  17. Power spectra of currents off Bombay

    Digital Repository Service at National Institute of Oceanography (India)

    Varkey, M.J.

    Current measurements were carried out using a recording current meter across the continental shelf off Bombay, Maharashtra, India at 4 stations from an anchored ship. Power spectra were computed for selected lengths of records. Spectral energy...

  18. Whole-cell recordings of calcium and potassium currents in acutely isolated smooth muscle cells

    Institute of Scientific and Technical Information of China (English)

    Qing Cai; Zhong-Liang Zhu; Xiao-Li Fan

    2006-01-01

    AIM: To record calcium and potassium currents in acutely isolated smooth muscle cells of mesenteric arterial branches in rats.METHODS: Smooth muscle cells were freshly isolated by collagenase digest and mechanical trituration with polished pipettes. Patch clamp technique in whole-cell mode was employed to record calcium and potassium currents.RESULTS: The procedure dissociated smooth muscle cells without impairing the electrophysiological characteristics of the cells. The voltage-gated Ca2+ and potassium currents were successfully recorded using whole-cell patch clamp configuration.CONCLUSION: The method dissociates smooth muscle cells from rat mesenteric arterial branches. Voltage-gated channel currents can be recorded in this preparation.

  19. Current meter components and other data from FIXED PLATFORMS from Gulf of Guinea and other locations as part of the Equatorial Pacific Ocean Climate Studies (EPOCS) and other projects from 08 July 1976 to 01 April 1982 (NODC Accession 9000067)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter components data were collected from FIXED PLATFORMS in the Gulf of Guinea and other locations from 08 July 1976 to 01 April 1982. Data were collected...

  20. Wind and temperature data from current meter in the TOGA - Pacific Ocean (30 N to 30 S) as part of the Equatorial Pacific Ocean Climate Studies (EPOCS), 28 May 1994 to 21 March 1995 (NODC Accession 9800041)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Wind and temperature data were collected using current meter in the TOGA Area - Pacific Ocean (30 N to 30 S) from May 28, 1994 to March 21, 1995. Data were submitted...

  1. Current meter components and other data from FIXED PLATFORMS as part of the World Ocean Circulation Experiment (WOCE) from 26 February 1992 to 14 April 1993 (NODC Accession 9700264)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter components data were collected from FIXED PLATFORMS. Data were collected by Oregon State University (OSU) as part of the World Ocean Circulation...

  2. Chemical, benthic organisms, zooplankton, marine toxic substances, and other data from moored current meter casts and other instruments in the Gulf of Mexico during the Brine Disposal project, 30 August 1979 - 21 September 1981 (NODC Accession 8200012)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Chemical, marine toxic substances, benthic organisms, zooplankton, and other data were collected using moored current meter casts and other instruments in the Gulf...

  3. Marine chemistry, fish / shell-fish surveys, benthic organisms, and marine toxic substances and pollutants data from current meter and other instruments in the Gulf of Mexico from 26 January 1993 to 13 June 1994 (NODC Accession 9500088)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Marine chemistry, fish / shell-fish surveys, benthic organisms, and marine toxic substances and pollutants data were collected using current meter and other...

  4. Chemical, zooplankton, phytoplankton, and other data from moored current meter casts and other instruments in the Gulf of Mexico during the Brine Disposal project, 07 September 1982 - 30 November 1982 (NODC Accession 8300075)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Chemical, phytoplankton, zooplankton, and other data were collected using moored current meter casts and other instruments in the Gulf of Mexico from September 7,...

  5. Chemical, zooplankton, phytoplankton, and other data from moored current meter casts and other instruments in the Gulf of Mexico during the Brine Disposal project, 17 February 1981 - 27 May 1982 (NODC Accession 8200183)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Chemical, phytoplankton, zooplankton, and other data were collected using moored current meter casts and other instruments in the Gulf of Mexico from February 17,...

  6. Current and other data from meters attached to fixed platforms in the Beaufort Sea as part of the Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 16 May 1978 to 01 November 1978 (NODC Accession 8100005)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current and other data were collected from meters attached to fixed platforms in the Beaufort Sea by the University of Alaska - Fairbanks (UAF). Data were collected...

  7. Current meter - direction and other data from the PIERCE in support of the Outer Continental Shelf - South Atlantic project from 23 October 1974 to 09 November 1974 (NODC Accession 7800778)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter - direction and other data were collected from the PIERCE from 23 October 1974 to 09 November 1974. Data were collected by Atlantic Oceanographic and...

  8. Water physics and chemistry data from moored current meter and bottle casts in the Coastal Waters of New Jersey as part of the Mesa New York Bight (MESA - NYB) project, 27 August 1973 - 27 November 1974 (NODC Accession 7600777)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Water physics and chemistry data were collected using moored current meter and bottle casts in the Coastal Waters of New Jersey from August 27, 1973 to November 7,...

  9. Water physics and chemistry data from moored current meter and bottle casts in the Coastal Waters of New Jersey as part of the Mesa New York Bight (MESA - NYB) project, 21 May 1963 - 08 July 1975 (NODC Accession 7601561)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Water physics and chemistry data were collected using moored current meter and bottle casts in the Coastal Waters of New Jersey from May 21, 1963 to July 8, 1975....

  10. Water physics and chemistry data from moored current meter and bottle casts in the Northwest Atlantic Ocean as part of the North East Monitoring Program (NEMP) project, 03 June 1981 - 09 June 1981 (NODC Accession 8100724)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Water physics and chemistry data were collected using moored current meter and bottle casts in the Northwest Atlantic Ocean from June 3, 1981 to June 9, 1981. Data...

  11. Water physics and chemistry data from moored current meter and bottle casts in the Coastal Waters of New Jersey as part of the Mesa New York Bight (MESA - NYB) project, 08 March 1974 - 13 May 1974 (NODC Accession 7501210)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Water physics and chemistry data were collected using moored current meter and bottle casts in the Coastal Waters of New Jersey from March 8, 1974 to May 13, 1974....

  12. Water physics and chemistry data from moored current meter and bottle casts in the Northwest Atlantic Ocean as part of the North East Monitoring Program (NEMP) project, 27 July 1982 - 02 August 1982 (NODC Accession 8400002)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Water physics and chemistry data were collected using moored current meter and bottle casts in the Northwest Atlantic Ocean from July 27, 1982 to August 2, 1982....

  13. Water physics and chemistry data from moored current meter and bottle casts in the Northwest Atlantic Ocean as part of the North East Monitoring Program (NEMP) project, 15 April 1981 - 20 April 1981 (NODC Accession 8100656)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Water physics and chemistry data were collected using moored current meter and bottle casts in the Northwest Atlantic Ocean from April 15, 1981 to April 20, 1981....

  14. Current meter - direction and other data from FIXED PLATFORMS in support of the MESA PUGET SOUND/PSERP (MESA-PS) project from 03 September 1975 to 11 November 1975 (NODC Accession 7800018)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter - direction and other data were collected from FIXED PLATFORMS from 03 September 1975 to 11 November 1975. Data were collected by the National Ocean...

  15. Water physical and chemical data from current meter and bottle casts from the COLUMBUS ISELIN as part of the Ocean Continental Shelf - Mid Atlantic (OCS - Mid Atlantic) project, 27 October 1975 - 06 November 1975 (NODC Accession 7700454)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Water physical and chemical data were collected using current meter and bottle casts from the COLUMBUS ISELIN from October 27, 1975 to November 6, 1975. Data were...

  16. Salinity, sigma-t, and temperature data from moored current meter and CTD casts in the North Atlantic Ocean from 29 August 1981 - 07 December 1981 (NODC Accession 8300048)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Salinity, sigma-t, and temperature data were collected using moored current meter and CTD casts in the North Atlantic Ocean from August 29, 1981 to December 7, 1981....

  17. Water physics and chemistry data from moored current meter and bottle casts in the Gulf of Mexico as part of the Brine Disposal project, 04 December 1979 - 11 June 1980 (NODC Accession 8000476)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Water physics and chemistry data were collected using moored current meter and bottle casts in the Gulf of Mexico from December 4, 1979 to June 11, 1980. Data were...

  18. Chemical, benthic organisms, and other data from moored current meter casts and other instruments in the Gulf of Mexico during the Gulf of Mexico North Continental Slope Study (MNCSS) project, 11 November 1983 - 13 November 1984 (NODC Accession 8400119)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Chemical, benthic organisms, and other data were collected using moored current meter casts and other instruments in the Gulf of Mexico from November 11, 1983 to...

  19. Current meter and other data from NOAA Ship RESEARCHER and other platforms from the North Atlantic Ocean and others locations from 1979-10-20 to 1981-05-01 (NCEI Accession 8600256)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter data were collected from NOAA Ship RESEARCHER and other platforms in the North Atlantic Ocean and others locations from 20 October 1979 to 01 May 1981....

  20. Wind wave spectra and other data from moored current meter casts and other instruments in the Gulf of Mexico as part of the Brine Disposal project, 22 September 1979 - 01 May 1980 (NODC Accession 8000462)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Wind wave spectra and other data were collected using moored current meter casts and other instruments in the Gulf of Mexico from September 22, 1979 to May 1, 1980....

  1. Wind wave spectra data from moored current meter and bottle casts in the Gulf of Mexico as part of the Brine Disposal project, 26 July 1978 - 21 May 1979 (NODC Accession 8000225)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Wind wave spectra data were collected using moored current meter and moored buoy casts in the Gulf of Mexico from September 22, 1978 to May 21, 1979. Data were...

  2. Temperature, wind direction, and salinity data from moored current meter casts in the Gulf of Mexico during the Brine Disposal project, 01 January 1981 - 01 January 1981 (NODC Accession 8100474)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Temperature, wind direction, and salinity data were collected using moored current meter casts in the Gulf of Mexico from January 1, 1981 to January 1, 1981. Data...

  3. Current and other data from meters attached to fixed platforms in the Beaufort Sea as part of the Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 08 August 1977 to 01 September 1977 (NODC Accession 8000055)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current and other data were collected from meters attached to fixed platforms in the Beaufort Sea by the University of Alaska, Fairbanks (UAF). Data were collected...

  4. Water physical and chemical data from current meter and bottle casts from the GILLISS as part of the Ocean Continental Shelf - Mid Atlantic (OCS - Mid Atlantic) project, 04 February 1976 - 14 September 1976 (NODC Accession 7700477)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Water physical and chemical data were collected using current meter and bottle casts from the GILLISS and other platforms from February 4, 1976 to September 14,...

  5. Water physical and chemical data from current meter and bottle casts from the G.W. PIERCE as part of the Ocean Continental Shelf - Mid Atlantic (OCS - Mid Atlantic) project, 22 October 1975 - 31 October 1975 (NODC Accession 8200067)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Water physical and chemical data were collected using current meter and bottle casts from the G.W. PIERCE from October 22, 1975 to October 31, 1975. Data were...

  6. Water physics and chemistry data from moored current meter and bottle casts in the Northwest Atlantic Ocean as part of the North East Monitoring Program (NEMP) project, 02 September 1980 - 06 September 1980 (NODC Accession 8100628)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Water physics and chemistry data were collected using moored current meter and bottle casts in the Northwest Atlantic Ocean from September 2, 1980 to September 6,...

  7. Water physics and chemistry data from moored current meter and bottle casts in the Northwest Atlantic Ocean as part of the North East Monitoring Program (NEMP) project, 28 May 1982 - 04 June 1982 (NODC Accession 8300008)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Water physics and chemistry data were collected using moored current meter and bottle casts in the Northwest Atlantic Ocean from May 28, 1982 to June 4, 1982. Data...

  8. Temperature and salinity data from moored current meter and bottle casts in the Gulf of Mexico as part of the Brine Disposal project, 15 September 1977 - 19 December 1977 (NODC Accession 7800318)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Temperature and salinity data were collected using moored current meter and bottle casts in the Gulf of Mexico from September 15, 1977 to January 19, 1977. Data were...

  9. Current meter components and other data from fixed platforms from TOGA Area - Pacific (30 N to 30 S) from 12 December 1986 to 28 March 1991 (NODC Accession 9200261)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter components data were collected from fixed platforms from the TOGA Area - Pacific (30 N to 30 S) from 12 December 1986 to 28 March 1991. Data were...

  10. Chemical, phytoplankton, zooplankton, benthic organisms, and other data from moored current meter casts and other instruments in the Gulf of Mexico during the Brine Disposal project, 12 February 1981 - 05 January 1982 (NODC Accession 8200064)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Chemical, phytoplankton, benthic organisms, zooplankton, and other data were collected using moored current meter casts and other instruments in the Gulf of Mexico...

  11. Physical, taxonomic code, and other data from current meter and other instruments in New York Bight from DOLPHIN and other platforms; 14 March 1971 to 03 August 1975 (NODC Accession 7601385)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Physical, taxonomic code, and other data were collected using current meter and other instruments from DOLPHIN and other platforms in New York Bight. Data were...

  12. Moored current meter data collected from the Bering Sea in support of the Fisheries Oceanography Cooperative Investigations (FOCI) project from 12 September 1995 to 16 September 1996 (NODC Accession 0000674)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Moored current meter data were collected from the Bering Sea from September 12, 1995 to September 16, 1996. Data were collected by the Pacific Marine Environmental...

  13. Current and other data from meters on fixed platforms as part of the Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 13 November 1980 to 03 June 1981 (NODC Accession 8400019)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current and other data were collected from meters on fixed platforms from 13 November 1980 to 03 June 1981. Data were collected by Science Applications, Inc. (SAI)...

  14. Chemical data from moored current meter, bottle casts, and other instruments in the Coastal Waters of New Jersey as part of the Mesa New York Bight (MESA - NYB) project, 18 May 1978 - 19 October 1978 (NODC Accession 7900280)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Chemical data were collected using moored current meter, bottle casts, and other instruments in the Coastal Waters of New Jersey from May 18, 1978 to October 19,...

  15. Temperature, current meter, and other data from moored buoy from the HUMBOLDT as part of the GARP (Global Atmospheric Research Program) Atlantic Tropical Experiment (GATE) project, 28 July 1974 - 18 August 1974 (NODC Accession 7601676)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Temperature, current meter, and other data were collected using moored buoy from the HUMBOLDT from July 28, 1974 to August 18, 1974. Data were submitted by US Coast...

  16. Current meter components and other data from fixed platforms from the East China Sea (Tung Hai) as part of the United States/Peoples Republic of China Cooperative Study from 03 June 1980 to 04 August 1981 (NODC Accession 8700311)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter components data were collected from fixed platforms from the East China Sea (Tung Hai) from 03 June 1980 to 04 August 1981. Data were collected by the...

  17. Chemical, zooplankton, and marine toxic substances data from moored current meter casts and other instruments in the Gulf of Mexico during the Brine Disposal project, 02 June 1978 - 02 June 1979 (NODC Accession 8000002)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Chemical, zooplankton, and marine toxic substances data were collected using moored current meter casts and other instruments in the Gulf of Mexico from June 2, 1978...

  18. Chemical data from moored current meter, bottle casts, and other instruments in the Gulf of Mexico during the Brine Disposal project, 23 June 1978 - 30 June 1978 (NODC Accession 7900006)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Chemical data were collected using moored current meter, bottle casts, and other instruments in the Gulf of Mexico from June 18, 1978 to June 24, 1981. Data were...

  19. CTD, current meter, meteorological buoy, and bottle data from the Gulf of Mexico from the ALPHA HELIX and other platforms in support of LATEX A from 18 March 1993 to 23 September 1993 (NODC Accession 9400149)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CTD, current meter, meteorological buoy, and bottle data were collected from the Gulf of Mexico from the ALPHA HELIX and other platforms. Data were collected by...

  20. Water physics and chemistry data from moored current meter and bottle casts in the New York Bight as part of the North East Monitoring Program (NEMP) project, 10 April 1984 - 31 October 1984 (NODC Accession 8500225)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Water physics and chemistry data were collected using moored current meter and bottle casts in the New York Bight from April 10, 1984 to October 31, 1984. Data were...

  1. Water physics and chemistry data from moored current meter and bottle casts in the Coastal Waters of New Jersey as part of the Mesa New York Bight (MESA - NYB) project, 05 November 1973 to 06 June 1974 (NODC Accession 7500931)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Water physics and chemistry data were collected using moored current meter and bottle casts in the Coastal Waters of New Jersey from November 5, 1973 to June 6,...

  2. Current meter components and other data from FIXED PLATFORMS in support of the Processes and Resources of the Bering Sea Shelf (PROBES) project from 27 April 1977 to 01 November 1978 (NODC Accession 8400221)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter components data were collected from FIXED PLATFORMS from 22 February 1992 to 18 February 1993. Data were collected by the University of Alaska -...

  3. Current meter and other data from fixed platforms as part of the International Decade of Ocean Exploration / Coastal Upwelling Ecosystems Analysis (IDOE/CUEA) from 01 July 1972 to 01 August 1972 (NODC Accession 7500614)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter and other data were collected from fixed platforms from 01 July 1972 to 01 August 1972. Data were collected by the Pacific Marine Environmental...

  4. Current meter components and other data from FIXED PLATFORMS in support of the Physical Oceanography Field Program Offshore North Carolina from 22 February 1992 to 18 February 1993 (NODC Accession 9300089)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter components data were collected from FIXED PLATFORMS from 22 February 1992 to 18 February 1993. Data were collected by the Science Applications, Inc....

  5. Current and other data from meters attached to fixed platforms in the North Pacific as part of the Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 20 April 1976 to 24 July 1976 (NODC Accession 7800688)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current and other data were collected from meters attached to fixed platforms in the North Pacific by the University of Alaska - Fairbanks; Institute of Marine...

  6. Current meter components and other data from fixed platforms from the Straits of Florida in support of the Southeast Florida and Caribbean Recruitment Program (SEFCAR) from 08 April 1989 to 21 November 1994 (NODC Accession 9600059)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter components data were collected from fixed platforms in the Straits of Florida from 08 April 1989 to 21 November 1994. Data were collected by the...

  7. Current and other data from meters attached to FIXED PLATFORMS in the coastal waters of Florida in support of the Subtropical Atlantic Climate Study 3 (STACS) from 10 November 1980 to 07 June 1983 (NODC Accession 8800120)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current and other data from meters attached to FIXED PLATFORMS in the coastal waters of Florida. Data were collected by University of Miami; Rosenstiel School of...

  8. Current and other data from meters attached to FIXED PLATFORMS in the coastal waters of Florida in support of the Subtropical Atlantic Climate Study 4 (STACS) from 08 June 1983 to 13 December 1983 (NODC Accession 8700019)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current and other data from meters attached to FIXED PLATFORMS in the coastal waters of Florida. Data were collected by University of Miami; Rosenstiel School of...

  9. Current and other data from meters attached to FIXED PLATFORMS in the coastal waters of Florida in support of the Subtropical Atlantic Climate Study 6 (STACS) from 19 June 1984 to 27 March 1987 (NODC Accession 8900060)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current and other data from meters attached to FIXED PLATFORMS in the coastal waters of Florida. Data were collected by University of Miami; Rosenstiel School of...

  10. Wind wave spectra data from moored current meter and bottle casts in the Gulf of Mexico as part of the Brine Disposal project, 01 October 1978 - 01 October 1980 (NODC Accession 8000619)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Wind wave spectra data were collected using moored current meter and moored buoy casts in the Gulf of Mexico from October 1, 1980 to October 1, 1980. Data were...

  11. Current meter - direction and other data from FIXED PLATFORMS in support of the MESA New York Bight (MESA-NYB) project from 30 November 1976 to 25 April 1977 (NODC Accession 7700712)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter - direction and other data were collected from FIXED PLATFORMS from 30 November 1976 to 25 April 1977. Data were collected by the National Ocean...

  12. Current meter - direction and other data from FIXED PLATFORMS in support of the MESA New York Bight (MESA-NYB) project from 15 December 1977 to 19 March 1978 (NODC Accession 7900293)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter - direction and other data were collected from FIXED PLATFORMS from 15 December 1977 to 19 March 1978. Data were collected by Dames and Moore, Inc. -...

  13. Current meter - direction and other data from FIXED PLATFORMS in support of the MESA New York Bight (MESA-NYB) project from 25 September 1978 to 11 July 1979 (NODC Accession 7900330)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter - direction and other data were collected from FIXED PLATFORMS from 25 September 1978 to 11 July 1979. Data were collected by the National Ocean...

  14. Current meter - direction and other data from FIXED PLATFORMS in support of the MESA New York Bight (MESA-NYB) project from 03 April 1979 to 11 July 1979 (NODC Accession 8000011)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter - direction and other data were collected from FIXED PLATFORMS from 03 April 1979 to 11 July 1979. Data were collected by the National Ocean Service...

  15. CTD, current meter, pressure gauge, and wave spectra data from fixed platforms and other platforms from the Coastal Waters of California as part of the Santa Barbara Channel project from 27 April 1983 to 04 January 1985 (NODC Accession 8500177)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CTD, current meter, pressure gauge, and wave spectra data were collected from fixed platforms and other platforms from the Coastal Waters of California from 27 April...

  16. Current meter - direction and other data from FIXED PLATFORMS in support of the MESA New York Bight (MESA-NYB) project from 27 October 1975 to 14 August 1976 (NODC Accession 7700083)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter - direction and other data were collected from FIXED PLATFORMS from 27 October 1975 to 14 August 1976. Data were collected by the National Ocean...

  17. Current meter - direction and other data from FIXED PLATFORMS in support of the MESA PUGET SOUND/PSERP (MESA-PS) project from 26 September 1974 to 14 April 1975 (NODC Accession 7601210)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter - direction and other data were collected from FIXED PLATFORMS from 26 September 1974 to 14 April 1975. Data were collected by the National Ocean...

  18. Current meter - direction and other data from FIXED PLATFORMS in support of the MESA New York Bight (MESA-NYB) project from 25 July 1978 to 16 October 1978 (NODC Accession 7900246)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter - direction and other data were collected from FIXED PLATFORMS from 25 July 1978 to 16 October 1978. Data were collected by the National Ocean Service...

  19. Current meter - direction and other data from FIXED PLATFORMS in support of the MESA New York Bight (MESA-NYB) project from 03 November 1977 to 31 January 1978 (NODC Accession 7800572)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter - direction and other data were collected from FIXED PLATFORMS from 03 November 1977 to 31 January 1978. Data were collected by the National Ocean...

  20. Current meter - direction and other data from FIXED PLATFORMS in support of the Southern Coastal Plains Expedition (SCOPE) from 13 February 1972 to 24 April 1973 (NODC Accession 7500583)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter - direction and other data were collected from FIXED PLATFORMS from 13 February 1972 to 24 April 1973. Data were collected by the National Ocean...

  1. Current meter - direction and other data from FIXED PLATFORMS in support of the MESA New York Bight (MESA-NYB) project from 30 January 1978 to 27 July 1978 (NODC Accession 7900077)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter - direction and other data were collected from FIXED PLATFORMS from 30 January 1978 to 27 July 1978. Data were collected by the National Ocean Service...

  2. Temperature, wind direction, and salinity data from moored current meter casts in the Gulf of Mexico during the Brine Disposal project, 01 December 1980 - 01 December 1980 (NODC Accession 8100457)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Temperature, wind direction, and salinity data were collected using moored current meter casts in the Gulf of Mexico from December 1, 1980 to December 1, 1980. Data...

  3. Current meter - direction and other data from FIXED PLATFORMS in support of the MESA New York Bight (MESA-NYB) project from 01 April 1974 to 25 September 1974 (NODC Accession 7700207)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter - direction and other data were collected from FIXED PLATFORMS from 01 April 1974 to 25 September 1974. Data were collected by the National Ocean...

  4. Current meter - direction and other data from FIXED PLATFORMS in support of the MESA New York Bight (MESA-NYB) project from 13 August 1976 to 01 December 1976 (NODC Accession 7700640)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter - direction and other data were collected from FIXED PLATFORMS from 13 August 1976 to 01 December 1976. Data were collected by the National Ocean...

  5. Current meter - direction and other data from FIXED PLATFORMS in support of the MESA New York Bight (MESA-NYB) project from 24 February 1975 to 01 May 1975 (NODC Accession 7700554)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter - direction and other data were collected from FIXED PLATFORMS from 24 February 1975 to 01 May 1975. Data were collected by the National Ocean Service...

  6. Wind wave spectra data from moored current meter and bottle casts in the Gulf of Mexico as part of the Brine Disposal project, 01 September 1980 - 01 September 1980 (NODC Accession 8000594)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Wind wave spectra data were collected using moored current meter and moored buoy casts in the Gulf of Mexico from September 1, 1980 to September 1, 1980. Data were...

  7. Wind wave spectra data from moored current meter and bottle casts in the Gulf of Mexico as part of the Brine Disposal project, 01 July 1980 - 01 August 1980 (NODC Accession 8000496)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Wind wave spectra data were collected using moored current meter and moored buoy casts in the Gulf of Mexico from July 1, 1980 to August 1, 1980. Data were submitted...

  8. Water physics and chemistry data from moored current meter and bottle casts in the Coastal Waters of New Jersey as part of the Mesa New York Bight (MESA - NYB) project, 10 April 1978 - 09 August 1978 (NODC Accession 7900249)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Water physics and chemistry data were collected using moored current meter and bottle casts in the Coastal Waters of New Jersey from April 10, 1978 to August 9,...

  9. Water physics and chemistry data from moored current meter and bottle casts in the Coastal Waters of New Jersey as part of the Mesa New York Bight (MESA - NYB) project from 12 April 1976 - 13 September 1976 (NODC Accession 7700770)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Water physics and chemistry data were collected using moored current meter and bottle casts in the Coastal Waters of New Jersey from April 12, 1976 to September 13,...

  10. Water physics and chemistry data from moored current meter and bottle casts in the Coastal Waters of New Jersey as part of the Mesa New York Bight (MESA - NYB) project, 09 April 1979 - 23 August 1979 (NODC Accession 8100440)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Water physics and chemistry data were collected using moored current meter and bottle casts in the Coastal Waters of New Jersey from April 9, 1979 to August 23,...

  11. Water physics and chemistry data from moored current meter and bottle casts in the Northwest Atlantic Ocean as part of the North East Monitoring Program (NEMP) project, 21 April 1980 - 18 July 1980 (NODC Accession 8100501)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Water physics and chemistry data were collected using moored current meter and bottle casts in the Northwest Atlantic Ocean from April 21, 1980 to July 18, 1980....

  12. Current and other data from meters on fixed platforms in the Bering Sea as part of the Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 09 September 1989 to 07 October 1990 (NODC Accession 9300020)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current and other data were collected from meters on fixed platforms in the Bering Sea from 09 September 1989 to 07 October 1990. Data were collected by the Pacific...

  13. Current and other data from meters attached to fixed platforms as part of the Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 16 September 1978 to 17 August 1979 (NODC Accession 8100550)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current and other data were collected from meters attached to fixed platforms by the University of Alaska - Fairbanks; Institute of Marine Science (UAK/IMS). Data...

  14. Current meter - direction and other data from FIXED PLATFORMS in support of the MESA New York Bight (MESA-NYB) project from 17 October 1974 to 20 November 1975 (NODC Accession 7700291)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter - direction and other data were collected from FIXED PLATFORMS from 17 October 1974 to 20 November 1975. Data were collected by the National Ocean...

  15. Physical, meteorological, wave spectra, and other data from CTD casts and current meters aboard NOAA Ship McARTHUR in the Columbia River (Wash./Oregon) from 1981-05-06 to 1981-11-25 (NCEI Accession 8300033)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Physical, meteorological, wave spectra, and other data were collected from CTD casts and current meters from NOAA Ship McARTHUR and other platforms in the Columbia...

  16. Temperature, current meter, and other data from moored buoy as part of the GARP (Global Atmospheric Research Program) Atlantic Tropical Experiment (GATE) project, 30 July 1974 - 14 August 1974 (NODC Accession 7601675)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Temperature, current meter, and other data were collected using moored buoy from the CAPRICORNE from July 30, 1974 to August 14, 1974. Data were collected as part of...

  17. Current meter components and other data from FIXED PLATFORMS from NW Pacific (limit-180) in support of the Emperor Seamount Experiment from 28 June 1982 to 01 November 1983 (NODC Accession 8500287)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter components data were collected from FIXED PLATFORMS in the NW Pacific (limit-180) from 28 June 1982 to 01 November 1983 . Data were collected by the...

  18. Current meter components and other data from FIXED PLATFORMS as part of the World Ocean Circulation Experiment (WOCE) from 03 January 1991 to 06 December 1992 (NODC Accession 9700217)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter components data were collected from FIXED PLATFORMS from 03 January 1991 to 06 December 1992. Data were collected by the Universitaet Kiel as part of...

  19. Temperature profile and other data collected using current meter from the CHAIN from the Atlantic Ocean in part of the International Decade of Ocean Exploration / Mid-Ocean Dynamics Experiment from 12 February 1969 to 16 March 1972 (NODC Accession 7601355)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Temperature profile, current meter, and wind speed/direction data were collected using current meter from the TRIDENT, KNORR, and BILLIE 2 in the Atlantic Ocean from...

  20. Synoptic Field Measurements In The Ems Estuary Combining Adcp, Multi Sensor Equipped Current Meter and Gauge Data

    Science.gov (United States)

    Jensen, J.; Frank, T.; Mudersbach, Ch.

    The estuary of the Ems River is located in the north-west of Germany and forms partly the border line between the Netherlands and Germany. Between the lower Ems River and the outer estuary to the North Sea a brackish shallow water basin of mesohalin characteristics is located - the Dollart. The surface area ist about 100 km2 and the only barrier which separates the Dollart from the Ems navigation channel is a sand split with a riprap training works. This barrier is only partially effective and during the flood phase water exchange takes place. Prior to the commission of the currently constructed Ems barrier a synoptic, multi- institutional field measuring effort has been undertaken in March 2001. The purpose was a) to reach a more in depth understanding of the exchange situation between Dollart and the Ems river regarding discharge as well as salinity and oxygen content. b) To get a basis for assessment of potential impacts of the future operation of the Ems Barrier. In several measuring profiles ship-supported ADCP measurements (Acoustic Doppler Current Profiler) for a whole tide cycle were executed. These measurements are com- pleted by data of numerous measuring probes and tide gauges along the lower Ems River, the Ems navigational channel and in the Dollart covering the period of one month. This paper discusses the accomplished survey as well as the compilation of the gath- ered data. Thereby the software "TIDE" of the German Federal Institute of Hydrology (BFG) will be presented. This software is specialised in the assessment and visual- isation of ADCP Data gathered in tidal areas. This presentation concludes with the application of a database management system alongside with a geographical informa- tion system for the storage, visualisation and distribution of the collected data.

  1. Current direction, bathythermograph (xbt), CTD, and other data from moored current meter casts and other instruments in the Coastal Waters of California as part of the North California Coastal Circulation Study (NCCCS) project, 1987-03-09 to 1989-11-01 (NCEI Accession 9000209)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, bathythermograph (xbt), CTD, and other data were collected using moored current meter casts and other instruments in the Coastal Waters of...

  2. Current components, physical, and other data from moored current meters and CTD casts from the J. W. POWELL and other platforms from the Gulf of Mexico as part of the Texas-Louisiana Shelf Circulation and Transport Processes Study (LATEX PART A) from 17 March 1993 to 28 May 1993 (NODC Accession 9400043)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current components, physical, and other data were collected by moored current meters and CTD casts from the J. W. POWELL and other platforms from the Gulf of Mexico...

  3. Current direction and bathythermograph (xbt) data from moored current meter casts and other instruments in the Gulf of Mexico, Northwest Atlantic Ocean, and North American Coastline-South as part the North Carolina Frontal Eddy Dynamics Experiment (FRED) project, 1985-01-23 to 1987-01-31 (NCEI Accession 8900214)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction and bathythermograph (xbt) data were collected using moored current meter casts and other instruments in the Gulf of Mexico, Northwest Atlantic...

  4. Current components, water pressure, physical, and other data from moored current meters, pressure gauges, and CTD casts from CHARTER/FISHING BOATS and other platforms from the Bering Sea - Coastal Waters of Western Alaska and other locations from 14 May 1989 to 06 October 1989 (NCEI Accession 9000278)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current components, water pressure, physical, and other data were collected from moored current meters, pressure gauges, and CTD casts from CHARTER/FISHING BOATS and...

  5. Current direction, bathythermograph (xbt), CTD, and other data from moored current meter casts and other instruments in the Gulf of Mexico during the Gulf of Mexico Physical Oceanography (GMPO) project, 1985-06-11 to 1986-09-03 (NCEI Accession 8700196)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, bathythermograph (xbt), CTD, and other data were collected using moored current meter casts and other instruments in the Mid-Atlantic Bight and NW...

  6. Current components, physical, and other data from moored current meters and CTD casts from NOAA Ship DISCOVERER and other platforms from the NE Pacific (limit-180) as part of the VENTS program from 1985-06-03 to 1991-06-11 (NCEI Accession 9200073)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current components, physical, and other data from moored current meters and CTD casts from NOAA Ship DISCOVERER and other platforms from the NE Pacific (limit-180)....

  7. Current, profile, and other data from current meters and CTD casts from NOAA Ship DISCOVERER and other platforms from the NW Pacific (limit-180) as part of the VENTS program from 1991-06-11 to 1992-06-11 (NCEI Accession 9300078)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current, profile, and other data were collected from current meters and CTD casts from NOAA Ship Discoverer and other platforms from the NW Pacific (limit-180) from...

  8. Current direction, bathythermograph (xbt), CTD, and other data from moored current meter casts and other instruments in the Northwest Atlantic Ocean (limit-40 W) and North American Coastline-South as part of the North Carolina FRontal Eddy Dynamics Experiment (FRED) project, 1987-05-07 to 1987-11-01 (NCEI Accession 8900181)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, bathythermograph (xbt), CTD, and other data were collected using moored current meter casts and other instruments in the Northwest Atlantic Ocean...

  9. Current direction, bathythermograph (xbt), CTD, and other data from moored current meter casts and other instruments in the Gulf of Mexico as part of the Gulf of Mexico Physical Oceanography (GMPO) project, 1987-04-04 to 1988-11-02 (NCEI Accession 8900259)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, bathythermograph (xbt), CTD, and other data were collected using moored current meter casts and other instruments in the Gulf of Mexico from April...

  10. Current direction, bathythermograph (xbt), CTD, and other data from moored current meter casts and other instruments in the Gulf of Mexico during the Gulf of Mexico Physical Oceanography (GMPO) project, 1985-06-11 to 1986-09-03 (NCEI Accession 8900186)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current direction, bathythermograph (xbt), CTD, and other data were collected using moored current meter casts and other instruments in the Gulf of Mexico from June...

  11. First results of Indian - Current meter moorings along The equator: Vertical current structure variability at equator, 93 degrees E during February-December, 2000

    Digital Repository Service at National Institute of Oceanography (India)

    Murty, V.S.N.; Suryanarayana, A.; Sarma, M.S.S.; Tilvi, V.; Fernando, V.; Nampoothiri, G.; Sardar, A.; Gracias, D.; Khalap, S.

    are weak while the low pass filtered (49-hour) current data show considerable meso-scale variability, comprising of Intraseasonal Oscillations (ISO) of period 10-20 day and 40.5 day. The 10-20 day ISO is associated with similar variability in surface wind...

  12. The average direct current offset values for small digital audio recorders in an acoustically consistent environment.

    Science.gov (United States)

    Koenig, Bruce E; Lacey, Douglas S

    2014-07-01

    In this research project, nine small digital audio recorders were tested using five sets of 30-min recordings at all available recording modes, with consistent audio material, identical source and microphone locations, and identical acoustic environments. The averaged direct current (DC) offset values and standard deviations were measured for 30-sec and 1-, 2-, 3-, 6-, 10-, 15-, and 30-min segments. The research found an inverse association between segment lengths and the standard deviation values and that lengths beyond 30 min may not meaningfully reduce the standard deviation values. This research supports previous studies indicating that measured averaged DC offsets should only be used for exclusionary purposes in authenticity analyses and exhibit consistent values when the general acoustic environment and microphone/recorder configurations were held constant. Measured average DC offset values from exemplar recorders may not be directly comparable to those of submitted digital audio recordings without exactly duplicating the acoustic environment and microphone/recorder configurations.

  13. Seismic-induced accelerations detected by two parallel gravity meters in continuous recording with a high sampling rate at Etna volcano

    Directory of Open Access Journals (Sweden)

    P. Stefanelli

    2008-06-01

    Full Text Available We analyse a microgravity data set acquired from two spring LaCoste & Romberg gravity meters operated in parallel at the same site on Etna volcano (Italy for about two months (August – September 2005. The high sampling rate acquisition (2Hz allowed the correlation of short-lasting gravity fluctuations with seismic events. After characterizing the oscillation behavior of the meters, through the study of spectral content and the background noise level of both sequences, we recognized fluctuations in the gravity data, spanning a range of periods from 1 second to about 30 seconds dominated by components with a period of about 15 ÷ 25 seconds, during time intervals encompassing both local seismic events and large worldwide earthquakes. The data analyses demonstrate that observed earthquake-induced gravity fluctuations have some differences due to diverse spectral content of the earthquakes. When local seismic events which present high frequency content excite the meters, the correlation between the two gravity signals is poor (factor < 0.3. Vice versa, when large worldwide earthquakes occur and low frequency seismic waves dominate the ensuing seismic wavefield, the resonance frequencies of the meters are excited and they react according to more common features. In the latter case, the signals from the two instruments are strongly correlated to each other (up to 0.9. In this paper the behaviors of spring gravimeters in the frequency range of the disturbances produced by local and large worldwide earthquakes are presented and discussed.

  14. Soft-sensing, non-intrusive multiphase flow meter

    NARCIS (Netherlands)

    Wrobel, K.; Schiferli, W.

    2009-01-01

    For single phase flow meters more and better non-intrusive or even clamp-on meters become available. This allows for a wider use of meters and for easier flow control. As the demand for multiphase meters is increasing, the current aim is to develop a non-intrusive multiphase flow meter. The non-intr

  15. Arctic Ice Dynamics Joint Experiment 1975-1976, Physical Oceanography Data Report Profiling Current Meter Data. Volume 2. Camp Blue Fox.

    Science.gov (United States)

    1980-02-01

    with a Savonius rotor, directional vane and pressure sensor. The unit was raised and lowered at 5 meters per minute by an electric 8 7i winch. The...sluggishness of the Savonius rotor when compared with the Savonius rotors of the higher quality Hydro Products fixed-mast meters. We feel that this problem...shown that Savonius rotors with free bearings and uniform manufacture do | 11 I not need individual tank testing. A universal calibration curve may

  16. Investigation of Leakage Current Waveforms Recorded in a Coastal High Voltage Substation

    Directory of Open Access Journals (Sweden)

    E. Thalassinakis

    2011-06-01

    Full Text Available Leakage current monitoring is a widely employed technique to monitor the performance of outdoor insulation. The evaluation of leakage current waveforms recorded in the field, offers significant information since insulation’s performance is strongly linked with local conditions, and the waveforms’ shape correlate to different types of surface activity. In this paper, an investigation of leakage current waveforms recorded in a 150 kV coastal Substations suffering which suffers intense marine pollution is presented. Investigation of the recorded waveforms verified the basic waveform shapes described in the literature. Further, several variations of the basic types and complex waveforms, as well as field related waveforms, are presented. The need for added categorization criteria in the case of field measurements is discussed.

  17. Temperature profiles, current components, and other data from XBT casts and current meters from AIRCRAFT and other platforms from the TOGA Area - Atlantic as part of the Seasonal Response of the Equatorial Atlantic Experiment/Francais Ocean Et Climat Dans L'Atlantique Equatorial (SEQUAL/FOCAL) project from 1979-01-16 to 1985-01-01 (NCEI Accession 8700213)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Temperature profiles and current meter data were collected from AIRCRAFT and other platforms in the NW Atlantic (limit-40 W) from 16 January 1979 to 01 January...

  18. Three-dimensional Brain Current Source Reconstruction from Intra-cranial ECoG Recordings

    OpenAIRE

    Zhang, Yingchun; van Drongelen, Wim; Kohrman, Michael; He, Bin

    2008-01-01

    We have investigated 3-dimensional brain current density reconstruction (CDR) from intracranial electrocorticogram (ECoG) recordings by means of finite element method (FEM). The brain electrical sources are modeled by a current density distribution and estimated from the ECoG signals with the aid of a weighted minimum norm estimation algorithm. A series of computer simulations were conducted to evaluate the performance of ECoG-CDR by comparing with the scalp EEG based CDR results. The present...

  19. Freshening of the Alaska Coastal Current recorded by coralline algal Ba/Ca ratios

    Science.gov (United States)

    Chan, Phoebe; Halfar, Jochen; Williams, Branwen; Hetzinger, Steffen; Steneck, Robert; Zack, Thomas; Jacob, Dorrit E.

    2011-03-01

    Arctic Ocean freshening can exert a controlling influence on global climate, triggering strong feedbacks on ocean-atmospheric processes and affecting the global cycling of the world's oceans. Glacier-fed ocean currents such as the Alaska Coastal Current are important sources of freshwater for the Bering Sea shelf, and may also influence the Arctic Ocean freshwater budget. Instrumental data indicate a multiyear freshening episode of the Alaska Coastal Current in the early 21st century. It is uncertain whether this freshening is part of natural multidecadal climate variability or a unique feature of anthropogenically induced warming. In order to answer this, a better understanding of past variations in the Alaska Coastal Current is needed. However, continuous long-term high-resolution observations of the Alaska Coastal Current have only been available for the last 2 decades. In this study, specimens of the long-lived crustose coralline alga Clathromorphum nereostratum were collected within the pathway of the Alaska Coastal Current and utilized as archives of past temperature and salinity. Results indicate that coralline algal Mg/Ca ratios provide a 60 year record of sea surface temperatures and track changes of the Pacific Decadal Oscillation, a pattern of decadal-to-multidecadal ocean-atmosphere climate variability centered over the North Pacific. Algal Ba/Ca ratios (used as indicators of coastal freshwater runoff) are inversely correlated to instrumentally measured Alaska Coastal Current salinity and record the period of freshening from 2001 to 2006. Similar multiyear freshening events are not evident in the earlier portion of the 60 year Ba/Ca record. This suggests that the 21st century freshening of the Alaska Coastal Current is a unique feature related to increasing glacial melt and precipitation on mainland Alaska.

  20. No-Voltage Meter

    Science.gov (United States)

    1976-02-01

    VW- IKft, 1/4 H4 -Wv- IK!1, I/4W INTERNAL VOLTAGE NOTE ALL TRANSISTORS ARE 2N43A OR EQUIVALENT GERMANIUM ALLOY PNP AA ALKALINE BATTERY...D-,, regardless of polarity. This signal is then full-wave rectified by the diode-connected Germanium transistor bridge, T,, T-,, T3, and T4... Transistor T5 acts as a second current limiter. Resistor R2 was selected to give 90 f# of full-scale meter deflection with an input signal of 115 volts

  1. Anti-jamming Performance Analysis of Communication Based on Leakage Current Meter%基于泄漏电流仪通讯的抗干扰性能分析

    Institute of Scientific and Technical Information of China (English)

    夏弘毅; 钱晓耀; 张忆汝; 金叶丹

    2016-01-01

    In order to design computer to control leakage current meter, connection of RS232 communication is established. But it is found that there is interference in the electromagnetic compatibility test, therefore, the comparison of the wired and wireless communication between host computer and leakage current meter is carried out. The communication capability evaluation from the view of anti-disturbance is designed to evaluate the anti-interference test platform of intelligent leak current instrument set up at the present stage, so as to ensure the reliability of the communication between host computer and leakage current meter.%为设计计算机对泄漏电流仪的控制,建立了RS232通讯的连接,但发现在进行电磁兼容测试时有干扰,因此开展了对计算机上位机和泄漏电流仪间有线、无线通讯的测试比较,从抗干扰情况角度进行通讯能力评价,旨在评价现阶段所搭建的智能泄漏电流仪的抗干扰测试平台,从而以保证计算机上位机与泄漏电流仪通讯的可靠性。

  2. Individual Monitoring and Occupational Dose Record Management in China: History, Current Status and Perspectives.

    Science.gov (United States)

    Wang, Hong-Bo; Yu, Hai-Tao; Sun, Quan-Fu

    2016-06-03

    This review paper presents an overview of individual monitoring, as well as the national dose register and dose record management of radiation workers in China. Progress has recently been made on the individual monitoring of radiation workers. A critical analysis of current status and problems in individual monitoring is also presented and necessary future research on individual monitoring, such as the monitoring technology in the form of the ring dosimeters and eye lens dosimeters, is suggested.

  3. Optical recording of calcium currents during impulse conduction in cardiac tissue.

    Science.gov (United States)

    Jousset, Florian; Rohr, Stephan

    2015-04-01

    We explore the feasibility of obtaining a spatially resolved picture of [Formula: see text] inward currents ([Formula: see text]) in multicellular cardiac tissue by differentiating optically recorded [Formula: see text] transients that accompany propagating action potentials. Patterned growth strands of neonatal rat ventricular cardiomyocytes were stained with the [Formula: see text] indicators Fluo-4 or Fluo-4FF. Preparations were stimulated at 1 Hz, and [Formula: see text] transients were recorded with high spatiotemporal resolution ([Formula: see text], 2 kHz analog bandwidth) with a photodiode array. Signals were differentiated after appropriate digital filtering. Differentiation of [Formula: see text] transients resulted in optically recorded calcium currents (ORCCs) that carried the temporal and pharmacological signatures of L-type [Formula: see text] inward currents: the time to peak amounted to [Formula: see text] (Fluo-4FF) and [Formula: see text] (Fluo-4), full-width at half-maximum was [Formula: see text], and ORCCs were completely suppressed by [Formula: see text][Formula: see text]. Also, and as reported before from patch-clamp studies, caffeine reversibly depressed the amplitude of ORCCs. The results demonstrate that the differentiation of [Formula: see text] transients can be used to obtain a spatially resolved picture of the initial phase of [Formula: see text] in cardiac tissue and to assess relative changes of activation/fast inactivation of [Formula: see text] following pharmacological interventions.

  4. Three-dimensional brain current source reconstruction from intra-cranial ECoG recordings.

    Science.gov (United States)

    Zhang, Yingchun; van Drongelen, Wim; Kohrman, Michael; He, Bin

    2008-08-15

    We have investigated 3-dimensional brain current density reconstruction (CDR) from intracranial electrocorticogram (ECoG) recordings by means of finite element method (FEM). The brain electrical sources are modeled by a current density distribution and estimated from the ECoG signals with the aid of a weighted minimum norm estimation algorithm. A series of computer simulations were conducted to evaluate the performance of ECoG-CDR by comparing with the scalp EEG based CDR results. The present computer simulation results indicate that the ECoG-CDR provides enhanced performance in localizing single dipole sources which are located in regions underneath the implanted subdural ECoG grids, and in distinguishing and imaging multiple separate dipole sources, in comparison to the CDR results as obtained from the scalp EEG under the same conditions. We have also demonstrated the applicability of the present ECoG-CDR method to estimate 3-dimensional current density distribution from the subdural ECoG recordings in a human epilepsy patient. Eleven interictal epileptiform spikes (seven from the frontal region and four from parietal region) in an epilepsy patient undergoing surgical evaluation were analyzed. The present promising results indicate the feasibility and applicability of the developed ECoG-CDR method of estimating brain sources from intracranial electrical recordings, with detailed forward modeling using FEM.

  5. Arctic Ice Dynamics Joint Experiment (AIDJEX) 1975-1976, Physical Oceanography Data Report Profiling Current Meter Data -- Camp Caribou. Volume 1.

    Science.gov (United States)

    1980-02-01

    Tsurumi-Seiki Co., Ltd. (TSK) underwater unit with a Savonius rotor, directional vane and pressure sensor. The unit was raised and lowered at 5 meters per...associated with the PCM at all of the camps was the sluggishness of the Savonius rotor when compared with the Savonius rotors of the higher quality Hydro...mast sensor. Experience from a number of investigators has shown that Savonius rotors with free bearings and uniform manufacture do j 11 I not need

  6. A Probabilistic Model of Meter Perception: Simulating Enculturation

    NARCIS (Netherlands)

    van der Weij, B.; Pearce, M.T.; Honing, H.

    Enculturation is known to shape the perception of meter in music but this is not explicitly accounted for by current cognitive models of meter perception. We hypothesize that the induction of meter is a result of predictive coding: interpreting onsets in a rhythm relative to a periodic meter

  7. Multitasking metering enhances generation, transmission operations

    Energy Technology Data Exchange (ETDEWEB)

    Sullivan, E.

    2008-11-15

    The Dairyland Power Cooperative (DPC) which operates from La Crosse, Wisconsin has the capacity to generate and transmit 1000 MW of power to 25 member cooperatives and 20 municipalities who serve over 500,000 customers. When DPC was experiencing diminished service within its analog cellular-based data communications system, it was presented with an opportunity to install a new automated telecommunications system that would provide secure collection of meter readings from all of its substations. DPC decided to evaluate an advanced multifunctional digital meter from Schweitzer Engineering Laboratories (SEL). The SEL-734 Revenue Metering System offers complete instantaneous metering functions, including voltages, currents, power, energy and power factor. Other capabilities include predictive demand, time-of-use metering, automatic voltage monitoring, harmonics metering and synchrophasor measurement. From a metering perspective, DPC wanted to perform daily load profiles and interval-by-interval metering of their delivery points for billing purposes. They also wanted to provide real-time monitoring of electricity being delivered for both generation and transmission purposes and to make that information available to a distribution SCADA system for their members. The SEL-734 Revenue Meter was well suited to those needs. The SEL-734 provides very high-accuracy energy metering, load profile data collection, instantaneous power measurements, power quality monitoring, and communicates simultaneously over a modem, serial ports, and wide area networks (WAN). The meter is backed with a ten-year warranty as well as field support engineers. 5 figs.

  8. On the estimation of population-specific synaptic currents from laminar multielectrode recordings

    Directory of Open Access Journals (Sweden)

    Sergey L Gratiy

    2011-12-01

    Full Text Available Multielectrode array recordings of extracellular electrical field potentials along the depth axis of the cerebral cortex is an up-and-coming approach for investigating activity of cortical neuronal circuits. The low-frequency band of extracellular potential, i.e., the local field potential (LFP, is assumed to reflect the synaptic activity and can be used to extract the current source density (CSD profile. However, physiological interpretation of CSD profiles is uncertain because the analysis does not disambiguate synaptic inputs from passive return currents. Here we present a novel mathematical framework for identifying excited neuronal populations and for separating synaptic input currents from return currents based on LFP recordings. This involves a combination of the linear forward model, which predicts population-specific laminar LFP in response to sinusoidal synaptic inputs applied at different locations along the population cells having realistic morphologies and the linear inverse model, which reconstructs laminar profiles of synaptic inputs from the Fourier spectrum of the laminar LFP data based on the forward prediction. The model allows reconstruction of synaptic input profiles on a spatial scale comparable to known anatomical organization of synaptic projections within a cortical column. Assuming spatial correlation of synaptic inputs within individual populations, the model decomposes the columnar LFP into population-specific contributions. Constraining the solution with a priori knowledge of the spatial distribution of synaptic connectivity further allows prediction of active projections from the composite LFP profile. This modeling framework successfully delineates the main relationships between the synaptic input currents and the evoked LFP and can serve as a foundation for modeling more realistic processing of active dendritic conductances.

  9. Is the Current Way of Constructing Corporate Authority Records Still Useful?

    Directory of Open Access Journals (Sweden)

    Qiang Jin

    2005-06-01

    Full Text Available Catalogers have been establishing corporate body name headings (and other entities in their original language in the official form, as they appear most frequently on the title pages of publications for print publications, for many years. A random sample of corporate headings from the Library of Congress Name Authority File created during 1998–2002 was searched on the Web via Google to find corporate Web pages. The purpose of this research is to begin to answer the question: Does the current way of constructing corporate authority records still help users find resources by and about corporate bodies in the online public access catalog in this Web-oriented environment?

  10. Boxwood Borer Heterobostrychus brunneus (Coleoptera: Bostrichidae) Infesting Dried Cassava: A Current Record from Southern Ethiopia

    Science.gov (United States)

    Parmar, Aditya; Kirchner, Sascha M.; Langguth, Henning; Döring, Thomas F.; Hensel, Oliver

    2017-01-01

    Insect specimens of adult beetles and larvae of 7–9 and 9–10 mm length, respectively were collected from infested dry cassava at two locations from multiple stores in southern Ethiopia. The specimens were identified as Heterobostrychus brunneus (Murray, 1867) commonly known as boxwood borer and auger beetle. The study presents a current record of H. brunneus in Ethiopia, particularly in the context of infesting food products. Additionally, a wide geographical distribution of the pest was reviewed and presented in this article. Current evidence suggests that H. brunneus is a serious pest of forest wood, structural timbers, and dried food products and that it carries a risk to be introduced into various other parts of the world via global trade. PMID:28130456

  11. Boxwood Borer Heterobostrychus brunneus (Coleoptera: Bostrichidae) Infesting Dried Cassava: A Current Record from Southern Ethiopia.

    Science.gov (United States)

    Parmar, Aditya; Kirchner, Sascha M; Langguth, Henning; Döring, Thomas F; Hensel, Oliver

    2017-01-01

    Insect specimens of adult beetles and larvae of 7-9 and 9-10 mm length, respectively were collected from infested dry cassava at two locations from multiple stores in southern Ethiopia. The specimens were identified as Heterobostrychus brunneus (Murray, 1867) commonly known as boxwood borer and auger beetle. The study presents a current record of H. brunneus in Ethiopia, particularly in the context of infesting food products. Additionally, a wide geographical distribution of the pest was reviewed and presented in this article. Current evidence suggests that H. brunneus is a serious pest of forest wood, structural timbers, and dried food products and that it carries a risk to be introduced into various other parts of the world via global trade.

  12. Whole-cell recordings of voltage-gated Calcium, Potassium and Sodium currents in acutely isolated hippocampal pyramidal neurons

    Institute of Scientific and Technical Information of China (English)

    Shuyun Huang; Qing Cai; Weitian Liu; Xiaoling Wang; Tao Wang

    2009-01-01

    Objective:To record Calcium, Potassium and Sodium currents in acutely isolated hippocampal pyramidal neurons. Methods:Hip-pocampal CA3 neurons were freshly isolated by 1 mg protease/3 ml SES and mechanical trituration with polished pipettes of progressively smaller tip diameters. Patch clamp technique in whole-cell mode was employed to record voltage-gated channel currents. Results:The procedure dissociated hippocampal neurons, preserving apical dendrites and several basal dendrites, without impairing the electrical characteristics of the neurons. Whole-cell patch clamp configuration was successfully used to record voltage-gated Ca2+ currents, delayed rectifier K+ current and voltage-gated Na+ currents. Conclusion:Protease combined with mechanical trituration may be used for the dissociation of neurons from rat hippocampus. Voltage-gated channels currents could be recorded using a patch clamp technique.

  13. Patch recordings from the electrocytes of Electrophorus electricus. Na currents and PNa/PK variability

    Science.gov (United States)

    1991-01-01

    Sodium currents were recorded in cell-attached and inside-out patches from the innervated membrane of Electrophorus electrocytes. Electrocytes from Sachs and main electric organs were prepared as described by Pasquale et al. (1986. J. Membr. Biol. 93:195.). Maximal currents in the Sachs organ, measured with 1-2 microns diameter patch pipettes and at room temperature, were in the range of 20 to 300 pA (27 patches) and were obtained near +10 mV. This range of current corresponds to approximately 70 to 1,300 channels in a patch. Maximal current in main organ cells also occurred near +10 mV and were in the range of 100 to 400 pA. Delayed K current was observed in a few patches. The inactivation phase of the currents during maintained depolarizations appears to be a single-exponential relaxation. The time constant decreases from 1 ms near -55 mV to a minimum of 0.3 ms near 0 mV, and then gradually increases with stronger depolarization. The mean currents are half inactivated near -90 mV with an apparent voltage dependence of e-fold per 6 mV. No apparent differences were observed in the decay time course or steady-state inactivation of the currents in the same patch before and after excision. From ensemble fluctuation analysis the peak open probability was found to be approximately 0.5 at +25 mV and increased only gradually with larger depolarizations. The single channel conductances were approximately 20 pS with 200 mM Na outside and 200 mM K inside, and 40 pS in 400 mM solutions. Reversal potentials in the 200 Na parallel 200 K solutions ranged from +51 to +94 mV in multichannel patches, corresponding to selectivity ratios PNa/PK from 8 to 43. Large differences in reversal potentials were seen even among patches from the same cell. Several controls rule out obvious sources of error in the reversal potential measurements. It is concluded that there is heterogeneity in the selectivity properties of the Na channels. PMID:1650809

  14. Patch recordings from the electrocytes of Electrophorus electricus. Na currents and PNa/PK variability.

    Science.gov (United States)

    Shenkel, S; Sigworth, F J

    1991-05-01

    Sodium currents were recorded in cell-attached and inside-out patches from the innervated membrane of Electrophorus electrocytes. Electrocytes from Sachs and main electric organs were prepared as described by Pasquale et al. (1986. J. Membr. Biol. 93:195.). Maximal currents in the Sachs organ, measured with 1-2 microns diameter patch pipettes and at room temperature, were in the range of 20 to 300 pA (27 patches) and were obtained near +10 mV. This range of current corresponds to approximately 70 to 1,300 channels in a patch. Maximal current in main organ cells also occurred near +10 mV and were in the range of 100 to 400 pA. Delayed K current was observed in a few patches. The inactivation phase of the currents during maintained depolarizations appears to be a single-exponential relaxation. The time constant decreases from 1 ms near -55 mV to a minimum of 0.3 ms near 0 mV, and then gradually increases with stronger depolarization. The mean currents are half inactivated near -90 mV with an apparent voltage dependence of e-fold per 6 mV. No apparent differences were observed in the decay time course or steady-state inactivation of the currents in the same patch before and after excision. From ensemble fluctuation analysis the peak open probability was found to be approximately 0.5 at +25 mV and increased only gradually with larger depolarizations. The single channel conductances were approximately 20 pS with 200 mM Na outside and 200 mM K inside, and 40 pS in 400 mM solutions. Reversal potentials in the 200 Na parallel 200 K solutions ranged from +51 to +94 mV in multichannel patches, corresponding to selectivity ratios PNa/PK from 8 to 43. Large differences in reversal potentials were seen even among patches from the same cell. Several controls rule out obvious sources of error in the reversal potential measurements. It is concluded that there is heterogeneity in the selectivity properties of the Na channels.

  15. Deducing Energy Consumer Behavior from Smart Meter Data

    DEFF Research Database (Denmark)

    Ebeid, Emad Samuel Malki; Heick, Rune; Jacobsen, Rune Hylsberg

    2017-01-01

    The ongoing upgrade of electricity meters to smart ones has opened a new market of intelligent services to analyze the recorded meter data. This paper introduces an open architecture and a unified framework for deducing user behavior from its smart main electricity meter data and presenting...

  16. Estimation of population firing rates and current source densities from laminar electrode recordings.

    Science.gov (United States)

    Pettersen, Klas H; Hagen, Espen; Einevoll, Gaute T

    2008-06-01

    This model study investigates the validity of methods used to interpret linear (laminar) multielectrode recordings. In computer experiments extracellular potentials from a synaptically activated population of about 1,000 pyramidal neurons are calculated using biologically realistic compartmental neuron models combined with electrostatic forward modeling. The somas of the pyramidal neurons are located in a 0.4 mm high and wide columnar cylinder, mimicking a stimulus-evoked layer-5 population in a neocortical column. Current-source density (CSD) analysis of the low-frequency part (estimates of the true underlying CSD. The high-frequency part (>750 Hz) of the potentials (multi-unit activity, MUA) is found to scale approximately as the population firing rate to the power 3/4 and to give excellent estimates of the underlying population firing rate for trial-averaged data. The MUA signal is found to decay much more sharply outside the columnar populations than the LFP.

  17. Transcranial alternating current stimulation with sawtooth waves: simultaneous stimulation and EEG recording

    Directory of Open Access Journals (Sweden)

    James eDowsett

    2016-03-01

    Full Text Available Transcranial alternating current stimulation (tACS has until now mostly been administered as an alternating sinusoidal wave. Despite modern tACS stimulators being able to deliver alternating current with any arbitrary shape there has been no systematic exploration into the relative benefits of different waveforms. As tACS is a relatively new technique there is a huge parameter space of unexplored possibilities which may prove superior or complimentary to the traditional sinusoidal waveform. Here we begin to address this with an investigation into the effects of sawtooth wave tACS on individual alpha power. Evidence from animal models suggests that the gradient and direction of an electric current should be important factors for the subsequent neural firing rate; we compared positive and negative ramp sawtooth waves to test this. An additional advantage of sawtooth waves is that the resulting artefact in the electroencephalogram (EEG recording is significantly simpler to remove than a sine wave; accordingly we were able to observe alpha oscillations both during and after stimulation.We found that positive ramp sawtooth, but not negative ramp sawtooth, significantly enhanced alpha power during stimulation relative to sham (p<0.01. In addition we tested for an after-effect of both sawtooth and sinusoidal stimulation on alpha power but in this case did not find any significant effect. This preliminary study paves the way for further investigations into the effect of the gradient and direction of the current in tACS which could significantly improve the usefulness of this technique.

  18. Optical cycle power meter

    DEFF Research Database (Denmark)

    2014-01-01

    A bicycle power meter for measuring power generated when riding a bicycle, the power meter comprising a position-sensitive radiation detector (409) attachable to a component of a crank set (404) of bicycle, and a radiation source (408) attachable to the component of the crank set and configured...

  19. Ultrasonic flow meter

    NARCIS (Netherlands)

    Lötters, Joost Conrad; Snijders, G.J.; Volker, A.W.F.

    2014-01-01

    The invention relates to an ultrasonic flow meter comprising a flow tube for the fluid whose flow rate is to be determined. The flow meter comprises a transmitting element for emitting ultrasonic waves, which is provided on the outer jacket of the flow tube. A receiving element, which is provided on

  20. On the estimation of population-specific synaptic currents from laminar multielectrode recordings.

    Science.gov (United States)

    Gratiy, Sergey L; Devor, Anna; Einevoll, Gaute T; Dale, Anders M

    2011-01-01

    Multielectrode array recordings of extracellular electrical field potentials along the depth axis of the cerebral cortex are gaining popularity as an approach for investigating the activity of cortical neuronal circuits. The low-frequency band of extracellular potential, i.e., the local field potential (LFP), is assumed to reflect synaptic activity and can be used to extract the laminar current source density (CSD) profile. However, physiological interpretation of the CSD profile is uncertain because it does not disambiguate synaptic inputs from passive return currents and does not identify population-specific contributions to the signal. These limitations prevent interpretation of the CSD in terms of synaptic functional connectivity in the columnar microcircuit. Here we present a novel anatomically informed model for decomposing the LFP signal into population-specific contributions and for estimating the corresponding activated synaptic projections. This involves a linear forward model, which predicts the population-specific laminar LFP in response to synaptic inputs applied at different positions along each population and a linear inverse model, which reconstructs laminar profiles of synaptic inputs from laminar LFP data based on the forward model. Assuming spatially smooth synaptic inputs within individual populations, the model decomposes the columnar LFP into population-specific contributions and estimates the corresponding laminar profiles of synaptic input as a function of time. It should be noted that constant synaptic currents at all positions along a neuronal population cannot be reconstructed, as this does not result in a change in extracellular potential. However, constraining the solution using a priori knowledge of the spatial distribution of synaptic connectivity provides the further advantage of estimating the strength of active synaptic projections from the columnar LFP profile thus fully specifying synaptic inputs.

  1. Current meter components and other data from fixed platforms from TOGA Area - Pacific (30 N to 30 S) and other locations in support of the Tropical Ocean Global Atmosphere (TOGA) and the Equatorial Pacific Ocean Climate Studies (EPOCS) projects from 16 April 1989 to 14 May 1990 (NODC Accession 9200266)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter components data were collected from fixed platforms from the TOGA Area - Pacific (30 N to 30 S) and other locations from 16 April 1989 to 14 May 1990....

  2. Chemical, physical, and other data collected using bottle, BT, current meter, MBT, meteorological sensors, and secchi disk casts in the North Pacific Ocean as part of the California Cooperative Fisheries Investigation (CALCOFI) project, from 01 January to 04 December 1968 (NODC Accession 7100603)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Chemical, physical, and other data were collected using bottle, BT, current meter, MBT, meteorological sensors, and secchi disk casts from January 1, 1968 to...

  3. Physical and other data from CTD casts, current meters, and other instruments from the SHOYO and other platforms from the North Pacific Ocean and other locations by the Japanese Hydrographic Office and the Maritime Safety Agency; Hydrographic Division from 01 January 1990 to 31 December 1991 (NODC Accession 9300113)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Physical and other data from CTD casts, current meters, and other instruments from the SHOYO and other platforms from the North Pacific Ocean and other locations...

  4. Physical and other data from current meters, bottle casts, CTD casts, meteorological sensors, and other instruments from the GYRE as part of the Texas-Louisiana Shelf Circulation and Transport Processes Study (LATEX PART A) from 09 April 1992 to 02 October 1994 (NODC Accession 9500056)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Physical and other data were collected from current meters, bottle casts, CTD casts, meteorological sensors, and other instruments from the GYRE from 09 April 1992...

  5. Water physical and chemical data from current meter and bottle casts from the H.J.W. FAY and other platforms as part of the Ocean Continental Shelf - Mid Atlantic (OCS - Mid Atlantic) project, 16 May 1977 - 15 September 1977 (NODC Accession 7800386)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Water physical and chemical data were collected using current meter and bottle casts from the H.J.W. FAY and other platforms from May 16, 1977 to September 15, 1977....

  6. Water physical, chemical, and benthic organisms data from current meter and bottle casts from the H.J.W. FAY and CAPE HENLOPEN as part of the Ocean Continental Shelf - Mid Atlantic (OCS - Mid Atlantic) project, 03 November 1976 - 15 September 1977 (NODC Accession 7800319)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Water physical, chemical, and benthic organisms data were collected using current meter and bottle casts from the H.J.W.FAY and CAPE HENLOPEN from November 3, 1976...

  7. Current meter components and other data from FIXED PLATFORMS from the NW Atlantic (limit-40 W) and others locations as part of the Coupled Ocean-Atmosphere Response Experiment (COARE) and other projects from 26 February 1984 to 01 June 1986 (NODC Accession 9100048)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter components data were collected from FIXED PLATFORMS in the NW Atlantic (limit-40 W) and others locations from 26 February 1984 to 01 June 1986. Data...

  8. Physical and other data from CTD casts, XBT casts, current meters, and other instruments from the SHOYO and other platforms from the NE Pacific (limit-180) and other locations by the Japanese Hydrographic Office and the Maritime Safety Agency; Hydrographic Division from 16 January 1993 to 01 December 1995 (NODC Accession 9600079)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Physical and other data from CTD casts, XBT casts, current meters, and other instruments from the SHOYO and other platforms from the NE Pacific (limit-180) and other...

  9. Current meter components and other data from XCP casts from VARIOUS SMALL VESSELS and other platforms from the North Atlantic Ocean as part of the OCEAN DUMPING and other projects from 01 December 1990 to 01 June 1991 (NODC Accession 9300076)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Current meter components and other data were collected from XCP casts from VARIOUS SMALL VESSELS and other platforms in the North Atlantic Ocean. Data were collected...

  10. INFLUENCE OF VARIATIONS OF THE CONDUCTIVITY OF UPPER LAYER OF TWO-LAYER SAMPLE ON OF PHASE INTRODUCED ELECTROMOTIVE FORCE OF SUPERIMPOSED TRANSDUCER OF EDDY CURRENT THICKNESS METER

    Directory of Open Access Journals (Sweden)

    A. V. Chernyshev

    2017-01-01

    Full Text Available In carrying out eddy current thickness measurement of two-layer conductive objects one from the interfering factors is the presence of variations in the value of the electrical conductivity of the material of the upper layer (coating when moving from point to point on the surface of object of control or when passing from one object of control to another. The aim of this work is to evaluate the accuracy of determining the thickness of the conductive coating disposed on a conducting ferromagnetic basis, using the phase method of eddy current testing. The reason of the error is variation of the electrical conductivity of the material of coating.Determination of the error is based on calculations using known analytical expressions for the loop with current of sinusoidal form arranged over the infinite half space with a covering as a thin layer. Selected in calculating electromagnetic parameters of coating and substrate approximately correspond to the case -chromium layer on a nickel base. Calculations are performed for different frequencies of current passed through coil.It is shown that at reduction of frequency of the current passes through the coil the error is reduced. The value of the lowest possible operating frequency of the excitation current is determined by the condition of absence influence on the phase introduced into the superimposed transducer emf variations in the thickness of the basis.To reduce the indicated error it is proposed to determine, on the basis of phase method at a relatively high frequency transducer current excitation, conductivity of the material of coating. After this, at a low frequency excitation current and using phase method, the coating thickness is determined, taking into consideration the previously determined value of the conductivity of coating. Also discussed ways to improve the accuracy of phase measurements in the MHz region of the excitation current frequency. 

  11. World-record current in the MgB2 superconductor

    CERN Multimedia

    Antonella Del Rosso

    2014-01-01

    In the framework of the High-Luminosity LHC project, experts from the CERN Superconductors team recently obtained a world-record current of 20 kA at 24 K in an electrical transmission line consisting of two 20-metre long cables made of Magnesium Diboride (MgB2) superconductor. This result makes the use of such technology a viable solution for long-distance power transportation.   The 20-metre long electrical transmission line containing the two 20 kA MgB2 cables. “The test is an important step in the development of cold electrical power transmission systems based on the use of MgB2,” says Amalia Ballarino, head of the Superconductors and Superconducting Devices section in the Magnet, Superconductors and Cryostat group of the Technology Department, and initiator of this project. “The cables and associated technologies were designed, developed and tested at CERN. The superconducting wire is the result of a long R&D effort that started ...

  12. Design of current meter data acquisition system based on AVR single chip computer%基干AVR单片机的海流计数据采集系统设计

    Institute of Scientific and Technical Information of China (English)

    陈长安; 吴建岚; 王升

    2014-01-01

    Since the common used direct reading current meter has the disadvantages of high-power consumption,short con-tinuous working time,low reliability and no storage function,a new current meter data acquisition system with low-power con-sumption and high reliability was designed on the basis of basic principle of the counting interrupt to improve the reliability of the direct reading current meter. The AVR microcomputer ATmega8 is adopted as kernel processor in the data acquisition sys-tem. The pulse signal form of underwater part is utilized in the system design. The testing results of prototype machine show that the system features easy operation,stable performance and low cost,and can work continuously for a long time under water. It can fully meet the requirements of various current measurements.%目前业内普遍使用的直读式海流计功耗大,连续工作时间短,且无数据存储功能,可靠性不高,在需长时间进行海洋观测使用时十分不便。针对这一情况,为提高直读式海流计的可靠性,以AVR单片机ATmega8为核心处理器,基于水下分机输出脉冲信号形式,采用中断计数的基本原理,重新设计开发了一种低功耗高可靠的海流计数据采集系统。样机测试结果表明:该系统操作简单、性能稳定,可长时间在水下连续可靠工作,完全满足各种海洋作业中海流测量需求。

  13. 基于低压电力载波通信的单相智能电表的设计%Design of Single-phase Smart Meter Based on low Voltage Power Line Carrier-Current Communication

    Institute of Scientific and Technical Information of China (English)

    宋树祥; 韦正丛; 梁承福; 何婷婷

    2012-01-01

    In order to remote real-time monitoring and management of single-phase smart meters, a single-phase smart meters has been designed based on carrier chip PL3201 and metering chip 90E24. This design used the low-voltage power line carrier communication, by the direct sequence spread spectrum communication technology, making the system's anti - jamming capability improved significantly. Meanwhile, the design uses the IDT's latest high - precision chip 90E24, the measurement accuracy is better than current industry standards, in a considerable time, the power sector to meet national requirements for measurement accuracy. Practical results show that the design is not only Low-cost, simple, and the measurement of high precision, strong anti -interference, for low carrier concentration meter reading system.%为了对单相智能电表进行远程实时监控管理,设计了一种基于载波芯片PL3201和计量芯片90E24的单相智能电表;该设计把直接序列扩频通信技术应用于低压电力线载波通信,使得系统的抗干扰能力得到显著提升;同时,该设计采用了IDT公司最新推出的高精度计量芯片90E24进行计量,其计量精度优于目前业内水平,能在相当时间内满足国家电力部门对计量精度的要求;实践结果表明,该设计不仅成本低廉、方法简单,且计量精度高、扰干扰能力强,适用于低压载波集中抄表系统.

  14. Ride-Quality Meter

    Science.gov (United States)

    Leatherwood, J. D.; Dempsey, T. K.; Clevenson, S. A.; Stephens, D. G.

    1983-01-01

    Single- and combined-Axis discomfort are corrected by effects of noise and vibration to yield measure of total discomfort experienced by rider. Three modules transform mathematically-weighted rms accelerations, which represent physical vibration characteristics, into subjective discomfort units. Portable "ride-quality" meter measures passenger discomfort and acceptability of vehicle interior noise and vibration. Meter especially suited for determining vehicle comfort and design tradeoffs and for comparing ride quality of vehicles.

  15. Arrival Metering Precision Study

    Science.gov (United States)

    Prevot, Thomas; Mercer, Joey; Homola, Jeffrey; Hunt, Sarah; Gomez, Ashley; Bienert, Nancy; Omar, Faisal; Kraut, Joshua; Brasil, Connie; Wu, Minghong, G.

    2015-01-01

    This paper describes the background, method and results of the Arrival Metering Precision Study (AMPS) conducted in the Airspace Operations Laboratory at NASA Ames Research Center in May 2014. The simulation study measured delivery accuracy, flight efficiency, controller workload, and acceptability of time-based metering operations to a meter fix at the terminal area boundary for different resolution levels of metering delay times displayed to the air traffic controllers and different levels of airspeed information made available to the Time-Based Flow Management (TBFM) system computing the delay. The results show that the resolution of the delay countdown timer (DCT) on the controllers display has a significant impact on the delivery accuracy at the meter fix. Using the 10 seconds rounded and 1 minute rounded DCT resolutions resulted in more accurate delivery than 1 minute truncated and were preferred by the controllers. Using the speeds the controllers entered into the fourth line of the data tag to update the delay computation in TBFM in high and low altitude sectors increased air traffic control efficiency and reduced fuel burn for arriving aircraft during time based metering.

  16. Longwall AFC chain tension meter

    Energy Technology Data Exchange (ETDEWEB)

    Peter Lugg; Zhiqiang Guan; Bart Pienaar [CRC Mining (Australia)

    2008-02-15

    Evaluation of the downtime statistics of two longwall mines studied as part of the Landmark Automation Project showed that AFC (Armoured Face Conveyor) and BSL (Beam Stage Loader) chain related failures accounted for 27% of all downtime. A chain tension meter was designed, certified Ex ia for use in ERZ0 sections of Australian coal mines and successfully field trialled on a longwall face during production. The dynamic behaviour and unequal sharing of load between the chains were recorded and found to be significant. The changing format of tension distribution around the conveyor as it is loaded was recorded and the implications of the change in the location of the point of minimum tension from tailgate to maingate as the conveyor is unloaded emphasised. The trial was run monitoring AFC chain tensions over a few shifts. The project successfully demonstrated that the measurement of AFC chain tensions on a working face can be achieved reliably.

  17. Collaborative Outbound Taxi Metering for Environmental Benefits Project

    Data.gov (United States)

    National Aeronautics and Space Administration — This proposal addresses the concept of Collaborative Outbound Taxi Metering (COTM), which provides environmental benefits without sacrificing throughput. In current...

  18. The Curing Meter

    DEFF Research Database (Denmark)

    Jensen, Ole Mejlhede

    2006-01-01

    Curing technology concerns adjustment and control of temperature and moisture conditions in hardening structures and elements of concrete. The curing technology comprises e.g. measurement, adjustment and control of the moisture conditions during the early hardening phase of the concrete to achiev...... from concrete surfaces in the early hardening phase. The Concrete Curing Meter is designed for simple and reliable monitoring of water loss from a wet surface of fresh concrete. This new measuring technique has been tested with several prototypes of the Curing Meter....

  19. Transformerless High-Quality Electrocardiogram and Body Impedance Recording by an Amplifier with Current-Driven Inputs

    Directory of Open Access Journals (Sweden)

    Dobrev D.

    2009-12-01

    Full Text Available Measurement and recording of changes in bioelectrical impedance in vivo has become a widely used method with various clinical applications. It includes basal impedance Zo, relative changes ΔZ or its derivative dZ. Many applications related to cardiac and respiratory function require simultaneous electrocardiogram, impedance cardiogram and/or respiration signals recording and analysis. Accurate recording of body impedance is limited by high common mode voltages at the amplifier inputs combined with the influence of the output impedance of the used current source. A circuit concept for a simultaneous high-quality electrocardiogram and bioimpedance acquisition is proposed, profiting from advantages offered by a previously specially designed amplifier with current-driven inputs, yielding to low common mode and high differential mode input impedances.

  20. The new climate data record of total and spectral solar irradiance: Current progress and future steps

    Science.gov (United States)

    Coddington, Odele; Lean, Judith; Rottman, Gary; Pilewskie, Peter; Snow, Martin; Lindholm, Doug

    2016-04-01

    We present a climate data record of Total Solar Irradiance (TSI) and Solar Spectral Irradiance (SSI), with associated time and wavelength dependent uncertainties, from 1610 to the present. The data record was developed jointly by the Laboratory for Atmospheric and Space Physics (LASP) at the University of Colorado Boulder and the Naval Research Laboratory (NRL) as part of the National Oceanographic and Atmospheric Administration's (NOAA) National Centers for Environmental Information (NCEI) Climate Data Record (CDR) Program, where the data record, source code, and supporting documentation are archived. TSI and SSI are constructed from models that determine the changes from quiet Sun conditions arising from bright faculae and dark sunspots on the solar disk using linear regression of proxies of solar magnetic activity with observations from the SOlar Radiation and Climate Experiment (SORCE) Total Irradiance Monitor (TIM), Spectral Irradiance Monitor (SIM), and SOlar Stellar Irradiance Comparison Experiment (SOLSTICE). We show that TSI can be separately modeled to within TIM's measurement accuracy from solar rotational to solar cycle time scales and we assume that SSI measurements are reliable on solar rotational time scales. We discuss the model formulation, uncertainty estimates, and operational implementation and present comparisons of the modeled TSI and SSI with the measurement record and with other solar irradiance models. We also discuss ongoing work to assess the sensitivity of the modeled irradiances to model assumptions, namely, the scaling of solar variability from rotational-to-cycle time scales and the representation of the sunspot darkening index.

  1. Transformer and Meter Tester

    Science.gov (United States)

    Stoms, R. M.

    1984-01-01

    Numerically-controlled 5-axis machine tool uses transformer and meter to determine and indicate whether tool is in home position, but lacks built-in test mode to check them. Tester makes possible test, and repair of components at machine rather then replace them when operation seems suspect.

  2. Optical Attenuation Coefficient Meter

    Science.gov (United States)

    2016-06-22

    back scattered light 202. The back scattered light 202 travels to the attenuation meter 10 after scattering by thermodynamic density fluctuations and...invention to the precise form disclosed; and obviously many modifications and variations are possible in light of the above teaching . Such

  3. Anti-Theft Automatic Metering Interface

    Directory of Open Access Journals (Sweden)

    Abhijeet Das

    2015-08-01

    Full Text Available Abstract Electricity is now more than a necessity and its need is increasing day by day resulting in power theft and power scarcity. The purpose of this project is to provide automatic control and monitoring of the Domestic Energy Meter enabling the Electricity Department to read meter readings without anyone visiting each house and also prevent electricity theft .This can be achieved by the use of a Microcontroller Unit that continuously monitors and records the Energy Meter readings in its permanent memory location. This system also makes use of a GSM module for remote monitoring and control of Energy Meter with the help of an interfacing circuitry. The Microcontroller based system continuously records the readings and the live meter reading can be sent to the Electricity department after a count period or on request. This system also can be used to disconnect the power supply to the house in case of non-payment of electricity bills. The Substation will be the receiving end. The data received is fed to a microcontroller at the Substation which will automatically calculate the bill based on tariff provider and display it.

  4. Current Land Subsidence in Tianjin, China Recorded by Three Continuous GPS stations (2010-2014)

    Science.gov (United States)

    Jia, X.; Jing, Q.; Yan, B.; Yu, J.; Gan, W.; Wang, G.

    2014-12-01

    In the past two decades, Global Positioning System (GPS) technologies have been frequently applied to urban subsidence studies, both as a complement, and an alternative to conventional surveying methods. These studies have demonstrated that high-accuracy GPS techniques are an efficient tool in tracking long-term land subsidence. A great number of Continuously Operating Reference GPS Stations (CORS) have been installed in China during the past five years. Considerable land subsidence has been observed from CORS stations installed in several large cities. This study investigated GPS time series observed at three CORS in Tianjin: TJBD (2010-2014), TJBH (2010-2014), and TJWQ (2010-2014). Tianjin is one of the largest cities that is experiencing severe land subsidence problems in China. The observations at the three GPS sites indicate different subsidence rates. The average subsidence rate over four years are 0.2 cm/year at TJBD, 2 cm/year at TJBH, and 4.4 cm/year at TJWQ. The GPS station TJBD is located at Baodi, Tianjin. This area is the least economically developed and have the smallest population compared to the other two areas. Over 80% of water usage in Baodi is for agriculture and only less than 15% is from groundwater. The rapid subsidence at TJBH and TJWQ were caused by huge groundwater withdrawals associate with rapid urban and industrial developments in Binhai and Wuqing. Wuqing district, with a unique location advantage called "Corridor of Beijing and Tianjin", has been experiencing major urbanization. The population has reached 1,053,300 and the water usage has reached 350 million cubic meters in 2012. Over 25% of water usage is from groundwater. Significant annual and half-annual seasonal ground surface fluctuation has been observed from all three GPS stations. The peak-to-peak amplitude of the annual signal is 1.5 cm.

  5. Rorschach records of Nazi war criminals: a reanalysis using current scoring and interpretation practices.

    Science.gov (United States)

    Zillmer, E A; Archer, R P; Castino, R

    1989-01-01

    The Nuremberg trials focused worldwide attention on 22 Nazi war criminals. Rorschach Inkblot tests were administered to these Nazi leaders in an attempt to understand the Nazi personality. Past studies which have described and interpreted these Rorschach records have made at least two types of errors in their analyses. One is that of overinterpretation and excessive inference. A second common error has been the failure to detect meaningful distinctions between protocols that represent significant differences in personality style. This latter error is shown in repeated attempts to group all Nazi protocols into one distinct "Nazi personality." This investigation attempted to quantify the analysis of these Nazi Rorschach records, specifically those Nazi leaders who were sentenced to life imprisonment or execution for their war crimes against humanity, by utilizing Exner's (1985a) standardized Comprehensive Scoring System as well as computerized objective interpretation software based on the Exner system (1986). This modern analysis of the Rorschach records demonstrates that the Nazi war criminals cannot be grouped together into one specific mental disorder that would adequately characterize these diverse individuals. The varying degrees of psychopathology of the Nazi leaders are illustrated by analyses of individual Rorschach protocols.

  6. Electric current and voltage recordings on the myocardium during electrosurgical procedures in canines.

    Science.gov (United States)

    Selikowitz, S M; LaCourse, J R

    1987-03-01

    Voltage and current spectra were measured with probes placed directly on the canine myocardium during transurethral resection (TUR). It was determined that three factors may be related to potential cardiac effects during electrosurgical procedures: obvious low frequency components modulated from a center frequency of the electrosurgical generator; high current density due to high power setting during TUR, and duration of application of the cutting waveform.

  7. Vertical current data collected using current meter from KNORR and other platforms in North/South Pacific and Atlantic Ocean from 05 May 1974 to 27 April 1982 (NODC Accession 8600269)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Vertical current profiler data collected from various ships off of the "White Horse" instrument. Data were submitted by Dr. James Luyten of Woods Hole Oceanographic...

  8. Time-series current measurements, temperature, and salinity data from CTD, moored buoy, and current meter casts from the Norton Sound Alaska from 14 July 1985 to 22 July 1985 (NODC Accession 0000368)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Time-series current measurements, temperature, and salinity data were collected from fixed platforms at the Bering Sea - Norton Sound from July 14, 1985 to July 22,...

  9. Gd3+ and calcium sensitive, sodium leak currents are features of weak membrane-glass seals in patch clamp recordings.

    Science.gov (United States)

    Boone, Adrienne N; Senatore, Adriano; Chemin, Jean; Monteil, Arnaud; Spafford, J David

    2014-01-01

    The properties of leaky patch currents in whole cell recording of HEK-293T cells were examined as a means to separate these control currents from expressed sodium and calcium leak channel currents from snail NALCN leak channels possessing both sodium (EKEE) and calcium (EEEE) selectivity filters. Leak currents were generated by the weakening of gigaohm patch seals by artificial membrane rupture using the ZAP function on the patch clamp amplifier. Surprisingly, we found that leak currents generated from the weakened membrane/glass seal can be surprisingly stable and exhibit behavior that is consistent with a sodium leak current derived from an expressible channel. Leaky patch currents differing by 10 fold in size were similarly reduced in size when external sodium ions were replaced with the large monovalent ion NMDG+. Leaky patch currents increased when external Ca2+ (1.2 mM) was lowered to 0.1 mM and were inhibited (>40% to >90%) with 10 µM Gd3+, 100 µM La3+, 1 mM Co2+ or 1 mM Cd2+. Leaky patch currents were relatively insensitive (Sylgard rubber.

  10. A CMOS power-efficient low-noise current-mode front-end amplifier for neural signal recording.

    Science.gov (United States)

    Wu, Chung-Yu; Chen, Wei-Ming; Kuo, Liang-Ting

    2013-04-01

    In this paper, a new current-mode front-end amplifier (CMFEA) for neural signal recording systems is proposed. In the proposed CMFEA, a current-mode preamplifier with an active feedback loop operated at very low frequency is designed as the first gain stage to bypass any dc offset current generated by the electrode-tissue interface and to achieve a low high-pass cutoff frequency below 0.5 Hz. No reset signal or ultra-large pseudo resistor is required. The current-mode preamplifier has low dc operation current to enhance low-noise performance and decrease power consumption. A programmable current gain stage is adopted to provide adjustable gain for adaptive signal scaling. A following current-mode filter is designed to adjust the low-pass cutoff frequency for different neural signals. The proposed CMFEA is designed and fabricated in 0.18-μm CMOS technology and the area of the core circuit is 0.076 mm(2). The measured high-pass cutoff frequency is as low as 0.3 Hz and the low-pass cutoff frequency is adjustable from 1 kHz to 10 kHz. The measured maximum current gain is 55.9 dB. The measured input-referred current noise density is 153 fA /√Hz , and the power consumption is 13 μW at 1-V power supply. The fabricated CMFEA has been successfully applied to the animal test for recording the seizure ECoG of Long-Evan rats.

  11. Digital Receiver Phase Meter

    Science.gov (United States)

    Marcin, Martin; Abramovici, Alexander

    2008-01-01

    The software of a commercially available digital radio receiver has been modified to make the receiver function as a two-channel low-noise phase meter. This phase meter is a prototype in the continuing development of a phase meter for a system in which radiofrequency (RF) signals in the two channels would be outputs of a spaceborne heterodyne laser interferometer for detecting gravitational waves. The frequencies of the signals could include a common Doppler-shift component of as much as 15 MHz. The phase meter is required to measure the relative phases of the signals in the two channels at a sampling rate of 10 Hz at a root power spectral density digital receiver. The input RF signal is first fed to the input terminal of an analog-to-digital converter (ADC). To prevent aliasing errors in the ADC, the sampling rate must be at least twice the input signal frequency. The sampling rate of the ADC is governed by a sampling clock, which also drives a digital local oscillator (DLO), which is a direct digital frequency synthesizer. The DLO produces samples of sine and cosine signals at a programmed tuning frequency. The sine and cosine samples are mixed with (that is, multiplied by) the samples from the ADC, then low-pass filtered to obtain in-phase (I) and quadrature (Q) signal components. A digital signal processor (DSP) computes the ratio between the Q and I components, computes the phase of the RF signal (relative to that of the DLO signal) as the arctangent of this ratio, and then averages successive such phase values over a time interval specified by the user.

  12. Ride quality meter

    Science.gov (United States)

    Leatherwood, J. D.; Dempsey, T. K.; Clevenson, S. A.; Stephens, D. G. (Inventor)

    1983-01-01

    A ride quality meter is disclosed that automatically transforms vibration and noise measurements into a single number index of passenger discomfort. The noise measurements are converted into a noise discomfort value. The vibrations are converted into single axis discomfort values which are then converted into a combined axis discomfort value. The combined axis discomfort value is corrected for time duration and then summed with the noise discomfort value to obtain a total discomfort value.

  13. 20-meter underwater wireless optical communication link with 15 Gbps data rate

    KAUST Repository

    Shen, Chao

    2016-10-24

    The video streaming, data transmission, and remote control in underwater call for high speed (Gbps) communication link with a long channel length (∼10 meters). We present a compact and low power consumption underwater wireless optical communication (UWOC) system utilizing a 450-nm laser diode (LD) and a Si avalanche photodetector. With the LD operating at a driving current of 80 mA with an optical power of 51.3 mW, we demonstrated a high-speed UWOC link offering a data rate up to 2 Gbps over a 12-meter-long, and 1.5 Gbps over a record 20-meter-long underwater channel. The measured bit-error rate (BER) are 2.8 × 10-5, and 3.0 × 10-3, respectively, which pass well the forward error correction (FEC) criterion. © 2016 Optical Society of America.

  14. 20-meter underwater wireless optical communication link with 1.5 Gbps data rate.

    Science.gov (United States)

    Shen, Chao; Guo, Yujian; Oubei, Hassan M; Ng, Tien Khee; Liu, Guangyu; Park, Ki-Hong; Ho, Kang-Ting; Alouini, Mohamed-Slim; Ooi, Boon S

    2016-10-31

    The video streaming, data transmission, and remote control in underwater call for high speed (Gbps) communication link with a long channel length (~10 meters). We present a compact and low power consumption underwater wireless optical communication (UWOC) system utilizing a 450-nm laser diode (LD) and a Si avalanche photodetector. With the LD operating at a driving current of 80 mA with an optical power of 51.3 mW, we demonstrated a high-speed UWOC link offering a data rate up to 2 Gbps over a 12-meter-long, and 1.5 Gbps over a record 20-meter-long underwater channel. The measured bit-error rate (BER) are 2.8 × 10-5, and 3.0 × 10-3, respectively, which pass well the forward error correction (FEC) criterion.

  15. [Mosquito fauna (Diptera:Culicidae) from Falcon State, Venezuela. I. New records and current checklist].

    Science.gov (United States)

    Navarro, J C; Bastidas, R J; Zavala, Y

    1994-01-01

    A total of 16 new species records of Culicidae from Falcon State was collected at the "Juan Crisostomo Falcon National Park" (Sierra de San Luis), Natural Monument "Cerro Santa Ana", Coro, and La Vela. Species of Sabethini, Culicini and Toxorhynchitini Tribes were found in natural breeding sites (Phytotelmata), with special occurrence in plants belonging to Tillandsia, Vriesea, Guzmania, Aechmea (Bromelianceae), Heliconia (Heliconiaceae), Calathea (Marantaceae) and Colocasia (Araceae). Aedini and Mansonini were collected only as adults. A specie of Culex (Carrollia) was collected from an artificial container. The Culicidae species belong to 6 genera out of the 23 genera reported from Venezuela (Culex, Wyeomyia, Johnbelkinia, Aedes, Psorophora, Mansonia and Coquillettidia) and to 5 Tribes out of the 9 present in the country. The Aedini, Sabethini and Culicini Tribes were richer in species with 5, 4 and 4 species, respectively, than the Mansonini (2 species) and Toxorhynchitini (1 species) Tribes. We discuss some bioecological aspects regarding the 16 new-species records in Falcon State and give a checklist of the mosquito species previously reported in the literature.

  16. The current knowledge on centipedes (Chilopoda) in Slovenia: faunistic and ecological records from a national database.

    Science.gov (United States)

    Ravnjak, Blanka; Kos, Ivan

    2015-01-01

    In spite of Slovenia's very high biodiversity, it has only a few animal groups that have been significantly investigated and are well known in this area. Slovenian researchers have studied only about half of the species known to be living in the country (Mršić 1997), but among well investigated species are centipedes. All available data about centipedes in Slovenia collected from 1921 to 2014 have been consolidated and constitute a general electronic database called "CHILOBIO", which was created to provide an easy overview of the Slovenian centipede fauna and to allow entry and interpretation of new data collected in future research. The level of investigation has been studied with this database, in conjunction with a geographic information system (GIS). In the study period, 109 species were identified from 350 localities in 109 of the 236 UTM 10 × 10 km quadrants which cover the study area. The south-central part of the country has been the subject of the best investigations, whereas there is an absence of data from the south-eastern, eastern and north-eastern regions The highest number of species (52) has been recorded near the Iška valley (Central Slovenia, quadrant VL68). In 48% of the UTM quadrants investigated fewer than 10 species were recorded and just 5 species were found in one locality. Seventeen species were reported only in the Dinaric region, 4 in the Prealpine-subpannonian region and 7 in the Primorska-submediterranean region.

  17. Current good manufacturing practices, quality control procedures, quality factors, notification requirements, and records and reports, for infant formula. Final rule.

    Science.gov (United States)

    2014-06-10

    The Food and Drug Administration (FDA or we) is issuing a final rule that adopts, with some modifications, the interim final rule (IFR) entitled "Current Good Manufacturing Practices, Quality Control Procedures, Quality Factors, Notification Requirements, and Records and Reports, for Infant Formula'' (February 10, 2014). This final rule affirms the IFR's changes to FDA's regulations and provides additional modifications and clarifications. The final rule also responds to certain comments submitted in response to the request for comments in the IFR.

  18. Electronic Health Records and US Public Health: Current Realities and Future Promise

    Science.gov (United States)

    Parrish, R. Gibson; Ross, David A.

    2013-01-01

    Electronic health records (EHRs) could contribute to improving population health in the United States. Realizing this potential will require understanding what EHRs can realistically offer to efforts to improve population health, the requirements for obtaining useful information from EHRs, and a plan for addressing these requirements. Potential contributions of EHRs to improving population health include better understanding of the level and distribution of disease, function, and well-being within populations. Requirements are improved population coverage of EHRs, standardized EHR content and reporting methods, and adequate legal authority for using EHRs, particularly for population health. A collaborative national effort to address the most pressing prerequisites for and barriers to the use of EHRs for improving population health is needed to realize the EHR’s potential. PMID:23865646

  19. Gd3+ and calcium sensitive, sodium leak currents are features of weak membrane-glass seals in patch clamp recordings.

    Directory of Open Access Journals (Sweden)

    Adrienne N Boone

    Full Text Available The properties of leaky patch currents in whole cell recording of HEK-293T cells were examined as a means to separate these control currents from expressed sodium and calcium leak channel currents from snail NALCN leak channels possessing both sodium (EKEE and calcium (EEEE selectivity filters. Leak currents were generated by the weakening of gigaohm patch seals by artificial membrane rupture using the ZAP function on the patch clamp amplifier. Surprisingly, we found that leak currents generated from the weakened membrane/glass seal can be surprisingly stable and exhibit behavior that is consistent with a sodium leak current derived from an expressible channel. Leaky patch currents differing by 10 fold in size were similarly reduced in size when external sodium ions were replaced with the large monovalent ion NMDG+. Leaky patch currents increased when external Ca2+ (1.2 mM was lowered to 0.1 mM and were inhibited (>40% to >90% with 10 µM Gd3+, 100 µM La3+, 1 mM Co2+ or 1 mM Cd2+. Leaky patch currents were relatively insensitive (<30% to 1 mM Ni2+ and exhibited a variable amount of block with 1 mM verapamil and were insensitive to 100 µM mibefradil or 100 µM nifedipine. We hypothesize that the rapid changes in leak current size in response to changing external cations or drugs relates to their influences on the membrane seal adherence and the electro-osmotic flow of mobile cations channeling in crevices of a particular pore size in the interface between the negatively charged patch electrode and the lipid membrane. Observed sodium leak conductance currents in weak patch seals are reproducible between the electrode glass interface with cell membranes, artificial lipid or Sylgard rubber.

  20. Smart metering design and applications

    CERN Document Server

    Weranga, K S K; Chandima, D P

    2013-01-01

    Taking into account the present day trends and the requirements, this Brief focuses on smart metering of electricity for next generation energy efficiency and conservation. The contents include discussions on the smart metering concepts and existing technologies and systems as well as design and implementation of smart metering schemes together with detailed examples.

  1. Membrane voltage differently affects mIPSCs and current responses recorded from somatic excised patches in rat hippocampal cultures.

    Science.gov (United States)

    Pytel, Maria; Mozrzymas, Jerzy W

    2006-01-30

    Recent analysis of current responses to exogenous GABA applications recorded from excised patches indicated that membrane voltage affected the GABAA receptor gating mainly by altering desensitization and binding [M. Pytel, K. Mercik, J.W. Mozrzymas, Membrane voltage modulates the GABAA receptor gating in cultured rat hippocampal neurons, Neuropharmacology, in press]. In order investigate the impact of such voltage effect on GABAA receptors in conditions of synaptic transmission, mIPSCs and current responses to rapid GABA applications were recorded from the same culture of rat hippocampal neurons. We found that I-V relationship for mIPSCs amplitudes showed a clear outward rectification while for current responses an inward rectification was seen, except for very low GABA concentrations. A clear shift in amplitude cumulative distributions indicated that outward rectification resulted from the voltage effect on the majority of mIPSCs. Moreover, the decaying phase of mIPSCs was clearly slowed down at positive voltages and this effect was represented by a shift in cumulative distributions of weighted decaying time constants. In contrast, deactivation of current responses was only slightly affected by membrane depolarization. These data indicate that the mechanisms whereby the membrane voltage modulates synaptic and extrasynaptic receptors are qualitatively different but the mechanism underlying this difference is not clear.

  2. The firing patterns of spinal neurons: in situ patch-clamp recordings reveal a key role for potassium currents.

    Science.gov (United States)

    Winlove, Crawford I P; Roberts, Alan

    2012-10-01

    Neuron firing patterns underpin the detection and processing of stimuli, influence synaptic interactions, and contribute to the function of networks. To understand how intrinsic membrane properties determine firing patterns, we investigated the biophysical basis of single and repetitive firing in spinal neurons of hatchling Xenopus laevis tadpoles, a well-understood vertebrate model; experiments were conducted in situ. Primary sensory Rohon-Beard (RB) neurons fire singly in response to depolarising current, and dorsolateral (DL) interneurons fire repetitively. RB neurons exhibited a large tetrodotoxin-sensitive sodium current; in DL neurons, the sodium current density was significantly lower. High-voltage-activated calcium currents were similar in both neuron types. There was no evidence of persistent sodium currents, low-voltage-activated calcium currents, or hyperpolarisation-activated currents. In RB neurons, the potassium current was dominated by a tetraethylammonium-sensitive slow component (I(Ks) ); a fast component (I(Kf) ), sensitive to 4-aminopyridine, predominated in DL neurons. Sequential current-clamp and voltage-clamp recordings in individual neurons suggest that high densities of I(Ks) prevent repetitive firing; where I(Ks) is small, I(Kf) density determines the frequency of repetitive firing. Intermediate densities of I(Ks) and I(Kf) allow neurons to fire a few additional spikes on strong depolarisation; this property typifies a novel subset of RB neurons, and may activate escape responses. We discuss how this ensemble of currents and firing patterns underpins the operation of the Xenopus locomotor network, and suggest how simple mechanisms might underlie the similar firing patterns seen in the neurons of diverse species.

  3. The Pb pollution fingerprint at Lochnagar: The historical record and current status of Pb isotopes

    Energy Technology Data Exchange (ETDEWEB)

    Yang Handong [Environmental Change Research Centre, University College London, Pearson Building, Gower Street, London, WC1E 6BP (United Kingdom)]. E-mail: hyang@geog.ucl.ac.uk; Linge, Kathryn [NERC ICP Facility, School of Earth Sciences and Geography, Kingston University, Penrhyn Road, Kingston upon Thames, Surrey, KT1 2EE (United Kingdom); Rose, Neil [Environmental Change Research Centre, University College London, Pearson Building, Gower Street, London, WC1E 6BP (United Kingdom)

    2007-02-15

    Ratios of {sup 206}Pb/{sup 207}Pb in a Lochnagar sediment core slowly decline from c. 1.32 at 140 cm to c. 1.23 at 9 cm, and then rapidly decline to c. 1.15 at the surface. Ninety percent of the Pb in the surface sediments can be attributed to anthropogenic sources. The {sup 206}Pb/{sup 207}Pb ratio data imply that catchment peat surface contains a higher fraction of anthropogenic Pb than the sediment surface. The {sup 206}Pb/{sup 207}Pb ratios in the surface of the sediment core are consistent with ratios in trapped sediments collected annually between 1998 and 2003. However, there is no significant decline in these recent samples suggesting that the reduction in atmospheric Pb emissions has not yet been recorded by the sediments due to Pb inputs from the catchment. As catchment peats store about 840 kg previously deposited anthropogenic Pb since 1860, it is likely that catchment inputs will continue to affect future {sup 206}Pb/{sup 207}Pb ratios. - Pb previously deposited and stored in Lochnagar catchment has a major affect on contemporary Pb in the lake system.

  4. Direct reading inductance meter

    Science.gov (United States)

    Kolby, R. B. (Inventor)

    1977-01-01

    A direct reading inductance meter comprised of a crystal oscillator and an LC tuned oscillator is presented. The oscillators function respectively to generate a reference frequency, f(r), and to generate an initial frequency, f(0), which when mixed produce a difference equal to zero. Upon connecting an inductor of small unknown value in the LC circuit to change its resonant frequency to f(x), a difference frequency (f(r)-f(x)) is produced that is very nearly a linear function of the inductance of the inductor. The difference frequency is measured and displayed on a linear scale in units of inductance.

  5. Monitoring And Recording Data For Solar Radiation Temperature And Charging Current

    Directory of Open Access Journals (Sweden)

    Aung Bhone Myint

    2015-08-01

    Full Text Available A data logger based on 8051 microcontroller has been implemented in this project to measure the solar radiation temperature and charging current. Development of a low-cost data logger can easily be made and easily be used to convert the analog signal of physical parameters of various test or other purposes of engineering. By using a suitable program code it can be used to read the value digitally with a PC. Our aim is to provide with a module and a software package when installed in a computer one can remotely acquire and monitor several numbers of the same or different types of signals sequentially at a time. Signals obtained from various sensors have been effectively conditioned. Now interfacing these signals using ADC with the Bluetooth module port of a computer satisfies the very goal of data acquisition. Proposed system provides better performance and has low cost versatile portable.

  6. Microcontroller Based Single Phase Digital Prepaid Energy Meter for Improved Metering and Billing System

    Directory of Open Access Journals (Sweden)

    Md. Mejbaul Haque

    2011-10-01

    Full Text Available This paper presents a single phase digital prepaid energy meter based on two microcontrollers and a single phase energy meter IC. This digital prepaid energy meter does not have any rotating parts. The energy consumption is calculated using the output pulses of the energy meter chip and the internal counter of microcontroller (ATmega32. A microcontroller (ATtiny13 is used as a smart card and the numbers of units recharged by the consumers are written in it. A relay system has been used which either isolates or establishes the connection between the electrical load and energy meter through the supply mains depending upon the units present in the smart card.Energy consumption (kWh, maximum demand (kW, total unit recharged (kWh and rest of the units (kWh are stored in the ATmega32 to ensure the accurate measurement even in the event of an electrical power outage that can be easily read from a 20×4 LCD. As soon as the supply is restored, energy meter restarts with the stored values. A single phase prepaid energy meter prototype has been implemented to provide measurement up to 40A load current and 230V line to neutral voltage.Necessary program for microcontrollers are written in c-language and compiled by Win-AVR libc compiler.

  7. The Curing Meter

    DEFF Research Database (Denmark)

    Jensen, Ole Mejlhede

    2006-01-01

    Curing technology concerns adjustment and control of temperature and moisture conditions in hardening structures and elements of concrete. The curing technology comprises e.g. measurement, adjustment and control of the moisture conditions during the early hardening phase of the concrete to achiev...... from concrete surfaces in the early hardening phase. The Concrete Curing Meter is designed for simple and reliable monitoring of water loss from a wet surface of fresh concrete. This new measuring technique has been tested with several prototypes of the Curing Meter.......Curing technology concerns adjustment and control of temperature and moisture conditions in hardening structures and elements of concrete. The curing technology comprises e.g. measurement, adjustment and control of the moisture conditions during the early hardening phase of the concrete to achieve...... an optimal development of properties in the hardening concrete – so-called "moisture curing". Proper moisture curing is vital to concrete but laborious to accomplish and difficult to control at the construction site with present methods. This paper concerns a new method for site measurement of evaporation...

  8. Liquid metal Flow Meter - Final Report

    Energy Technology Data Exchange (ETDEWEB)

    Andersen, C.; Hoogendoom, S.; Hudson, B.; Prince, J.; Teichert, K.; Wood, J.; Chase, K.

    2007-01-30

    Measuring the flow of liquid metal presents serious challenges. Current commercially-available flow meters use ultrasonic, electromagnetic, and other technologies to measure flow, but are inadequate for liquid metal flow measurement because of the high temperatures required by most liquid metals. As a result of the reactivity and high temperatures of most liquid metals, corrosion and leakage become very serious safety concerns. The purpose of this project is to develop a flow meter for Lockheed Martin that measures the flow rate of molten metal in a conduit.

  9. Wheat straw moisture meter based on alterative current impedance method%基于交流阻抗法的小麦秸秆含水率检测仪设计

    Institute of Scientific and Technical Information of China (English)

    郭文川; 杨军; 刘驰; 朱新华

    2013-01-01

    Wheat straw is a main kind of straws in China. Since it contains a large amount of fiber, wheat straw is used to make paper and produce particleboards in different densities. Moreover, high energy content in wheat straw provides an opportunity to convert straw’s heat energy to electric power. Since the unit price of wheat straw is based on weight and straw decays when kept in a high moisture state, moisture content is listed as a main criterion in wheat straw consuming market. It is also an important factor in straw’s application. Therefore, moisture content detection is very important during wheat straw marketing, storing and processing. Since the traditional oven drying method has the major disadvantages for long time measurement and unsuitable for on-site detection in collection fields, developing the new kinds of wheat straw moisture meters with advantages of convenience, rapid measurement and high precision is needed in wheat straw industry. In this study, based on alterative current (AC) impedance method, a straw moisture meter, which can detect impedance, temperature and pressure, was designed with an 8-bit single-chip microcomputer as controller. Experiment was conducted at five moisture content levels from 10.4%to 19.7%at wet basis, temperature range from 5 to 40ºC at 5ºC interval, and three bulk density levels (75.3~101.3 kg/m3) at each moisture content to study the effect of moisture content, temperature and bulk density on impedance. A cubic equation on impedance as functions of moisture content, temperature and bulk density was established. The significance effect of each variable on the regressed equation was analyzed. The results indicate that bulk density has no significant effect on the equation at the significance level of 0.05. Therefore, a cubic equation of impedance with two variables of moisture content and temperature was regressed. The test results showed that the regressed cubic model with two variables can describe the relationship

  10. Simultaneous recording of ATP-sensitive K+ current and intracellular Ca2+ in anoxic rat ventricular myocytes. Effects of glibenclamide.

    Science.gov (United States)

    Russ, U; Englert, H; Schölkens, B A; Gögelein, H

    1996-05-01

    We investigated the temporal relationship between the adenosine triphosphate-sensitive K current (KATP current), hypoxic shortening and Ca accumulation in cardiomyocytes exposed to anoxia or metabolic inhibition. Whole-cell, patch-clamp experiments were performed with nonstimulated isolated rat heart ventricular muscle cells loaded with the Ca-sensitive fluorescent dye 1-[2-(5-carboxyoxazol-2-yl)-6-aminobenzofuran-5-oxy]-2-(2'- amino-5'-methylphenoxy) ethane-N,N,N',N'-tetraacetic acid (fura-2) via the patch pipette. After approximately 8 min anoxia, the KATP current started to rise and reached a maximum of 21.3 +/- 3.7 nA (n = 5, recorded at 0 mV clamp potential) within 1-3 min. At that time hypoxic contracture also occurred. Resting cytoplasmic free calcium (Cai) did not change significantly before hypoxic shortening. After hypoxic contracture, the KATP current decreased and Cai started to rise, reaching about 1 micromol/l. The presence of glibenclamide (10 micromol/l) in the bath reduced the anoxia-induced KATP current by more than 50%, but did not significantly influence the time dependence of current, hypoxic shortening and Cai, or the magnitude of Cai. Metabolic inhibition with 1.5 mmol/l CN resulted in KATP current increase and hypoxic shortening, occurring somewhat earlier than under anoxia, but all other parameters were comparable. In non-patch-clamped cells loaded with fura-2 AM ester and field-stimulated with 1 Hz, 1 micronol/l glibenclamide had no significant effect on the magnitude of the Cai increase caused by exposure of the cells to 1.5 mmol/l CN-. After CN- wash-out in non-patch-clamped cells, Cai declined, oscillated and finally returned to control values. It can be concluded that glibenclamide inhibits anoxia-induced KATP currents only partially and has no significant effect on anoxia-induced rise in resting Cai.

  11. Measuring Neural Entrainment to Beat and Meter in Infants: Effects of Music Background

    Science.gov (United States)

    Cirelli, Laura K.; Spinelli, Christina; Nozaradan, Sylvie; Trainor, Laurel J.

    2016-01-01

    Caregivers often engage in musical interactions with their infants. For example, parents across cultures sing lullabies and playsongs to their infants from birth. Behavioral studies indicate that infants not only extract beat information, but also group these beats into metrical hierarchies by as early as 6 months of age. However, it is not known how this is accomplished in the infant brain. An EEG frequency-tagging approach has been used successfully with adults to measure neural entrainment to auditory rhythms. The current study is the first to use this technique with infants in order to investigate how infants' brains encode rhythms. Furthermore, we examine how infant and parent music background is associated with individual differences in rhythm encoding. In Experiment 1, EEG was recorded while 7-month-old infants listened to an ambiguous rhythmic pattern that could be perceived to be in two different meters. In Experiment 2, EEG was recorded while 15-month-old infants listened to a rhythmic pattern with an unambiguous meter. In both age groups, information about music background (parent music training, infant music classes, hours of music listening) was collected. Both age groups showed clear EEG responses frequency-locked to the rhythms, at frequencies corresponding to both beat and meter. For the younger infants (Experiment 1), the amplitudes at duple meter frequencies were selectively enhanced for infants enrolled in music classes compared to those who had not engaged in such classes. For the older infants (Experiment 2), amplitudes at beat and meter frequencies were larger for infants with musically-trained compared to musically-untrained parents. These results suggest that the frequency-tagging method is sensitive to individual differences in beat and meter processing in infancy and could be used to track developmental changes. PMID:27252619

  12. Multiphase flow metering: 4 years on

    Energy Technology Data Exchange (ETDEWEB)

    Falcone, G.; Hewitt, G.F.; Alimonti, C.; Harrison, B.

    2005-07-01

    Since the authors' last review in 2001 [1], the use of Multiphase Flow Metering (MFM) within the oil and gas industry continues to grow apace, being more popular in some parts of the world than others. Since the early 1990's, when the first commercial meters started to appear, there have been more than 1,600 field applications of MFM for field allocation, production optimisation and mobile well testing. As the authors predicted, wet gas metering technology has improved to such an extent that its use has rapidly increased worldwide. A ''who's who'' of the MFM sector is provided, which highlights the mergers in the sector and gives an insight into the meters and measurement principles available today. Cost estimates, potential benefits and reliability in the field of the current MFM technologies are revisited and brought up to date. Several measurements technologies have resurfaced, such as passive acoustic energy patterns, infrared wavelengths, Nuclear Magnetic Resonance (NMR) and Electrical Capacitance Tomography (ECT), and they are becoming commercial. The concept of ''virtual metering'', integrated with ''classical MFM'', is now widely accepted. However, sometimes the principles of the MFM measurements themselves are forgotten, submerged in the sales and marketing hype. (author) (tk)

  13. Single-channel current recordings of acetylcholine receptors in electroplax isolated from the Electrophorus electricus Main and Sachs' electric organs.

    Science.gov (United States)

    Pasquale, E B; Udgaonkar, J B; Hess, G P

    1986-01-01

    Extensive chemical kinetic measurements of acetylcholine receptor-controlled ion translocation in membrane vesicles isolated from the electroplax of Electrophorus electricus have led to the proposal of a minimum model which accounts for the activation, desensitization, and voltage-dependent inhibition of the receptor by acetylcholine, suberyldicholine, and carbamoylcholine. Comparison of chemical kinetic measurements of the dynamic properties of the acetylcholine receptor in vesicles with the properties of the receptor in cells obtained from the same organ and animal have been hampered by an inability to make the appropriate measurements with Electrophorus electricus electroplax cells. Here we report a method for exposing and cleaning the surface of electroplax cells obtained from both the Main electric organ and the organ of Sachs and the results of single-channel current recordings which have now become possible. The single-channel current recordings were made in the presence of either carbamoylcholine or suberyldicholine, as a function of temperature and transmembrane voltage. Both the channel open times and the single-channel conductance were measured. The data were found to be consistent with the model based on chemical kinetic measurements using receptor-rich membrane vesicles prepared from the Main electric organ of E. electricus.

  14. How to use your peak flow meter

    Science.gov (United States)

    Peak flow meter - how to use; Asthma - peak flow meter; Reactive airway disease - peak flow meter; Bronchial asthma - peak flow meter ... If your airways are narrowed and blocked due to asthma, your peak flow values drop. You can ...

  15. De Minimis Thresholds for Federal Building Metering Appropriateness

    Energy Technology Data Exchange (ETDEWEB)

    Henderson, Jordan W. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

    2015-03-31

    The U.S. Department of Energy (DOE) is required by statute and Presidential Memorandum to establish guidelines for agencies to meter their Federal buildings for energy (electricity, natural gas, and steam) and water. See 42 U.S.C. § 8253(e). DOE issued guidance in February 2006 on the installation of electric meters in Federal buildings. A recent update to the 2006 guidance accounts for more current metering practices within the Federal Government. The updated metering guidance specifies that all Federal buildings shall be considered “appropriate” for energy or water metering unless identified for potential exclusion. In developing the updated guidance to carry out the statue, Congress also directed DOE to (among other things) establish exclusions from the metering requirements based on the de minimis quantity of energy use of a Federal building, industrial process, or structure. This paper discusses the method used to identify de minimis values.

  16. Design and Implementation of Intel ligent Water Meter Reading System

    Institute of Scientific and Technical Information of China (English)

    XU Tao-tao

    2016-01-01

    With the rise of intelligent residential housing project and the implement of intelligent meter reading system, the four become the typical representative at the same time , they also become the short board of the old residential intelligent direction and constraints .As one of the four meter is an important measurement tool to save water resources .In the process of the development of society and technology , different types of meter reading methods have been derived , but there are still many problems , such as difficulty , time consuming , error copy , misreading .With the current mature image processing technology , the Internet technology and the rapid development of handheld intelligent terminal , the paper develop a meter reading system base on the Android system.The system can reduce the work intensity and the cost of meter reading , and it can make up the blank which old district and the mechanical meter reading can not be intelligent .

  17. The Early Development of Electronic pH Meters

    Science.gov (United States)

    Hines, Wallis G.; de Levie, Robert

    2010-01-01

    A 19-year-old undergraduate at the University of Chicago, Kenneth Goode, in 1921 came up with the idea of an electronic pH meter, worked out some of its initial problems, and set in motion an international scientific effort that culminated in the current, wide availability of electronic pH meters. Except for the replacement of vacuum tubes by…

  18. Streamlining Smart Meter Data Analytics

    DEFF Research Database (Denmark)

    Liu, Xiufeng; Nielsen, Per Sieverts

    2015-01-01

    with the complexity of data processing and data analytics. The system offers an information integration pipeline to ingest smart meter data; scalable data processing and analytic platform for pre-processing and mining big smart meter data sets; and a web-based portal for visualizing data analytics results. The system......Today smart meters are increasingly used in worldwide. Smart meters are the advanced meters capable of measuring customer energy consumption at a fine-grained time interval, e.g., every 15 minutes. The data are very sizable, and might be from different sources, along with the other social......-economic metrics such as the geographic information of meters, the information about users and their property, geographic location and others, which make the data management very complex. On the other hand, data-mining and the emerging cloud computing technologies make the collection, management, and analysis...

  19. Micro-gen metering solutions

    Energy Technology Data Exchange (ETDEWEB)

    Elland, J.; Dickson, J.; Cranfield, P.

    2003-07-01

    This report summarises the results of a project to investigate the regulation of domestic electricity metering work and identify the most economic options for micro-generator installers to undertake work on electricity meters. A micro-generation unit is defined as an energy conversion system converting non-electrical energy into electrical energy and can include technologies such as photovoltaic systems, small-scale wind turbines, micro-hydroelectric systems, and combined heat and power systems. Details of six tasks are given and cover examination of the existing framework and legal documentation for metering work, the existing technical requirements for meter operators, meter operator personnel accreditation, appraisal of options for meter changes and for micro-generation installation, document change procedures, industry consultation, and a review of the costs implications of the options.

  20. Acetylcholine receptor (from Electrophorus electricus): a comparison of single-channel current recordings and chemical kinetic measurements.

    Science.gov (United States)

    Hess, G P; Kolb, H A; Läuger, P; Schoffeniels, E; Schwarze, W

    1984-09-01

    We report a direct comparison between two types of measurements of the dynamic properties of the acetylcholine receptor: single-channel currents recorded using the patch-clamp technique and chemical kinetic measurements. Electrophorus electricus electroplax cells, and membrane vesicles prepared from these cells, were used. Such a comparison, and single-channel currents recorded from these cells, have not previously been reported. We first give the theoretical basis for the comparison and define the conditions under which the comparisons are elegantly simple. We relate (i) measurements of currents through receptor channels in the cell membranes to measurements of the rates of ion translocation through the receptor channels in vesicles and (ii) measurements of the lifetimes of receptor states (for instance, the lifetime of the active state of the receptor--i.e., the state in which it can form open channels) to rate coefficients obtained in chemical kinetic measurements (for instance, those for the interconversions between different states of the receptor). In eel Ringer's solution we have found the single-channel conductance (gamma) of the receptor in E. electricus electroplax cells to be 53 pS. From this value, a specific reaction rate for ion translocation, J, of 5 X 10(7) M-1 X sec-1 was calculated. When membrane vesicles prepared from the electroplax cells and the same solution compositions were used, chemical kinetic measurements gave a J value of 3 X 10(7) M-1 X sec-1. The agreement between the two measurements is important because (i) they reflect different experimental conditions, which require different assumptions in interpreting the results, and (ii) it indicates that the two techniques can be used to obtain complementary information: the methods have different time resolutions and can be used in different ranges of acetylcholine concentrations.

  1. Data collected by current-and-pressure-recording inverted echo sounders (CPIES) and current meter moorings in Drake Passage as part of cDrake from November 2007 to December 2011 (NCEI Accession 0121256)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains measurements collected in Drake Passage between November 2007 and December 2011 as part of the cDrake progam funded by the National Science...

  2. A more intelligent meter

    Energy Technology Data Exchange (ETDEWEB)

    Siuru, B.

    1996-09-01

    A utility systems analyst viewing a multicolor graph on a computer screen sees something awry in a customer`s home. The furnace is running in the midst of summer. The customer is notified and finds the problem, an air conditioner vent blowing on a thermostat. Next the analyst finds a refrigerator using excessive amounts of electricity. This time it was a leaky gasket and clogged heat exchanger fins. Later a flooded basement is avoided by discovering a faulty sump pump. The analyst was using the Non-Intrusive Appliance Load Monitoring System (NIALMS). As the name implies, NIALMS allows utilities to learn more about where and when customers use electrical power and how much without entering their homes to install monitoring devices on each appliance. It was developed under the sponsorship of the Electric Power Research Institute with assistance from Empire State Electric Energy Research Corp., New York State Energy Research and Development Authority, Consolidated Edison Co. and Rochester Gas & Electric Co. The meter is described.

  3. Single-channel and whole-cell recordings of mitogen-regulated inward currents in human cloned helper T lymphocytes.

    Science.gov (United States)

    Kuno, M; Goronzy, J; Weyand, C M; Gardner, P

    Cytoplasmic free Ca2+ [( Ca2+]i) appears to be an important signal for DNA synthesis in early stages of lymphocyte activation. In spite of many experimental studies which employ fluorescent Ca2+ indicator dye to demonstrate an early increase of [Ca2+]i in T-lymphocytes after stimulation with lectins, specific antigens, and monoclonal antibodies to T-lymphocyte receptors, the mechanism responsible for the rise of [Ca2+]i is unknown. We have used the extracellular patch clamp technique to investigate this mechanism. Unitary inward currents, mediated by Ca2+ or Ba2+, were recorded in the membrane of T-lymphocytes. The inward current channel was characterized by a conductance of 7 pS and extrapolated reversal potential (Erev) 110 mV positive to resting potential (Vr). While gating kinetic parameters were not affected by membrane potential changes, the probability of channel opening markedly increased upon activation of the T-lymphocyte by the mitogenic lectin, phytohaemagglutinin (PHA). PHA also evoked a cadmium-sensitive, inward Ba2+ current on whole-cell clamp. We suggest that this mitogen-regulated channel introduces Ca2+ into the cytoplasm upon activation and represents a new class of voltage-independent Ca2+ channels.

  4. Analysis of lightning-ionosphere interaction using simultaneous records of source current and 380 km distant electric field

    Science.gov (United States)

    Azadifar, Mohammad; Li, Dongshuai; Rachidi, Farhad; Rubinstein, Marcos; Diendorfer, Gerhard; Schulz, Wolfgang; Pichler, Hannes; Rakov, Vladimir A.; Paolone, Mario; Pavanello, Davide

    2017-06-01

    We present simultaneous current and wideband electric field waveforms at 380 km associated with upward lightning flashes initiated from the Säntis Tower, Switzerland. To the best of our knowledge, the dataset presented in this study includes the first simultaneous records of lightning currents and associated fields featuring ionospheric reflections for natural upward flashes, and the longest distance at which natural upward lightning fields have been measured simultaneously with their causative currents. The intervals between the groundwave and skywave arrival times are used to estimate ionospheric reflection heights during day and night times using the so-called zero-to-zero and peak-to-peak methods. During daytime, the mean ionospheric reflection heights, obtained using the two different delay estimation approaches, are about 78 and 76 km, corresponding to the D layer. The mean reflection height at nighttime is about 90 and 89 km, corresponding to the E layer. We present a full-wave, finite-difference time-domain (FDTD) analysis of the electric field propagation including the effect of the ionospheric reflections. The FDTD simulation results are compared with the measured fields associated with upward flashes initiated from the Säntis Tower. It is found that the model reproduces reasonably well the measured waveforms and the times of arrival of the one-hop and two-hop skywaves relative to the groundwave.

  5. Current source density analysis: methods and application to simultaneously recorded field potentials of the rabbit's visual cortex.

    Science.gov (United States)

    Rappelsberger, P; Pockberger, H; Petsche, H

    1981-01-01

    This paper deals with the application of current source density (CSD) analysis to simultaneously recorded intracortical field potentials of the rabbit's visual cortex. Recordings were made with multielectrodes with either 8 contacts at distances of 300 microns, or 16 contacts at distances of 150 microns on one carrier needle. For synchronized activities, a spatial resolution of 150 microns turned out to be sufficient to record all depth-varying details of the field potentials; for seizure potentials even a spacing of 300 microns was adequate in most cases. For practical application, an appropriate spacing of the measuring points has to be chosen for a satisfactory estimation of the first and second derivatives of the field potentials. For this reason an interpolation procedure is applied to reduce the spacing from 300 microns or 150 microns electrode contact distances, respectively, and to obtain intermediate values at 75 microns distances. With this spacing satisfactory estimations of the second derivative are obtained. Theoretically, CSD analysis has to be made three-dimensionally, but under certain conditions which are discussed, a one-dimensional analysis can be applied. An unknown quantity is sigma z, the vertical conductivity. It turned out that average values obtained from different experiments are not representative and that the vertical conductivity has to be measured in every experiment. This is caused by the great individual differences of the cortices even if the same stereotactic coordinates are chosen. Therefore, in every experiment relative conductivity measurements are performed. The influence of different conductivity values within the various layers and the influence of a conductivity gradient is discussed and demonstrated by examples.

  6. Wireless MSEB Meter Reading Vehicle

    Directory of Open Access Journals (Sweden)

    Pooja U.Shinde

    2014-04-01

    Full Text Available The electricity is very essential in day to day life. Most of industries are running with electricity. In commercial areas also electricity plays very vital role and hence electricity is backbone of any developing nation. To measure the consumed electricity and generate Electricity bill, the energy meters are provided to each and every consumer. This project is use to take meter reading wirelessly by using transceiver which provides accuracy and speed in MSEB meter reading. In this work, Micro controller plays the main role. This circuit contains the LCD, RF transmitter, RF receiver, Energy meter, switch, RS 232 etc. This project uses one Microcontroller, LCD, RF transceiver module, energy meter and relay for connecting load. Meter reading is the technology of automatically collecting data from energy meter and transferring that data to a central database for billing and/or analyzing. This saves employee trips and means that billing can be based on actual consumption rather than on an estimate based on previous consumption, giving customers better control of their use of electric energy. The Transmitter is connected to the meter and it counts the pulses from it and displays it over the LCD. It transmits the data over radio frequency. This network technology overcome all the difficulties of earlier billing system and become more advantageous and accurate.

  7. Acoustic Ground-Impedance Meter

    Science.gov (United States)

    Zuckerwar, A. J.

    1983-01-01

    Helmoltz resonator used in compact, portable meter measures acoustic impedance of ground or other surfaces. Earth's surface is subject of increasing acoustical investigations because of its importance in aircraft noise prediction and measurment. Meter offers several advantages. Is compact and portable and set up at any test site, irrespective of landscape features, weather or other environmental condition.

  8. Genetic Counselors’ Current Use of Personal Health Records-Based Family Histories in Genetic Clinics and Considerations for Their Future Adoption

    OpenAIRE

    Widmer, Chaney; DeShazo, Jonathan P.; Bodurtha, Joann; Quillin, John; Creswick, Heather

    2012-01-01

    Given the widespread adoption of electronic medical records and recent emergence of electronic family history tools, we examined genetic counselors’ perspectives on the emerging technology of the personal health record (PHR)-based family history tool that links to an electronic medical record (EMR). Two-hundred thirty-three genetic counselors responded to an on-line survey eliciting current use of electronic family history (EFH) tools and familiarity with PHR-based family history tools. Addit...

  9. multichannel distribution meter: a veritable solution in power ...

    African Journals Online (AJOL)

    eobe

    serious effect on power generation, transmission and distribution [5] due to possible ... while a light emitting diode (LED), a light dependent resistor (LDR), and a ... measurement and comparison of voltage or current changes in the meters to ...

  10. The Program of Getting the Data from the Vacuum Meter

    Institute of Scientific and Technical Information of China (English)

    YANGYang; CHENLiaoyuan; LIQiang

    2003-01-01

    In HL-2A tokamak, a program to get the data from the vacuum meter has been developed in 2003. The program is used to read and record the data of the neutral gas pressure during the experiment. So how to communicate between a local computer and the vacuum meter via serial-port communication is introduced in this paper. The architecture of the system is shown in Fig. 1.

  11. Improvised Energy Meter Supporting Wireless Data Transfer

    Directory of Open Access Journals (Sweden)

    E. Aravind

    2014-09-01

    Full Text Available The purpose of the study is to design a prototype model of an energy meter which has the ability of wireless data transfer such as sending emails and SMS. In the current energy monitoring scenario, manual energy meter monitoring is a cumbersome and tedious process for the electricity boards. It involves huge manpower and higher expenditure for a simple task. Manual energy meter monitoring is highly erroneous and amounts to great losses for both the consumers and the electricity boards. In this conventional technique, losing the bills and delay in the arrival of the official to note down the reading are common affairs. Complete digitalization of bill delivery and transaction processes eliminates such uneventful circumstances. The manual reading method is inefficient to meet the raising power demands. The invention described here has the potential to wipe of manual energy meter reading from the scene and replace it with a sophisticated automated system facilitating remote monitoring of energy consumption. In this proposed system, the Raspberry Pi performs all the essential functions of a microcontroller and supports features like sending emails and SMS with the aid of Wi-Fi dongle and GSM modem. This automated system enables continuous monitoring of energy consumption.

  12. METER FOR SHALLOW WVESTEGATON

    African Journals Online (AJOL)

    2005-09-06

    Sep 6, 2005 ... Transitor Likewise for Transistor 'l“,, the maximum expected base current was calculated ..... Principles of Inverter Circuits John. Wily and Sons Inc.,London ... Analysis, Elandsgracht/Xmsterdam, Holland. Schuler, A. C. (1979): ...

  13. Physical, chemical, current profile, water pressure, sea surface temperature, meteorological, and other data from current meters, bottle casts, pressure gauges, meteorological sensors, current meters, and other instruments from the ANDRE NIZERY and other platforms from the TOGA Area - Atlantic as part of the Seasonal Response of the Equatorial Atlantic Experiment/Francais Ocean Et Climat Dans L'Atlantique Equatorial (SEQUAL/FOCAL) project from 01 January 1964 to 31 December 1985 (NODC Accession 8700150)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Physical, chemical, current profile, water pressure, sea surface temperature, meteorological, and other data were collected from the ANDRE NIZERY and other platforms...

  14. Problems and Countermeasures in Application of Vehicle Driving Record-meter%汽车行驶记录仪应用中存在的问题及对策

    Institute of Scientific and Technical Information of China (English)

    宋华

    2014-01-01

    汽车行驶记录仪(以下简称记录仪)是一种能对车辆行驶全过程同步记录、监控车辆运行状态,预防交通事故发生的高新技术产品。早在20世纪70年代,发达国家就开始安装使用记录仪。文章针对汽车行驶记录仪的应用情况,在对比国内外的相关数据的基础上,提出了应对措施。%(hereinafter referred to as "recorder") A vehicle driving recorder is a high-tech product is to synchronously record and monitor the whole process of vehicle driving the vehicle running state and prevent traffic accidents. In the early 1970 s, the developed countries began to install and use the recorder. This paper describes in contrast with based on the relevant data at home and abroad, the countermeasures against the application of vehicle data recorder.

  15. Smart metering: strategy and implementation in Germany; Smart-Metering: Strategie und Umsetzung in Deutschland

    Energy Technology Data Exchange (ETDEWEB)

    Dorn, Torsten [Logica Deutschland (Germany). Energy and Utilities; Energie-Service-Alliance (ENSEA e.V.) (Germany)

    2009-11-15

    While a number of publications and lectures on smart metering have already provided detailed coverage of the legal requirements, this is not the case for its implementation strategies. Coherent concepts for this task are still virtually inexistent. Any promising strategy to this end must take account of the fact that there are motives and interests involved which go far beyond the views currently prevailing in the sector. Despite the national differences, experiences gained in other European countries can offer important insights for the implementation of smart metering in Germany.

  16. Investigation and Comparison of Separate Meter-In Separate Meter-Out Control Strategies

    DEFF Research Database (Denmark)

    Pedersen, Henrik C.; Andersen, Torben Ole; Skoubo, Tobias

    2014-01-01

    . The possibility to independently control the meter-in and meter-out side not only increase the functionality of the system, but also opens up for better performance and/or lowered energy consumption. The focus of the current paper is therefore on investigation and comparison of what may be obtained using......, the control strategies are discussed and severalH¥ controllers are designed, for which both simulation and experimental results are presented. The controllers are evaluated with regard to performance and robustness and compared to a simple SISO control. Based on the findings, the possibilities and limitations...

  17. Smart Metering System for Microgrids

    DEFF Research Database (Denmark)

    Palacios-Garcia, Emilio; Guan, Yajuan; Savaghebi, Mehdi

    2015-01-01

    Smart meters are the cornerstone in the new conception of the electrical network or Smart Grid (SG), providing detailed information about users' energy consumption and allowing the suppliers to remotely collect data for billing. Nevertheless, their features are not only useful for the energy...... will expose an example of Smart Meters integration in a Microgrid scenario, which is the Intelligent Microgrid Lab of Aalborg University (AAU). To do this, first the installation available in the Microgrid Lab will be introduced. Then, three different test scenarios and their respective results...... will be presented, regarding the capabilities of this system and the advantages of integration the Smart Meters information in the Microgrid control....

  18. The Portable Metal Detecting Meter

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    Using backscatter principle of ray, one kind of the portable metal detecting meters, which comprises five parts, i.e., a ray-emitter, a ray acceptor, discriminating and forming pulse circuits, storing and processing data units, a light and sound alarm device, and a power supply, had been invented. It can judge existence of danger articles as weapons and daggers hided inside luggages, pracels, or clothing of passengers or persons without opening packing. The detecting distance between the meter and danger objects, at present, is about one meter, but can be extended adopting improvement for key parts. For comparison, up to now, in the whole world, known information

  19. AN INDUCTION SENSOR FOR MEASURING CURRENTS OF NANOSECOND RANGE

    Directory of Open Access Journals (Sweden)

    S. P. Shalamov

    2016-11-01

    Full Text Available Purpose. A current meter based on the principle of electromagnetic induction is designed to register the current flowing in the rod lightning. The aim of the article is to describe the way of increasing the sensitivity of the converter by means of their serial communication. Methodology. The recorded current is in the nanosecond range. If compared with other methods, meters based on the principle of electromagnetic induction have several advantages, such as simplicity of construction, reliability, low cost, no need in a power source, relatively high sensitivity. Creation of such a meter is necessary, because in some cases there is no possibility to use a shunt. Transient properties of a meter are determined by the number of turns and the constant of integration. Sensitivity is determined by measuring the number of turns, the coil sectional area, the core material and the integration constant. For measuring the magnetic field pulses with a rise time of 5 ns to 50 ns a meter has turns from 5 to 15. The sensitivity of such a meter is low. When the number of turns is increased, the output signal and the front increase. Earlier described dependencies were used to select the main parameters of the converter. It was based on generally accepted and widely known equivalent circuit. The experience of created earlier pulse magnetic field meters was considered both for measuring the magnetic fields, and large pulse current. Originality. Series connection of converters has the property of a long line. The level of the transient response of the meter is calculated. The influence of parasitic parameters on the type of meter transient response is examined. The shown construction was not previously described. Practical value. The results of meter implementation are given. The design peculiarities of the given measuring instruments are shown.

  20. The One-Meter Dash

    Science.gov (United States)

    Brooks, Mattie J.

    1977-01-01

    A game for two teams employs dice, meter sticks, and Cuisenaire rods. The game gives practice in number facts, regrouping, and use of rods; it can also serve as an introduction to the metric system. (SD)

  1. Healthcare Energy Metering Guidance (Brochure)

    Energy Technology Data Exchange (ETDEWEB)

    2011-07-01

    This brochure is intended to help facility and energy managers plan and prioritize investments in energy metering. It offers healthcare-specific examples of metering applications, benefits, and steps that other health systems can reproduce. It reflects collaborative input from the U.S. Department of Energy national laboratories and the health system members of the DOE Hospital Energy Alliance's Benchmarking and Measurement Project Team.

  2. Secure Metering Schemes

    Science.gov (United States)

    Blundo, Carlo; Cimato, Stelvio; Masucci, Barbara

    The current trend on the Internet suggests that the majority of revenues of web sites come from the advertising potential of the World Wide Web. Advertising is arguably the type of commercial information exchange of the greatest economic importance in the real world. Indeed, advertising is what funds most other forms of information exchange, including radio stations, television stations, cable networks, magazines, and newspapers. According to the figures provided by the Internet Advertising Bureau [24] and Price Waterhouse Coopers [43], advertising revenue results for the first 9 months of 2004 totaled slightly over 7.0 billion dollars.

  3. Design of smart meter terminal based on low voltage power line carrier-current communication%基于低压电力线载波通信的智能电表终端设计

    Institute of Scientific and Technical Information of China (English)

    韦正丛; 宋树祥; 梁承福; 何婷婷

    2012-01-01

    以国产芯片PL3201为核心,采用ADE7755为计量芯片设计实现单相智能电表.该设计克服了以往必须采用采集器才能对用户数据采集的远程抄表系统的技术难题.其特点在于直接采用电力线通信,不需再进行专线安装,降低了产品研发成本.%Taking domestic chip PL3201 as the coret and adopting ADE7755 as the measurement chip to design and implement single-phase smart meter. This design can overcome the difficulties, about which the long-distance meter reading system must use data collector. The design directly used the power lines of communication, did not need to install the special communication line, reduced the product research and development cost.

  4. Status of Net Metering: Assessing the Potential to Reach Program Caps

    Energy Technology Data Exchange (ETDEWEB)

    Heeter, J.; Gelman, R.; Bird, L.

    2014-09-01

    Several states are addressing the issue of net metering program caps, which limit the total amount of net metered generating capacity that can be installed in a state or utility service territory. In this analysis, we examine net metering caps to gain perspective on how long net metering will be available in various jurisdictions under current policies. We also surveyed state practices and experience to understand important policy design considerations.

  5. Status of Net Metering: Assessing the Potential to Reach Program Caps (Poster)

    Energy Technology Data Exchange (ETDEWEB)

    Heeter, J.; Bird, L.; Gelman, R.

    2014-10-01

    Several states are addressing the issue of net metering program caps, which limit the total amount of net metered generating capacity that can be installed in a state or utility service territory. In this analysis, we examine net metering caps to gain perspective on how long net metering will be available in various jurisdictions under current policies. We also surveyed state practices and experience to understand important policy design considerations.

  6. Arduino based radiation survey meter

    Energy Technology Data Exchange (ETDEWEB)

    Rahman, Nur Aira Abd, E-mail: nur-aira@nm.gov.my; Lombigit, Lojius; Abdullah, Nor Arymaswati; Azman, Azraf; Dolah, Taufik; Jaafar, Zainudin; Mohamad, Glam Hadzir Patai; Ramli, Abd Aziz Mhd; Zain, Rasif Mohd; Said, Fazila; Khalid, Mohd Ashhar; Taat, Muhamad Zahidee [Malaysian Nuclear Agency, 43000, Bangi, Selangor (Malaysia); Muzakkir, Amir [Sinaran Utama Teknologi Sdn Bhd, 43650, Bandar Baru Bangi, Selangor (Malaysia)

    2016-01-22

    This paper presents the design of new digital radiation survey meter with LND7121 Geiger Muller tube detector and Atmega328P microcontroller. Development of the survey meter prototype is carried out on Arduino Uno platform. 16-bit Timer1 on the microcontroller is utilized as external pulse counter to produce count per second or CPS measurement. Conversion from CPS to dose rate technique is also performed by Arduino to display results in micro Sievert per hour (μSvhr{sup −1}). Conversion factor (CF) value for conversion of CPM to μSvhr{sup −1} determined from manufacturer data sheet is compared with CF obtained from calibration procedure. The survey meter measurement results are found to be linear for dose rates below 3500 µSv/hr.

  7. Arduino based radiation survey meter

    Science.gov (United States)

    Rahman, Nur Aira Abd; Lombigit, Lojius; Abdullah, Nor Arymaswati; Azman, Azraf; Dolah, Taufik; Muzakkir, Amir; Jaafar, Zainudin; Mohamad, Glam Hadzir Patai; Ramli, Abd Aziz Mhd; Zain, Rasif Mohd; Said, Fazila; Khalid, Mohd Ashhar; Taat, Muhamad Zahidee

    2016-01-01

    This paper presents the design of new digital radiation survey meter with LND7121 Geiger Muller tube detector and Atmega328P microcontroller. Development of the survey meter prototype is carried out on Arduino Uno platform. 16-bit Timer1 on the microcontroller is utilized as external pulse counter to produce count per second or CPS measurement. Conversion from CPS to dose rate technique is also performed by Arduino to display results in micro Sievert per hour (μSvhr-1). Conversion factor (CF) value for conversion of CPM to μSvhr-1 determined from manufacturer data sheet is compared with CF obtained from calibration procedure. The survey meter measurement results are found to be linear for dose rates below 3500 µSv/hr.

  8. Metering in the gas supply sector; Metering in der Gasversorgung

    Energy Technology Data Exchange (ETDEWEB)

    Wernekinck, U. [RWE Westfalen-Weser-Ems, Recklinghausen (Germany)

    2007-10-15

    The new conditions of competition in the gas supply sector have strongly increased the requirements on gas grid operators. Mainly an exact gas metering and -accouting will become more and more important. The systems and procedures are presented in detail in this contribution. (GL)

  9. Justification of the Utility of Introducing Smart Meters in Latvia

    Science.gov (United States)

    Kunickis, M.; Dandens, A.; Bariss, U.

    2015-12-01

    Automatic data reading from smart meters is being developed in many parts of the world, including Latvia. The key drivers for that are developments of smart technologies and economic benefits for consumers. Deployment of smart meters could be launched in a massive scale. Several pilot projects were implemented to verify the feasibility of smart meters for individual consumer groups. Preliminary calculations indicate that installation of smart meters for approximately 23 % of electricity consumers would be economically viable. Currently, the data for the last two years is available for an in-depth mathematical analysis. The continuous analysis of consumption data would be established, when more measurements from smart meters are available. The extent of introduction of smart meters should be specified during this process in order to gain the maximum benefit for the whole society (consumers, grid companies, state authorities), because there are still many uncertain and variable factors. For example, it is necessary to consider statistical load variations by hour, dependence of electricity consumption on temperature fluctuations, consumer behaviour and demand response to market signals to reduce electricity consumption in the short and long term, consumer's ambitions and capability to install home automation for regulation of electricity consumption. To develop the demand response, it is necessary to analyse the whole array of additional factors, such as expected cost reduction of smart meters, possible extension of their functionality, further development of information exchange systems, as well as standard requirements and different political and regulatory decisions regarding the reduction of electricity consumption and energy efficiency.

  10. Direct-reading inductance meter

    Science.gov (United States)

    Kolbly, R. B.

    1977-01-01

    Meter indicates from 30 nH to 3 micro H. Reference inductor of 15 micro H is made by winding 50 turns of Number 26 Formvar wire on Micrometal type 50-2 (or equivalent) core. Circuit eliminates requirement for complex instrument compensation prior to taking coil inductance measurement and thus is as easy to operate as common ohmmeter.

  11. Automated monitoring of milk meters

    NARCIS (Netherlands)

    Mol, de R.M.; Andre, G.

    2009-01-01

    Automated monitoring might be an alternative for periodic checking of electronic milk meters. A computer model based on Dynamic Linear Modelling (DLM) has been developed for this purpose. Two situations are distinguished: more milking stands in the milking parlour and only one milking stand in the m

  12. Smart metering. Conformance tests for electricity meters; Smart Metering. Konformitaetstests an Stromzaehlern

    Energy Technology Data Exchange (ETDEWEB)

    Bormann, Matthias; Pongratz, Siegfried [VDE Pruef- und Zertifizierungsinstitut, Offenbach (Germany)

    2012-07-01

    Introduction of communication technologies into today's energy network enables the interworking between the domains of smart metering, smart grid, smart home and e-mobility as well as the creation and provisioning of new innovative services such as efficient load adjustment. Due to this convergence the new energy networks are becoming increasingly complex. Ensuring the interworking between all network elements (e.g. electricity meters, gateways) in these smart energy networks is of utmost importance. To this end conformance and interoperability tests have to be defined to ensure that services work as expected. (orig.)

  13. A combined vector and scalar potential method for 3D magnetic fields and transient Eddy current effects in recording head coils

    Energy Technology Data Exchange (ETDEWEB)

    Hrkac, G. [Department of Engineering Materials, University of Sheffield, Western Bank, Sheffield (United Kingdom)]. E-mail: g.hrkac@sheffield.ac.uk; Schrefl, T. [Department of Engineering Materials, University of Sheffield, Western Bank, Sheffield (United Kingdom); Schabes, M. [Hitachi San Jose Research Center, Hitachi Global Storage Technologies, San Jose, CA 95193 (United States)

    2006-10-01

    A mixed 3D finite element vector and scalar potential method was developed to treat inhomogeneities in coils of recording heads. It is assumed that in the yoke of the recording head the change of magnetization, generates a magnetic field that leads to Eddy current effects in the coil. The problem is separated into two regions, a conducting (the coil) and in a non-conducting one. For the conducting region we solve a vector potential diffusion equation with all contributing currents as a source term, including the Eddy currents produced by the yoke and for the non-conducting region a scalar potential partial differential equation is solved. To combine the vector and the scalar potential method special boundary conditions are implemented. The combined system of partial differential equations are solved simultaneously with a finite element/boundary element method.

  14. Current knowledge of the Tardigrada of Svalbard with the first records of water bears from Nordaustlandet (High Arctic

    Directory of Open Access Journals (Sweden)

    Krzysztof Zawierucha

    2013-11-01

    Full Text Available The first investigations of the tardigrades of Svalbard took place in the early 20th century and 30 papers on the subject have been published to date. In this article, we summarize available information on the distribution of tardigrades in this Arctic archipelago with remarks on the dubious species and records. Additionally, we examined 28 new moss, lichen and soil samples collected from the islands of Nordaustlandet, Edgeøya and Prins Karls Forland. These samples yielded 324 specimens, 15 exuvia and 132 free-laid eggs belonging to 16 limnoterrestrial species (Heterotardigrada and Eutardigrada. These include five first records of water bears from Nordaustlandet, eight new records for Edgeøya and four for Prince Karls Forland. The most dense population of tardigrades was found in a sample with 253 specimens/10 g of dry material and the least dense population in a sample with three specimens/10 g of dry material. The most frequently recorded species in samples collected in this study were Testechiniscus spitsbergensis Scourfield, 1897, Macrobiotus harmsworthi harmsworthi Murray, 1907, and M. islandicus islandicus Richters, 1904. This article also provides the first ever scanning electron microscope photomicrographs of Tenuibiotus voronkovi Tumanov, 2007.

  15. CURRENT AND HISTORICAL RECORDS OF PERUVIAN DIVING-PETREL PELECANOIDES GARNOTII (LESSON, 1828 (PROCELLARIIFORMES, PELECANOIDIDAE IN PERU

    Directory of Open Access Journals (Sweden)

    Figueroa, Judith

    2011-01-01

    Full Text Available Between 2005 and 2010, 57 new records of the Peruvian diving-petrel Pelecanoides garnotii (Lesson, 1828 were recorded off the coast of Piura, Lambayeque, La Libertad, Ancash and Lima regions. Group size ranged from one to ten individuals which were found feeding or resting on the sea surface. New records occurred mainly at noon at a distance from the coast of 6.1 km to 51.02 km. We also found a greater record between September and November, falling sharply in December which could be related to its breeding activity. Based on historical information, the presence of P. garnotii in Peru was known from Lobos de Tierra island (Lambayeque, 06°28'S to Islay (Arequipa, 17°01'S, in a range of 1570 km. With the data gathered during this study from the north and complemented with other records to the south, we get an approximate range of 1850 km, extending northward its range about 126 km, from Lobos de Tierra to Sechura (Piura, 05°29'S, and southward about 197 km, from Islay to Boca del Río (Tacna, 18°19'S. Due to the frequency of observations obtained, we suggest the possibility of the existence of at least one additional breeding colony in the north and one in the central coast of Peru. On the other hand, because of the continued loss of nesting areas by guano harvesting activity, we propose the establishment of intangible islands and points where guano extraction must be banned with the aim of providing P. garnotii more areas suitable for breeding and growing.

  16. Spectral characteristics of the coastal currents off Thal, Bombay during a fair day

    Digital Repository Service at National Institute of Oceanography (India)

    Suryanarayana, A; Swamy, G.N.

    A typical one-day record of currents measured every 20 min. with a direct reading current meter at an anchored station of mean water depth about 8 m off Thal (Bombay Coast, India) during a fair day was subjected to spectral analysis to identify...

  17. Federal Building Metering Guidance (per 42 U.S.C. 8253(e), Metering of Energy Use)

    Energy Technology Data Exchange (ETDEWEB)

    None

    2014-11-01

    Guidance defines which federal buildings are appropriate to meter, provides metering prioritization recommendations for agencies with limited resources, and discusses the requirement for agencies to submit metering implementation plans to the U.S. Department of Energy.

  18. 46 CFR 162.050-27 - Oil content meter: Approval tests.

    Science.gov (United States)

    2010-10-01

    ...) of this section are repeated. (2) If the meter has a positive displacement mixture pump, the mixture... content reading is obtained and recorded. (3) If the meter has a positive displacement mixture pump, the... provided in a specific test, the centrifugal pump shown in Figure 162.050-19 in § 162.050-19 must...

  19. What Can Wireless Cellular Technologies Do about the Upcoming Smart Metering Traffic?

    DEFF Research Database (Denmark)

    Nielsen, Jimmy Jessen; Madueño, Germán Corrales; Pratas, Nuno

    2015-01-01

    The introduction of smart electricity meters with cellular radio interface puts an additional load on the wireless cellular networks. Currently, these meters are designed for low duty cycle billing and occasional system check, which generates a low-rate sporadic traffic. As the number...... and higher rates per device. In this paper, we characterize the current traffic generated by smart electricity meters and supplement it with the potential traffic requirements brought by introducing enhanced Smart Meters, i.e., meters with PMU-like capabilities. Our study shows how GSM/GPRS and LTE cellular...... system performance behaves with the current and next generation smart meters traffic, where it is clearly seen that the PMU data will seriously challenge these wireless systems. We conclude by highlighting the possible solutions for upgrading the cellular standards, in order to cope with the upcoming...

  20. Simultaneous recording of the action potential and its whole-cell associated ion current on NG108-15 cells cultured over a MWCNT electrode

    Science.gov (United States)

    Morales-Reyes, I.; Seseña-Rubfiaro, A.; Acosta-García, M. C.; Batina, N.; Godínez-Fernández, R.

    2016-08-01

    It is well known that, in excitable cells, the dynamics of the ion currents (I i) is extremely important to determine both the magnitude and time course of an action potential (A p). To observe these two processes simultaneously, we cultured NG108-15 cells over a multi-walled carbon nanotubes electrode (MWCNTe) surface and arranged a two independent Patch Clamp system configuration (Bi-Patch Clamp). The first system was used in the voltage or current clamp mode, using a glass micropipette as an electrode. The second system was modified to connect the MWCNTe to virtual ground. While the A p was recorded through the micropipette electrode, the MWCNTe was used to measure the underlying whole-cell current. This configuration allowed us to record both the membrane voltage (V m) and the current changes simultaneously. Images acquired by atomic force microscopy (AFM) and scanning electron microscopy (SEM) indicate that cultured cells developed a complex network of neurites, which served to establish the necessary close contact and strong adhesion to the MWCNTe surface. These features were a key factor to obtain the recording of the whole-cell I i with a high signal to noise ratio (SNR). The experimental results were satisfactorily reproduced by a theoretical model developed to simulate the proposed system. Besides the contribution to a better understanding of the fundamental mechanisms involved in cell communication, the developed method could be useful in cell physiology studies, pharmacology and diseases diagnosis.

  1. Dry calibration of ultrasonic gas flow meters

    Energy Technology Data Exchange (ETDEWEB)

    De Boer, G.; Lansing, J.

    1997-07-01

    At present in most European countries it is customary that turbine meters, or the newer ultrasonic gas flow meters, when used in fiscal metering or custody transfer metering applications, are calibrated in a test facility by comparison to standards or reference devices. For reason of practical and operational drawbacks, costs involved and availability of only a limited number of calibration facilities, another way of meter verification is advantageous. For orifice metering the practice of dry calibration is well established; that is, meter verification is based upon examination of the geometry and installation of the orifice plate and a function check of the read out devices. Although for turbine meters a flow (wet) calibration may be a necessity, it will be shown that ultrasonic gas flow meters can be dry calibrated in the same way as orifice meters. As a basis for the acceptance of a dry calibration procedure for ultrasonic gas flow meters, a sensitivity analysis of the relevant variables with respect to the meter's accuracy is presented. Further test results are presented that demonstrate the feasibility of the concept of dry calibration applied to ultrasonic gas flow meters. (author)

  2. Low-threshold Ca2+ currents in dendritic recordings from Purkinje cells in rat cerebellar slice cultures.

    Science.gov (United States)

    Mouginot, D; Bossu, J L; Gähwiler, B H

    1997-01-01

    Voltage-dependent Ca2+ conductances were investigated in Purkinje cells in rat cerebellar slice cultures using the whole-cell and cell-attached configurations of the patch-clamp technique. In the presence of 0.5 mM Ca2+ in the extracellular solution, the inward current activated with a threshold of -55 +/- 1.5 mV and reached a maximal amplitude of 2.3 +/- 0.4 nA at -31 +/- 2 mV. Decay kinetics revealed three distinct components: a fast (24.6 +/- 2 msec time constant), a slow (304 +/- 46 msec time constant), and a nondecaying component. Rundown of the slow and sustained components of the current, or application of antagonists for the P/Q-type Ca2+ channels, allowed isolation of the fast-inactivating Ca2+ current, which had a threshold for activation of -60 mV and reached a maximal amplitude of 0.7 nA at a membrane potential of -33 mV. Both activation and steady-state inactivation of this fast-inactivating Ca2+ current were described with Boltzmann equations, with half-activation and inactivation at -51 mV and -86 mV, respectively. This Ca2+ current was nifedipine-insensitive, but its amplitude was reduced reversibly by bath-application of NiCl2 and amiloride, thus allowing its identification as a T-type Ca2+ current. Channels with a conductance of 7 pS giving rise to a fast T-type ensemble current (insensitive to omega-Aga-IVA) were localized with a high density on the dendritic membrane. Channel activity responsible for the ensemble current sensitive to omega-Aga-IVA was detected with 10 mM Ba2+ as the charge carrier. These channels were distributed with a high density on dendritic membranes and in rare cases were also seen in somatic membrane patches.

  3. Chinese Meter in Translating English Poetry

    Institute of Scientific and Technical Information of China (English)

    温荣芬

    2009-01-01

    <正>Translation is not easy and poetry translation is troublesome,while meter poetry translation is the most difficult. This paper will focus on the meter in translating English poetry into Chinese. From the review of translation history to

  4. 1-Meter Digital Elevation Model specification

    Science.gov (United States)

    Arundel, Samantha T.; Archuleta, Christy-Ann M.; Phillips, Lori A.; Roche, Brittany L.; Constance, Eric W.

    2015-10-21

    In January 2015, the U.S. Geological Survey National Geospatial Technical Operations Center began producing the 1-Meter Digital Elevation Model data product. This new product was developed to provide high resolution bare-earth digital elevation models from light detection and ranging (lidar) elevation data and other elevation data collected over the conterminous United States (lower 48 States), Hawaii, and potentially Alaska and the U.S. territories. The 1-Meter Digital Elevation Model consists of hydroflattened, topographic bare-earth raster digital elevation models, with a 1-meter x 1-meter cell size, and is available in 10,000-meter x 10,000-meter square blocks with a 6-meter overlap. This report details the specifications required for the production of the 1-Meter Digital Elevation Model.

  5. Apparatus for metering the angle of inclination of construction projects

    Energy Technology Data Exchange (ETDEWEB)

    Zaripov, M.F.; Kovshov, G.N.; Lavrov, B.V.

    1980-08-30

    A design is submitted for an apparatus to be used in metering the inclination angle of construction projects such as wells. This apparatus consists of a hinged universal joint, both internal and external frames, a pendulum with a ferromagnetic probe mounted on the internal frame, two sources for the formation of a controlled magnetic field, magnetic posts which are in-line with the frame axis, and a conversion-metering circuit. A two-phase current generator is mounted on the external frame and a ferromagnetic probe is placed at a 45-degree angle to the rotation axis for the internal frame, perpendicular to the vertical posts. Such a configuration serves to improve the metering accuracy by removing error and instability in the magnetic field source current.

  6. Whole-cell recording from honeybee olfactory receptor neurons: ionic currents, membrane excitability and odourant response in developing workerbee and drone.

    Science.gov (United States)

    Laurent, Stéphanie; Masson, Claudine; Jakob, Ingrid

    2002-04-01

    Whole-cell recording techniques were used to characterize ionic membrane currents and odourant responses in honeybee olfactory receptor neurons (ORNs) in primary cell culture. ORNs of workerbee (female) and drone (male) were isolated at an early stage of development before sensory axons connect to their target in the antennal lobe. The results collectively indicate that honeybee ORNs have electrical properties similar, but not necessarily identical to, those currently envisaged for ORNs of other species. Under voltage clamp at least four ionic currents could be distinguished. Inward currents were made of a fast transient, tetrodotoxin-sensitive sodium current. In some ORNs a cadmium-sensitive calcium current was detected. ORNs showed heterogeneity in their outward currents: either outward currents were made of a delayed rectifier type potassium current, which was partially blocked by tetraethyl ammonium or quinidine, or were composed of a delayed rectifier type and a transient calcium-dependent potassium current, which was cadmium-sensitive and abolished by removal of external calcium. The proportion of each of the two outward currents, however, was different within the ORNs of the two sexes suggesting a gender-specific functional heterogeneity. ORNs showed heterogeneity in action potential firing properties: depolarizing current steps elicited either one action potential or, as in most of the cells, it led to repetitive spiking. Action potentials were tetrodotoxin-sensitive suggesting they are carried by sodium. Odourant stimulation with different mixtures and pure substances evoked depolarizing receptor potentials with superimposed action potentials when spike threshold was reached. In summary, honeybee ORNs are remarkably mature at early stages in their development.

  7. Embedded solution for a microwave moisture meter

    Science.gov (United States)

    In this paper, the conversion of a PC or laptop-controlled microwave moisture meter to a stand-alone meter hosting its own embedded system is discussed. The moisture meter is based on the free-space transmission measurement technique and uses low-intensity microwaves to measure the attenuation and p...

  8. Demand response, behind-the-meter generation and air quality.

    Science.gov (United States)

    Zhang, Xiyue; Zhang, K Max

    2015-02-03

    We investigated the implications of behind-the-meter (BTM) generation participating in demand response (DR) programs. Specifically, we evaluated the impacts of NOx emissions from BTM generators enrolled in the New York Independent System Operator (NYISO)'s reliability-based DR programs. Through analyzing the DR program enrollment data, DR event records, ozone air quality monitoring data, and emission characteristics of the generators, we found that the emissions from BTM generators very likely contribute to exceedingly high ozone concentrations in the Northeast Corridor region, and very likely account for a substantial fraction of total NOx emissions from electricity generation. In addition, a companion study showed that the emissions from BTM generators could also form near-source particulate matter (PM) hotspots. The important policy implications are that the absence of up-to-date regulations on BTM generators may offset the current efforts to reduce the emissions from peaking power plants, and that there is a need to quantify the environmental impacts of DR programs in designing sound policies related to demand-side resources. Furthermore, we proposed the concept of "Green" DR resources, referring to those that not only provide power systems reliability services, but also have verifiable environmental benefits or minimal negative environmental impacts. We argue that Green DR resources that are able to maintain resource adequacy and reduce emissions at the same time are key to achieving the cobenefits of power system reliability and protecting public health during periods with peak electricity demand.

  9. An ex ante analysis on the use of activity meters for automated estrus detection, to invest or not to invest?

    NARCIS (Netherlands)

    Rutten, C.J.; Steeneveld, W.; Inchaisri, C.; Hogeveen, H.

    2014-01-01

    The technical performance of activity meters for automated detection of estrus in dairy farming has been studied, and such meters are already used in practice. However, information on the economic consequences of using activity meters is lacking. The current study analyzes the economic benefits of a

  10. An ex ante analysis on the use of activity meters for automated estrus detection, to invest or not to invest?

    NARCIS (Netherlands)

    Rutten, C.J.; Steeneveld, W.; Inchaisri, C.; Hogeveen, H.

    2014-01-01

    The technical performance of activity meters for automated detection of estrus in dairy farming has been studied, and such meters are already used in practice. However, information on the economic consequences of using activity meters is lacking. The current study analyzes the economic benefits of a

  11. Cell-attached single-channel recordings in intact prefrontal cortex pyramidal neurons reveal compartmentalized D1/D5 receptor modulation of the persistent sodium current.

    Directory of Open Access Journals (Sweden)

    Natalia eGorelova

    2015-02-01

    Full Text Available The persistent Na current (INap is believed to be an important target of dopamine modulation in prefrontal cortex (PFC neurons. While past studies have tested the effects of dopamine on INap, the results have been contradictory largely because of difficulties in measuring INap using somatic whole-cell recordings. To circumvent these confounds we used the cell-attached patch-clamp technique to record single Na channels from the soma, proximal dendrite or proximal axon of intact prefrontal layer V pyramidal neurons. Under baseline conditions, numerous well resolved Na channel openings were recorded that exhibited an extrapolated reversal potential of 73 mV, a slope conductance of 14-19pS and were blocked by TTX. While similar in most respects, the propensity to exhibit prolonged bursts lasting >40ms was many fold greater in the axon than the soma or dendrite. Bath application of the D1 agonist SKF81297 shifted the ensemble current activation curve leftward and increased the number of late events recorded from the proximal dendrite but not the soma or axon. However, the greatest effect was on prolonged bursting where the D1 agonist increased their occurrence 3 fold in the proximal dendrite and nearly 7 fold in the soma, but not at all in the axon. As a result, D1 activation equalized the probability of prolonged burst occurrence across the proximal axosomatodendritic region. Therefore, D1 modulation appears to be targeted mainly to Na channels in the proximal dendrite/soma and not the proximal axon. By circumventing the pitfalls of previous attempts to study the D1R modulation of INap, we demonstrate conclusively that D1R can increase the INap generated proximally, however questions still remain as to how D1R modulates Na currents in the more distal initial segment where most of the INap is normally generated.

  12. Optimising the use of observational electronic health record data: Current issues, evolving opportunities, strategies and scope for collaboration.

    Science.gov (United States)

    Liaw, Siaw-Teng; Powell-Davies, Gawaine; Pearce, Christopher; Britt, Helena; McGlynn, Lisa; Harris, Mark F

    2016-03-01

    With increasing computerisation in general practice, national primary care networks are mooted as sources of data for health services and population health research and planning. Existing data collection programs - MedicinesInsight, Improvement Foundation, Bettering the Evaluation and Care of Health (BEACH) - vary in purpose, governance, methodologies and tools. General practitioners (GPs) have significant roles as collectors, managers and users of electronic health record (EHR) data. They need to understand the challenges to their clinical and managerial roles and responsibilities. The aim of this article is to examine the primary and secondary use of EHR data, identify challenges, discuss solutions and explore directions. Representatives from existing programs, Medicare Locals, Local Health Districts and research networks held workshops on the scope, challenges and approaches to the quality and use of EHR data. Challenges included data quality, interoperability, fragmented governance, proprietary software, transparency, sustainability, competing ethical and privacy perspectives, and cognitive load on patients and clinicians. Proposed solutions included effective change management; transparent governance and management of intellectual property, data quality, security, ethical access, and privacy; common data models, metadata and tools; and patient/community engagement. Collaboration and common approaches to tools, platforms and governance are needed. Processes and structures must be transparent and acceptable to GPs.

  13. Combining smart metering with successful marketing; Smart Metering mit erfolgreichem Marketing verbinden

    Energy Technology Data Exchange (ETDEWEB)

    Luckhardt, Sina [EVB Energie AG, Velbert (Germany)

    2009-07-15

    Smart metering can be implemented in various ways. Apart from data transmission via powerline cables, also teletransmission via GPRS may be advantageous. A current project investigates both communication strategies which can also be used in parallel, especially by major utilities with the appropriate infrastructure. In the case of concrete implementation, it has been found that the communication with users must be clear in order to give them an idea of the advantages of the new technologies, and that an appropriate marketing strategy must be developed for successful rollout. (orig.)

  14. Net Metering and Interconnection Procedures-- Incorporating Best Practices

    Energy Technology Data Exchange (ETDEWEB)

    Jason Keyes, Kevin Fox, Joseph Wiedman, Staff at North Carolina Solar Center

    2009-04-01

    State utility commissions and utilities themselves are actively developing and revising their procedures for the interconnection and net metering of distributed generation. However, the procedures most often used by regulators and utilities as models have not been updated in the past three years, in which time most of the distributed solar facilities in the United States have been installed. In that period, the Interstate Renewable Energy Council (IREC) has been a participant in more than thirty state utility commission rulemakings regarding interconnection and net metering of distributed generation. With the knowledge gained from this experience, IREC has updated its model procedures to incorporate current best practices. This paper presents the most significant changes made to IREC’s model interconnection and net metering procedures.

  15. Lessons learnt from mining meter data of residential consumers

    OpenAIRE

    Blazakis, K; Davarzani, S; G. Stavrakakis; Pisica, I

    2016-01-01

    Tracking end-users' usage patterns can enable more accurate demand forecasting and the automation of demand response execution. Accordingly, more advanced applications, such as electricity market design, integration of distributed generation and theft detection can be developed. By employing data mining techniques on smart meter recordings, the suppliers can efficiently investigate the load patterns of consumers. This paper presents applications where data mining of energy usage can derive us...

  16. Dual-Resonator Speed Meter for a Free Test Mass

    CERN Document Server

    Braginsky, V B; Khalili, F Ya; Thorne, K S; Braginsky, Vladimir B.; Gorodetsky, Mikhail L.; Khalili, Farid Ya.; Thorne, Kip S.

    2000-01-01

    A description and analysis are given of a ``speed meter'' for monitoring a classical force that acts on a test mass. This speed meter is based on two microwave resonators (``dual resonators''), one of which couples evanescently to the position of the test mass. The sloshing of the resulting signal between the resonators, and a wise choice of where to place the resonators' output waveguide, produce a signal in the waveguide that (for sufficiently low frequencies) is proportional to the test-mass velocity (speed) rather than its position. This permits the speed meter to achieve force-measurement sensitivities better than the standard quantum limit (SQL), both when operating in a narrow-band mode and a wide-band mode. A scrutiny of experimental issues shows that it is feasible, with current technology, to construct a demonstration speed meter that beats the wide-band SQL by a factor 2. A concept is sketched for an adaptation of this speed meter to optical frequencies; this adaptation forms the basis for a possib...

  17. Genetic counselors' current use of personal health records-based family histories in genetic clinics and considerations for their future adoption.

    Science.gov (United States)

    Widmer, Chaney; Deshazo, Jonathan P; Bodurtha, Joann; Quillin, John; Creswick, Heather

    2013-06-01

    Given the widespread adoption of electronic medical records and recent emergence of electronic family history tools, we examined genetic counselors' perspectives on the emerging technology of the personal health record (PHR)-based family history tool that links to an electronic medical record (EMR). Two-hundred thirty-three genetic counselors responded to an on-line survey eliciting current use of electronic family history (EFH) tools and familiarity with PHR-based family history tools. Additionally, after being shown a series of screen shots of a newly developed PHR-based family history tool based on the U.S. Surgeon General's My Family Health Portrait (United States Department of Health and Human Services 2009), participants were surveyed about the perceived usefulness, ease of use, and impact on current workflow that this kind of tool would have in their practices. Eighty-three percent reported that their institution has an EMR, yet only 35 % have a dedicated space for family history. Eighty-two percent reported that less than 5 % of their patients have a PHR, and only 16 % have worked with patients who have a PHR. Seventy-two percent or more agreed that a PHR-based family history tool would facilitate communication, increase accuracy of information, ensure consistency in recording information, increase focus on actual counseling, reduce repetitive questions, improve efficiency, and increase the legibility and clarity. Our findings suggest that participants were familiar with existing EFH tools, but that the majority did not use them in practice. Genetic counselors' adoption of such tools is limited due to non-existence of this kind of technology or inability to integrate it into their clinics. They are also strongly in favor of adopting a PHR-based family history tool in genetics clinics, but have practical concerns that must be addressed before the tool can be implemented.

  18. Using Smart Meters Data for Energy Management Operations and Power Quality Monitoring in a Microgrid

    DEFF Research Database (Denmark)

    Palacios-Garcia, Emilio J.; Diaz, Enrique Rodriguez; Anvari-Moghaddam, Amjad

    2017-01-01

    Smart metering devices have become an essential part in the development of the current electrical network toward the paradigm of Smart Grid. These meters present in most of the cases, functionalities whose analysis capabilities go further beyond the basic automated meter readings for billing...... of a commercial advanced metering infrastructure (AMI) in the context of a smart building with an energy management system (EMS). Furthermore, power quality monitoring based on this AMI is explained. All the details regarding the implementation in a laboratory scale application, as well as the obtained results...

  19. Look at the Beat, Feel the Meter:Top-down Effects of Meter Induction on Auditory and Visual Modalities

    Directory of Open Access Journals (Sweden)

    Alexandre eCelma-Miralles

    2016-03-01

    Full Text Available Recent research has demonstrated top-down effects on meter induction in the auditory modality. However, little is known about these effects in the visual domain, especially without the involvement of motor acts such as tapping. In the present study, we aim to assess whether the projection of meter on auditory beats is also present in the visual domain. We asked sixteen musicians to internally project binary (i.e. a strong-weak pattern and ternary (i.e. a strong-weak-weak pattern meter onto separate, but analogue, visual and auditory isochronous stimuli. Participants were presented with sequences of tones or blinking circular shapes (i.e. flashes at 2.4 Hz while their electrophysiological responses were recorded. A frequency analysis of the elicited steady-state evoked potentials allowed us to compare the frequencies of the beat (2.4 Hz, its first harmonic (4.8 Hz, the binary subharmonic (1.2 Hz, and ternary subharmonic (0.8 Hz within and across modalities. Taking the amplitude spectra into account, we observed an enhancement of the amplitude at 0.8 Hz in the ternary condition for both modalities, suggesting meter induction across modalities. There was an interaction between modality and voltage at 2.4 and 4.8 Hz. Looking at the power spectra, we also observed significant differences from zero in the auditory, but not in the visual, binary condition at 1.2 Hz. These findings suggest that meter processing is modulated by top-down mechanisms that interact with our perception of rhythmic events and that such modulation can also be found in the visual domain. The reported cross-modal effects of meter may shed light on the origins of our timing mechanisms, partially developed in primates and allowing humans to synchronize across modalities accurately.

  20. Registration error study of digital watt-hour meters under distorted conditions

    Science.gov (United States)

    Reta-Hernandez, Manuel

    The increasing application of non-linear loads based on the use of converters, uninterruptible power supplies, and other solid-state switching devices has increased the harmonic content in voltage and current at metering points. One of many problems caused by the voltage and current distortion is the effect on the watt-hour meter performance. The digital watt-hour meter is replacing the old induction meter for measuring electric energy, obtaining additional flexibility and functionality. However, the digital meter performance can be deeply affected when a dc current component is added to the distorted conditions. This dissertation presents a study of the digital watt-hour meter's performance under different nonsinusoidal conditions, including a dc current component. The work is divided into two sections: experimental and analytical. The experimental section consists of accuracy testing on several models of digital meters, both single-phase and three-phase units, subjected to computer-controlled distortion. The system setup used for the measurements was designed by using 12-bits data acquisition hardware (DAQ) and virtual-instrument software (VI) installed in a personal computer. Additional testing on electromechanical watt-hour meters is included for comparison purposes.

  1. CT reclassification system cuts costs of grid metering

    Energy Technology Data Exchange (ETDEWEB)

    Doig, P. [Schneider Electric, Toronto, ON (Canada)

    2006-07-01

    New regulatory requirements demand that utilities meter previously un-metered locations on the power network with accurate revenue metering equipment. Utilities are now exploring the possibility of re-using existing relay-class transformers (CTs) for metering applications. However, the true accuracy of the existing CTs is often unknown. This paper presented details of a new CT reclassification system. The system uses a highly accurate current sensor for use in live-line methods in a high voltage environment. The system analyzes the accuracy of an existing CT and calculates its characteristic performance. Corresponding error correction parameters are then obtained and programmed into an advanced revenue meter in order to enable dynamic accuracy reclassification of the existing CT while it is operational. The sensor is based on a split-core active CT design. In a typical installation, 3 primary sensors are installed on the high-side bus in a high voltage substation in series with the circuit breaker containing the existing relay-class CTs under test. The sensors each wirelessly stream data to a computer workstation in a nearby substation control building. The sensors and the advanced revenue meter are equipped with a global positioning system (GPS) receiver that support accurate time-stamping and synchronization of all data sent to the computer for analysis. Software is used to compare data from the sensors to the respective 3-phase data collected from the meter and to calculate the appropriate ratio correction factors and phase angle correction factors for each test point. Correction parameters are then programmed into the revenue meter which provides dynamic correction for the ratio and phase angle errors of the relay-class CT over its operational range. The revenue meter is left in place after the sensors are removed in order to measure highly accurate energy data which is reported back to the utility data collection and billing system. Details of a test conducted

  2. Balanced Flow Meters without Moving Parts

    Science.gov (United States)

    Kelley, Anthony R.; VanBuskirk, Paul

    2008-01-01

    Balanced flow meters are recent additions to an established class of simple, rugged flow meters that contain no moving parts in contact with flow and are based on measurement of pressure drops across objects placed in flow paths. These flow meters are highly accurate, minimally intrusive, easily manufacturable, and reliable. A balanced flow meter can be easily mounted in a flow path by bolting it between conventional pipe flanges. A balanced flow meter can be used to measure the flow of any of a variety of liquids or gases, provided that it has been properly calibrated. Relative to the standard orifice-plate flow meter, the balanced flow meter introduces less turbulence and two times less permanent pressure loss and is therefore capable of offering 10 times greater accuracy and repeatability with less dissipation of energy. A secondary benefit of the reduction of turbulence is the reduction of vibration and up to 15 times less acoustic noise generation. Both the balanced flow meter and the standard orifice-plate flow meter are basically disks that contain holes and are instrumented with pressure transducers on their upstream and downstream faces. The most obvious difference between them is that the standard orifice plate contains a single, central hole while the balanced flow meter contains multiple holes. The term 'balanced' signifies that in designing the meter, the sizes and locations of the holes are determined in an optimization procedure that involves balancing of numerous factors, including volumetric flow, mass flow, dynamic pressure, kinetic energy, all in an effort to minimize such undesired effects as turbulence, pressure loss, dissipation of kinetic energy, and non-repeatability and nonlinearity of response over the anticipated range of flow conditions. Due to proper balancing of these factors, recent testing demonstrated that the balanced flow-meter performance was similar to a Venturi tube in both accuracy and pressure recovery, but featured reduced

  3. Production of satellite-derived aerosol climate data records: current status of the ESA Aerosol_cci project

    Science.gov (United States)

    de Leeuw, Gerrit; Holzer-Popp, Thomas; Pinnock, Simon

    2015-04-01

    cloud screening in the various algorithms. Other efforts will focus on surface treatment and possible improvement of aerosol models used in the retrieval. Furthermore, the validation results, showing differences between regions, will further be analyzed in an attempt to better understand the working of different algorithms. The results, if successful, will be implemented in the various algorithms. A yearly re-processing is planned to evaluate the effect of different changes and to monitor further improvement. Each re-processing will be done on the full 17-year global ATSR-2/AATSR data set. The work on stratospheric aerosols and on absorbing aerosols is continued and a new element in Phase 2 is the inclusion of dust aerosols retrieved from thermal infrared IASI observations over a limited area. After the launch of Sentinel-3, planned for the autumn of 2015, the aerosol retrieval using SLSTR and OLCI data are planned to be included in the Aerosol_cci project. PARASOL retrieved data over a limited area will be used as a 'standard' for comparison with other sensors. A new aspect of Phase 2 are the use cases where representatives of several relevant users communities, climate, stratospheric aerosol and aerosol-cloud interaction, will evaluate the use of Aerosol_cci products in their own work as regards the usefulness and added value. This will be done in close cooperation with the data providers to further improve the products and meet users' needs, both as regards data quality and presentation. The latter also requires data availability and easy accessibility through good data management which is another important aspect in Aerosol_cci. An overview will be presented of the current status of the various aspects of the Aerosol_cci project.

  4. Hardware Design of a Smart Meter

    Directory of Open Access Journals (Sweden)

    Ganiyu A. Ajenikoko

    2014-09-01

    Full Text Available Smart meters are electronic measurement devices used by utilities to communicate information for billing customers and operating their electric systems. This paper presents the hardware design of a smart meter. Sensing and circuit protection circuits are included in the design of the smart meter in which resistors are naturally a fundamental part of the electronic design. Smart meters provides a route for energy savings, real-time pricing, automated data collection and eliminating human errors due to manual readings which would ultimately reduce labour costs, diagnosis and instantaneous fault detection. This allows for predictive maintenance resulting in a more efficient and reliable distribution network.

  5. Off-level corrections for gravity meters

    Science.gov (United States)

    Niebauer, T. M.; Blitz, Thomas; Constantino, Andy

    2016-04-01

    Gravity meters must be aligned with the local gravity at any location on the surface of the earth in order to measure the full amplitude of the gravity vector. The gravitational force on the sensitive component of the gravity meter decreases by the cosine of the angle between the measurement axis and the local gravity vector. Most gravity meters incorporate two horizontal orthogonal levels to orient the gravity meter for a maximum gravity reading. In order to calculate a gravity correction it is often necessary to estimate the overall angular deviation between the gravity meter and the local gravity vector using two measured horizontal tilt meters. Typically this is done assuming that the two horizontal angles are independent and that the product of the cosines of the horizontal tilts is equivalent to the cosine of the overall deviation. These approximations, however, break down at large angles. This paper derives analytic formulae to transform angles measured by two orthogonal tilt meters into the vertical deviation of the third orthogonal axis. The equations can be used to calibrate the tilt sensors attached to the gravity meter or provide a correction for a gravity meter used in an off-of-level condition.

  6. Hoku Kea - Educational 1meter Telescope on Mauna Kea

    Science.gov (United States)

    Hamilton, John; Fox, R.

    2008-03-01

    Hoku Ke'a is the newest (and smallest) telescope to join the pantheon of great telescopes on Mauna Kea. A one-meter class telescope will be installed at the current site of the University of Hawaii - Manoa (UHM) Institute for Astronomy (IfA) 0.6-meter (24") telescope. The building and dome will be replaced with a similar sized facility and a 0.9-meter (36") reflector installed. Equinox Interscience of Golden Colorado is the manufacturer and installer. Operated by the University of Hawaii - Hilo (UHH), this 0.9 meter reflector will be a remotely operated facility solely dedicated to teaching undergraduate astronomy majors the skills and practices of observational astronomy. This is in contrast to all other observatories on Mauna Kea, where research opportunities to select user communities are made available. Learning by doing: Students (under UHH faculty direction) will perform research on a variety of sources, such as variable stars, supernovae, asteroids, etc. Incorporation of the telescope into the academic curriculum is currently underway, making the telescope a central focus of most of the courses offered by the UHH Department of Physics and Astronomy. Collaborations and instrument sharing with other institutions will be available, as well as time-sharing arrangements. We would like to acknowledge and thank the National Science Foundation for its support and funding of this project.

  7. Seasonal variability of tidal and non-tidal currents off Beypore, SW coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    DineshKumar, P.K.; Srinivas, K.; AnilKumar, N.

    Analyses of current meter records generated in the coastal waters off Beypore (11 degrees 10 minutes S; 75 degrees 48 minutes E) on the southwest coast of India have been made to understand the tidal and non-tidal variability during premonsoon...

  8. Variability in measured current structure on the southwest continental shelf of India

    Digital Repository Service at National Institute of Oceanography (India)

    DineshKumar, P.K.; Srinivas, K.

    Analyses of short duration current meter records collected in the coastal waters off Beypore on the southwest coast of India have been made to understand the tidal and non-tidal variability during premonsoon and summer monsoon seasons of year 2000...

  9. M sub(2) tidal currents on the shelf off Goa, west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Shenoi, S.S.C.; Gouveia, A.D.; Shetye, S.R.

    Current meter records collected during three different months from a site off Goa (15 degrees 08'N, 73 degrees 16'E) over the western continental shelf of India have been used to describe the M sub(2) tidal structure in a water column of depth about...

  10. REM meter for pulsed sources of neutrons

    Energy Technology Data Exchange (ETDEWEB)

    Thorngate, J.E.; Hunt, G.F.; Rueppel, D.W.

    1980-08-13

    A rem meter was constructed specifically for measuring neutrons produced by fusion experiments for which the source pulses last 10 ms or longer. The detector is a /sup 6/Li glass scintillator, 25.4 mm in diameter and 3.2 mm thick, surrounded by 11.5 cm of polyethylene. This detector has a sensitivity of 8.5 x 10/sup 4/ counts/mrem. The signals from this fast scintillator are shaped using a shorted delay line to produce pulses that are only 10 ns long so that dose equivalent rates up to 12 mrem/s can be measured with less than a 1% counting loss. The associated electronic circuits store detector counts only when the count rate exceeds a preset level. When the count rate returns to background, a conversion from counts to dose equivalent is made and the results are displayed. As a means of recording the number of source pulses that have occurred, a second display shows how many times the preset count rate has been exceeded. Accumulation of detector counts and readouts can also be controlled manually. The unit will display the integrated dose equilavent up to 200 mrem in 0.01 mrem steps. A pulse-height discriminator rejects gamma-ray interactions below 1 MeV, and the detector size limits the response above that energy. The instrument can be operated from an ac line or will run on rechargeable batteries for up to 12 hours.

  11. Cost-benefit assessment of using electronic health records data for clinical research versus current practices: Contribution of the Electronic Health Records for Clinical Research (EHR4CR) European Project.

    Science.gov (United States)

    Beresniak, Ariel; Schmidt, Andreas; Proeve, Johann; Bolanos, Elena; Patel, Neelam; Ammour, Nadir; Sundgren, Mats; Ericson, Mats; Karakoyun, Töresin; Coorevits, Pascal; Kalra, Dipak; De Moor, Georges; Dupont, Danielle

    2016-01-01

    The widespread adoption of electronic health records (EHR) provides a new opportunity to improve the efficiency of clinical research. The European EHR4CR (Electronic Health Records for Clinical Research) 4-year project has developed an innovative technological platform to enable the re-use of EHR data for clinical research. The objective of this cost-benefit assessment (CBA) is to assess the value of EHR4CR solutions compared to current practices, from the perspective of sponsors of clinical trials. A CBA model was developed using an advanced modeling approach. The costs of performing three clinical research scenarios (S) applied to a hypothetical Phase II or III oncology clinical trial workflow (reference case) were estimated under current and EHR4CR conditions, namely protocol feasibility assessment (S1), patient identification for recruitment (S2), and clinical study execution (S3). The potential benefits were calculated considering that the estimated reduction in actual person-time and costs for performing EHR4CR S1, S2, and S3 would accelerate time to market (TTM). Probabilistic sensitivity analyses using Monte Carlo simulations were conducted to manage uncertainty. Should the estimated efficiency gains achieved with the EHR4CR platform translate into faster TTM, the expected benefits for the global pharmaceutical oncology sector were estimated at €161.5m (S1), €45.7m (S2), €204.5m (S1+S2), €1906m (S3), and up to €2121.8m (S1+S2+S3) when the scenarios were used sequentially. The results suggest that optimizing clinical trial design and execution with the EHR4CR platform would generate substantial added value for pharmaceutical industry, as main sponsors of clinical trials in Europe, and beyond. Copyright © 2015 Elsevier Inc. All rights reserved.

  12. Kinematic Validation of a Multi-Kinect v2 Instrumented 10-Meter Walkway for Quantitative Gait Assessments.

    Science.gov (United States)

    Geerse, Daphne J; Coolen, Bert H; Roerdink, Melvyn

    2015-01-01

    Walking ability is frequently assessed with the 10-meter walking test (10MWT), which may be instrumented with multiple Kinect v2 sensors to complement the typical stopwatch-based time to walk 10 meters with quantitative gait information derived from Kinect's 3D body point's time series. The current study aimed to evaluate a multi-Kinect v2 set-up for quantitative gait assessments during the 10MWT against a gold-standard motion-registration system by determining between-systems agreement for body point's time series, spatiotemporal gait parameters and the time to walk 10 meters. To this end, the 10MWT was conducted at comfortable and maximum walking speed, while 3D full-body kinematics was concurrently recorded with the multi-Kinect v2 set-up and the Optotrak motion-registration system (i.e., the gold standard). Between-systems agreement for body point's time series was assessed with the intraclass correlation coefficient (ICC). Between-systems agreement was similarly determined for the gait parameters' walking speed, cadence, step length, stride length, step width, step time, stride time (all obtained for the intermediate 6 meters) and the time to walk 10 meters, complemented by Bland-Altman's bias and limits of agreement. Body point's time series agreed well between the motion-registration systems, particularly so for body points in motion. For both comfortable and maximum walking speeds, the between-systems agreement for the time to walk 10 meters and all gait parameters except step width was high (ICC ≥ 0.888), with negligible biases and narrow limits of agreement. Hence, body point's time series and gait parameters obtained with a multi-Kinect v2 set-up match well with those derived with a gold standard in 3D measurement accuracy. Future studies are recommended to test the clinical utility of the multi-Kinect v2 set-up to automate 10MWT assessments, thereby complementing the time to walk 10 meters with reliable spatiotemporal gait parameters obtained

  13. Kinematic Validation of a Multi-Kinect v2 Instrumented 10-Meter Walkway for Quantitative Gait Assessments.

    Directory of Open Access Journals (Sweden)

    Daphne J Geerse

    Full Text Available Walking ability is frequently assessed with the 10-meter walking test (10MWT, which may be instrumented with multiple Kinect v2 sensors to complement the typical stopwatch-based time to walk 10 meters with quantitative gait information derived from Kinect's 3D body point's time series. The current study aimed to evaluate a multi-Kinect v2 set-up for quantitative gait assessments during the 10MWT against a gold-standard motion-registration system by determining between-systems agreement for body point's time series, spatiotemporal gait parameters and the time to walk 10 meters. To this end, the 10MWT was conducted at comfortable and maximum walking speed, while 3D full-body kinematics was concurrently recorded with the multi-Kinect v2 set-up and the Optotrak motion-registration system (i.e., the gold standard. Between-systems agreement for body point's time series was assessed with the intraclass correlation coefficient (ICC. Between-systems agreement was similarly determined for the gait parameters' walking speed, cadence, step length, stride length, step width, step time, stride time (all obtained for the intermediate 6 meters and the time to walk 10 meters, complemented by Bland-Altman's bias and limits of agreement. Body point's time series agreed well between the motion-registration systems, particularly so for body points in motion. For both comfortable and maximum walking speeds, the between-systems agreement for the time to walk 10 meters and all gait parameters except step width was high (ICC ≥ 0.888, with negligible biases and narrow limits of agreement. Hence, body point's time series and gait parameters obtained with a multi-Kinect v2 set-up match well with those derived with a gold standard in 3D measurement accuracy. Future studies are recommended to test the clinical utility of the multi-Kinect v2 set-up to automate 10MWT assessments, thereby complementing the time to walk 10 meters with reliable spatiotemporal gait parameters

  14. Simplified Processing Method for Meter Data Analysis

    Energy Technology Data Exchange (ETDEWEB)

    Fowler, Kimberly M. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Colotelo, Alison H. A. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Downs, Janelle L. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Ham, Kenneth D. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Henderson, Jordan W. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Montgomery, Sadie A. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Vernon, Christopher R. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Parker, Steven A. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

    2015-11-01

    Simple/Quick metered data processing method that can be used for Army Metered Data Management System (MDMS) and Logistics Innovation Agency data, but may also be useful for other large data sets. Intended for large data sets when analyst has little information about the buildings.

  15. 78 FR 20628 - Wireless Metering Challenge

    Science.gov (United States)

    2013-04-05

    ... of Energy Efficiency and Renewable Energy Wireless Metering Challenge AGENCY: Office of Energy... (EERE) requests comments on the draft version of the Wireless Power Meter Challenge Specification. This... Challenge Specification must be received by 5 p.m. Eastern Standard Time April 26, 2013. DOE will be...

  16. Experimental study of hard X-rays emitted from meter-scale positive discharges in air

    CERN Document Server

    Kochkin, P O; van Deursen, A P J; Ebert, U

    2012-01-01

    We investigate structure and evolution of long positive spark breakdown; and we study at which stage pulses of hard X-rays are emitted. Positive high-voltage pulses of standardized lightning impulse wave form of about 1 MV were applied to about 1 meter of ambient air. The discharge evolution was imaged with a resolution of tens of nanoseconds with an intensified CCD camera. LaBr3(Ce+) scintillation detectors recorded the X-rays emitted during the process. The voltage and the currents on both electrodes were measured synchronously. All measurements indicate that first a large and dense corona of positive streamers emerges from the high voltage electrode. When they approach the grounded electrode, negative counter-streamers emerge there, and the emission of hard X-rays coincides with the connection of the positive streamers with the negative counter-streamers.

  17. Sedimentary record of postglacial variability in near-bottom currents, sediment supply and ice rafting on the continental shelf off SW Spitsbergen

    Science.gov (United States)

    Sternal, B.; Szczuciński, W.; Forwick, M.; ZajÄ czkowski, M.; Lorenc, S.; Vorren, T. O.

    2012-04-01

    The continental shelf off the west coast of southern Spitsbergen is influenced by the northward-flowing water masses (warmer and more saline Atlantic Water carried by the West Spitsbergen Current and colder, fresher Arctic Water carried by the East Spitsbergen Current), as well as ice rafting. The present study was conducted to identify the influence of these factors on the sedimentary environment and to decipher temporal variations in the intensity of bottom currents, ice rafting off and glacial activity on southwestern Spitsbergen during the past 14,000 years. The study is based on a multiproxy analyses of one gravity core from the outer continental shelf (148 m water depth) in decadal to centennial resolution. Age control was obtained on a basis of ten AMS 14C dates along with 210Pb and 137Cs datings. To infer the style of sedimentation and the sediment supply the core was measured for magnetic susceptibility, X-rayed, analysed for grain-size distribution of bulk sediment and for coarse sand fraction components. The assessment of ice rafting intensity was based on coarse sand fraction counting (IRD), whereas to assume the type of ice rafting, whether by icebergs or sea ice, the analysis of quartz grains roundness was performed. Moreover, relative velocity of bottom currents was estimated by grain-size analysis of sortable silt fraction. We distinguish seven intervals: c. 14,000 - 12,600 cal yr BP - Bølling/Allerød (unit 1); 12,600 - 11,500 cal yr BP - Younger Dryas (unit 2) and 11,500 cal yr BP to present - Holocene (units 3 - 7). The smallest mean sortable silt values, reflecting relatively low bottom current velocity, occurred from the Bølling/Allerød to the early Younger Dryas and after ~0.5 cal ka BP. Increased velocities were inferred for the early Holocene as well as period between 8.8 - 7.8 cal yr BP. The IRD was present throughout the entire record indicating continuous supply of a material delivered from ice rafting, with variable dominance of

  18. The effects of meter orientation downstream of a short radius elbow on electromagnetic flow meters

    Science.gov (United States)

    Justensen, Jared C.

    Electromagnetic flowmeters (known as magnetic flow meters) are a widely used type of flowmeter. The accuracy of magnetic flow meters are a function of several factors, not the least of which is the flow condition inside the pipe. It has been shown that disturbances in the velocity profile affects the accuracy of a magnetic flow meter (Luntta, 1998). Accordingly, manufacturers of magnetic flow meters give installation guidelines. These guidelines help prevent the user from installing the meter in a pipe configuration that is likely to cause the meter to produce inaccurate results. Although most manufacturers provide recommendations about the amount of straight pipe that is necessary upstream of the meter, little is said about the orientation of the meter in relation to upstream disturbances. This study examines the performance of magnetic flow meters when positioned at two different orientations: EIP (electrodes in plane with an upstream 90-degree short radius elbow) and EOP (electrodes out of plane). Four different meters were included in the study in which a baseline straight pipe test was first performed using over fifty diameters of straight pipe upstream of each meter. The straight pipe test was used to determine the baseline accuracy of each of the meters over a velocity range that is typical for the size and function of the meters. Meters were then installed at five different locations downstream from a 90-degree short-radius elbow. At each location the meters were tested in two orientations at five different flow rates. The intent of the research is to show that the orientation of a magnetic flow meter affects the meter's ability to produce accurate flow readings when it is installed downstream of a flow disturbance. The results from this research showed a significant shift in measurement accuracy when the meter was in EIP and EOP orientations. All of the meters in the study produced accuracy readings at one point of another that were outside the specified

  19. Simultaneous optical recording in multiple cells by digital holographic microscopy of chloride current associated to activation of the ligand-gated chloride channel GABA(A) receptor.

    Science.gov (United States)

    Jourdain, Pascal; Boss, Daniel; Rappaz, Benjamin; Moratal, Corinne; Hernandez, Maria-Clemencia; Depeursinge, Christian; Magistretti, Pierre Julius; Marquet, Pierre

    2012-01-01

    Chloride channels represent a group of targets for major clinical indications. However, molecular screening for chloride channel modulators has proven to be difficult and time-consuming as approaches essentially rely on the use of fluorescent dyes or invasive patch-clamp techniques which do not lend themselves to the screening of large sets of compounds. To address this problem, we have developed a non-invasive optical method, based on digital holographic microcopy (DHM), allowing monitoring of ion channel activity without using any electrode or fluorescent dye. To illustrate this approach, GABA(A) mediated chloride currents have been monitored with DHM. Practically, we show that DHM can non-invasively provide the quantitative determination of transmembrane chloride fluxes mediated by the activation of chloride channels associated with GABA(A) receptors. Indeed through an original algorithm, chloride currents elicited by application of appropriate agonists of the GABA(A) receptor can be derived from the quantitative phase signal recorded with DHM. Finally, chloride currents can be determined and pharmacologically characterized non-invasively simultaneously on a large cellular sampling by DHM.

  20. Simultaneous optical recording in multiple cells by digital holographic microscopy of chloride current associated to activation of the ligand-gated chloride channel GABA(A receptor.

    Directory of Open Access Journals (Sweden)

    Pascal Jourdain

    Full Text Available Chloride channels represent a group of targets for major clinical indications. However, molecular screening for chloride channel modulators has proven to be difficult and time-consuming as approaches essentially rely on the use of fluorescent dyes or invasive patch-clamp techniques which do not lend themselves to the screening of large sets of compounds. To address this problem, we have developed a non-invasive optical method, based on digital holographic microcopy (DHM, allowing monitoring of ion channel activity without using any electrode or fluorescent dye. To illustrate this approach, GABA(A mediated chloride currents have been monitored with DHM. Practically, we show that DHM can non-invasively provide the quantitative determination of transmembrane chloride fluxes mediated by the activation of chloride channels associated with GABA(A receptors. Indeed through an original algorithm, chloride currents elicited by application of appropriate agonists of the GABA(A receptor can be derived from the quantitative phase signal recorded with DHM. Finally, chloride currents can be determined and pharmacologically characterized non-invasively simultaneously on a large cellular sampling by DHM.

  1. Comparison of magnetic field meters used for Elf exposure measurement

    Energy Technology Data Exchange (ETDEWEB)

    Magne, I. [Electricite de France (EDF/RD), 77 - Moret sur Loing (France); Azoulay, A. [Supelec, 91 - Gif sur Yvette (France); Lambrozo, J.; Souques, M. [Gaz de France (EDF/GDF), SEM, 75 - Paris (France)

    2006-07-01

    Objective The question of the biological effects of E.L.F. electromagnetic fields (50/60 Hz) has lead to many experimental and epidemiological works, in occupational exposure and in residential exposure. One of the main difficulties is to integrate the maximum of information about the environmental exposures during the everyday life without limitation to the exposure of the home. The objective of this study is to analyse experimentally the metrology associated with human exposure to 50 Hz magnetic field, in the optic of a study of the French population exposure. Method 4 meters were tested: the E.M.D.E.X. II, currently used in epidemiological studies, the E.M.D.E.X. L.I.T.E., which is more recent, the H.T.300, an Italian meter, and the F.D.3, which is made by Combinova A calibration was performed with an Helmoltz coil. The immunity of these meters to GSM signal was also tested. The influence of the sample rate was evaluated. Results and conclusion The meter chosen for performing the measurements of the exposure study will be selected in function of the following criteria: - easiness of use - precision - low sample rate - memory size and reliability of data stocking - immunity to GSM perturbations. (authors)

  2. 雷电流在线记录装置的低功耗设计%Low Power Design of the Lightning Current On-Line Record Device

    Institute of Scientific and Technical Information of China (English)

    李昆仑; 黄植功; 李振华; 吴明晴

    2013-01-01

    由于在线监测装置运行环境的特殊性,装置的取电非常不便。如何降低功耗,保证装置在阴雨雷电天气下连续工作,成为研究和开发人员考虑的首要问题。本文从软件和硬件低功耗设计的角度,介绍了雷电流在线记录装置的设计。装置采用STM32F407作为控制核心,利用芯片自带的模数转换器和DMA控制器,完成雷电流数据采集,并通过GPRS无线通信将采集数据发送至服务器。设计对装置的取电方式,低功耗器件选用和软硬件的低功耗设计进行了综合考虑,利用STM32F407的低功耗模式实现功耗控制,达到了降低功耗的目的,延长了装置在阴雨天气的工作时间。%Due to the particularity of the running environment of the lightning current on-line record device, power supply of the device is inconvenient. It is the primary problem for the research and development personnel to consider how to reduce the device’s power consumption and ensure it continuously work in stormy weather. This paper introduces the lightning current on-line record device from the point of view of the software and hardware low power design. The device uses STM32F407 as the control core, completes lightning current data acquisition by using the ADC analog converter and DMA controller, and sends the lightning current data to the server through the GPRS wireless communication. Considering the power supply mode,low power device selection and software and hardware design,the design successfully controls the power consumption by using low power consumption modes on chip of STM32F407, which achieves the goal of reducing the power consumption and extends the device’s working time in stormy weather.

  3. Net metering study of switching effects on electromechanical meters[Report prepared for the Measurement Canada Electricity Net Metering Project

    Energy Technology Data Exchange (ETDEWEB)

    Van Overberghe, L. [Measurement Canada, London, ON (Canada)

    2006-03-03

    The feasibility of introducing net metering in the electricity sector was evaluated with particular reference to a project administered by Measurement Canada and Electro-Federation Canada (MicroPower Connect) in collaboration with Natural Resources Canada. The objective of the Measurement Canada Electricity Net Metering Project is to identify and eliminate the barriers introduced by the Electricity and Gas Inspection Act regarding the introduction of net metering. The purpose was to design a device that would allow rotation reversal in a residential electromechanical single phase meter. The device should approximate any fluctuations found in a typical net metering system. A series of tests were conducted to understand the influences, on errors, of forward-to-reverse and reverse-to-forward transitions, specifically to find evidence of error migration and mechanical stress. The project was designed to find and measure the effects of forward reverse switching on an electromechanical meter resulting from a change in energy flow. Twenty metres were calibrated in the forward direction in series from light load to high load. Power factor was not adjustable. Test points were then applied in both the forward and reverse directions. The exercise yielded individual errors which were aggregated to show average found errors after 3,000 transitions. Small shifts in errors were apparent and there was no evidence to support a disk flutter theory. refs., tabs., figs.

  4. Recording Students to Bring Poetry Alive

    Science.gov (United States)

    Thibeault, Matthew D.

    2011-01-01

    Poems are filled with musicality. Poetry and music are often described using similar terms: meter, cadence, phrase, form, and more. Poetry also has physical qualities recognized ever since the Greeks classified poetic meter in feet. In this article, the author presents a project that works well across the age spectrum: recording expressive poetry…

  5. ELECTRICAL LOAD ANTICIPATOR AND RECORDER

    Science.gov (United States)

    Werme, J.E.

    1961-09-01

    A system is described in which an indication of the prevailing energy consumption in an electrical power metering system and a projected power demand for one demand in terval is provided at selected increments of time within the demand interval. Each watt-hour meter in the system is provided with an impulse generator that generates two impulses for each revolution of the meter disc. In each demand interval, for example, one half-hour, of the metering system, the total impulses received from all of the meters are continuously totaled for each 5-minute interval and multiplied by a number from 6 to 1 depending upon which 5- minute interval the impulses were received. This value is added to the total pulses received in the intervals preceding the current 5-minute interval within the half-hour demand interval tc thereby provide an indication of the projected power demand every 5 minutes in the demand interval.

  6. Bandwidth Analysis of Smart Meter Network Infrastructure

    DEFF Research Database (Denmark)

    Balachandran, Kardi; Olsen, Rasmus Løvenstein; Pedersen, Jens Myrup

    2014-01-01

    Advanced Metering Infrastructure (AMI) is a net-work infrastructure in Smart Grid, which links the electricity customers to the utility company. This network enables smart services by making it possible for the utility company to get an overview of their customers power consumption and also control...... devices in their costumers household e.g. heat pumps. With these smart services, utility companies can do load balancing on the grid by shifting load using resources the customers have. The problem investigated in this paper is what bandwidth require-ments can be expected when implementing such network...... to utilize smart meters and which existing broadband network technologies can facilitate this smart meter service. Initially, scenarios for smart meter infrastructure are identified. The paper defines abstraction models which cover the AMI scenarios. When the scenario has been identified a general overview...

  7. VT USGS NED DEM (10 meter) - statewide

    Data.gov (United States)

    Vermont Center for Geographic Information — (Link to Metadata) This dataset is derived from the multi-resolution National Elevation Dataset (NED), at resolutions of both 1/3 arc-second (approx. 10 meters) and...

  8. SPOT Controlled Image Base 10 meter

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — SPOT Controlled Image Base 10 meter (CIB-10) is a collection of orthorectified panchromatic (grayscale) images. The data were acquired between 1986 and 1993 by the...

  9. Informatics Solutions for Smart Metering Systems Integration

    Directory of Open Access Journals (Sweden)

    Simona-Vasilica OPREA

    2015-01-01

    Full Text Available In this paper different aspects regarding smart metering systems integration have been depicted. Smart metering systems, renewable energy sources integration and advanced tariff systems implementation require informatics solution that could automatically collect and process data, forecast the behavior of electricity consumers, analyze trends regarding electricity prices, optimize the consumption of consumers, provide friendly interfaces, etc. They are advanced technologies that represent solutions for insufficient conventional primary energy sources, gas emissions, dependency on energy sources located outside European Union and issues related to energy efficiency. This paper mainly describes several informatics solutions correlated with operational requirements for smart metering system and our proposal for simplified architecture of smart metering systems, with three distinct levels (base level, middle level and top level and load profile calculation methods.

  10. SPOT Controlled Image Base 10 meter

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — SPOT Controlled Image Base 10 meter (CIB-10) is a collection of orthorectified panchromatic (grayscale) images. The data were acquired between 1986 and 1993 by the...

  11. EPA Region 1 - Valley Depth in Meters

    Data.gov (United States)

    U.S. Environmental Protection Agency — Raster of the Depth in meters of EPA-delimited Valleys in Region 1. Valleys (areas that are lower than their neighbors) were extracted from a Digital Elevation Model...

  12. USGS Digital Orthophoto Quad (DOQ) - 3 meter

    Data.gov (United States)

    Minnesota Department of Natural Resources — These data files are a collection of the USGS standard DOQs that have been resampled to a 3-meter cell resolution and mosaiced into quad format vs quarter quad...

  13. New consumer services provided by smart metering

    Directory of Open Access Journals (Sweden)

    Daminov Ildar

    2015-01-01

    Full Text Available This paper focuses on the issues of smart metering market and considers different services provided by smart metering from consumer point of view. Firstly, smart metering deployment challenges emerging and conventional tariffs, which modify a consumer behavior and thus, the entire electric energy market can be optimized since the customer is motivated to consume less energy. Secondly, the authors illustrate changes in electricity quality, which have an impact on consumer relations with utility. Additionally, two main indices of grid resilience – SAIDI and SAIFI – are exemplified to reveal the improvement potential of smart metering implementation in certain regions of Russia that also influence the consumer. Finally, in-home display and privacy problem directly reflect the consumer’s behavior, thus the private life rights should not be violated as they are guaranteed by law.

  14. A comparison of the climates of the Medieval Climate Anomaly, Little Ice Age, and Current Warm Period reconstructed using coral records from the northern South China Sea

    Science.gov (United States)

    Deng, Wenfeng; Liu, Xi; Chen, Xuefei; Wei, Gangjian; Zeng, Ti; Xie, Luhua; Zhao, Jian-xin

    2017-01-01

    For the global oceans, the characteristics of high-resolution climate changes during the last millennium remain uncertain because of the limited availability of proxy data. This study reconstructs climate conditions using annually resolved coral records from the South China Sea (SCS) to provide new insights into climate change over the last millennium. The results indicate that the climate of the Medieval Climate Anomaly (MCA, AD 900-1300) was similar to that of the Current Warm Period (CWP, AD 1850-present), which contradicts previous studies. The similar warmth levels for the MCA and CWP have also been recorded in the Makassar Strait of Indonesia, which suggests that the MCA was not warmer than the CWP in the western Pacific and that this may not have been a globally uniform change. Hydrological conditions were drier/saltier during the MCA and similar to those of the CWP. The drier/saltier MCA and CWP in the western Pacific may be associated with the reduced precipitation caused by variations in the Pacific Walker Circulation. As for the Little Ice Age (LIA, AD 1550-1850), the results from this study, together with previous data from the Makassar Strait, indicate a cold and wet period compared with the CWP and the MCA in the western Pacific. The cold LIA period agrees with the timing of the Maunder sunspot minimum and is therefore associated with low solar activity. The fresher/wetter LIA in the western Pacific may have been caused by the synchronized retreat of both the East Asian Summer Monsoon and the Australian Monsoon.

  15. The new 34-meter antenna

    Science.gov (United States)

    Pompa, M. F.

    1986-01-01

    The new 34-m high efficiency Azimuth - Elevation antenna configuration, including its features, dynamic characteristics and performance at 8.4-GHz frequencies is described. The current-technology features of this antenna produce a highly reliable configuration by incorporation of a main wheel and track azimuth support, central pintle pivot bearing, close tolerance surface panels and all-welded construction. Also described are basic drive controls that, as slaved to three automatic microprocessors, provide accurate and safe control of the antenna's steering tasks. At this time antenna installations are completed at Goldstone and Canberra and have operationally supported the Voyager - Uranus encounter. A third installation is being constructed currently in Madrid and is scheduled for completion in late 1986.

  16. Privacy-Preserving Smart Metering with Authentication in a Smart Grid

    Directory of Open Access Journals (Sweden)

    Jun Beom Hur

    2015-12-01

    Full Text Available The traditional security objectives of smart grids have been availability, integrity, and confidentiality. However, as the grids incorporate smart metering and load management, user and corporate privacy is increasingly becoming an issue in smart grid networks. Although transmitting current power consumption levels to the supplier or utility from each smart meter at short intervals has an advantage for the electricity supplier’s planning and management purposes, it threatens user privacy by disclosing fine-grained consumption data and usage behavior to utility providers. In this study, we propose a distributed incremental data aggregation scheme where all smart meters on an aggregation path are involved in routing the data from the source meter to the collection unit. User privacy is preserved by symmetric homomorphic encryption, which allows smart meters to participate in the aggregation without seeing any intermediate or final result. Aggregated data is further integrated with an aggregate signature to achieve data integrity and smart meter authentication in such a way that dishonest or fake smart meters cannot falsify data en route. Only the collection unit can obtain the aggregated data and verify its integrity while the individual plain data are not exposed to the collection unit. Therefore, user privacy and security are improved for the smart metering in a smart grid network.

  17. Genetic Types of Meter-Scale Cyclic Sequences and Fabric Natures of Facies Succession

    Institute of Scientific and Technical Information of China (English)

    2000-01-01

    Different genetic types of meter-scale cyclic sequences in stratigraphic records result from episodic accumulation of strata related to Milankovitch cycles. The distinctive fabric natures of facies succession result from the sedimentation governed by different sediment sources and sedimentary dynamic conditions in different paleogeographical backgrounds, corresponding to high-frequency sea-level changes. Naturally, this is the fundamental criterion for the classification of genetic types of meter-scale cyclic sequences. The widespread development in stratigraphic records and the regular vertical stacking patterns in long-term sequences, the evolution characters of earth history and the genetic types reflected by specific fabric natures of facies successions in different paleogeographical settings, all that show meterscale cyclic sequences are not only the elementary working units in stratigraphy and sedimentology, but also the replenishment and extension of parasequence of sequence stratigraphy. Two genetic kinds of facies succession for meter-scale cyclic sequence in neritic-facies strata of carbonate and clastic rocks, are normal grading succession mainly formed by tidal sedimentation and inverse grading succession chiefly made by wave sedimentation, and both of them constitute generally shallowing upward succession, the thickness of which ranges from several tens of centimeters to several meters. The classification of genetic types of meter-scale cyclic sequence could be made in terms of the fabric natures of facies succession, and carbonate meter-scale cyclic sequences could be divided into four types: L-M type, deep-water asymmetrical type, subtidal type and peritidal type. Clastic meter-scale cyclic sequences could be grouped into two types: tidal-dynamic type and wave-dynamic type. The boundaries of meter-scale cyclic sequences are marked by instantaneous punctuated surface formed by non-deposition resulting from high-frequency level changes, which include

  18. Intelligent Metering for Urban Water: A Review

    Directory of Open Access Journals (Sweden)

    Rodney Stewart

    2013-07-01

    Full Text Available This paper reviews the drivers, development and global deployment of intelligent water metering in the urban context. Recognising that intelligent metering (or smart metering has the potential to revolutionise customer engagement and management of urban water by utilities, this paper provides a summary of the knowledge-base for researchers and industry practitioners to ensure that the technology fosters sustainable urban water management. To date, roll-outs of intelligent metering have been driven by the desire for increased data regarding time of use and end-use (such as use by shower, toilet, garden, etc. as well as by the ability of the technology to reduce labour costs for meter reading. Technology development in the water sector generally lags that seen in the electricity sector. In the coming decade, the deployment of intelligent water metering will transition from being predominantly “pilot or demonstration scale” with the occasional city-wide roll-out, to broader mainstream implementation. This means that issues which have hitherto received little focus must now be addressed, namely: the role of real-time data in customer engagement and demand management; data ownership, sharing and privacy; technical data management and infrastructure security, utility workforce skills; and costs and benefits of implementation.

  19. Smart meters. Smart metering. A solution module for a future-oriented energy system; Intelligente Zaehler. Smart Metering. Ein Loesungsbaustein fuer ein zukunftsfaehiges Energiesystem

    Energy Technology Data Exchange (ETDEWEB)

    Grimm, Nadia; Seidl, Hans (comps.)

    2011-12-15

    The German Energy Agency GmbH (Berlin, Federal Republic of Germany) reports on smart metering as a solution module for a future-oriented energy system by means of the following contributions: (1) Key role for smart meters; (2) What is smart metering? (3) Implementation of smart metering in Europe; (4) The market development to date in Germany; (5) Practical experiences with smart metering in Germany; (6) Frequently asked questions; (7) Smart metering in intelligent networks; (8) Legal framework conditions; (9) Data security and data protection in the utilisation of smart meters; (10) Ongoing information; (11) Efficient energy systems.

  20. Flow rate logging seepage meter

    Science.gov (United States)

    Reay, William G. (Inventor); Walthall, Harry G. (Inventor)

    1996-01-01

    An apparatus for remotely measuring and logging the flow rate of groundwater seepage into surface water bodies. As groundwater seeps into a cavity created by a bottomless housing, it displaces water through an inlet and into a waterproof sealed upper compartment, at which point, the water is collected by a collection bag, which is contained in a bag chamber. A magnet on the collection bag approaches a proximity switch as the collection bag fills, and eventually enables the proximity switch to activate a control circuit. The control circuit then rotates a three-way valve from the collection path to a discharge path, enables a data logger to record the time, and enables a pump, which discharges the water from the collection bag, through the three-way valve and pump, and into the sea. As the collection bag empties, the magnet leaves the proximity of the proximity switch, and the control circuit turns off the pump, resets the valve to provide a collection path, and restarts the collection cycle.