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1

Aerial Measuring System in Japan  

SciTech Connect

The U.S. Department of Energy National Nuclear Security Agency’s Aerial Measuring System deployed personnel and equipment to partner with the U.S. Air Force in Japan to conduct multiple aerial radiological surveys. These were the first and most comprehensive sources of actionable information for U.S. interests in Japan and provided early confirmation to the government of Japan as to the extent of the release from the Fukushima Daiichi Nuclear Power Generation Station. Many challenges were overcome quickly during the first 48 hours; including installation and operation of Aerial Measuring System equipment on multiple U.S. Air Force Japan aircraft, flying over difficult terrain, and flying with talented pilots who were unfamiliar with the Aerial Measuring System flight patterns. These all combined to make for a dynamic and non-textbook situation. In addition, the data challenges of the multiple and on-going releases, and integration with the Japanese government to provide valid aerial radiological survey products that both military and civilian customers could use to make informed decisions, was extremely complicated. The Aerial Measuring System Fukushima response provided insight in addressing these challenges and gave way to an opportunity for the expansion of the Aerial Measuring System’s mission beyond the borders of the US.

Lyons, C., Colton, D. P.

2012-05-01T23:59:59.000Z

2

Aerial Measuring System | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Measuring System | National Nuclear Security Administration Measuring System | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Aerial Measuring System Home > About Us > Our Programs > Emergency Response > Responding to Emergencies > Consequence Management > Aerial Measuring System Aerial Measuring System AMS Logo NNSA's Aerial Measuring System (AMS) provides specialized airborne

3

NNSA's Aerial Measuring System at Rickenbacker Field in Ohio...  

NLE Websites -- All DOE Office Websites (Extended Search)

Aerial Measuring System at Rickenbacker Field in Ohio | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear...

4

U. S. Department of Energy Aerial Measuring Systems  

SciTech Connect

The Aerial Measuring Systems (AMS) is an aerial surveillance system. This system consists of remote sensing equipment to include radiation detectors; multispectral, thermal, radar, and laser scanners; precision cameras; and electronic imaging and still video systems. This equipment, in varying combinations, is mounted in an airplane or helicopter and flown at different heights in specific patterns to gather various types of data. This system is a key element in the US Department of Energy's (DOE) national emergency response assets. The mission of the AMS program is twofold--first, to respond to emergencies involving radioactive materials by conducting aerial surveys to rapidly track and map the contamination that may exist over a large ground area and second, to conduct routinely scheduled, aerial surveys for environmental monitoring and compliance purposes through the use of credible science and technology. The AMS program evolved from an early program, begun by a predecessor to the DOE--the Atomic Energy Commission--to map the radiation that may have existed within and around the terrestrial environments of DOE facilities, which produced, used, or stored radioactive materials.

J. J. Lease

1998-10-01T23:59:59.000Z

5

Aerial Measuring System Technical Integration Annual Report 2002  

SciTech Connect

Fiscal Year 2002 is the second year of a five-year commitment by the U.S. Department of Energy, National Nuclear Security Administration (NNSA) to invest in development of new and state-of-the-art technologies for the Aerial Measuring Systems (AMS) project. In 2000, NNSA committed to two million dollars for AMS Technical Integration (TI) for each of five years. The tragedy of September 11, 2001, profoundly influenced the program. NNSA redirected people and funding resources at the Remote Sensing Laboratory (RSL) to more immediate needs. Funds intended for AMS TI were redirected to NNSA's new posture of leaning further forward throughout. AMS TI was brought to a complete halt on December 10, 2001. Then on April 30, 2002, NNSA Headquarters allowed the restart of AMS TI at the reduced level of $840,000. The year's events resulted in a slow beginning of several projects, some of which were resumed only a few weeks before the AMS TI Symposium held at RSL on July 30.

Bechtel Nevada Remote Sensing Laboratory

2003-06-01T23:59:59.000Z

6

DOE/NNSA Aerial Measuring System (AMS): Flying the 'Real' Thing  

SciTech Connect

This slide show documents aerial radiation surveys over Japan. Map product is a compilation of daily aerial measuring system missions from the Fukushima Daiichi power plant to 80 km radius. In addition, other flights were conducted over US military bases and the US embassy.

Craig Lyons

2011-06-24T23:59:59.000Z

7

Aerial Measuring System (AMS) Baseline Surveys for Emergency Planning  

SciTech Connect

Originally established in the 1960s to support the Nuclear Test Program, the AMS mission is to provide a rapid and comprehensive worldwide aerial measurement, analysis, and interpretation capability in response to a nuclear/radiological emergency. AMS provides a responsive team of individuals whose processes allow for a mission to be conducted and completed with results available within hours. This presentation slide-show reviews some of the history of the AMS, summarizes present capabilities and methods, and addresses the value of the surveys.

Lyons, C

2012-06-04T23:59:59.000Z

8

The U.S. Department of Energy's Aerial Measuring System (AMS)  

SciTech Connect

For nearly 40 years, aerial radiological search and survey missions have been performed by the United States Department of Energy's (USDOE) Remote Sensing Laboratory (RSL). Originally created in 1967 as Aerial Measurement Operations (AMO), the AMS mission has expanded to include acquiring baseline measurements, performing periodic area monitoring, and responding to radiological emergencies. In an accident scenario, AMS fixed-wing and/or rotary-wing systems can be deployed to map radiological deposition. A fixed-wing system is on standby twenty-fours per day, seven days per week and can be deployed within four hours of notification. It can quickly evaluate high levels of radiation which may constitute immediate health risks. To accomplish its mission the fixed-wing aircraft utilizes the Spectral Aerial Radiological Computer System (SPARCS) which records gross count and spectral information. Data from SPARCS is telemetered to ground stations and secure websites where it can be viewed and evaluated in near-real time. The rotary-wing system deploys following the critical phase of an accident and supports the DOE's Consequence Management Response Team (CMRT) in determining long term consequences of the accident. The rotary wing aircraft utilizes the Radiation and Environmental Data Acquisition and Recording System (REDAR). A 25-liter sodium iodide (NaI) spectral system and precise positioning allow distributed man-made activity of less than 1 {micro}R/hr at ground level to be precisely mapped. This talk will discuss history of the USDOE's AMS program and its current efforts to conduct baseline aerial surveys of some US cities.

Craig Marianno

2008-03-01T23:59:59.000Z

9

USE OF THE AERIAL MEASUREMENT SYSTEM HELICOPTER EMERGENCY RESPONSE ACQUISITION SYSTEMS WITH GEOGRAPHIC INFORMATION SYSTEM FOR RADIOACTIVE SOIL REMEDIATION - [11504  

SciTech Connect

The Aerial Measurement System (AMS) Helicopter Emergency Response Acquisition System provides a thorough and economical means to identify and characterize the contaminants for large area radiological surveys. The helicopter system can provide a 100-percent survey of an area that qualifies as a scoping survey under the Multi-Agency Radiation Survey and Site Investigation Manual (MARSSIM) methodology. If the sensitivity is adequate when compared to the clean up values, it may also be used for the characterization survey. The data from the helicopter survey can be displayed and manipulated to provide invaluable data during remediation activities.

BROCK CT

2011-02-15T23:59:59.000Z

10

Capabilities of the DOE Remote Sensing Laboratory`s aerial measuring system  

SciTech Connect

This report describes the capabilities of the Remote Sensing Laboratory`s aircraft for use in environmental radiation surveys, multispectral (visible, near infrared, and thermal infrared) surveys of vegetation and buildings, and photographic documentation of the areas covered by the two other surveys. The report discusses the technical capabilities of the various systems and presents examples of the data from a recent demonstration survey. To provide a view of the types of surveys the Remote Sensing Laboratory has conducted in the past, the appendices describe several of the previous area surveys and emergency search surveys.

Riedhauser, S.R.

1995-09-01T23:59:59.000Z

11

Aerial Radiation Measurements from the Fukushima Dai-ichi Nuclear Power Plant Accident  

SciTech Connect

This document is a slide show type presentation concerning DOE and Aerial Measuring System (AMS) activities and results with respect to assessing the consequences of the releases from the Fukushima Dai-ichi Nuclear Power Plant. These include ground monitoring and aerial monitoring.

Guss, P. P.

2012-07-16T23:59:59.000Z

12

Avionics and control system development for mid-air rendezvous of two unmanned aerial vehicles  

E-Print Network (OSTI)

A flight control system was developed to achieve mid-air rendezvous of two unmanned aerial vehicles (UAVs) as a part of the Parent Child Unmanned Aerial Vehicle (PCUAV) project at MIT and the Draper Laboratory. A lateral ...

Park, Sanghyuk, 1973-

2004-01-01T23:59:59.000Z

13

Adaptive control of Unmanned Aerial Systems  

E-Print Network (OSTI)

Adaptive control is considered to be one of the key enabling technologies for future high-performance, safety-critical systems such as air-breathing hypersonic vehicles. Adaptive flight control systems offer improved ...

Dydek, Zachary Thompson

2010-01-01T23:59:59.000Z

14

High Altitude Aerial Natural Gas Leak Detection System  

SciTech Connect

The objective of this program was to develop and demonstrate a cost-effective and power-efficient advanced standoff sensing technology able to detect and quantify, from a high-altitude (> 10,000 ft) aircraft, natural gas leaking from a high-pressure pipeline. The advanced technology is based on an enhanced version of the Remote Methane Leak Detector (RMLD) platform developed previously by Physical Sciences Inc. (PSI). The RMLD combines a telecommunications-style diode laser, fiber-optic components, and low-cost DSP electronics with the well-understood principles of Wavelength Modulation Spectroscopy (WMS), to indicate the presence of natural gas located between the operator and a topographic target. The transceiver transmits a laser beam onto a topographic target and receives some of the laser light reflected by the target. The controller processes the received light signal to deduce the amount of methane in the laser's path. For use in the airborne platform, we modified three aspects of the RMLD, by: (1) inserting an Erbium-doped optical fiber laser amplifier to increase the transmitted laser power from 10 mW to 5W; (2) increasing the optical receiver diameter from 10 cm to 25 cm; and (3) altering the laser wavelength from 1653 nm to 1618 nm. The modified RMLD system provides a path-integrated methane concentration sensitivity {approx}5000 ppm-m, sufficient to detect the presence of a leak from a high capacity transmission line while discriminating against attenuation by ambient methane. In ground-based simulations of the aerial leak detection scenario, we demonstrated the ability to measure methane leaks within the laser beam path when it illuminates a topographic target 2000 m away. We also demonstrated simulated leak detection from ranges of 200 m using the 25 cm optical receiver without the fiber amplifier.

Richard T. Wainner; Mickey B. Frish; B. David Green; Matthew C. Laderer; Mark G. Allen; Joseph R. Morency

2006-12-31T23:59:59.000Z

15

Measuring the Wind Vector Using the Autonomous Mini Aerial Vehicle M2AV  

Science Conference Proceedings (OSTI)

The meteorological mini unmanned aerial vehicle (M2AV) was used for measuring the meteorological wind. The wind is the vector difference between the aircraft speed relative to the earth (inertial velocity) and relative to the airflow (true ...

Aline van den Kroonenberg; Tim Martin; Marco Buschmann; Jens Bange; Peter Vörsmann

2008-11-01T23:59:59.000Z

16

An Embedded Nonlinear Control Implementation for a Hovering Small Unmanned Aerial System.  

E-Print Network (OSTI)

??This thesis presents the design, development, and experimental verification of an embedded vehicle controller applied to a hovering small unmanned aerial system dubbed the UFO.… (more)

Althaus, Joseph H.

2010-01-01T23:59:59.000Z

17

Measuring forest canopy height using a combination of lidar and aerial photography data  

E-Print Network (OSTI)

It has been demonstrated that the height of forest canopies can be measured with a good accuracy using small footprint lidars. This is essentially accomplished by subtracting the last return altitude (ground) from the corresponding first return altitude (canopy surface). The technique is considered superior to photogrammetric methods mainly because the ground level, which is difficult to see on aerial photos of densely forested areas, can be well identified using small footprint lidars. However, lidar cannot be used to characterized past forest states, while these can be assessed, and photogrammetically measured, in the wealth of historical aerial photographs most developed countries possess. Our goal is to replace the first return lidar data by altitude models derived from aerial photos in order to map forest canopy height changes of the past decades. This paper presents the first methodological steps which consist in comparing canopy heights obtained from lidar data only to a combination of lidar and photogrammetry data. The lidar data was acquired over an area of the boreal forest in Quebec, Canada, in 1998, using Optech’s ALTM1020 flying at an altitude of 700 m. Two stereo-pairs of aerial black and white photographs were used: 1) a pair of 1:15,000 photos taken in 1994, and 2) a pair of 1:40,000 photos taken in 1998. A lidar canopy height model (CHM) was created by subtracting ground altitudes from canopy altitudes. Aerial photo altitude models were derived using the image correlation methods of Virtuozo 3.2 software. The ground level altitudinal fit between the aerial photo altitude model and the lidar data was checked on rock outcrops. A photo CHM was created by subtracting the lidar ground altitude model from the aerial photo altitude model. The photo CHM and the lidar CHM show a good degree of correlation.

Benoît A. St-onge; Nora Achaichia

2001-01-01T23:59:59.000Z

18

Aerial Measuring System | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure...

19

Autonomous aerial refueling of UAVS utilizing a vision based navigation system  

E-Print Network (OSTI)

The major technological obstacle to be overcome for practical and reliable autonomous probe-and-drogue aerial refueling is obtaining accurate relative position and attitude measurements during the docking phase. An integrated controller-sensor-navigation system for this task must be robust and possess good disturbance rejection properties. Previous attempts to solve this problem have used video servoing with pattern recognition algorithms and the differential Global Positioning System. This thesis seeks to determine the feasibility of autonomous aerial refueling by developing a robust docking controller and integrating it with the relative position and attitude measurements from a novel Vision-based Navigation (VisNav) sensor. VisNav accurately determines the line of sight vector between a positioning sensing diode and a target configured with multiple light emitting diode beacons. A study is conducted to determine the best number and placement of the beacons on the drogue and the best location to mount the sensor on an Unmanned Air Vehicle (UAV). Optimal Nonzero Set Point and optimal Command Generator Tracker controllers are developed and used to simulate six degree-of-freedom docking maneuvers using dynamical system models of a UAV and a refueling drogue. Test cases for stationary and moving drogues in atmospheric turbulence are evaluated in terms of docking position errors, control effort, control rate, and quadratic cost. Simulation results demonstrate that a Proportional Integral Filter Command Generator Tracker controller, coupled with the VisNav sensor and navigation system, provides a viable candidate solution to the autonomous aerial refueling problem. The beacon lights can be placed in the location of lights currently on the drogue, and the sensor can be placed at the base of the refueling probe on the UAV.

Kimmett, Jennifer Jones

2002-01-01T23:59:59.000Z

20

AERIAL MEASUREMENTS OF CONVECTION CELL ELEMENTS IN HEATED LAKES  

SciTech Connect

Power plant-heated lakes are characterized by a temperature gradient in the thermal plume originating at the discharge of the power plant and terminating at the water intake. The maximum water temperature discharged by the power plant into the lake depends on the power generated at the facility and environmental regulations on the temperature of the lake. Besides the observed thermal plume, cloud-like thermal cells (convection cell elements) are also observed on the water surface. The size, shape and temperature of the convection cell elements depends on several parameters such as the lake water temperature, wind speed, surfactants and the depth of the thermocline. The Savannah River National Laboratory (SRNL) and Clemson University are collaborating to determine the applicability of laboratory empirical correlations between surface heat flux and thermal convection intensity. Laboratory experiments at Clemson University have demonstrated a simple relationship between the surface heat flux and the standard deviation of temperature fluctuations. Similar results were observed in the aerial thermal imagery SRNL collected at different locations along the thermal plume and at different elevations. SRNL will present evidence that the results at Clemson University are applicable to cooling lakes.

Villa-Aleman, E; Saleem Salaymeh, S; Timothy Brown, T; Alfred Garrett, A; Malcolm Pendergast, M; Linda Nichols, L

2007-12-19T23:59:59.000Z

Note: This page contains sample records for the topic "aerial measuring system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

A Lightweight Observation System for Atmospheric Carbon Dioxide Concentration Using a Small Unmanned Aerial Vehicle  

Science Conference Proceedings (OSTI)

To make the investigation of the temporal and spatial variations of atmospheric CO2 in and above the planetary boundary layer more flexible and economical, a lightweight observation system using a small unmanned aerial vehicle has been developed ...

T. Watai; T. Machida; N. Ishizaki; G. Inoue

2006-05-01T23:59:59.000Z

22

Improving High-Resolution Numerical Weather Simulations by Assimilating Data from an Unmanned Aerial System  

Science Conference Proceedings (OSTI)

In this study, it is demonstrated how temperature, humidity, and wind profile data from the lower troposphere obtained with a lightweight unmanned aerial system (UAS) can be used to improve high-resolution numerical weather simulations by four-...

Marius O. Jonassen; Haraldur Ólafsson; Hálfdán Ágústsson; Ólafur Rögnvaldsson; Joachim Reuder

2012-11-01T23:59:59.000Z

23

Spatial Feature Evaluation for Aerial Scene Analysis  

Science Conference Proceedings (OSTI)

High-resolution aerial images are becoming more readily available, which drives the demand for robust, intelligent and efficient systems to process increasingly large amounts of image data. However, automated image interpretation still remains a challenging problem. Robust techniques to extract and represent features to uniquely characterize various aerial scene categories is key for automated image analysis. In this paper we examined the role of spatial features to uniquely characterize various aerial scene categories. We studied low-level features such as colors, edge orientations, and textures, and examined their local spatial arrangements. We computed correlograms representing the spatial correlation of features at various distances, then measured the distance between correlograms to identify similar scenes. We evaluated the proposed technique on several aerial image databases containing challenging aerial scene categories. We report detailed evaluation of various low-level features by quantitatively measuring accuracy and parameter sensitivity. To demonstrate the feature performance, we present a simple query-based aerial scene retrieval system.

Swearingen, Thomas S [ORNL] [ORNL; Cheriyadat, Anil M [ORNL] [ORNL

2013-01-01T23:59:59.000Z

24

Measuring Logging Impacts on Forest Carbon Stocks Using Ground and Aerial-based Methods  

Science Conference Proceedings (OSTI)

The research conducted under this project contributes to EPRI member efforts to identify science-based, cost-effective methods to measure and monitor forest management carbon offsets. Specifically, this project tested the use of aerial photography to monitor forest carbon stock changes that result from logging in Ohio and Bolivia. This report covers all phases of the work under this contract and compares methods used in Ohio and Bolivia. It discusses the applicability of methods to the monitoring of dual...

2005-11-30T23:59:59.000Z

25

NNSA to Conduct Aerial Radiation Assessment Survey in New Jersey...  

National Nuclear Security Administration (NNSA)

412 helicopter, operated by the Remote Sensing Laboratory Aerial Measuring System from Joint Base Andrews, will be equipped with radiation sensing technology. The helicopter will...

26

NNSA to Conduct Aerial Radiation Monitoring Survey over Baltimore...  

National Nuclear Security Administration (NNSA)

occurring background radiation. A twin-engine Bell 412 helicopter, operated by the Remote Sensing Laboratory Aerial Measuring System from Joint Base Andrews, will be...

27

DESIGN OF SMALL SCALE GAS TURBINE SYSTEMS FOR UNMANNED-AERIAL VEHICLES  

E-Print Network (OSTI)

DESIGN OF SMALL SCALE GAS TURBINE SYSTEMS FOR UNMANNED-AERIAL VEHICLES (AERSP 597/497-K) SPRING 814 865 9871 cxc11@psu.edu Summary : The proposed course is a three-credit gas turbine design course will be evaluated against (agreed) deadlines by the instructor. A number of lecturers from the gas turbine industry

Camci, Cengiz

28

ARM Aerial Facility  

NLE Websites -- All DOE Office Websites (Extended Search)

govSitesAerial Facility govSitesAerial Facility AAF Information Proposal Process Science (PDF) Baseline Instruments Campaign Instruments Instrumentation Workshop 2008 AAF Fact Sheet G-1 Fact Sheet Images Field Campaigns AAF Campaigns 2007 - UAV Campaigns 1993 - 2006, 2015 Other Aircraft Campaigns 1993 - 2010 AAF Contacts Rickey Petty DOE AAF Program Director Beat Schmid Technical Director ARM Aerial Facility Numerous instrumented aircraft participated in CLASIC, a cross-disciplinary interagency research effort. Numerous instrumented aircraft participated in CLASIC, a cross-disciplinary interagency research effort. As an integral measurement capability of the ARM Climate Research Facility, the ARM Aerial Facility (AAF) provides airborne measurements required to answer science questions proposed by the ARM Science Team and the external

29

Aerial Measurement of Radioxenon Concentration off the West Coast of Vancouver Island following the Fukushima Reactor Accident  

E-Print Network (OSTI)

In response to the Fukushima nuclear reactor accident, on March 20th, 2011, Natural Resources Canada conducted aerial radiation surveys over water just off of the west coast of Vancouver Island. Dose-rate levels were found to be consistent with background radiation, however a clear signal due to Xe-133 was observed. Methods to extract Xe-133 count rates from the measured spectra, and to determine the corresponding Xe-133 volumetric concentration, were developed. The measurements indicate that Xe-133 concentrations on average lie in the range of 30 to 70 Bq/m3.

L. E. Sinclair; H. C. J. Seywerd; R. Fortin; J. M. Carson; P. R. B. Saull; M. J. Coyle; R. A. Van Brabant; J. L. Buckle; S. M. Desjardins; R. M. Hall

2011-06-20T23:59:59.000Z

30

Aerial radiation survey at a military range.  

SciTech Connect

Aberdeen Proving Ground (APG) is currently listed on the Superfund National Priorities List because of past waste handling practices at 13 'study areas.' Concern has been expressed that anthropogenic radioisotopes may have been released at some of the study areas, with the potential of posing health risks to human or ecological receptors. This concern was addressed by thoroughly searching archival records, sampling and analyzing environmental media, and performing an aerial radiation survey. The aerial radiation survey techniques employed have been used over all U.S. Department of Energy and commercial reactor sites. Use of the Aerial Measurement System (AMS) allowed investigators to safely survey areas where surveys using hand-held instruments would be difficult to perform. In addition, the AMS delivered a full spectrum of the measured gamma radiation, thereby providing a means of determining which radioisotopes were present at the surface. As a quality check on the aerial measurements, four ground truth measurements were made at selected locations and compared with the aerial data for the same locations. The results of the survey revealed no evidence of surface radioactive contamination. The measured background radiation, including the cosmic contribution, ranged from 4 to 11 {mu}R/h.

Williams, G. P.; Martino, L. E.; Wrobel, J.; Environmental Assessment; U.S. Army Aberdeen Proving Ground

2001-04-01T23:59:59.000Z

31

Number of lightning discharges causing damage to lightning arrester cables for aerial transmission lines in power systems  

SciTech Connect

Damage by lightning discharges to lightning arrester cables for 110-175 kV aerial transmission lines is analyzed using data from power systems on incidents with aerial transmission lines over a ten year operating period (1997-2006). It is found that failures of lightning arrester cables occur when a tensile force acts on a cable heated to the melting point by a lightning current. The lightning currents required to heat a cable to this extent are greater for larger cable cross sections. The probability that a lightning discharge will develop decreases as the amplitude of the lightning current increases, which greatly reduces the number of lightning discharges which damage TK-70 cables compared to TK-50 cables. In order to increase the reliability of lightning arrester cables for 110 kV aerial transmission lines, TK-70 cables should be used in place of TK-50 cables. The number of lightning discharges per year which damage lightning arrester cables is lowered when the density of aerial transmission lines is reduced within the territory of electrical power systems. An approximate relationship between these two parameters is obtained.

Nikiforov, E. P. [Electric Power Scientific Research Institute (VNIIE), branch of OAO 'NTTs Elektroenergetika' (Russian Federation)

2009-07-15T23:59:59.000Z

32

NNSA's Aerial Measuring System at Rickenbacker Field in Ohio...  

National Nuclear Security Administration (NNSA)

Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home >...

33

NNSA Hosts Nordic Countries in Aerial Measuring System Technical...  

NLE Websites -- All DOE Office Websites (Extended Search)

representatives from Denmark, Finland, Iceland, Norway and Sweden. A representative from Canada and the International Atomic Energy Agency also participated in the technical...

34

NNSA's Aerial Measuring System at Rickenbacker Field in Ohio...  

National Nuclear Security Administration (NNSA)

Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform...

35

NNSA Hosts Nordic Countries in Aerial Measuring System Technical...  

National Nuclear Security Administration (NNSA)

from Denmark, Finland, Iceland, Norway and Sweden. A representative from Canada and the International Atomic Energy Agency also participated in the technical...

36

Modelling of a captive unmanned aerial system teledetecting oil pollution on sea surface  

E-Print Network (OSTI)

Recent major oil-spills were tracked using observations with sufficient altitudes over the sea surface, to detect oil slick locations. For oil-spill responders, we propose a captive Unmanned Aerial System, UAS acting like a periscope over a ship or supply vessel. The system is composed of an umbilical deployed from ship deck, and there are few studies that have examined elasticity within cable dynamic during take-off or landing (TOL) and normal flight phases. Therefore, the safest approach for the control-commands of the system is through umbilical dynamic modelling. We give a time-dependant finite-element formulation, using improved elastic non-linear cable elements. Two kinds of boundary condition, natural or essential, are discussed for roll-in or roll-out of the umbilical. A numerical convergence and a validation with an exact solution are provided, using two examples for the flight parameters. Finally, sensitivity of the model potentially extends its capacity for the system equilibrium prediction, under ...

Muttin, Frédéric

2013-01-01T23:59:59.000Z

37

Improving Rangeland Monitoring and Assessment: Integrating Remote Sensing, GIS, and Unmanned Aerial Vehicle Systems  

SciTech Connect

Creeping environmental changes are impacting some of the largest remaining intact parcels of sagebrush steppe ecosystems in the western United States, creating major problems for land managers. The Idaho National Laboratory (INL), located in southeastern Idaho, is part of the sagebrush steppe ecosystem, one of the largest ecosystems on the continent. Scientists at the INL and the University of Idaho have integrated existing field and remotely sensed data with geographic information systems technology to analyze how recent fires on the INL have influenced the current distribution of terrestrial vegetation. Three vegetation mapping and classification systems were used to evaluate the changes in vegetation caused by fires between 1994 and 2003. Approximately 24% of the sagebrush steppe community on the INL was altered by fire, mostly over a 5-year period. There were notable differences between methods, especially for juniper woodland and grasslands. The Anderson system (Anderson et al. 1996) was superior for representing the landscape because it includes playa/bare ground/disturbed area and sagebrush steppe on lava as vegetation categories. This study found that assessing existing data sets is useful for quantifying fire impacts and should be helpful in future fire and land use planning. The evaluation identified that data from remote sensing technologies is not currently of sufficient quality to assess the percentage of cover. To fill this need, an approach was designed using both helicopter and fixed wing unmanned aerial vehicles (UAVs) and image processing software to evaluate six cover types on field plots located on the INL. The helicopter UAV provided the best system compared against field sampling, but is more dangerous and has spatial coverage limitations. It was reasonably accurate for dead shrubs and was very good in assessing percentage of bare ground, litter and grasses; accuracy for litter and shrubs is questionable. The fixed wing system proved to be feasible and can collect imagery for very large areas in a short period of time. It was accurate for bare ground and grasses. Both UAV systems have limitations, but these will be reduced as the technology advances. In both cases, the UAV systems collected data at a much faster rate than possible on the ground. The study concluded that improvements in automating the image processing efforts would greatly improve use of the technology. In the near future, UAV technology may revolutionize rangeland monitoring in the same way Global Positioning Systems have affected navigation while conducting field activities.

Robert Paul Breckenridge

2007-05-01T23:59:59.000Z

38

Analysis of the reasons for accidents and of protective measures against induced voltage on aerial electrical transmission lines  

SciTech Connect

The problem of safety during work on aerial transmission lines under an induced voltage is examined. Results are presented from a study of the causes of accidents over the last 20 years in electrical grids in this country. A determination of different levels of induced voltage on disconnected aerial transmission lines as a function of their grounding scheme is proposed. The order of magnitudes for each level are given, along with approximate expressions for calculating them.

Misrikhanov, M. Sh. [MES Tsentra (Russian Federation); Mirzaabdullaev, A. O. [Branch of JSC 'FSK EES'- Nizhegorodskoe PMES (Russian Federation)

2009-01-15T23:59:59.000Z

39

AERIAL RADIOLOGICAL SURVEYS  

SciTech Connect

Measuring terrestrial gamma radiation from airborne platforms has proved to be a useful method for characterizing radiation levels over large areas. Over 300 aerial radiological surveys have been carried out over the past 25 years including U.S. Department of Energy (DOE) sites, commercial nuclear power plants, Formerly Utilized Sites Remedial Action Program/Uranium Mine Tailing Remedial Action Program (FUSRAP/UMTRAP) sites, nuclear weapons test sites, contaminated industrial areas, and nuclear accident sites. This paper describes the aerial measurement technology currently in use by the Remote Sensing Laboratory (RSL) for routine environmental surveys and emergency response activities. Equipment, data-collection and -analysis methods, and examples of survey results are described.

Proctor, A.E.

1997-06-09T23:59:59.000Z

40

Aerial Scene Recognition using Efficient Sparse Representation  

SciTech Connect

Advanced scene recognition systems for processing large volumes of high-resolution aerial image data are in great demand today. However, automated scene recognition remains a challenging problem. Efficient encoding and representation of spatial and structural patterns in the imagery are key in developing automated scene recognition algorithms. We describe an image representation approach that uses simple and computationally efficient sparse code computation to generate accurate features capable of producing excellent classification performance using linear SVM kernels. Our method exploits unlabeled low-level image feature measurements to learn a set of basis vectors. We project the low-level features onto the basis vectors and use simple soft threshold activation function to derive the sparse features. The proposed technique generates sparse features at a significantly lower computational cost than other methods~\\cite{Yang10, newsam11}, yet it produces comparable or better classification accuracy. We apply our technique to high-resolution aerial image datasets to quantify the aerial scene classification performance. We demonstrate that the dense feature extraction and representation methods are highly effective for automatic large-facility detection on wide area high-resolution aerial imagery.

Cheriyadat, Anil M [ORNL

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "aerial measuring system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

A digital photogrammetric method for measuring horizontal surficial movements on the Slumgullion earthflow, Hinsdale County, Colorado  

Science Conference Proceedings (OSTI)

The traditional approach to making aerial photographic measurements uses analog or analytic photogrammetric equipment. We have developed a digital method for making measurements from aerial photographs which uses geographic information system (GIS) software, ... Keywords: Aerial photographs, Displacements, Geographic Information Systems, Landslide, Ortho-images, Photogrammetry

Philip S. Powers; Marta Chiarle; William Z. Savage

1996-07-01T23:59:59.000Z

42

Precision volume measurement system.  

Science Conference Proceedings (OSTI)

A new precision volume measurement system based on a Kansas City Plant (KCP) design was built to support the volume measurement needs of the Gas Transfer Systems (GTS) department at Sandia National Labs (SNL) in California. An engineering study was undertaken to verify or refute KCP's claims of 0.5% accuracy. The study assesses the accuracy and precision of the system. The system uses the ideal gas law and precise pressure measurements (of low-pressure helium) in a temperature and computer controlled environment to ratio a known volume to an unknown volume.

Fischer, Erin E.; Shugard, Andrew D.

2004-11-01T23:59:59.000Z

43

Electrochemical thermodynamic measurement system  

DOE Patents (OSTI)

The present invention provides systems and methods for accurately characterizing thermodynamic and materials properties of electrodes and electrochemical energy storage and conversion systems. Systems and methods of the present invention are configured for simultaneously collecting a suite of measurements characterizing a plurality of interconnected electrochemical and thermodynamic parameters relating to the electrode reaction state of advancement, voltage and temperature. Enhanced sensitivity provided by the present methods and systems combined with measurement conditions that reflect thermodynamically stabilized electrode conditions allow very accurate measurement of thermodynamic parameters, including state functions such as the Gibbs free energy, enthalpy and entropy of electrode/electrochemical cell reactions, that enable prediction of important performance attributes of electrode materials and electrochemical systems, such as the energy, power density, current rate and the cycle life of an electrochemical cell.

Reynier, Yvan (Meylan, FR); Yazami, Rachid (Los Angeles, CA); Fultz, Brent T. (Pasadena, CA)

2009-09-29T23:59:59.000Z

44

Current measuring system  

SciTech Connect

A current measuring system comprising a current measuring device having a first electrode at ground potential, and a second electrode; a current source having an offset potential of at least three hundred volts, the current source having an output electrode; and a capacitor having a first electrode electrically connected to the output electrode of the current source and having a second electrode electrically connected to the second electrode of the current measuring device.

Dahl, David A. (Idaho Falls, ID); Appelhans, Anthony D. (Idaho Falls, ID); Olson, John E. (Idaho Falls, ID)

1997-01-01T23:59:59.000Z

45

In situ measurement system  

DOE Patents (OSTI)

A multipurpose in situ underground measurement system comprising a plurality of long electrical resistance elements in the form of rigid reinforcing bars, each having an open loop hairpin configuration of shorter length than the other resistance elements. The resistance elements are arranged in pairs in a unitized structure, and grouted in place in the underground volume. Measurement means are provided for obtaining for each pair the electrical resistance of each element and the difference in electrical resistance of the paired elements, which difference values may be used in analytical methods involving resistance as a function of temperature. A scanner means sequentially connects the resistance-measuring apparatus to each individual pair of elements. A source of heating current is also selectively connectable for heating the elements to an initial predetermined temperature prior to electrical resistance measurements when used as an anemometer.

Lord, D.E.

1980-11-24T23:59:59.000Z

46

Optical absorption measurement system  

DOE Patents (OSTI)

The system of the present invention contemplates a non-intrusive method for measuring the temperature rise of optical elements under high laser power optical loading to determine the absorption coefficient. The method comprises irradiating the optical element with a high average power laser beam, viewing the optical element with an infrared camera to determine the temperature across the optical element and calculating the absorption of the optical element from the temperature.

Draggoo, V.G.; Morton, R.G.; Sawicki, R.H.; Bissinger, H.D.

1986-09-17T23:59:59.000Z

47

Optical absorption measurement system  

DOE Patents (OSTI)

The system of the present invention contemplates a non-intrusive method for measuring the temperature rise of optical elements under high laser power optical loading to determine the absorption coefficient. The method comprises irradiating the optical element with a high average power laser beam, viewing the optical element with an infrared camera to determine the temperature across the optical element and calculating the absorption of the optical element from the temperature.

Draggoo, Vaughn G. (Livermore, CA); Morton, Richard G. (San Diego, CA); Sawicki, Richard H. (Pleasanton, CA); Bissinger, Horst D. (Livermore, CA)

1989-01-01T23:59:59.000Z

48

Aerial tracking of elongated objects in rural environments  

Science Conference Proceedings (OSTI)

In this paper, a new approach to finding and tracking various land cover boundaries such as rivers, agricultural fields, channels and roads for use in visual navigation system of an unmanned aerial vehicle is presented. We use a combination of statistical ... Keywords: Aerial video processing, Boundary tracking, Colour and texture segmentation, Robust estimation, UAV visual navigation system

B. Majidi; A. Bab-Hadiashar

2008-10-01T23:59:59.000Z

49

Measuring UAS pilot responses to common air traffic clearances  

Science Conference Proceedings (OSTI)

Using a simulated ground control station, this study documents the methods for measuring the verbal response and execution time of unmanned aerial system (UAS) pilots to direct commands from air traffic controllers (ATCos). Although prior research has ... Keywords: air traffic management, measured response, unmanned aerial systems

Jason Ziccardi, Zach Roberts, Ryan O'Connor, Conrad Rorie, Gregory Morales, Vernol Battiste, Thomas Strybel, Dan Chiappe, Kim-Phuong L. Vu, Jay Shively

2013-07-01T23:59:59.000Z

50

The ARM Aerial Facility  

NLE Websites -- All DOE Office Websites (Extended Search)

ARM Aerial Facility ARM Aerial Facility in the Biomass Burn Observation Project (BBOP) 1 Beat Schmid, Technical Director Pacific Northwest National Laboratory Richland, WA Aircraft Technical Information Length: 19.4 m Wingspan: 23.9 m Height: 7.1 m Cabin space: 15.3 m 2 External probes (PMS cans): 8 Maximum gross weight: 16,330 kg Maximum Endurance: 9.5 hours Maximum Range: 4000 km Endurance with full payload: 4-5 hours Crew capacity: 7 max, 2 pilots + 3-5 scientists Cabin payload: 1,900 kg Research Power: 700A @ 28 VDC (incl. 85A @ 115 VAC, 60 Hz) Ceiling: 7.6 km G-1 (BMI owned, ARM base funded, PNNL based and managed, for the science community) AAF G-1 Plan 2013-17 Intensive Airborne Research in Amazonia (IARA) Manaus, Brazil PI: Scot Martin (Harvard)

51

An aerial radiological survey of Pocatello and Soda Springs, Idaho and surrounding area, June--July 1986  

SciTech Connect

Three aerial radiological surveys were conducted during the period 16 June through 15 July 1986 over the towns of Pocatello, Soda Springs, and Fort Hall, Idaho and the surrounding areas. The surveys were performed for the United States Environmental Protection Agency (EPA) by the United States Department of Energy's (DOE) Remote Sensing Laboratory (RSL), utilizing the Aerial Measuring System (AMS). This work was completed in cooperation with a study by the EPA to conduct a dose assessment of human radiation exposure for industrial sources in Pocatello and Soda Springs, Idaho. The aerial surveys were performed to document the natural terrestrial radiological environment of the three localities and to map the spatial extent and degree of contamination due to phosphate milling operations. The results of these surveys will be used for planning ground-based measurements in addition to being incorporated into the dose assessment document. 4 refs., 14 figs., 6 tabs.

Berry, H.A.

1987-02-01T23:59:59.000Z

52

An aerial radiological survey of the Davis-Monthan Air Force Base and surrounding area, Tucson, Arizona  

SciTech Connect

An aerial radiological survey, which was conducted from March 1 to 13, 1995, covered a 51-square-mile (132-square-kilometer) area centered on the Davis-Monthan Air Force Base (DMAFB) in Tucson, Arizona. The results of the survey are reported as contours of bismuth-214 ({sup 214}Bi) soil concentrations, which are characteristic of natural uranium and its progeny, and as contours of the total terrestrial exposure rates extrapolated to one meter above ground level. All data were scaled and overlaid on an aerial photograph of the DMAFB area. The terrestrial exposure rates varied from 9 to 20 microroentgens per hour at one meter above the ground. Elevated levels of terrestrial radiation due to increased concentrations of {sup 214}Bi (natural uranium) were observed over the Southern Pacific railroad yard and along portions of the railroad track bed areas residing both within and outside the base boundaries. No man-made, gamma ray-emitting radioactive material was observed by the aerial survey. High-purity germanium spectrometer and pressurized ionization chamber measurements at eight locations within the base boundaries were used to verify the integrity of the aerial results. The results of the aerial and ground-based measurements were found to be in agreement. However, the ground-based measurements were able to detect minute quantities of cesium-137 ({sup 137}Cs) at six of the eight locations examined. The presence of {sup 137}Cs is a remnant of fallout from foreign and domestic atmospheric nuclear weapons testing that occurred in the 1950s and early 1960s. Cesium-137 concentrations varied from 0.1 to 0.3 picocuries per gram, which is below the minimum detectable activity of the aerial system.

NONE

1995-09-01T23:59:59.000Z

53

Tracer airflow measurement system (TRAMS)  

DOE Patents (OSTI)

A method and apparatus for measuring fluid flow in a duct is disclosed. The invention uses a novel high velocity tracer injector system, an optional insertable folding mixing fan for homogenizing the tracer within the duct bulk fluid flow, and a perforated hose sampling system. A preferred embodiment uses CO.sub.2 as a tracer gas for measuring air flow in commercial and/or residential ducts. In extant commercial buildings, ducts not readily accessible by hanging ceilings may be drilled with readily plugged small diameter holes to allow for injection, optional mixing where desired using a novel insertable foldable mixing fan, and sampling hose.

Wang, Duo (Albany, CA)

2007-04-24T23:59:59.000Z

54

Aerial Photography | Open Energy Information  

Open Energy Info (EERE)

Aerial Photography Aerial Photography Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Aerial Photography Details Activities (10) Areas (9) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Remote Sensing Techniques Exploration Sub Group: Passive Sensors Parent Exploration Technique: Passive Sensors Information Provided by Technique Lithology: Stratigraphic/Structural: map structures/faults Hydrological: map surface water features Thermal: if photos taken in winter snow cover, can map thermal anomalies Cost Information Low-End Estimate (USD): 100.3610,036 centUSD 0.1 kUSD 1.0036e-4 MUSD 1.0036e-7 TUSD / sq. mile Median Estimate (USD): 240.5424,054 centUSD 0.241 kUSD 2.4054e-4 MUSD 2.4054e-7 TUSD / sq. mile High-End Estimate (USD): 2,360.00236,000 centUSD

55

West Coast Aerial Sardine Survey Application for Exempted Fishing Permit  

E-Print Network (OSTI)

West Coast Aerial Sardine Survey 2010 Application for Exempted Fishing Permit Applicants ........................................................................................5 A. Coastwide Summer Aerial Sardine Survey (July-August, 2010) ....................6 I. Survey Design ­ Coastwide Summer Aerial Sardine Survey ...............................6 Stage 1: Aerial Transect

56

Mapping Pine Mortality by Aerial Photography,  

E-Print Network (OSTI)

State Forest Service, for use of aerial survey data; Fred P. Haifl, William T. McClelland, and Michael SMapping Pine Mortality by Aerial Photography, Umstead State Park, North Carolina United States Carolina State Highway Department, for aerial photography by his staff; Coleman Doggett, North Carolina

Standiford, Richard B.

57

An aerial radiological survey of the Pilgrim Station Nuclear Power Plant and surrounding area, Plymouth, Massachusetts  

SciTech Connect

Terrestrial radioactivity surrounding the Pilgrim Station Nuclear Power Plant was measured using aerial radiolog- ical survey techniques. The purpose of this survey was to document exposure rates near the plant and to identify unexpected, man-made radiation sources within the survey area. The surveyed area included land areas within a three-mile radius of the plant site. Data were acquired using an airborne detection system that employs sodium iodide, thallium-activated detectors. Exposure rate and photopeak counts were computed from these data and plotted on aerial photographs of the survey area. Several ground-based exposure measurements were made for comparison with the,aerial survey results. Exposure rates in areas surrounding the plant site varied from 6 to 10 microroentgens per hour, with exposure rates below 6 microroentgens per hour occurring over bogs and marshy areas. Man-made radiation was found to be higher than background levels at the plant site. Radation due to nitrogen-1 6, which is produced in the steam cycle of a boiling-water reactor, was the primaty source of activity found at the plant site. Cesium-137 activity at levels slightly above those expected from natural fallout was found at isolated locations inland from the plant site. No other detectable sources of man-made radioactivity were found.

Proctor, A.E.

1997-06-01T23:59:59.000Z

58

Improved Rooftop Detection in Aerial Images with Machine Learning  

Science Conference Proceedings (OSTI)

In this paper, we examine the use of machine learning to improve a rooftop detection process, one step in a vision system that recognizes buildings in overhead imagery. We review the problem of analyzing aerial images and describe an existing system ... Keywords: applications of learning, evaluation of algorithms, learning for computer vision, supervised learning

M. A. Maloof; P. Langley; T. O. Binford; R. Nevatia; S. Sage

2003-10-01T23:59:59.000Z

59

A Comparative Analysis and Experimental Study on Wireless Aerial and Underwater Acoustic  

E-Print Network (OSTI)

A Comparative Analysis and Experimental Study on Wireless Aerial and Underwater Acoustic underwater acoustic sensor networks through the use of audio hardware built in to the sensor modules. In this paper, we explore the potential of the acoustic communication system for both aerial and underwater

Lopes, Cristina Videira

60

An Aerial Radiological Survey of the Yucca Mountain Project Proposed Land Withdrawal and Adjacent Areas  

SciTech Connect

An aerial radiological survey of the Yucca Mountain Project (YMP) proposed land withdrawal was conducted from January to April 2006, and encompassed a total area of approximately 284 square miles (73,556 hectares). The aerial radiological survey was conducted to provide a sound technical basis and rigorous statistical approach for determining the potential presence of radiological contaminants in the Yucca Mountain proposed Land withdrawal area. The survey site included land areas currently managed by the Bureau of Land Management, the U.S. Air Force as part of the Nevada Test and Training Range or the U.S. Department of Energy (DOE), National Nuclear Security Administration Nevada Site Office (NNSA/NSO) as part of the Nevada Test Site (NTS). The survey was flown at an approximate ground speed of 70 knots (36 meters per second), at a nominal altitude of 150 ft (46 m) above ground level, along a set of parallel flight lines spaced 250 ft (76 m) apart. The flight lines were oriented in a north-south trajectory. The survey was conducted by the DOE NNSA/NSO Remote Sensing Laboratory-Nellis, which is located in Las Vegas, Nevada. The aerial survey was conducted at the request of the DOE Office of Civilian Radioactive Waste Management. The primary contaminant of concern was identified by YMP personnel as cesium-137 ({sup 137}Cs). Due to the proposed land withdrawal area's proximity to the historical Nuclear Rocket Development Station (NRDS) facilities located on the NTS, the aerial survey system required sufficient sensitivity to discriminate between dispersed but elevated {sup 137}Cs levels from those normally encountered from worldwide fallout. As part of that process, the survey also measured and mapped the exposure-rate levels that currently existed within the survey area. The inferred aerial exposure rates of the natural terrestrial background radiation varied from less than 3 to 22 microroentgens per hour. This range of exposure rates was primarily due to the surface geological features within the survey area. The survey area has extensive areas of desert valleys, mountain ranges, extinct volcanic cones, and old lava flows. With the exception of five areas identified within the NRDS boundaries (discussed later in this report), there were no areas within the survey that exceeded aerial survey minimum detectable concentration levels of 0.4 through 0.7 picocuries per gram (pCi/g). The {sup 137}Cs levels do not exceed typical worldwide fallout levels for the continental United States.

Craig Lyons, Thane Hendricks

2006-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "aerial measuring system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Aerial Radiation Monitoring Data over Sea Near Fukushima | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Aerial Radiation Monitoring Data over Sea Near Fukushima Aerial Radiation Monitoring Data over Sea Near Fukushima Aerial Radiation Monitoring Data over Sea Near Fukushima The enclosed package represents radiation data collected over the ocean with the fixed-wing aircraft (C-12) on April 5th, April 18th, and May 9th. The data were collected with an array of large thallium activated sodium iodide (NaI(T)) crystals and associated readout electronics to produce time and location referenced measurements. These results represent raw data that have been validated. They do not include any further evaluation. AMS C12 Sea Data.csv AMS C12 Sea Data Dictionary.pdf AMS C12 Sea Data.kmz More Documents & Publications Social Security Number Reduction Project 2011 - Federal Viewpoint Survey Reports Appendices for the Basis Document

62

An Integrated Surface Radiation Measurement System  

Science Conference Proceedings (OSTI)

An integrated surface radiation measurement system has been developed to measure the surface radiation exchange flux. The system employs upward- and downward-looking Eppley pyrgeometers and pyranometers to separately measure four components: ...

A. C. Delany; S. R. Semmer

1998-02-01T23:59:59.000Z

63

Aerial Photography At Dixie Valley Geothermal Field Area (Blackwell, Et  

Open Energy Info (EERE)

Et Et Al., 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Aerial Photography At Dixie Valley Geothermal Field Area (Blackwell, Et Al., 2003) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique Aerial Photography Activity Date Usefulness not indicated DOE-funding Unknown Notes Geologic mapping from air photos in some places clearly located the structures in the valley and hence is very site specific. References D. D. Blackwell, K. W. Wisian, M. C. Richards, Mark Leidig, Richard Smith, Jason McKenna (2003) Geothermal Resource Analysis And Structure Of Basin And Range Systems, Especially Dixie Valley Geothermal Field, Nevada Retrieved from "http://en.openei.org/w/index.php?title=Aerial_Photography_At_Dixie_Valley_Geothermal_Field_Area_(Blackwell,_Et_Al.,_2003)&oldid=388817

64

System for measuring film thickness  

DOE Patents (OSTI)

A system for determining the thicknesses of thin films of materials exhibiting fluorescence in response to exposure to excitation energy from a suitable source of such energy. A section of film is illuminated with a fixed level of excitation energy from a source such as an argon ion laser emitting blue-green light. The amount of fluorescent light produced by the film over a limited area within the section so illuminated is then measured using a detector such as a photomultiplier tube. Since the amount of fluorescent light produced is a function of the thicknesses of thin films, the thickness of a specific film can be determined by comparing the intensity of fluorescent light produced by this film with the intensity of light produced by similar films of known thicknesses in response to the same amount of excitation energy. The preferred embodiment of the invention uses fiber optic probes in measuring the thicknesses of oil films on the operational components of machinery which are ordinarily obscured from view.

Batishko, Charles R. (West Richland, WA); Kirihara, Leslie J. (Richland, WA); Peters, Timothy J. (Richland, WA); Rasmussen, Donald E. (Richland, WA)

1990-01-01T23:59:59.000Z

65

Synoptic Aerial Surveys and Abundance Estimates for Ice-associated Seals in US and Russian Waters Michael Cameron, Peter Boveng, Erin Moreland and Jay Ver Hoef  

E-Print Network (OSTI)

Synoptic Aerial Surveys and Abundance Estimates for Ice-associated Seals in US and Russian Waters synoptic aerial surveys of the eastern Bering Sea in tandem with Russian researchers employed to survey. Testing a ship-based Unmanned Aerial System (UAS) for surveying the Bering Sea pack ice. AFSC Quarterly

66

Surface Microstructure Extraction from Multiple Aerial Images  

E-Print Network (OSTI)

In this paper we present a system that recovers building facet images from multiple source images and, as a first step towards detailed analysis of microstructures, extracts windows from walls. The system employs a sophisticated multi-image texture mapping technique to eliminate the corrupting effects of shadows and occlusions and to find a "best piece representation" of each facet. The system is model-driven, providing a context-based environment for microstructure analysis. The window extraction module focuses attention on wall facets, attempting to extract the 2-D window patterns attached to the walls using an oriented region growing technique. High-level knowledge is incorporated to simplify the computation of symbolic window extraction. The algorithms are typically useful in urban sites. Experiments show successful applications of this approach to site model refinement. Keywords: microstructure extraction, model refinement, texture mapping, aerial imagery, image understanding 1 I...

Xiaoguang Wang; Robert T. Collins; Jeff Dehart

1997-01-01T23:59:59.000Z

67

Measuring Advances in HVAC Distribution System Design  

E-Print Network (OSTI)

Gabel and Andresen, HVAC Secondary Toolkil. Atlanta: ASHRAE,P_02 Measuring Advances in HVAC Distribution System Designdesign and operation of the HVAC thermal distribution system

Franconi, E.

2011-01-01T23:59:59.000Z

68

Measuring Outdoor Airflow into HVAC Systems  

E-Print Network (OSTI)

MEASURING OUTDOOR AIRFLOW INTO HVAC SYSTEMS W i l l i a m J.minimum OA flow rate if HVAC system has an economizer

Fisk, William J.; Faulkner, David; Sullivan, Douglas P.

2005-01-01T23:59:59.000Z

69

Aerial Photography (Nannini, 1986) | Open Energy Information  

Open Energy Info (EERE)

Aerial Photography (Nannini, 1986) Aerial Photography (Nannini, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Aerial Photography (Nannini, 1986) Exploration Activity Details Location Unspecified Exploration Technique Aerial Photography Activity Date Usefulness could be useful with more improvements DOE-funding Unknown Notes Tectonic studies, through air photointerpretation and subsequent ground surveys of the main features, represent the next step in such an analysis. Photo analysis and ground surveys can identify regional distensive faults that formed after compressive orogenic activity. Quaternary formations and very recent debris intersected by faults are indicative of a neotectonic activity. References Raffaello Nannini (1986) Some Aspects Of Exploration In Non-Volcanic

70

Phase measurement system using a dithered clock  

DOE Patents (OSTI)

A phase measurement system is disclosed which measures the phase shift between two signals by dithering a clock signal and averaging a plurality of measurements of the phase differences between the two signals. 8 figures.

Fairley, C.R.; Patterson, S.R.

1991-05-28T23:59:59.000Z

71

NIST National Measurement System Assessment ...  

Science Conference Proceedings (OSTI)

... Measurement Need Datum (MN) Technology at Issue: Top Down Micro/Nano Manufacturing Submitter(s): Nicholas G. Dagalakis ...

2013-07-01T23:59:59.000Z

72

An aerial radiological survey of the Nevada Test Site  

SciTech Connect

A team from the Remote Sensing Laboratory conducted an aerial radiological survey of the US Department of Energy's Nevada Test Site including three neighboring areas during August and September 1994. The survey team measured the terrestrial gamma radiation at the Nevada Test Site to determine the levels of natural and man-made radiation. This survey included the areas covered by previous surveys conducted from 1962 through 1993. The results of the aerial survey showed a terrestrial background exposure rate that varied from less than 6 microroentgens per hour (mR/h) to 50 mR/h plus a cosmic-ray contribution that varied from 4.5 mR/h at an elevation of 900 meters (3,000 feet) to 8.5 mR/h at 2,400 meters (8,000 feet). In addition to the principal gamma-emitting, naturally occurring isotopes (potassium-40, thallium-208, bismuth-214, and actinium-228), the man-made radioactive isotopes found in this survey were cobalt-60, cesium-137, europium-152, protactinium-234m an indicator of depleted uranium, and americium-241, which are due to human actions in the survey area. Individual, site-wide plots of gross terrestrial exposure rate, man-made exposure rate, and americium-241 activity (approximating the distribution of all transuranic material) are presented. In addition, expanded plots of individual areas exhibiting these man-made contaminations are given. A comparison is made between the data from this survey and previous aerial radiological surveys of the Nevada Test Site. Some previous ground-based measurements are discussed and related to the aerial data. In regions away from man-made activity, the exposure rates inferred from the gamma-ray measurements collected during this survey agreed very well with the exposure rates inferred from previous aerial surveys.

Hendricks, T J; Riedhauser, S R

1999-12-01T23:59:59.000Z

73

An aerial radiological survey of the Oyster Creek Nuclear Power Plant and surrounding area, Forked River, New Jersey. Date of survey: September 18--25, 1992  

SciTech Connect

An aerial radiological survey was conducted over the Oyster Creek Nuclear Power Plant in Forked River, New Jersey, during the period September 18 through September 24, 1992. The survey was conducted at an altitude of 150 feet (46 meters) over a 26-square-mile (67-square-kilometer) area centered on the power station. The purpose of the survey was to document the terrestrial gamma radiation environment of the Oyster Creek Nuclear Power plant and surrounding area. The results of the aerial survey are reported as inferred gamma radiation exposure rates at 1 meter above ground level in the form of a contour map. Outside the plant boundary, exposure rates were found to vary between 4 and 10 microroentgens per hour and were attributed to naturally-occurring uranium, thorium, and radioactive potassium gamma emitters. The aerial data were compared to ground-based benchmark exposure rate measurements and radionuclide assays of soil samples obtained within the survey boundary. The ground-based measurements were found to be in good agreement with those inferred from the aerial measuring system. A previous survey of the power plant was conducted in August 1969 during its initial startup phase. Exposure rates and radioactive isotopes revealed in both surveys were consistent and within normal terrestrial background levels.

Hopkins, H.A.; McCall, K.A.

1994-05-01T23:59:59.000Z

74

Directional Wavelet Analysis of Inhomogeneity in the Surface Wave Field from Aerial Laser Scanning Data  

Science Conference Proceedings (OSTI)

Modern measurement techniques such as aerial laser scanning allow for rapid determination of the spatial variation of sea surface elevation. Wave fields obtained from such data show spatial inhomogeneity associated with the presence of wave ...

Richard M. Gorman; D. Murray Hicks

2005-06-01T23:59:59.000Z

75

Electrochemical Thermodynamic Measurement System - Energy ...  

The present invention provides systems and methods for accurately characterizing thermodynamic and materials properties of electrodes and electrochemical energy ...

76

Car Detection in Low Resolution Aerial Images  

E-Print Network (OSTI)

We present a system to detect passenger cars in aerial images wherecars appear as small objects. We pose this as a 3D object recognition problem to account for the variation in viewpoint and the shadow. We startedfrom psychological tests to find important features for human detection of cars. Based on these observations, we selected the boundary of the car body, the boundary of the front windshield, and the shadow as the features. Some of these features are affected by the intensity of the car and whether or not there is a shadow along it. This information is represented in the structure of the Bayesian network that we use to integrate all features. Experiments show very promising results even on some very challenging images. 1

Tao Zhao; Ram Nevatia

2001-01-01T23:59:59.000Z

77

Specifics of aircraft control algorithms in the case of aerial survey  

Science Conference Proceedings (OSTI)

This paper considers the control problem for a piloted atmospheric aircraft during execution of different flight missions. The basic control schemes are identified in the case of aerial survey. Modern control systems are compared and analyzed. A software ...

E. V. Karshakov

2013-12-01T23:59:59.000Z

78

HTGR Measurements and Instrumentation Systems  

SciTech Connect

This report provides an integrated overview of measurements and instrumentation for near-term future high-temperature gas-cooled reactors (HTGRs). Instrumentation technology has undergone revolutionary improvements since the last HTGR was constructed in the United States. This report briefly describes the measurement and communications needs of HTGRs for normal operations, maintenance and inspection, fuel fabrication, and accident response. The report includes a description of modern communications technologies and also provides a potential instrumentation communications architecture designed for deployment at an HTGR. A principal focus for the report is describing new and emerging measurement technologies with high potential to improve operations, maintenance, and accident response for the next generation of HTGRs, known as modular HTGRs, which are designed with passive safety features. Special focus is devoted toward describing the failure modes of the measurement technologies and assessing the technology maturity.

Ball, Sydney J [ORNL; Holcomb, David Eugene [ORNL; Cetiner, Mustafa Sacit [ORNL

2012-05-01T23:59:59.000Z

79

Aerial Photography At Truckhaven Area (Layman Energy Associates...  

Open Energy Info (EERE)

Aerial Photography At Truckhaven Area (Layman Energy Associates, 2006) Exploration Activity Details Location Truckhaven Area Exploration Technique Aerial Photography Activity Date...

80

Aerial survey finds no increase in radioactivity for Los Alamos...  

NLE Websites -- All DOE Office Websites (Extended Search)

Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > NNSA Blog > Aerial survey finds no increase in radioactivity ... Aerial survey finds no increase in...

Note: This page contains sample records for the topic "aerial measuring system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

An aerial radiological survey of the Robert Emmett Ginna Nuclear Power Plant and surrounding area, Ontario, New York  

SciTech Connect

Terrestrial radioactivity surrounding the Robert Emmett Ginna Nuclear Power Plant was measured using aerial radiological surveying techniques. The purpose of this survey was to document exposure rates near the plant and to identify unexpected, man-made radiation sources within the survey area. The surveyed area included land areas within a three-mile radius of the plant site. Data were acquired using an airborne detection system that employed sodium iodide, thallium-activated detectors. Exposure-rate and photopeak counts were computed from these data and plotted on aerial photographs of the survey area. Several ground-based exposure measurements were made for comparison with the aerial survey results. Exposure rates in the area surrounding the plant site varied from 6 to 10 microroentgens per hour. Man-made radiation (cobalt-60 within the plant site and cesium-1 37 directly over the reactor) was found at the plant site. In addition, small areas of suspected cesium-137 activity were found within the survey areas. Other than these small sites, the survey area was free of man-made radioac- tivity.

Proctor, A.E.

1997-06-01T23:59:59.000Z

82

System Performance Measurement Supports Design Recommendations...  

NLE Websites -- All DOE Office Websites (Extended Search)

Performance Measurement Supports Design Recommendations for Solar Ventilation Preheat System The U.S. Department of Energy's (DOE) Federal Energy Management Program (FEMP)...

83

System to measure heart performance  

Science Conference Proceedings (OSTI)

Systems to measureheart condition are applied to patients with early or chronic cardiac problems with the aim of diagnosing and exactly locat? ing the problem. Two very important factors exist that are taken into account in order to obtain a reliable diagnosis and to be able to give suitable medical treatment. One of them is the volume of blood that the heart pumps

2002-01-01T23:59:59.000Z

84

Particle measurement systems and methods  

SciTech Connect

A system according to one embodiment includes a light source for generating light fringes; a sampling mechanism for directing a particle through the light fringes; and at least one light detector for detecting light scattered by the particle as the particle passes through the light fringes. A method according to one embodiment includes generating light fringes using a light source; directing a particle through the light fringes; and detecting light scattered by the particle as the particle passes through the light fringes using at least one light detector.

Steele, Paul T. (Livermore, CA)

2011-10-04T23:59:59.000Z

85

Geothermal Energy Resource Investigations, Chocolate Mountains Aerial  

Open Energy Info (EERE)

Investigations, Chocolate Mountains Aerial Investigations, Chocolate Mountains Aerial Gunnery Range, Imperial Valley, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Geothermal Energy Resource Investigations, Chocolate Mountains Aerial Gunnery Range, Imperial Valley, California Details Activities (5) Areas (1) Regions (0) Abstract: The US Navy's Geothermal Program Office (GPO), has conducted geothermal exploration in the Chocolate Mountains Aerial Gunnery Range (CMAGR) since the mid-1970s. At this time, the focus of the GPO had been on the area to the east of the Hot Mineral Spa KGRA, Glamis and areas within the Chocolate Mountains themselves. Using potential field geophysics, mercury surveys and geologic mapping to identify potential anomalies related to recent hydrothermal activity. After a brief hiatus starting in

86

Vehicle and Person Tracking in Aerial Videos  

Science Conference Proceedings (OSTI)

This paper presents two tracking approaches from Sarnoff Corporation to detect moving vehicles and person in the videos taken from aerial platform or plane. In the first approach, we combine layer segmentation approach with background stabilization and ...

Jiangjian Xiao; Changjiang Yang; Feng Han; Hui Cheng

2008-01-01T23:59:59.000Z

87

The Fork+ burnup measurement system: Design and first measurement campaign  

SciTech Connect

Previous work with the original Fork detector showed that burnup as determined by reactor records could be accurately allocated to spent nuclear fuel assemblies. The original Fork detector, designed by Los Alamos National Laboratory, used an ion chamber to measure gross gamma count and a fission chamber to measure neutrons from an activation source, {sup 244}Cm. In its review of the draft Topical Report on Burnup Credit, the US Nuclear Regulatory Commission indicated it felt uncomfortable with a measurement system that depended on reactor records for calibration. The Fork+ system was developed at Sandia National Laboratories under the sponsorship of the Electric Power Research Institute with the aim of providing this independent measurement capability. The initial Fork+ prototype was used in a measurement campaign at the Maine Yankee reactor. The campaign confirmed the applicability of the sensor approach in the Fork+ system and the efficiency of the hand-portable Fork+ prototype in making fuel assembly measurements. It also indicated potential design modifications that will be necessary before the Fork+ can be used effectively on high-burnup spent fuel.

Olson, C.E.; Bronowski, D.R.; McMurtry, W. [Sandia National Labs. (United States); Ewing, R. [Electric Power Research Inst. (United States); Jordan, R.; Rivard, D. [Maine Yankee Atomic Power Co., Westboro, MA (United States)

1998-12-31T23:59:59.000Z

88

Radiation beam calorimetric power measurement system  

DOE Patents (OSTI)

A radiation beam calorimetric power measurement system for measuring the average power of a beam such as a laser beam, including a calorimeter configured to operate over a wide range of coolant flow rates and being cooled by continuously flowing coolant for absorbing light from a laser beam to convert the laser beam energy into heat. The system further includes a flow meter for measuring the coolant flow in the calorimeter and a pair of thermistors for measuring the temperature difference between the coolant inputs and outputs to the calorimeter. The system also includes a microprocessor for processing the measured coolant flow rate and the measured temperature difference to determine the average power of the laser beam.

Baker, John (Livermore, CA); Collins, Leland F. (Pleasanton, CA); Kuklo, Thomas C. (Ripon, CA); Micali, James V. (Dublin, CA)

1992-01-01T23:59:59.000Z

89

Radar System Errors in Polarization Diversity Measurements  

Science Conference Proceedings (OSTI)

The measurement capability of a polarization diversity radar is limited by several characteristics of the system and particularly by the performance of the antenna, which is characterized by the integrated cancellation ratio or integrated cross-...

James I. Metcalf; James S. Ussailis

1984-06-01T23:59:59.000Z

90

Heterodyne laser instantaneous frequency measurement system  

DOE Patents (OSTI)

A heterodyne laser instantaneous frequency measurement system is disclosed. The system utilizes heterodyning of a pulsed laser beam with a continuous wave laser beam to form a beat signal. The beat signal is processed by a controller or computer which determines both the average frequency of the laser pulse and any changes or chirp of the frequency during the pulse.

Wyeth, Richard W. (Livermore, CA); Johnson, Michael A. (Pleasanton, CA); Globig, Michael A. (Livermore, CA)

1990-01-01T23:59:59.000Z

91

Heterodyne laser instantaneous frequency measurement system  

DOE Patents (OSTI)

A heterodyne laser instantaneous frequency measurement system is disclosed. The system utilizes heterodyning of a pulsed laser beam with a continuous wave laser beam to form a beat signal. The beat signal is processed by a controller or computer which determines both the average frequency of the laser pulse and any changes or chirp of th frequency during the pulse.

Wyeth, Richard W. (Livermore, CA); Johnson, Michael A. (Pleasanton, CA); Globig, Michael A. (Livermore, CA)

1989-01-01T23:59:59.000Z

92

An Unmanned Aircraft System for Automatic Forest Fire Monitoring and Measurement  

Science Conference Proceedings (OSTI)

The paper presents an Unmanned Aircraft System (UAS), consisting of several aerial vehicles and a central station, for forest fire monitoring. Fire monitoring is defined as the computation in real-time of the evolution of the fire front shape and potentially ... Keywords: Cooperative perception, Forest fire fighting, UAS

Luis Merino; Fernando Caballero; J. Ramiro Martínez-De-Dios; Iván Maza; Aníbal Ollero

2012-01-01T23:59:59.000Z

93

Laser Doppler Velocimeter particle velocity measurement system  

DOE Green Energy (OSTI)

This report gives a detailed description of the operation of the Laser Doppler Velocimeter (LDV) system maintained by DIAL at MSU. LDV is used for the measurement of flow velocities and turbulence levels in various fluid flow settings. Ills report details the operation and maintenance of the LDV system and provides a first-time user with pertinent information regarding the system`s setup for a particular application. Particular attention has been given to the use of the Doppler signal analyzer (DSA) and the burst spectrum analyzer (BSA) signal processors and data analysis.

Wilson, W.W.; Srikantaiah, D.V.; Philip, T.; George, A.

1993-10-01T23:59:59.000Z

94

Measuring Residential Ventilation System Airflows: Part 2 - Field...  

NLE Websites -- All DOE Office Websites (Extended Search)

Measuring Residential Ventilation System Airflows: Part 2 - Field Evaluation of Airflow Meter Devices and System Flow Verification Title Measuring Residential Ventilation System...

95

Development of a Seafloor Earthquake Measurement System  

SciTech Connect

A Seafloor Earthquake Measurement System is being developed at Sandia to measure marine sediment response to seismic activity. The system will use an acoustic telemetry system to transmit commands to and collect data from the seafloor package. The seafloor package contains a microprocessor which controls the data collection, data processing, and acoustic telemetry. A one million bit magnetic bubble memory is used for storage of seismic data obtained from a three-axis accelerometer package. The microprocessor continuously compares the incoming data in mass memory and saves the ''best'' data for later readout by the acoustic telemetry system. The seafloor package consists of a ballast emplaced pressure vessel and probe containing the accelerometer. After the probe is inserted into the sediment, the ballast weight is removed and a section of the probe is retracted to mechanically isolate the accelerometers.

Ryerson, D.E.; Reece, E.W.

1978-01-01T23:59:59.000Z

96

Cooperative Large Area Surveillance with a Team of Aerial Mobile Robots for Long Endurance Missions  

Science Conference Proceedings (OSTI)

This paper proposes a distributed approach to solve long duration area surveillance missions with a team of aerial robots, taking into account communication constraints. The system, based on "one-to-one" coordination, minimizes the probability that any ... Keywords: Area surveillance, Cooperation, Coordination, Decentralized systems, Long endurance missions, Multi-UAS systems

Jose Joaquin Acevedo; Begoña C. Arrue; Ivan Maza; Anibal Ollero

2013-04-01T23:59:59.000Z

97

Aerial survey of Bay Area continues through Saturday | National...  

NLE Websites -- All DOE Office Websites (Extended Search)

Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > NNSA Blog > Aerial survey of Bay Area continues through Saturday Aerial survey of Bay Area continues...

98

Torsional ultrasonic wave based level measurement system  

SciTech Connect

A level measurement system suitable for use in a high temperature and pressure environment to measure the level of coolant fluid within the environment, the system including a volume of coolant fluid located in a coolant region of the high temperature and pressure environment and having a level therein; an ultrasonic waveguide blade that is positioned within the desired coolant region of the high temperature and pressure environment; a magnetostrictive electrical assembly located within the high temperature and pressure environment and configured to operate in the environment and cooperate with the waveguide blade to launch and receive ultrasonic waves; and an external signal processing system located outside of the high temperature and pressure environment and configured for communicating with the electrical assembly located within the high temperature and pressure environment.

Holcomb, David E. (Oak Ridge, TN); Kisner, Roger A. (Knoxville, TN)

2012-07-10T23:59:59.000Z

99

An Aerial Radiological Survey of the City of North Las Vegas (Downtown) and the Motor Speedway  

SciTech Connect

As part of the proficiency training for the Radiological Mapping mission of the Aerial Measuring System (AMS), a survey team from the Remote Sensing Laboratory-Nellis (RSL-Nellis) conducted an aerial radiological survey on December 11-12, 2007, with the purpose of mapping natural radiation background and locating any man-made radioactive sources. The survey covered 19.4 square miles (9.2 square miles over the downtown area of the City of North Las Vegas and 10.2 square miles over the Las Vegas Motor Speedway [LVMS]). The flight lines over the surveyed areas are presented in Figures 1 and 2. A total of four 2.5-hour-long flights were performed at an altitude of 150 ft above ground level (AGL) with 300 ft of flight line spacing. Water line and test line flights were conducted over the Lake Mead and Government Wash areas to ensure quality control of the data. The data were collected by the AMS data acquisition system-REDAR V using an array of twelve 2-inch x 4-inch x 16-inch sodium iodide (NaI) detectors flown on-board a twin-engine Bell 412 helicopter. Data in the form of gamma energy spectra were collected continually (every second) over the course of the survey and were geo-referenced using a differential Global Positioning System. Collection of spectral data allows the system to distinguish between ordinary fluctuations in natural background radiation levels and the signature produced by man-made radioisotopes sources. Spectral data can also be used to identify specific radioactive isotopes. As a courtesy service with the approval of the U.S. Department of Energy, National Nuclear Security Administration, Nevada Site Office, RSL-Nellis is providing this summary to the office of the Mayor of City of North Las Vegas and LVMS security along with the gross counts-based exposure rate and man-made counts maps.

Piotr Wasiolek

2007-12-01T23:59:59.000Z

100

An aerial radiological survey of the project Rio Blanco and surrounding area  

SciTech Connect

A team from the Remote Sensing Laboratory in Las Vegas, Nevada, conducted an aerial radiation survey of the area surrounding ground zero of Project Rio Blanco in the northwestern section of Colorado in June 1993. The object of the survey was to determine if there were man-made radioisotopes on or near the surface resulting from a nuclear explosion in 1972. No indications of surface contamination were found. A search for the cesium-137 radioisotope was negative. The Minimum Detectable Activity for cesium-137 is presented for several detection probabilities. The natural terrestrial exposure rates in units of Roentgens per hour were mapped and are presented in the form of a contour map over-laid on an aerial photograph. A second team made independent ground-based measurements in four places within the survey area. The average agreement of the ground-based with aerial measurements was six percent.

Singman, L.V.

1994-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "aerial measuring system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Deployable aerial communication networks: challenges for futuristic applications  

Science Conference Proceedings (OSTI)

Aerial (or airborne) telecommunications have been investigated for three decades through the design and the evaluation of stratospheric platforms able to offer multiple types of wireless services. More recently though, a wide range of lower altitude ... Keywords: aerial networks, high altitude platforms, low altitude platforms, unmanned aerial vehicles

Laurent Reynaud; Tinku Rasheed

2012-10-01T23:59:59.000Z

102

A Hierarchical and Contextual Model for Aerial Image Parsing  

Science Conference Proceedings (OSTI)

In this paper we present a hierarchical and contextual model for aerial image understanding. Our model organizes objects (cars, roofs, roads, trees, parking lots) in aerial scenes into hierarchical groups whose appearances and configurations are determined ... Keywords: Aerial images, Bayesian inference, Hierarchical models, Image understanding, Scene-level context, Statistical learning, Swendsen-Wang clustering

Jake Porway; Qiongchen Wang; Song Chun Zhu

2010-06-01T23:59:59.000Z

103

Bowhead Whale Aerial Survey Project (BWASP) Status Update in 2009  

E-Print Network (OSTI)

Bowhead Whale Aerial Survey Project (BWASP) Status Update in 2009 Janet Clarke1, Cynthia Christman2 Corporation, Buckley, WA, janet.clarke@saic.com ABSTRACT The Bowhead Whale Aerial Survey Project (BWASP) has farther north. METHODS Aerial surveys were flown in a de Havilland Twin Otter with 6-8 hours range

104

AERIAL SURVEYS FOR MANATEES AND DOLPHINS IN WESTERN PENINSULAR FLORIDA  

E-Print Network (OSTI)

AERIAL SURVEYS FOR MANATEES AND DOLPHINS IN WESTERN PENINSULAR FLORIDA A. BLAIR IRVINE,! JOHN E. CAFFIN,2 AND HOWARD I. KOCHMAN! ABSTRACT Low altitude aerial surveys were conducted to count West Indian and Campbell 1978). Aerial surveys indicate that bottlenose dolphins are also well dispersed in coastal waters

105

West Coast Aerial Sardine Survey Application for Exempted Fishing Permit  

E-Print Network (OSTI)

West Coast Aerial Sardine Survey 2011 Application for Exempted Fishing Permit Applicant Scientific Field Leader: Ryan Howe May 9, 2011 1 #12;West Coast Aerial Sardine Survey Application Requirements ................... 51 2 #12;West Coast Aerial Sardine Survey Application for Exempted Fishing

106

Aerial surveys for sea turtles in North Carolina inshore waters  

E-Print Network (OSTI)

Aerial surveys for sea turtles in North Carolina inshore waters Sheryan P. Epperly Joanne Braun Service, NOAA Beaufort, NC 285 J6 Abstract.-Aerial surveys for sea turtles conducted in Core SoundI., in press, a). As part of the same study, aerial surveys were employed over a 3-yr period to provide

107

Aerial image classification using structural texture similarity  

Science Conference Proceedings (OSTI)

There is an increasing need for algorithms for automatic analysis of remote sensing images and in this paper we address the problem of semantic classification of aerial images. For the task at hand we propose and evaluate local structural texture descriptor ...

Vladimir Risojevic; Zdenka Babic

2011-12-01T23:59:59.000Z

108

Measuring and Synthesizing Systems in Probabilistic Environments  

E-Print Network (OSTI)

Often one has a preference order among the different systems that satisfy a given specification. Under a probabilistic assumption about the possible inputs, such a preference order is naturally expressed by a weighted automaton, which assigns to each word a value, such that a system is preferred if it generates a higher expected value. We solve the following optimal-synthesis problem: given an omega-regular specification, a Markov chain that describes the distribution of inputs, and a weighted automaton that measures how well a system satisfies the given specification under the given input assumption, synthesize a system that optimizes the measured value. For safety specifications and measures that are defined by mean-payoff automata, the optimal-synthesis problem amounts to finding a strategy in a Markov decision process (MDP) that is optimal for a long-run average reward objective, which can be done in polynomial time. For general omega-regular specifications, the solution rests on a new, polynomial-time al...

Chatterjee, Krishnendu; Jobstmann, Barbara; Singh, Rohit

2010-01-01T23:59:59.000Z

109

Eddy Correlation Flux Measurement System (ECOR) Handbook  

SciTech Connect

The eddy correlation (ECOR) flux measurement system provides in situ, half-hour measurements of the surface turbulent fluxes of momentum, sensible heat, latent heat, and carbon dioxide (CO2) (and methane at one Southern Great Plains extended facility (SGP EF) and the North Slope of Alaska Central Facility (NSA CF). The fluxes are obtained with the eddy covariance technique, which involves correlation of the vertical wind component with the horizontal wind component, the air temperature, the water vapor density, and the CO2 concentration.

Cook, DR

2011-01-31T23:59:59.000Z

110

Measuring rates of outdoor airflow into HVAC systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Measuring rates of outdoor airflow into HVAC systems Title Measuring rates of outdoor airflow into HVAC systems Publication Type Journal Article LBNL Report Number LBNL-51583 Year...

111

Computer Measurement and Automation System for Gas-fired Heating...  

NLE Websites -- All DOE Office Websites (Extended Search)

Computer Measurement and Automation System for Gas-fired Heating Furnace Title Computer Measurement and Automation System for Gas-fired Heating Furnace Publication Type Journal...

112

Load Control for System Reliability and Measurement-Based Stability...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Load Control for System Reliability and Measurement-Based Stability Assessment Load Control for System Reliability and Measurement-Based Stability Assessment Research and develop...

113

System and method for measuring residual stress  

DOE Patents (OSTI)

The present invention is a method and system for determining the residual stress within an elastic object. In the method, an elastic object is cut along a path having a known configuration. The cut creates a portion of the object having a new free surface. The free surface then deforms to a contour which is different from the path. Next, the contour is measured to determine how much deformation has occurred across the new free surface. Points defining the contour are collected in an empirical data set. The portion of the object is then modeled in a computer simulator. The points in the empirical data set are entered into the computer simulator. The computer simulator then calculates the residual stress along the path which caused the points within the object to move to the positions measured in the empirical data set. The calculated residual stress is then presented in a useful format to an analyst.

Prime, Michael B. (Los Alamos, NM)

2002-01-01T23:59:59.000Z

114

Fluid permeability measurement system and method  

DOE Patents (OSTI)

A system for measuring the permeance of a material. The permeability of the material may also be derived. The system provides a liquid or high concentration fluid bath on one side of a material test sample, and a gas flow across the opposing side of the material test sample. The mass flow rate of permeated fluid as a fraction of the combined mass flow rate of gas and permeated fluid is used to calculate the permeance of the material. The material test sample may be a sheet, a tube, or a solid shape. Operational test conditions may be varied, including concentration of the fluid, temperature of the fluid, strain profile of the material test sample, and differential pressure across the material test sample.

Hallman, Jr., Russell Louis (Knoxville, TN); Renner, Michael John (Oak Ridge, TN)

2008-02-05T23:59:59.000Z

115

Material permeance measurement system and method  

DOE Patents (OSTI)

A system for measuring the permeance of a material. The permeability of the material may also be derived. The system provides a liquid or high concentration fluid bath on one side of a material test sample, and a gas flow across the opposing side of the material test sample. The mass flow rate of permeated fluid as a fraction of the combined mass flow rate of gas and permeated fluid is used to calculate the permeance of the material. The material test sample may be a sheet, a tube, or a solid shape. Operational test conditions may be varied, including concentration of the fluid, temperature of the fluid, strain profile of the material test sample, and differential pressure across the material test sample.

Hallman, Jr., Russell Louis (Knoxville, TN); Renner, Michael John (Oak Ridge, TN)

2012-05-08T23:59:59.000Z

116

Supervised Parametric Classification of Aerial LiDAR Data  

E-Print Network (OSTI)

In this work, we classify 3D aerial LiDAR height data into roads, grass, buildings, and trees using a supervised parametric classification algorithm. Since the terrain is highly undulating, we subtract the terrain elevations using digital elevation models (DEMs, easily available from the United States Geological Survey (USGS)) to obtain the height of objects from a flat level. In addition to this height information, we use height texture (variation in height), intensity (amplitude of lidar response), and multiple (two) returns from lidar to classify the data. Furthermore, we have used luminance (measured in the visible spectrum) from aerial imagery as the fifth feature for classification. We have used mixture of Gaussian models for modeling the training data. Model parameters and the posterior probabilities are estimated using Expectation-Maximization (EM) algorithm. We have experimented with different number of components per model and found that four components per model yield satisfactory results. We have tested the results using leaveone -out as well as random test. Classification results are in the range of 66% -- 84% depending upon the combination of features used that compares very favorably with. trainall -test-all results of 85%. Further improvement is achieved using spatial coherence.

Amin P. Charaniya; Roberto Manduchi; Roberto M; Suresh K. Lodha

2004-01-01T23:59:59.000Z

117

Ultrasonic thickness measuring imaging system and method  

DOE Patents (OSTI)

This invention is comprised of an ultrasonic thickness measuring and imaging system in which an ultrasonic probe for measuring thickness of an object, such as a wall of tube, a computer for controlling movement of the probe in a scanning pattern within the tube and processing an analog signal produced by the probe which is proportional to the tube wall thickness in the scanning pattern and a line scan recorder for producing a record of the tube wall thicknesses measured by the probe in the scanning pattern. The probe is moved in the scanning pattern to sequentially scan circumferentially the interior tube wall at spaced apart adjacent axial locations. The computer processes the analog signal by converting it to a digital signal into a multiplicity of thickness points with each falling in one of a plurality of thickness ranges corresponding to one of plurality of shades of grey. From the multiplicity of quantified thickness points, a line scan recorder connected to the computer generates a pictorial map of tube wall thicknesses with each quantified thickness point thus being obtained from a minute area of the tube wall and representing one pixel of the pictorial map. In the pictorial map of tube wall thicknesses, the pixels represent different wall thicknesses having different shades of grey.

Bylenok, P.J.; Patmos, W.M.; Wagner, T.A.; Martin, F.H.

1990-01-01T23:59:59.000Z

118

Aerial Photography At Pilgrim Hot Springs Area (Prakash, Et Al...  

Open Energy Info (EERE)

search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Aerial Photography At Pilgrim Hot Springs Area (Prakash, Et Al., 2010) Exploration Activity Details Location...

119

Aerial Photography At Dixie Valley Geothermal Field Area (Blackwell...  

Open Energy Info (EERE)

search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Aerial Photography At Dixie Valley Geothermal Field Area (Blackwell, Et Al., 2003) Exploration Activity Details...

120

Aerial Photography At Dixie Valley Geothermal Field Area (Wesnousky...  

Open Energy Info (EERE)

search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Aerial Photography At Dixie Valley Geothermal Field Area (Wesnousky, Et Al., 2003) Exploration Activity Details...

Note: This page contains sample records for the topic "aerial measuring system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Aerial Photography At Nevada Test And Training Range Area (Sabin...  

Open Energy Info (EERE)

Nevada Test And Training Range Area (Sabin, Et Al., 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Aerial Photography At Nevada Test And...

122

NNSA to Conduct Aerial Radiation Monitoring Survey over Baltimore...  

NLE Websites -- All DOE Office Websites (Extended Search)

Conduct Aerial Radiation Monitoring Survey over Baltimore Jan. 15-16 | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering...

123

Building model reconstruction from lidar data and aerial photographs.  

E-Print Network (OSTI)

??The objective of this research is to reconstruct 3D building models from imagery and LIDAR data. The images used are stereo aerial photographs with known… (more)

Ma, Ruijin

2005-01-01T23:59:59.000Z

124

Results for the LISA Phase Measurement System Project  

E-Print Network (OSTI)

This article presents some of the more topical results of a study into the LISA phase measurement system. This system is responsible for measuring the phase of the heterodyne signal caused by the interference of the laser beams between the local and far spacecraft. Interactions with the LISA systems that surround the phase measurement system imply additional non-trivial requirements on the phase measurement system.

David Summers; David Hoyland

2004-11-01T23:59:59.000Z

125

TRAMS: A New Tracer Gas Airflow Measurement System - Energy ...  

Traditional measurement systems use Pitot-static tubes or hot-wire or other anemometers to measure velocities ... Hydrogen and Fuel Cell; Hydropower, ...

126

Enterprise performance measurement system : metric design framework and tools  

E-Print Network (OSTI)

Existing metric selection methodologies and performance measurement frameworks provide practicing managers with good checklists and tools to evaluate and design their enterprise performance measurement systems (EPMS) and ...

Teo, Kai Siang

2013-01-01T23:59:59.000Z

127

US National Work Group on Measuring Systems for Electric ...  

Science Conference Proceedings (OSTI)

US National Work Group on Measuring Systems for Electric Vehicle Fueling and Submetering (USNWG EVF&S) Meeting. Purpose: ...

2013-02-19T23:59:59.000Z

128

An aerial radiological survey of the Ames Laboratory and surrounding area, Ames, Iowa. Date of survey: July 1991  

Science Conference Proceedings (OSTI)

An aerial radiological survey of the Ames Laboratory and surrounding area in Ames, Iowa, was conducted during the period July 15--25, 1991. The purpose of the survey was to measure and document the terrestrial radiological environment at the Ames Laboratory and the surrounding area for use in effective environmental management and emergency response planning. The aerial survey was flown at an altitude of 200 feet (61 meters) along a series of parallel lines 350 feet (107 meters) apart. The survey encompassed an area of 36 square miles (93 square kilometers) and included the city of Ames, Iowa, and the Iowa State University. The results are reported as exposure rates at 1 meter above ground level (inferred from the aerial data) in the form of a gamma radiation contour map. Typical background exposure rates were found to vary from 7 to 9 microroentgens per hour ({mu}R/h). No anomalous radiation levels were detected at the Ames Laboratory. However, one anomalous radiation source was detected at an industrial storage yard in the city of Ames. In support of the aerial survey, ground-based exposure rate and soil sample measurements were obtained at several sites within the survey perimeter. The results of the aerial and ground-based measurements were found to agree within the expected uncertainty of {+-}15%.

Maurer, R.J.

1993-04-01T23:59:59.000Z

129

Analysis Using Aerial Photography and Ground Survey Data " (Watershed  

E-Print Network (OSTI)

As you are aware, the Watershed Analysis study which we are conducting will require additional time for completion. We are submitting this interim report on the project for your review and comment. The report is intended to: i. 2. Describe the status of the project and projected timeline for completion; Present our conceptual approach to watershed analysis in the context of cumulative effects; 3. Describe the past use of remote sensing for stream, riparian, and watershed studies and some critical issues which must be addressed in any watershed or stream analysis system; 4. Describe our study methods; 5. Present a preliminary analysis of changes in stream habitat in Taneum creek as determined from physical stream surveys conducted for this project and historical stream survey data. Since the aerial photograph analysis is not completed, we do not believe that a

Dave Somers; Jeanette Smith; Robert Wissmar; Nancy Sturnham Dnr; Tim Beechie; Dave Somers; Jeanette Smith; Robert Wissmar

1991-01-01T23:59:59.000Z

130

Cost Minimization in Power System Measurement Placement  

E-Print Network (OSTI)

, EMS: energy management system, PE: protection engineer, SC: substation control, IS: integrated system of substation automation systems, as reported in the March/April 2003 issue of IEEE Power & Energy Magazine fully automated while 1540-7977/04/$20.00©2004 IEEE figure 1. Layout of the typical substation equipment

Kezunovic, Mladen

131

Measuring advances in HVAC distribution system designs  

Science Conference Proceedings (OSTI)

Substantial commercial building energy savings have been achieved by improving the performance of the HVAC distribution system. The energy savings result from distribution system design improvements, advanced control capabilities, and use of variable-speed motors. Yet, much of the commercial building stock remains equipped with inefficient systems. Contributing to this is the absence of a definition for distribution system efficiency as well as the analysis methods for quantifying performance. This research investigates the application of performance indices to assess design advancements in commercial building thermal distribution systems. The index definitions are based on a first and second law of thermodynamics analysis of the system. The second law or availability analysis enables the determination of the true efficiency of the system. Availability analysis is a convenient way to make system efficiency comparisons since performance is evaluated relative to an ideal process. A TRNSYS simulation model is developed to analyze the performance of two distribution system types, a constant air volume system and a variable air volume system, that serve one floor of a large office building. Performance indices are calculated using the simulation results to compare the performance of the two systems types in several locations. Changes in index values are compared to changes in plant energy, costs, and carbon emissions to explore the ability of the indices to estimate these quantities.

Franconi, Ellen

1998-07-01T23:59:59.000Z

132

Measuring Advances in HVAC Distribution System Design  

SciTech Connect

Substantial commercial building energy savings have been achieved by improving the performance of the HV AC distribution system. The energy savings result from distribution system design improvements, advanced control capabilities, and use of variable-speed motors. Yet, much of the commercial building stock remains equipped with inefficient systems. Contributing to this is the absence of a definition for distribution system efficiency as well as the analysis methods for quantifying performance. This research investigates the application of performance indices to assess design advancements in commercial building thermal distribution systems. The index definitions are based on a first and second law of thermodynamics analysis of the system. The second law or availability analysis enables the determination of the true efficiency of the system. Availability analysis is a convenient way to make system efficiency comparisons since performance is evaluated relative to an ideal process. A TRNSYS simulation model is developed to analyze the performance of two distribution system types, a constant air volume system and a variable air volume system, that serve one floor of a large office building. Performance indices are calculated using the simulation results to compare the performance of the two systems types in several locations. Changes in index values are compared to changes in plant energy, costs, and carbon emissions to explore the ability of the indices to estimate these quantities.

Franconi, E.

1998-05-01T23:59:59.000Z

133

An Aerial Radiological Survey of Selected Areas of Area 18 - Nevada Test Site  

Science Conference Proceedings (OSTI)

As part of the proficiency training for the Radiological Mapping mission of the Aerial Measuring System (AMS), a survey team from the Remote Sensing Laboratory-Nellis (RSL-Nellis) conducted an aerial radiological survey of selected areas of Area 18 of the Nevada Test Site (NTS) for the purpose of mapping man-made radiation deposited as a result of the Johnnie Boy and Little Feller I tests. The survey area centered over the Johnnie Boy ground zero but also included the ground zero and deposition area of the Little Feller I test, approximately 7,000 feet (2133 meters) southeast of the Johnnie Boy site. The survey was conducted in one flight. The completed survey covered a total of 4.0 square miles. The flight lines (with the turns) over the surveyed areas are presented in Figure 1. One 2.5-hour-long flight was performed at an altitude of 100 ft above ground level (AGL) with 200 foot flight-line spacing. A test-line flight was conducted near the Desert Rock Airstrip to ensure quality control of the data. The test line is not shown in Figure 1. However, Figure 1 does include the flight lines for a ''perimeter'' flight. The path traced by the helicopter flying over distinct roads within the survey area can be used to overlay the survey data on a base map or image. The flight survey lines were flown in an east-west orientation perpendicular to the deposition patterns for both sites. This technique provides better spatial resolution when contouring the data. The data were collected by the AMS data acquisition system (REDAR V) using an array of twelve 2-inch x 4-inch x 16-inch sodium iodide (NaI) detectors flown on-board a twin-engine Bell 412 helicopter. Data, in the form of gamma energy spectra, were collected every second over the course of the survey and were geo-referenced using a differential Global Positioning System. Spectral data allows the system to distinguish between ordinary fluctuations in natural background radiation levels and the signature produced by man-made radioisotopes. Spectral data can also identify specific radioactive isotopes. Based on the results of the RSL NTS 1994 surveys, this area was chosen for a resurvey to improve the spatial resolution of the reported depositions for the Johnnie Boy and Little Feller I events. In addition, the survey was expected to confirm the absence of detectable concentrations of Americium-241 (Am-241) at the Johnnie Boy site and attempt to confirm the presence of Uranium-235 (U-235).

Craig Lyons

2009-07-31T23:59:59.000Z

134

An Aerial Radiological Survey of Selected Areas of the City of North Las Vegas  

SciTech Connect

As part of the proficiency training for the Radiological Mapping mission of the Aerial Measuring System (AMS), a survey team from the Remote Sensing Laboratory-Nellis (RSL-Nellis) conducted an aerial radiological survey of selected areas of the city of North Las Vegas for the purpose of mapping natural radiation background and locating any man-made radioactive sources. Survey areas were selected in collaboration with the City Manager's office and included four separate areas: (1) Las Vegas Motor Speedway (10.6 square miles); (2) North Las Vegas Downtown Area (9.2 square miles); (3) I-15 Industrial Corridor (7.4 square miles); and (4) Future site of University of Nevada Las Vegas campus (17.4 square miles). The survey was conducted in three phases: Phase 1 on December 11-12, 2007 (Areas 1 and 2), Phase 2 on February 28, 2008 (Area 3), and Phase 3 on March 19, 2008 (Area 4). The total completed survey covered a total of 44.6 square miles. The flight lines (without the turns) over the surveyed areas are presented in Figures 1, 2, 3, and 4. A total of eight 2.5-hour-long flights were performed at an altitude of 150 ft above ground level (AGL) with 300 feet of flight-line spacing. Water line and test line flights were conducted over the Lake Mead and Government Wash areas to ensure quality control of the data. The data were collected by the AMS data acquisition system (REDAR V) using an array of twelve 2-inch x 4-inch x 16-inch sodium iodide (NaI) detectors flown on-board a twin-engine Bell 412 helicopter. Data, in the form of gamma energy spectra, were collected continually (every second) over the course of the survey and were geo-referenced using a differential Global Positioning System. Collection of spectral data allows the system to distinguish between ordinary fluctuations in natural background radiation levels and the signature produced by man-made radioisotopes. Spectral data can also be used to identify specific radioactive isotopes. As a courtesy service, with the approval of the U.S. Department of Energy, National Nuclear Security Administration, Nevada Site Office, RSL-Nellis is providing this summary to the office of the Mayor of the City of North Las Vegas along with the gross-count-based exposure rate and man-made count contour maps and GIS shape files in electronic format on a compact disk.

Piotr Wasiolek

2008-06-01T23:59:59.000Z

135

MSSE | Measurement Science and Systems Engineering | ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

Supporting Organizations Supporting Organizations Biosciences Division Energy and Transportation Science Division Electrical and Electronics Systems Research Division Building Technologies Program Sustainable Transportation Program Clean Energy Home | Science & Discovery | Clean Energy | Supporting Organizations | Electrical and Electronics Systems Research Division SHARE Electrical and Electronics Systems Research Division The Electrical and Electronics Systems Research Division (EESR) Division at the Oak Ridge National Laboratory (ORNL) performs applied research and development in nationally important areas of energy and security. The mission of EESR is to provide pathways for the translation of basic science to engineering applications. This is accomplished through the creation and

136

Measuring Advances in HVAC Distribution System Design  

E-Print Network (OSTI)

of this "thermal mixing", the heating and cooling loadsyear) Cooling Plant Heating Plant Fans Total Thermal Tobllthermal distribution system includes the components that carry the heating and cooling

Franconi, E.

2011-01-01T23:59:59.000Z

137

Measuring Advances in HVAC Distribution System Design  

E-Print Network (OSTI)

provide building space conditioning. In an all-air system,process that provides space conditioning to the buildingIt indicates building space conditioning requirements. In

Franconi, E.

2011-01-01T23:59:59.000Z

138

A new magnetic field integral measurement system  

NLE Websites -- All DOE Office Websites (Extended Search)

and the Default. The Default copy is read only. Each copy contains, among others, the motor velocities, accelerations, voltage amplification 6 ANLAPSTB-49 and system...

139

Concerning Measurement of Gravitomagnetism in Electromagnetic Systems  

E-Print Network (OSTI)

Measurement of gravitomagnetic field is of fundamental importance as a test of general relativity. Here we present a new theoretical project for performing such a measurement based on detection of the electric field arising from the interplay between the gravitomagnetic and magnetic fields in the stationary axial-symmetric gravitational field of a slowly rotating massive body. Finally it is shown that precise magnetometers based on superconducting quantum interferometers could not be designed for measurement of the gravitomagnetically induced magnetic field in the cavity of a charged capacitor since they measure the circulation of a vector potential of electromagnetic field, i.e., an invariant quantity including the sum of electric and magnetic fields, and the general-relativistic magnetic part will be totally cancelled by the electric one which is in good agreement with the experimental results.

B. J. Ahmedov; N. I. Rakhmatov

2006-08-07T23:59:59.000Z

140

Calibration Accuracy Of Aerial Multispectral Reflectance Images And Estimation Of Error Sources  

E-Print Network (OSTI)

: We have performed a systematic study of the calibration accuracy of multispectral aerial reflectance images. The study is part of the improvement of change detection for aerial and satellite multispectral images. It is based on (a) a multitemporal image data set from the multispectral airborne scanner Daedalus AADS 1268 and (b) simultaneously made ground based hyperspectral reflectance measurements. Reflectance images were obtained from the raw images by processing with the program package SENSAT-5, using standard urban atmospheres in the MODTRAN code. The systematic uncertainty of the resulting reflectance spectra is mainly due to the uncertainty in the atmospheric parameters. It can be reduced by fitting the Daedalus spectra to ground truth hyperspectral reflectance measurements of selected surfaces. The resulting uncertainty oe ae =ae of the reflectance ae is estimated to be 11.0 % on average. KEY WORDS: Remote sensing, Reflectance, Error sources 1 INTRODUCTION Remotely sensed ...

Andre Rothkirch; Martin Kollewe; Hartwig Spitzer

1998-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "aerial measuring system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Evaluate error sources and uncertainty in large scale measurement systems  

Science Conference Proceedings (OSTI)

Modern manufacturing technologies place increasingly higher demands on industrial measurement systems. Over the last decade there have been rapid developments in 3D measurement systems, with the primary requirement coming from industries such as automotives, ... Keywords: Best fit methods, Laser scanner, Measurement errors, Uncertainty

Qing Wang; Nick Zissler; Roger Holden

2013-02-01T23:59:59.000Z

142

Pumping System Measurements To Estimate Energy Savings: Why and How  

E-Print Network (OSTI)

Measuring performance parameters (flow rate, pressures, and power) for existing systems is essential to understanding how both the pump(s) and system are actually performing. Examples of reasons why actual measurements are critical and practical means of getting and using the measured data to estimate savings potential using DOE tools are discussed.

Casada, D.

2007-01-01T23:59:59.000Z

143

Performance Evaluation of Phasor Measurement Systems  

Science Conference Proceedings (OSTI)

After two decades of phasor network deployment, phasor measurements are now available at many major substations and power plants. The North American SynchroPhasor Initiative (NASPI), supported by both the US Department of Energy and the North American Electricity Reliability Council (NERC), provides a forum to facilitate the efforts in phasor technology in North America. Phasor applications have been explored and some are in today’s utility practice. IEEE C37.118 Standard is a milestone in standardizing phasor measurements and defining performance requirements. To comply with IEEE C37.118 and to better understand the impact of phasor quality on applications, the NASPI Performance and Standards Task Team (PSTT) initiated and accomplished the development of two important documents to address characterization of PMUs and instrumentation channels, which leverage prior work (esp. in WECC) and international experience. This paper summarizes the accomplished PSTT work and presents the methods for phasor measurement evaluation.

Huang, Zhenyu; Kasztenny, Bogdan; Madani, Vahid; Martin, Kenneth E.; Meliopoulos, Sakis; Novosel, Damir; Stenbakken, Jerry

2008-07-20T23:59:59.000Z

144

Title: Autonomous Aerial Sensors for Wind Power Meteorology- A Pre-Project  

E-Print Network (OSTI)

Abstract (max. 2000 char.): Autonomous Aerial Sensors, i.e. meteorological sensors mounted on Unmanned Aerial Systems UAS, can characterise the atmospheric flow in and around wind farms. We instrumented three planes, a helicopter and a lighter-than-air LTA system to fly one week together in a well-instrumented wind farm, partly with nanosynchronised sensors (time stamped with about 100 ns global accuracy). Between bankruptcy of a partner, denied overflight rights at the main test location, denied Civil Aviation Authorities permits at the alternative location, stolen planes, and crashed UAS we managed to collect data at a wind farm in Lolland and on an atmospheric campaign in France. Planning of an offshore campaign using the developed techniques is underway. ISSN 0106-2840 ISBN 978-87-550-3945-2 Contract no.:

Gregor Giebel (ed; Uwe Schmidt Paulsen; Jens Bange; La Cour-harbo; Joachim Reuder; Stephanie Mayer; Aline Van; Der Kroonenberg; John Mølgaard; Gregor Giebel; Uwe Schmidt Paulsen; Jens Bange; Anders La Cour-harbo; Joachim Reuder; Stephanie Mayer

2012-01-01T23:59:59.000Z

145

Optical Measurement of Bubbles: System Design and Application  

Science Conference Proceedings (OSTI)

Affordable high quality charge-coupled device (CCD) video cameras and image processing software are powerful tools for bubble measurements. Because of the wide variation between bubble populations, different bubble measurement systems (BMSs) are ...

Ira Leifer; Gerrit de Leeuw; Leo H. Cohen

2003-09-01T23:59:59.000Z

146

Tracking Laser Coordinate Measurement System Application for Turbine Outage Activities  

Science Conference Proceedings (OSTI)

Tracking Laser Coordinate Measurement System Application for Turbine Outage Activities provides nuclear and fossil personnel with a faster and more accurate method for performing turbine measurement activities during an outage.

2007-12-21T23:59:59.000Z

147

Securing Wide Area Measurement Systems | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

measurement system (WAMS) security conducted by Pacific Northwest National Laboratory (PNNL) as a project funded by the National SCADA Test Bed Program in cooperation with the...

148

Information systems strategy: reconceptualization, measurement, and implications  

Science Conference Proceedings (OSTI)

Information systems strategy is of central importance to IS practice and research. Our extensive review of the literature suggests that the concept of IS strategy is a term that is used readily; however, it is also a term that is not fully understood. ... Keywords: IS strategic alignment, IS strategy, competitive advantage, strategic IS planning

Daniel Q. Chen; Martin Mocker; David S. Preston; Alexander Teubner

2010-06-01T23:59:59.000Z

149

Method of measuring heat influx of a cryogenic transfer system  

DOE Patents (OSTI)

A method is provided for measuring the heat influx of a cryogenic transfer system. A gaseous phase of the cryogen used during normal operation of the system is passed through the system. The gaseous cryogen at the inlet to the system is tempered to duplicate the normal operating temperature of the system inlet. The temperature and mass flow rate of the gaseous cryogen is measured at the outlet of the system, and the heat capacity of the cryogen is determined. The heat influx of the system is then determined from known thermodynamic relationships.

Niemann, Ralph C. (Downers Grove, IL); Zelipsky, Steven A. (Tinley Park, IL); Rezmer, Ronald R. (Lisle, IL); Smelser, Peter (Bruner, MO)

1981-01-01T23:59:59.000Z

150

Comparative Performance of Two Reversing Bowen Ratio Measurement Systems  

Science Conference Proceedings (OSTI)

This paper reports on the results of a comparative experiment between two Bowen ratio measurement systems conducted at the Petawawa National Forestry Institute, Chalk River, Ontario, in 1985. Both systems interchange the positions of the ...

J. H. McCaughey; D. W. Mullins; M. Publicover

1987-12-01T23:59:59.000Z

151

Measured Off-Grid LED Lighting System Performance  

E-Print Network (OSTI)

Market in Western Kenya: LED Alternatives and Consumerfor Emerging Off-grid White-LED Illumination Systems forReport #4 Measured Off-Grid LED Lighting System Performance

Granderson, Jessica

2009-01-01T23:59:59.000Z

152

EOSO ENERGY MEASUREMENTS GROUP THE REMOT SENSIN EG&G SURVEY REPORT LABORATO  

Office of Legacy Management (LM)

Oe. 1-G Oe. 1-G l/ZL=q n EOSO ENERGY MEASUREMENTS GROUP THE REMOT SENSIN EG&G SURVEY REPORT LABORATO EP-F-002 Of THE UNITED STATES DECEMBER 1981 DEPARTMENT OF ENERGY AN AERIAL RADIOLOGICAL SURVEY OF THE AREA SURROUNDING THE BUREAU OF MINES SITE ALBANY, OREGON DATE OF SURVEY: FEBRUARY 1980 AN AERIAL RADIOLOGICAL SURVEY OF THE BUREAU OF MINES SITE ALBANY, OREGON I I I . t I 1 I I I I I I I t PROJECT SCIENTIST: E. FEIMSTER EG&G, INC. LAS VEGAS, NEVADA 1.0 SUMMARY OF RESULTS An aerial radiological measuring system was used to survey areas surrounding the Bureau of Mines Site near Albany, Oregon in February 1980. The survey was conducted for the U.S. Department of Energy's Office of Operational Safety by the Department's Remote Sensing Laboratory of Las

153

Application of Phasor Measurement Units for Controlled System Separation  

Science Conference Proceedings (OSTI)

Controlled system separation is considered the final line of defense to save a power transmission system against a catastrophic blackout under severe disturbances8212for example, cascading failures. In a controlled manner, the system is separated into sustainable electrical islands, which can be resynchronized later to restore the system. This technical report gives an overview of controlled system separation and then proposes a practical controlled system separation scheme utilizing phasor measurement u...

2009-11-25T23:59:59.000Z

154

Optical double-slit particle measuring system  

DOE Patents (OSTI)

A method for in situ measurement of particle size is described. The size information is obtained by scanning an image of the particle across a double-slit mask and observing the transmitted light. This method is useful when the particle size of primary interest is 3..mu..m and larger. The technique is well suited to applications in which the particles are non-spherical and have unknown refractive index. It is particularly well suited to high temperature environments in which the particle incandescence provides the light source.

Tichenor, D.A.; Wang, J.C.F.; Hencken, K.R.

1982-03-25T23:59:59.000Z

155

Concepts for the Measurements Subsystems of the Third Generation Attributes Measurement System  

Science Conference Proceedings (OSTI)

Abstract The 3rd Generation Attribute Measurement System project has been tasked by the U.S. National Nuclear Security Administration Office of Nuclear Verification to develop the next generation of attribute measurement system for potential verification applications. The primary improvements of this effort, compared to previous attribute measurement systems, are to address authentication and certification concerns throughout the design and development process and to conduct attribute measurements for highly enriched uranium and high explosives in addition to plutonium. This paper will present attribute measurement techniques under consideration by the project.

Warren, Glen A.; Archer, Daniel E.; Cunningham, Mark; McConchie, Seth; Thron, Jonathon

2012-07-20T23:59:59.000Z

156

Aerial Thermal Infrared Mapping Of The Waimangu-Waiotapu Geothermal...  

Open Energy Info (EERE)

Aerial Thermal Infrared Mapping Of The Waimangu-Waiotapu Geothermal Region, New Zealand - M A Mongillo, Geothermics, 23(5-6), 1994, Pp 511-526 Jump to: navigation, search...

157

Natural language processing for unmanned aerial vehicle guidance interfaces  

E-Print Network (OSTI)

In this thesis, the opportunities and challenges involved in applying natural language processing techniques to the control of unmanned aerial vehicles (UAVs) are addressed. The problem of controlling an unmanned aircraft ...

Craparo, Emily M. (Emily Marie), 1980-

2004-01-01T23:59:59.000Z

158

Some field observations on OSI aerial photography scales  

SciTech Connect

The US, UK and USSR are attempting to negotiate a Comprehensive Test Ban Treaty (CTBT) in Geneva. One of the verification procedures presently proposed provides for the possibility of conducting an On-Site Inspection (OSI) if a violation is suspected. According to the terms of the draft treaty, the OSI team would be provided with either (1) stereoscopic aerial photographs with a scale of 1:2,500, or equivalent topographic maps (US version) or (2) a large scale aerial photograph (USSR version). In order to gain a better understanding of the aerial photograph issue, EG and G was asked to take stereoscopic aerial photographs of two areas at the NTS at four different scales, 1:2,500, 1:5,000, 1:10,000 and 1:25,000. The purpose of this paper is to present some field observations on the use for OSI type purposes of these different scale photos.

Geil, R.

1981-03-16T23:59:59.000Z

159

The Influence of Atmospheric Stability on Wind Drift from Ultra-Low-volume Aerial Forest Spray Applications  

Science Conference Proceedings (OSTI)

Measurements of drift cloud mass from 11 cases selected from a study of wind-borne droplet drift from ultra low-volume aerial spray applications over northern Ontario forests are presented as a function of atmospheric stability. Six swaths were ...

R. S. Crabbe; M. McCooeye; R. E. Mickle

1994-04-01T23:59:59.000Z

160

Borehole measurements while drilling: systems and activities  

DOE Green Energy (OSTI)

Attention is focused on all potential methods of drilling safer and cheaper. Real time data from the bit offers the greatest potential for meeting these needs. As a result, numerous companies are actively competing to develop this oil field service capability and to capture a world wide market. Two basic categories of service are sought. The first, and highest priority, is drilling safety and efficiency; the second is real-time logging, or formation evaluation. This study addresses the types of systems being studied, describes company activity and projects underway, estimates the practical potential for success and considers the commercial market for successful systems. The need for research data on bit hydraulics and drill string dynamics, special deep, hot or sour gas situations and other relatively unusual requirements may become exceptions to the general conclusions that are drawn. Historical and present activity are documented through presenting the results of extensive literature and patent researches. A breakdown is presented of activity by company along with names and addresses for further contact.

McDonald, W.J.

1977-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "aerial measuring system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Crustal motion in Indonesia from Global Positioning System measurements  

E-Print Network (OSTI)

Crustal motion in Indonesia from Global Positioning System measurements Y. Bock,1 L. Prawirodirdjo: crustal motion, Indonesia tectonics, GPS, current plate motions, Southeast Asia Citation: Bock, Y., L, Crustal motion in Indonesia from Global Positioning System measurements, J. Geophys. Res., 108(B8), 2367

McCaffrey, Robert

162

Results for the LISA Phase Measurement System Project  

E-Print Network (OSTI)

This article is the write up of a presentation made at the 5th International LISA Symposium. It reviews some of the more topical results of an ESA funded study into the LISA phase measurement system. This system is responsible for measuring the phase of the heterodyne signal caused by the interference of the laser beams between the local and far spacecraft.

Summers, D; Summers, David; Hoyland, David

2004-01-01T23:59:59.000Z

163

Measuring information systems service quality: SERVQUAL from the other side  

Science Conference Proceedings (OSTI)

There has been much debate as of late over the use of the SERVQUAL instrument to measure Information Systems service quality. Detractors argue that the difference score leads to unreliable measures and that the dimensionality and validity is erratic. ... Keywords: SERVQUAL, measurement, service quality, user expectations

James J. Jiang; Gary Klein; Christopher L. Carr

2002-06-01T23:59:59.000Z

164

Assessment of Multi-Point Ammonia Measurement Systems  

Science Conference Proceedings (OSTI)

This report summarizes development and testing of in-duct gas sampling probes and a tunable diode laser (TDL) spectroscopic measurement system to determine the concentration of gaseous ammonia (NH3) in coal-fired power plant flue gases. Unlike the much slower conventional wet chemical measurement method, the duct probe and TDL NH3 measurement systems developed in this project enable plant operators to know ammonia slip concentrations in near real-time, allowing them to make appropriate adjustments.

2004-12-08T23:59:59.000Z

165

Outdoor airflow into HVAC systems: An evaluation of measurement  

NLE Websites -- All DOE Office Websites (Extended Search)

Outdoor airflow into HVAC systems: An evaluation of measurement Outdoor airflow into HVAC systems: An evaluation of measurement technologies Title Outdoor airflow into HVAC systems: An evaluation of measurement technologies Publication Type Report LBNL Report Number LBNL-53834 Year of Publication 2003 Authors Fisk, William J., David Faulkner, Douglas P. Sullivan, and William W. Delp Abstract During the last few years, new technologies have been introduced for measuring the flow rates of outdoor air (OA) into HVAC systems; however, an evaluation of these measurement technologies has not previously been published. This document describes a test system and protocols developed for controlled evaluation of these measurement technologies. The results of tests of three measurement technologies are also summarized. The test system and protocol were judged practical and very useful. The test results indicate that one measurement technology can measure OA flow rates with errors of 20% or less without a field-based calibration, as long as the OA velocities are sufficient to provide an accurately measurable pressure signal. The test results for a second measurement technology are similar; however, a difficult field-based calibration relating the OA flow rate with the pressure signal would be required to reduce errors below approximately 30%. The errors in OA flow rates measured with the third measurement technology, that uses six electronic airspeed sensors downstream of the OA inlet louver, exceeded 100%; however, these errors could be substantially reduced through a difficult field based calibration. The effects of wind on the accuracy of these measurement technologies still needs to be evaluated

166

Synchronized Phasor Measurements for the Western Systems Coordinating Council (WSCC)  

Science Conference Proceedings (OSTI)

To further enhance real-time power system control throughout the Western Systems Coordinating Council (WSCC), a North American Electric Reliability Council (NERC) region, EPRI, and several WSCC member utilities have been working to implement a more effective system control scheme. This report documents this effort, which uses phasor measurement technology.

1997-06-02T23:59:59.000Z

167

An aerial radiological survey of the Fernald Environmental Management Project and surrounding area, Fernald, Ohio  

SciTech Connect

An aerial radiological survey was conducted from May 17--22, 1994, over a 36 square mile (93 square kilometer) area centered on the Fernald Environmental Management Project located in Fernald, Ohio. The purpose of the survey was to detect anomalous gamma radiation in the environment surrounding the plant. The survey was conducted at a nominal altitude of 150 feet (46 meters) with a line spacing of 250 feet (76 meters). A contour map of the terrestrial gamma exposure rate extrapolated to 1 meter (3.3 feet) above ground was prepared and overlaid on an aerial photograph of the area. Analysis of the data for man made sources showed five sites within the boundaries of the Fernald Environmental Management Project having elevated readings. The exposure rates outside the plant boundary were typical of naturally occurring background radiation. Soil samples and pressurized ion chamber measurements were obtained at four locations within the survey boundaries to supplement the aerial data. It was concluded that although the radionuclides identified in the high-exposure-rate areas are naturally occurring, the levels encountered are greatly enhanced due to industrial activities at the plant.

Phoenix, K.A.

1997-04-01T23:59:59.000Z

168

Communication infrastructure planning for wide area measurement systems in power systems  

Science Conference Proceedings (OSTI)

Smart grid denotes integration of all elements connected to a power grid with a communication infrastructure. In modern power systems, wide area measurement systems WAMS are such systems that use communication infrastructure to share their data and information. ...

Mohammad Shahraeini; Mohammad Hossein Javidi; Mohammad Sadegh Ghazizadeh

2013-06-01T23:59:59.000Z

169

BPA experience in the direct measurement of power system dynamics  

Science Conference Proceedings (OSTI)

Sustained growth of a large power system tends to make the model-based planning of system expansions and operations increasingly difficult. This paper presents a BPA perspective on procedures for extracting supplemental information for the power system itself. These procedures involve disturbance analysis, ambient measurements, and direct tests. Results shown for the western U.S. power system include a response model derived from a recent test energization of BPA's 1400 MW dynamic brake. The model construction illustrated combined use of Fourier analysis, Prony analysis, and optimal fitting to measured frequency response.

Hauer, J.F. (Bonneville Power Administration, Portland, OR (United States))

1990-01-01T23:59:59.000Z

170

An Accuracy Goal for a Comprehensive Satellite Wind Measuring System  

Science Conference Proceedings (OSTI)

Variational analysis with a geostrophic constraint is used to estimate a critical accuracy for a satellite lidar wind measuring system. This accuracy is such that the combination of satellite winds with satellite temperatures can produce analyses ...

Norman A. Phillips

1983-01-01T23:59:59.000Z

171

Secure transfer of measurement data in open systems  

Science Conference Proceedings (OSTI)

The liberalization of different markets which are liable to legal metrology accelerates the need for transferring measuring data over open networks. This increases the involvement of communication technology in measuring systems and raises new security ... Keywords: Digital signatures, Legal metrology, SELMA, Secure data transfer

Luigi Lo Iacono; Christoph Ruland; Norbert Zisky

2006-01-01T23:59:59.000Z

172

The Meteorological Measurement System on the NASA ER-2 Aircraft  

Science Conference Proceedings (OSTI)

A Meteorological Measurement System (MMS) was designed and installed on one of the NASA high-altitude ER-2 aircraft (NASA 706). The MMS provides in situ measurements of free-stream pressure (±0.3 mb), temperature (±0.3°C), and wind vector (±1 m s?...

Stan G. Scott; T. Paul Bui; K. Roland Chan; Stuart W. Bowen

1990-08-01T23:59:59.000Z

173

Review of Prior U.S. Attribute Measurement Systems  

SciTech Connect

Attribute Measurement Systems have been developed and demonstrated several times in the United States over the last decade or so; under the Trilateral Initiative (1996-2002), FMTTD (Fissile Material Transparency Technology Demonstration, 2000), and NG-AMS (Next Generation Attribute Measurement System, 2005-2008). Each Attribute Measurement System has contributed to the growing body of knowledge regarding the use of such systems in warhead dismantlement and other Arms Control scenarios. The Trilateral Initiative, besides developing prototype hardware/software, introduced the topic to the international community. The 'trilateral' parties included the United States, the Russian Federation, and the International Atomic Energy Agency (IAEA). With the participation of a Russian delegation, the FMTTD demonstrated that measurements behind an information barrier are feasible while meeting host party security requirements. The NG-AMS system explored the consequences of maximizing the use of Commercial off the Shelf (COTS) equipment, which made construction easier, but authentication harder. The 3rd Generation Attribute Measurement System (3G-AMS) will further the scope of previous systems by including additional attributes and more rigor in authentication.

White, G K

2012-07-06T23:59:59.000Z

174

Towards a multi-dimensional project Performance Measurement System  

Science Conference Proceedings (OSTI)

This paper discusses the difficulty of controlling a complex project caused by the great number of performance indicators. The problem studied is how to allow project managers to better control the performance of their projects. From a literature review ... Keywords: Decision Support Systems, Multiple criteria analysis, Performance Measurement System, Project management, Project performance

Matthieu Lauras; Guillaume Marques; Didier Gourc

2010-01-01T23:59:59.000Z

175

: Measurement of Battery Capacity in Mobile Robot Systems  

E-Print Network (OSTI)

RoBM2 : Measurement of Battery Capacity in Mobile Robot Systems Nestor Lucas1 , Cosmin Codrea1. With battery driven robot systems performing very sophisti- cated tasks, increasing demands on the power supply play a critical role. Operation breakdowns are unpredictable unless the state of the battery is known

Breu, Ruth

176

Pilot aerial infrared roof top survey. Final report  

SciTech Connect

A summary is presented of a pilot aerial infrared roof top study conducted by the Minnesota Energy Agency. Infrared surveys of 27 Minnesota cities were conducted during the fall and winter of the 1976-1977 heating season. In addition, conventional daytime color photographs were taken of several cities. Film processing was done by the Environmental Protection Agency. The University of Minnesota conducted ground tests to verify the aerial infrared imagery. Thermograph dissemination centers were established in each city and training seminars and materials were prepared and delivered to dissemination center staff. A survey of homeowners who viewed their thermograph at a dissemination center were used to determine the energy savings resulting from the program. An Aerial Infrared Program Users Manual was prepared by the Energy Agency and the Remote Sensing Institute of Brookings, South Dakota.

1979-10-15T23:59:59.000Z

177

Surface moisture measurement system electromagnetic induction probe calibration technique  

SciTech Connect

The Surface Moisture Measurement System (SMMS) is designed to measure the moisture concentration near the surfaces of the wastes located in the Hanford Site tank farms. This document describes a calibration methodology to demonstrate that the Electromagnetic Induction (EMI) moisture probe meets relevant requirements in the `Design Requirements Document (DRD) for the Surface Moisture Measurement System.` The primary purpose of the experimental tests described in this methodology is to make possible interpretation of EMI in-tank surface probe data to estimate the surface moisture.

Crowe, R.D., Westinghouse Hanford

1996-07-08T23:59:59.000Z

178

The new magnetic measurement system at the Advanced Photon Source.  

SciTech Connect

A new system for precise measurements of the field integrals and multipole components of the APS magnetic insertion devices is described. A stretched coil is used to measure magnetic field characteristics. The hardware includes a number of servomotors to move (translate or rotate) the coil and a fast data acquisition board to measure the coil signal. A PC under Linux is used as a control workstation. The user interface is written as a Tcl/tk script; the hardware is accessed from the script through a shared C-library. A description of the hardware system and the control program is given.

Eidelman, Y.; Deriy, B.; Makarov, O.; Vasserman, I.

2002-03-15T23:59:59.000Z

179

The new Magnetic Measurement System at the Advanced Photon Source  

E-Print Network (OSTI)

A new system for precise measurements of the field integrals and multipole components of the APS magnetic insertion devices is described. A stretched coil is used to measure magnetic field characteristics. The hardware includes a number of servomotors to move (translate or rotate) the coil and a fast data acquisition board to measure the coil signal. A PC under Linux is used as a control workstation. The user interface is written as a Tcl/tk script. The hardware is accessed from the script through a shared C-library. A description of the hardware system and the control program is given.

Eidelman, Y; Makarov, O P; Vasserman, I B; Eidelman, Yu.

2001-01-01T23:59:59.000Z

180

Dephasing and collapse in continuous measurement of a single system  

E-Print Network (OSTI)

We show that long standing debates on the collapse and the role of the observer in quantum mechanics can be resolved experimentally via a nondistructive continuous monitoring of a single quantum system. An example of such a system, coupled with the point-contact detector is presented. The detailed quantum mechanical analysis of the entire system (including the detector) shows that under certain conditions the measurement collapse would generate distinctive effects in the detector behavior, which can be experimentally investigated.

Gurvitz, S A

1998-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "aerial measuring system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Dephasing and collapse in continuous measurement of a single system  

E-Print Network (OSTI)

We show that long standing debates on the collapse and the role of the observer in quantum mechanics can be resolved experimentally via a nondistructive continuous monitoring of a single quantum system. An example of such a system, coupled with the point-contact detector is presented. The detailed quantum mechanical analysis of the entire system (including the detector) shows that under certain conditions the measurement collapse would generate distinctive effects in the detector behavior, which can be experimentally investigated.

S. A. Gurvitz

1998-08-26T23:59:59.000Z

182

Precise Measurement of Laser Power using an Optomechanical System  

E-Print Network (OSTI)

This paper shows a novel method to precisely measure the laser power using an optomechanical system. By measuring a mirror displacement caused by the reflection of an amplitude modulated laser beam, the number of photons in the incident continuous-wave laser can be precisely measured. We have demonstrated this principle by means of a prototype experiment uses a suspended 25 mg mirror as an mechanical oscillator coupled with the radiation pressure and a Michelson interferometer as the displacement sensor. A measurement of the laser power with an uncertainty of less than one percent (1 sigma) is achievable.

Agatsuma, Kazuhiro; Ballmer, Stefan; DeSalvo, Giulia; Sakata, Shihori; Nishida, Erina; Kawamura, Seiji

2013-01-01T23:59:59.000Z

183

Precise Measurement of Laser Power using an Optomechanical System  

E-Print Network (OSTI)

This paper shows a novel method to precisely measure the laser power using an optomechanical system. By measuring a mirror displacement caused by the reflection of an amplitude modulated laser beam, the number of photons in the incident continuous-wave laser can be precisely measured. We have demonstrated this principle by means of a prototype experiment uses a suspended 25 mg mirror as an mechanical oscillator coupled with the radiation pressure and a Michelson interferometer as the displacement sensor. A measurement of the laser power with an uncertainty of less than one percent (1 sigma) is achievable.

Kazuhiro Agatsuma; Daniel Friedrich; Stefan Ballmer; Giulia DeSalvo; Shihori Sakata; Erina Nishida; Seiji Kawamura

2013-09-18T23:59:59.000Z

184

VALIDATION OF A THERMAL CONDUCTIVITY MEASUREMENT SYSTEM FOR FUEL COMPACTS  

SciTech Connect

A high temperature guarded-comparative-longitudinal heat flow measurement system has been built to measure the thermal conductivity of a composite nuclear fuel compact. It is a steady-state measurement device designed to operate over a temperature range of 300 K to 1200 K. No existing apparatus is currently available for obtaining the thermal conductivity of the composite fuel in a non-destructive manner due to the compact’s unique geometry and composite nature. The current system design has been adapted from ASTM E 1225. As a way to simplify the design and operation of the system, it uses a unique radiative heat sink to conduct heat away from the sample column. A finite element analysis was performed on the measurement system to analyze the associated error for various operating conditions. Optimal operational conditions have been discovered through this analysis and results are presented. Several materials have been measured by the system and results are presented for stainless steel 304, inconel 625, and 99.95% pure iron covering a range of thermal conductivities of 10 W/m*K to 70 W/m*K. A comparison of the results has been made to data from existing literature.

Jeff Phillips; Colby Jensen; Changhu Xing; Heng Ban

2011-03-01T23:59:59.000Z

185

An aerial radiological survey of the West Valley Demonstration Project and surrounding area, West Valley, New York  

SciTech Connect

An aerial radiological survey of the West Valley Demonstration Project and the surrounding area was conducted from mid-August through early September 1984 by EG G Energy Measurements, Inc. for the United States Department of Energy. The radiological survey was part of the United States Department of Energy Comprehensive Integrated Remote Sensing (CIRS) program, which provides state-of-the-art remote sensing to support the needs of the various DOE facilities. The survey consisted of airborne measurements of both natural and man-made gamma radiation emanating from the terrestrial surface. These measurements allowed an estimate of the distribution of isotopic concentrations in the area surrounding the project site. Results are reported as isopleths superimposed on aerial photographs of the area. Gamma ray energy spectra are also presented for the net man-made radionuclides. 8 refs., 16 figs., 9 tabs.

Berry, H.A.

1991-09-01T23:59:59.000Z

186

Measured Air Distribution Effectiveness for Residential Mechanical Ventilation Systems  

SciTech Connect

The purpose of ventilation is dilute or remove indoor contaminants that an occupant is exposed to. In a multi-zone environment such as a house, there will be different dilution rates and different source strengths in every zone. Most US homes have central HVAC systems, which tend to mix the air thus the indoor conditions between zones. Different types of ventilation systems will provide different amounts of exposure depending on the effectiveness of their air distribution systems and the location of sources and occupants. This paper will report on field measurements using a unique multi-tracer measurement system that has the capacity to measure not only the flow of outdoor air to each zone, but zone-to-zone transport. The paper will derive seven different metrics for the evaluation of air distribution. Measured data from two homes with different levels of natural infiltration will be used to evaluate these metrics for three different ASHRAE Standard 62.2 compliant ventilation systems. Such information can be used to determine the effectiveness of different systems so that appropriate adjustments can be made in residential ventilation standards such as ASHRAE Standard 62.2.

Sherman, Max; Sherman, Max H.; Walker, Iain S.

2008-05-01T23:59:59.000Z

187

Design and performance of an ammonia measurement system  

E-Print Network (OSTI)

Ammonia emissions from animal feeding operations (AFOs) have recently come under increased scrutiny. The US Environmental Protection Agency (EPA) has come under increased pressure from special interest groups to regulate ammonia. Regulation of ammonia is very difficult because every facility has different manure management practices. Different management practices lead to different emissions for every facility. Researchers have been tasked by industry to find best management practices to reduce emissions. The task cannot be completed without equipment that can efficiently and accurately compare emissions. To complete this task, a measurement system was developed and performance tested to measure ammonia. Performance tests included uncertainty analysis, system response, and adsorption kinetics. A measurement system was designed for measurement of gaseous emissions from ground level area sources (GLAS) in order to sample multiple receptors with a single sensor. This multiplexer may be used in both local and remote measurement systems to increase the sampling rate of gaseous emissions. The increased data collection capacity with the multiplexer allows for nearly three times as many samples to be taken in the same amount of time while using the same protocol for sampling. System response analysis was performed on an ammonia analyzer, a hydrogen sulfide analyzer, and tubing used with flux chamber measurement. System responses were measured and evaluated using transfer functions. The system responses for the analyzers were found to be first order with delay in auto mode. The tubing response was found to be a first order response with delay. Uncertainty analysis was performed on an ammonia sampling and analyzing system. The system included an analyzer, mass flow controllers, calibration gases, and analog outputs. The standard uncertainty was found to be 443 ppb when measuring a 16 ppm ammonia stream with a 20 ppm span. A laboratory study dealing with the adsorption kinetics of ammonia on a flux chamber was performed to determine if adsorption onto the chamber walls was significant. The study found that the adsorption would not significantly change the concentration of the output flow 30 minutes after a clean chamber was exposed to ammonia concentrations for concentrations above 2.5 ppm.

Boriack, Cale Nolan

2005-12-01T23:59:59.000Z

188

Microwave Moisture Measurement System for Hardwood Lumber Drying  

SciTech Connect

The goal of this project was to develop a prototype microwave-based moisture sensor system suitable for the kiln drying of hardwood lumber. The moisture sensors developed are battery powered and are capable of communicating with a host kiln control system via spread spectrum wireless communications. We have developed two designs of the sensors working at 4.5 to 6 GHz with linear response to moisture content (MC) over a range of 6-100%. These sensors allow us to make a swept frequency microwave transmission measurement through a small area of a board. Using the prototype electronics and sensors, we have obtained measurements of MC over the above MC range for red oak and yellow poplar with standard deviations of less than 1.5% MC. We have developed data for board thickness corrections and for temperature corrections for the MC measurement system.

Moschler, William W [University of Tennessee, Knoxville (UTK); Hanson, Gregory R [ORNL

2008-09-01T23:59:59.000Z

189

The influence of animal mobility on the assumption of uniform distances in aerial line transect surveys  

E-Print Network (OSTI)

for estimating animal density from aerial surveys. Analysis of line transect distance data usually relies test evidence for non- uniformity using double-observer distance data from two aerial surveys of five in Queensland. Key words: aerial surveys, double platform distance sampling, independent observers, responsive

Buckland, Steve

190

Aerial Surveys for Marine Mammals in the Northeastern Chukchi Sea: 2009  

E-Print Network (OSTI)

Aerial Surveys for Marine Mammals in the Northeastern Chukchi Sea: 2009 Janet Clarke1, Megan Offshore Monitoring in Drilling Area) aerial surveys for marine mammals were conducted in the northeastern Planning Area during the ice-free season. COMIDA aerial survey objectives include determining

191

http://rcc.its.psu.edu/hpc Low Elevation Aerial Photogrammetry for 3D Reconstructions of  

E-Print Network (OSTI)

-wing aerial photogrammetry. Conducting a topographic survey using laser transits and total stations is time topographic data over large areas. However, in the case of most fixed-wing aerial photographic surveyshttp://rcc.its.psu.edu/hpc Low Elevation Aerial Photogrammetry for 3D Reconstructions

Bjørnstad, Ottar Nordal

192

Proceedings of the Sudden Oak Death Third Science Symposium Six Years of Aerial and Ground Monitoring  

E-Print Network (OSTI)

,3 and Lisa M. Fischer2 Abstract Aerial surveys have been conducted since 2001 to map recent hardwood that causes sudden oak death (SOD). Each year the aerial and ground surveys monitored much of California on private land. Using risk maps combined with aerial survey data, areas where SOD is most likely to become

Standiford, Richard B.

193

Aerial and Ground Surveys for Mapping the Distribution of Phytopthora ramorum  

E-Print Network (OSTI)

345 Aerial and Ground Surveys for Mapping the Distribution of Phytopthora ramorum in California1 Jeffrey A. Mai2 , Walter Mark3 , Lisa Fischer4 , and Amy Jirka5 Key words: aerial surveys, ground surveys of annual aerial surveys to map hardwood mortality in overstory tree species including coast live oak

Standiford, Richard B.

194

Large-Scale Urban Modeling by Combining Ground Level Panoramic and Aerial Imagery  

E-Print Network (OSTI)

from the United States Ge- ographic Survey. One aerial image is shown in Fig. 1(a). Another inherentLarge-Scale Urban Modeling by Combining Ground Level Panoramic and Aerial Imagery Lu Wang, Suya You a high resolution orthorecti- fied aerial image to provide the building footprints. Users draw

Shahabi, Cyrus

195

Employing Active Aerial Acoustics to Increase Detections of the Critically Endangered North Pacific Right Whale  

E-Print Network (OSTI)

, Seattle, WA 98115-6349, USA METHODS Aerial surveys were conducted within the Bering Sea critical habitat" calls recorded from sonobuoys deployed during the 2009 aerial survey. This figure represents flights in the direction of the bearing. Table 1. Aerial survey effort in 2009 including successful sonobuoy deployments

196

Aerial surveys vs hunting statistics to monitor deer density: the example of Anticosti Island, Quebec, Canada  

E-Print Network (OSTI)

Aerial surveys vs hunting statistics to monitor deer density: the example of Anticosti Island, Que., Co^te´, S.D., Gingras, A., Potvin, F. & Huot, J. 2007: Aerial surveys vs hunting statistics-tailed deer densities estimated in 2001 on the basis of an extensive aerial survey of 512 plots, each 3.5 km

Laval, Université

197

Floating data acquisition system for microwave calorimeter measurements on MTX  

SciTech Connect

A microwave calorimeter has been designed for making 140-GHz absorption measurements on the MTX. Measurement of the intensity and spatial distribution of the FEL-generated microwave beam on the inner wall will indicate the absorption characteristics of the plasma when heated with a 140 GHz FEL pulse. The calorimeter works by monitoring changes of temperature in silicon carbide tiles located on the inner wall of the tokamak. Thermistors are used to measure the temperature of each tile. The tiles are located inside the tokamak about 1 cm outside of the limiter radius at machine potential. The success of this measurement depends on our ability to float the data acquisition system near machine potential and isolate it from the rest of the vault ground system. Our data acquisition system has 48 channels of thermistor signal conditioning, a multiplexer and digitizer section, a serial data formatter, and a fiber-optic transmitter to send the data out. Additionally, we bring timing signals to the interface through optical fibers to tell it when to begin measurement, while maintaining isolation. The receiver is an HP 200 series computer with a serial data interface; the computer provides storage and local display for the shot temperature profile. Additionally, the computer provides temporary storage of the data until it can be passed to a shared resource management system for archiving. 2 refs., 6 figs.

Sewall, N.R.; Meassick, S. (Lawrence Livermore National Lab., CA (USA))

1989-09-13T23:59:59.000Z

198

Application of Phosphor Thermometry to a Galvanneal Temperature Measurement System  

Science Conference Proceedings (OSTI)

The Galvanneal Temperature Measurement System (GTMS) was developed for the American Iron and Steel Institute by the Oak Ridge National Laboratory through a partnership with the National Steel Midwest Division in Portage, Indiana. The GTMS provides crucial on-line thermal process control information during the manufacturing of galvanneal steel. The system has been used with the induction furnaces to measure temperatures ranging from 840 to 1292 F with an accuracy of better than {+-}9 F. The GTMS provides accurate, reliable temperature information thus ensuring a high quality product, reducing waste, and saving energy. The production of uniform, high-quality galvanneal steel is only possible through strict temperature control.

Beshears, D.L.; Allison, S.W.; Andrews, W.H.; Cates, M.R.; Grann, E.B.; Manges, W.W.; McIntyre, T.J.; Scudiere, M.B.; Simpson, M.L.; Childs, R.M.; Vehec, J.; Zhang, L.

1999-06-01T23:59:59.000Z

199

Surface moisture measurement system hardware acceptance test report  

SciTech Connect

This document summarizes the results of the hardware acceptance test for the Surface Moisture Measurement System (SMMS). This test verified that the mechanical and electrical features of the SMMS functioned as designed and that the unit is ready for field service. The bulk of hardware testing was performed at the 306E Facility in the 300 Area and the Fuels and Materials Examination Facility in the 400 Area. The SMMS was developed primarily in support of Tank Waste Remediation System (TWRS) Safety Programs for moisture measurement in organic and ferrocyanide watch list tanks.

Ritter, G.A., Westinghouse Hanford

1996-05-28T23:59:59.000Z

200

The Efficacy of Aerial Search During the Battle of Midway  

Science Conference Proceedings (OSTI)

The Battle of Midway (June 4-6, 1942) is considered one of the pivotal naval encounters of the Second World War. The battle has been examined in detail within both popular and scholarly literature, and a common opinion found in virtually all of these ... Keywords: Aerial Search, Battle of Midway, Monte Carlo Simulation, Viewsheds, World War II

Denis J. Dean

2011-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "aerial measuring system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Aerial Surveys to Estimate Abundance of Wintering Waterfowl in Mississippi  

E-Print Network (OSTI)

1 Aerial Surveys to Estimate Abundance of Wintering Waterfowl in Mississippi Aaron Pearse, Rick Kaminski, Steve Dinsmore, and Ken Reinecke Monitoring Waterfowl · Banding program · Breeding-ground survey(s) · Hunter surveys · Wintering waterfowl surveys Objectives Design Evaluate Application 1) Sampling 2

Gray, Matthew

202

Multi-area power system state estimation utilizing boundary measurements and phasor measurement units ( PMUs)  

E-Print Network (OSTI)

The objective of this thesis is to prove the validity of a multi-area state estimator and investigate the advantages it provides over a serial state estimator. This is done utilizing the IEEE 118 Bus Test System as a sample system. This thesis investigates the benefits that stem from utilizing a multi-area state estimator instead of a serial state estimator. These benefits are largely in the form of increased accuracy and decreased processing time. First, the theory behind power system state estimation is explained for a simple serial estimator. Then the thesis shows how conventional measurements and newer, more accurate PMU measurements work within the framework of weighted least squares estimation. Next, the multi-area state estimator is examined closely and the additional measurements provided by PMUs are used to increase accuracy and computational efficiency. Finally, the multi-area state estimator is tested for accuracy, its ability to detect bad data, and computation time.

Freeman, Matthew A

2006-08-01T23:59:59.000Z

203

Apparatus and systems for measuring elongation of objects, methods of measuring, and reactor  

DOE Patents (OSTI)

Elongation measurement apparatuses and systems comprise at least two Linear Variable Differential Transformers (LVDTs) with a push rod coupled to each of the at least two LVDTs at one longitudinal end thereof. At least one push rod extends to a base and is coupled thereto at an opposing longitudinal end, and at least one other push rod extends to a location spaced apart from the base and is configured to receive a sample between an opposing longitudinal end of the at least one other push rod and the base. Nuclear reactors comprising such apparatuses and systems and methods of measuring elongation of a material are also disclosed.

Rempe, Joy L. (Idaho Falls, ID); Knudson, Darrell L. (Firth, ID); Daw, Joshua E. (Idaho Falls, ID); Condie, Keith G. (Idaho Falls, ID); Stoots, Carl M. (Idaho Falls, ID)

2011-11-29T23:59:59.000Z

204

Model Based Sensor System for Temperature Measurement in R744 Air Conditioning Systems  

E-Print Network (OSTI)

The goal is the development of a novel principle for the temperature acquisition of refrigerants in CO2 air conditioning systems. The new approach is based on measuring the temperature inside a pressure sensor, which is also needed in the system. On the basis of simulative investigations of different mounting conditions functional relations between measured and medium temperature will be derived.

Reitz, Sven; Schneider, Peter

2008-01-01T23:59:59.000Z

205

A Complex Multitasked Data Acquisition and Control System for Measuring  

NLE Websites -- All DOE Office Websites (Extended Search)

Complex Multitasked Data Acquisition and Control System for Measuring Complex Multitasked Data Acquisition and Control System for Measuring Window Thermal Efficiency, or How TSX+ Saved Our Project When It Outgrew RT-11 Title A Complex Multitasked Data Acquisition and Control System for Measuring Window Thermal Efficiency, or How TSX+ Saved Our Project When It Outgrew RT-11 Publication Type Conference Paper LBNL Report Number LBL-30613 Year of Publication 1991 Authors Yazdanian, Mehry, J. Randy Michelson, and Guy O. Kelley Conference Name U.S. DECUS Spring 1991 Symposium, May 6-10, 1991 Date Published 05/1991 Conference Location Atlanta, GA Other Numbers Mo-282 Abstract The Mobile Window Thermal Test facility (MoWiTT) predicts the energy efficiency of windows by continuously measuring the net heat transfer into and out of two room-sized calorimeters. The system consists of a data acquisition/control unit which communicates through a General Purpose Interface bus (GPIB IEEE-488) with an LSI-11/23 computer. We wrote the software in FORTRAN 77 and run it under TSX+ using detached jobs, the message facility, and shared run time systems to execute nine 64KB jobs which simultaneously take data and store it on disk. We arbitrate the access to a single scanner on the GPIB by running a SERVER task which acts as a virtual machine to serialize the requests. We can control and monitor the system remotely and run a number of interactive jobs without interfering with the data collection tasks. We cover a description of the hardware; the software requirements, including the libraries to control the data collection and drive the hardware; the system architecture, including a block diagram; design considerations to meet real-world requirements; and the problems we discovered along the way and the solutions we found either to correct or to bypass them.

206

Towards semantic performance measurement systems for supply chain management  

Science Conference Proceedings (OSTI)

The literature on Supply Chain Management (SCM) supports the integration of key business processes, including the performance management process, in order to increase the performance within and between the organisations. Nevertheless, the lack of proper ... Keywords: SCOR, business process management, ontology engineering, performance measurement systems, supply chain management

Artturi Nurmi; Thierry Moyaux; Valérie Botta-Genoulaz

2010-10-01T23:59:59.000Z

207

MEASUREMENT OF INTERFACIAL TENSION IN FLUID-FLUID SYSTEMS  

E-Print Network (OSTI)

Interfacial tension at fluid-fluid interfaces is a reflection of the excess energy associated with unsaturated in parts per million concentration (27). DYNAMIC INTERFACIAL TENSION MEASUREMENTS In fluid-fluid systems, detergency, foam or froth generation, and stability (3). In these pro- cesses, dynamic interfacial tensions

Loh, Watson

208

System, method, and apparatus for remote measurement of terrestrial biomass  

DOE Patents (OSTI)

A system, method, and/or apparatus for remote measurement of terrestrial biomass contained in vegetative elements, such as large tree boles or trunks present in an area of interest, are provided. The method includes providing an airborne VHF radar system in combination with a LiDAR system, overflying the area of interest while directing energy toward the area of interest, using the VHF radar system to collect backscatter data from the trees as a function of incidence angle and frequency, and determining a magnitude of the biomass from the backscatter data and data from the laser radar system for each radar resolution cell. A biomass map is generated showing the magnitude of the biomass of the vegetative elements as a function of location on the map by using each resolution cell as a unique location thereon. In certain preferred embodiments, a single frequency is used with a linear array antenna.

Johnson, Patrick W (Jefferson, MD)

2011-04-12T23:59:59.000Z

209

Advanced Techniques for Power System Identification from Measured Data  

SciTech Connect

Time-synchronized measurements provide rich information for estimating a power-system's electromechanical modal properties via advanced signal processing. This information is becoming critical for the improved operational reliability of interconnected grids. A given mode's properties are described by its frequency, damping, and shape. Modal frequencies and damping are useful indicators of power-system stress, usually declining with increased load or reduced grid capacity. Mode shape provides critical information for operational control actions. This project investigated many advanced techniques for power system identification from measured data focusing on mode frequency and damping ratio estimation. Investigators from the three universities coordinated their effort with Pacific Northwest National Laboratory (PNNL). Significant progress was made on developing appropriate techniques for system identification with confidence intervals and testing those techniques on field measured data and through simulation. Experimental data from the western area power system was provided by PNNL and Bonneville Power Administration (BPA) for both ambient conditions and for signal injection tests. Three large-scale tests were conducted for the western area in 2005 and 2006. Measured field PMU (Phasor Measurement Unit) data was provided to the three universities. A 19-machine simulation model was enhanced for testing the system identification algorithms. Extensive simulations were run with this model to test the performance of the algorithms. University of Wyoming researchers participated in four primary activities: (1) Block and adaptive processing techniques for mode estimation from ambient signals and probing signals, (2) confidence interval estimation, (3) probing signal design and injection method analysis, and (4) performance assessment and validation from simulated and field measured data. Subspace based methods have been use to improve previous results from block processing techniques. Bootstrap techniques have been developed to estimate confidence intervals for the electromechanical modes from field measured data. Results were obtained using injected signal data provided by BPA. A new probing signal was designed that puts more strength into the signal for a given maximum peak to peak swing. Further simulations were conducted on a model based on measured data and with the modifications of the 19-machine simulation model. Montana Tech researchers participated in two primary activities: (1) continued development of the 19-machine simulation test system to include a DC line; and (2) extensive simulation analysis of the various system identification algorithms and bootstrap techniques using the 19 machine model. Researchers at the University of Alaska-Fairbanks focused on the development and testing of adaptive filter algorithms for mode estimation using data generated from simulation models and on data provided in collaboration with BPA and PNNL. There efforts consist of pre-processing field data, testing and refining adaptive filter techniques (specifically the Least Mean Squares (LMS), the Adaptive Step-size LMS (ASLMS), and Error Tracking (ET) algorithms). They also improved convergence of the adaptive algorithms by using an initial estimate from block processing AR method to initialize the weight vector for LMS. Extensive testing was performed on simulated data from the 19 machine model. This project was also extensively involved in the WECC (Western Electricity Coordinating Council) system wide tests carried out in 2005 and 2006. These tests involved injecting known probing signals into the western power grid. One of the primary goals of these tests was the reliable estimation of electromechanical mode properties from measured PMU data. Applied to the system were three types of probing inputs: (1) activation of the Chief Joseph Dynamic Brake, (2) mid-level probing at the Pacific DC Intertie (PDCI), and (3) low-level probing on the PDCI. The Chief Joseph Dynamic Brake is a 1400 MW disturbance to the system and is injected for a ha

Pierre, John W.; Wies, Richard; Trudnowski, Daniel

2008-11-25T23:59:59.000Z

210

Measurement-based Coherency Identification and Aggregation for Power Systems  

SciTech Connect

In power system model reduction, a high reduction ratio is often desired to handle much more complex power systems. The bottleneck of traditional methods lies in: ? Coherency identification methods are conservative. Some coherency generators are not detected when system topology or operating points change, because coherency identification depends on system topology or operating points. ?There are some solitary generators in external systems. These generators do not belong to any coherency group. However, sometimes these solitary generators have little impact on tie-line power flow, and it might be possible to ignore their dynamics in model reduction. But because they do not belong to any coherency group, existing reduction methods cannot handle them well. In order to overcome the first problem, a measurement-based online coherency identification method is presented in this paper. By analyzing post-fault trajectories measured by Phasor Measurement Units (PMUs), coherency generators are identified through principal component analysis. The method can track time-varying system topology and operating points. In order to address the second problem, this paper introduces sensitivity analysis into traditional reduction methods. The sensitivity of tie-line power flow against injected active power of external system generators is derived. Those generators having loose connection with tie-line power are identified through the sensitivity analysis, and their dynamics are ignored by replacing them with negative impedances. We test if the sensitivity, based on static power flow, provides good guidance to reduce the dynamic model. Case studies show that the proposed method can handle well these solitary generators and the reduction ratio can be enhanced through this method. Future work will include generalization of the sensitivity method.

Wang, Shaobu; Lu, Shuai; Lin, Guang; Zhou, Ning

2012-07-26T23:59:59.000Z

211

New portable sensor system for rotational seismic motion measurements  

SciTech Connect

A new mechanical sensor system for recording the rotation of ground velocity has been constructed. It is based on measurements of differential motions between paired sensors mounted along the perimeter of a rigid (undeformable) disk. The elementary sensors creating the pairs are sensitive low-frequency geophones currently used in seismic exploration to record translational motions. The main features of the new rotational seismic sensor system are flat characteristics in the wide frequency range from 1 to 200 Hz and sensitivity limit of the order of 10{sup -8} rad/s. Notable advantages are small dimensions, portability, easy installation and operation in the field, and the possibility of calibrating the geophones in situ simultaneously with the measurement. An important feature of the instrument is that it provides records of translational seismic motions together with rotations, which allows many important seismological applications. We have used the new sensor system to record the vertical rotation velocity due to a small earthquake of M{sub L}=2.2, which occurred within the earthquake swarm in Western Bohemia in autumn 2008. We found good agreement of the rotation record with the transverse acceleration as predicted by theory. This measurement demonstrates that this device has a much wider application than just to prospecting measurements, for which it was originally designed.

Brokesova, Johana [Department of Geophysics, Faculty of Mathematics and Physics, Charles University, V Holesovickach 2, 18000 Prague (Czech Republic); Malek, Jiri [Institute of Rock Structure and Mechanics, Czech Academy of Sciences, V Holesovickach 41, 18209 Prague (Czech Republic)

2010-08-15T23:59:59.000Z

212

An aerial radiological survey of the Tonopah Test Range including Clean Slate 1,2,3, Roller Coaster, decontamination area, Cactus Springs Ranch target areas. Central Nevada  

SciTech Connect

An aerial radiological survey was conducted of major sections of the Tonopah Test Range (TTR) in central Nevada from August through October 1993. The survey consisted of aerial measurements of both natural and man-made gamma radiation emanating from the terrestrial surface. The initial purpose of the survey was to locate depleted uranium (detecting {sup 238}U) from projectiles which had impacted on the TTR. The examination of areas near Cactus Springs Ranch (located near the western boundary of the TTR) and an animal burial area near the Double Track site were secondary objectives. When more widespread than expected {sup 241}Am contamination was found around the Clean Slates sites, the survey was expanded to cover the area surrounding the Clean Slates and also the Double Track site. Results are reported as radiation isopleths superimposed on aerial photographs of the area.

Proctor, A.E.; Hendricks, T.J.

1995-08-01T23:59:59.000Z

213

Continuous Measurement and Stochastic Methods in Quantum Optical Systems  

E-Print Network (OSTI)

This dissertation studies the statistics and modeling of a quantum system probed by a coherent laser field. We focus on an ensemble of qubits dispersively coupled to a traveling wave light field. The first research topic explores the quantum measurement statistics of a quasi-monochromatic laser probe. We identify the shortest timescale that successive measurements approximately commute. Our model predicts that for a probe in the near infrared, noncommuting measurement effects are apparent for subpicosecond times. The second dissertation topic attempts to find an approximation to a conditional master equation, which maps identical product states to identical product states. Through a technique known as projection filtering, we find such a equation for an ensemble of qubits experiencing a diffusive measurement of a collective angular momentum projection, and global rotations. We then test the quality of the approximation through numerical simulations. In the presence of strong randomized rotations, the approximation reproduces the exact expectation values to within 95%. The final topic applies the projection filter to the problem of state reconstruction. We find an initial state estimate based on a single continuous measurement of an identically prepared atomic ensemble. Given the ability to make a continuous collective measurement and simultaneously applying time varying controls, it is possible to find an accurate estimate given based upon a single measurement realization. Here we explore the fundamental limits of this protocol by studying an idealized model for pure qubits, which is limited only by measurement backaction. Using the exact dynamics to produce simulated measurements, we then numerically search for a maximum likelihood estimate based on the approximate expression. Our estimation technique nearly achieves an average fidelity bound set by an optimum POVM.

Robert L. Cook

2013-01-25T23:59:59.000Z

214

System having unmodulated flux locked loop for measuring magnetic fields  

DOE Patents (OSTI)

A system (10) for measuring magnetic fields, wherein the system (10) comprises an unmodulated or direct-feedback flux locked loop (12) connected by first and second unbalanced RF coaxial transmission lines (16a, 16b) to a superconducting quantum interference device (14). The FLL (12) operates for the most part in a room-temperature or non-cryogenic environment, while the SQUID (14) operates in a cryogenic environment, with the first and second lines (16a, 16b) extending between these two operating environments.

Ganther, Jr., Kenneth R. (Olathe, KS); Snapp, Lowell D. (Blue Springs, MO)

2006-08-15T23:59:59.000Z

215

The Fisher information for measurements on open quantum systems  

E-Print Network (OSTI)

The quantum Cramer-Rao bound relates estimation sensitivity in quantum precision measurements to the distinguishability of different quantum states. We show that the theoretical sensitivity limit to parameters that govern the dynamics of an open quantum system coupled to a fully quantized environment can be evaluated from the reduced system master equation. We provide the bound for a laser driven two-state atom, where photon counting and homodyne detection of the fluorescence signal yield different sensitivity to the atomic and field parameters, while none of them exceed our general sensitivity limit.

Søren Gammelmark; Klaus Mølmer

2013-10-22T23:59:59.000Z

216

Resonance Ionization Mass Spectrometry System for Measurement of Environmental Samples  

Science Conference Proceedings (OSTI)

A resonance ionization mass spectrometry (RIMS) system has been developed at the National Institute of Standards and Technology (NIST) for sensitive and selective determination of radio?cesium in the environment. The overall efficiency was determined to be 4×10?7 with a combined (laser and mass spectrometer) selectivity of 108 for both 135Cs and 137Cs with respect to 133Cs. RIMS isotopic ratio measurements of 135Cs/ 137Cs were performed on a nuclear fuel burn?up sample and compared to measurements on a similar system at Pacific Northwest National Laboratory (PNNL) and to conventional thermal ionization mass spectrometry (TIMS). Results of preliminary RIMS investigations on a freshwater lake sediment sample are also discussed.

L. Pibida; C. A. McMahon; W. Nörtershäuser; B. A. Bushaw

2002-01-01T23:59:59.000Z

217

System for measuring multiphase flow using multiple pressure differentials  

DOE Patents (OSTI)

An improved method and system for measuring a multi-phase flow in a pressure flow meter. An extended throat venturi is used and pressure of the multi-phase flow is measured at three or more positions in the venturi, which define two or more pressure differentials in the flow conduit. The differential pressures are then used to calculate the mass flow of the gas phase, the total mass flow, and the liquid phase. The system for determining the mass flow of the high void fraction fluid flow and the gas flow includes taking into account a pressure drop experienced by the gas phase due to work performed by the gas phase in accelerating the liquid phase.

Fincke, James R. (Idaho Falls, ID)

2003-01-01T23:59:59.000Z

218

Aerial survey of Bay Area continues through Saturday | National Nuclear  

National Nuclear Security Administration (NNSA)

of Bay Area continues through Saturday | National Nuclear of Bay Area continues through Saturday | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > NNSA Blog > Aerial survey of Bay Area continues through Saturday Aerial survey of Bay Area continues through Saturday Posted By Office of Public Affairs NNSA Blog This week, a NNSA helicopter has been flying at a low-level altitude over

219

NREL: MIDC/SRRL Baseline Measurement System (39.74 N, 105.18...  

NLE Websites -- All DOE Office Websites (Extended Search)

The Measurement and Instrumentation Data Center collects Irradiance and Meterological data from the Solar Radiation Research Laboratory Baseline Measurement System....

220

ORNL system for measurement of telephone-line attenuation  

SciTech Connect

The purpose of modifying the TS-100 Automated Tempest Test System software was to use the equipment for making radio-frequency attenuation measurements between an input port and an output port of a telephone network. One set of tests was performed to simulate the electromagnetic radiation from a secure computer terminal and its coupling to telephone lines within a building. Another set of tests was conducted to determine the procedures for measuring attenuation on telephone lines between buildings that are all within the secure zone. The measurements indicate that attenuation between the terminal and the telephone is a function of many variables; however, attenuation in the cable between the buildings is proportional to the length of the cable between the buildings. 1 ref., 2 figs.

Rochelle, R.W.; Williams, I.E.

1988-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "aerial measuring system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Interface between land and water,shoreline change analyses for erosion/accretion,hazards,planning Derived from coastal survey maps,nautical charts,aerial photos,LIDAR  

E-Print Network (OSTI)

/accretion,hazards,planning Derived from coastal survey maps,nautical charts,aerial photos,LIDAR Linear features Can be animated survey maps/charts,legal definitions,clipping/masking;various measuring devices Linear and polygonal:10,000 to 1:24,000;locational accuracy ~10-50 m Point and line symbology annotated with species type Survey

Wright, Dawn Jeannine

222

Lessons learned on closed cavity thermophotovoltaic system efficiency measurements  

DOE Green Energy (OSTI)

Previous efficiency measurements have highlighted that to accurately measure and predict thermophotovoltaic (TPV) integrated cell or array efficiencies, a thorough understanding of the system is required. This includes knowledge of intrinsic diode and filter characteristics, radiative surface properties of all materials used within the cavity, and an intimate knowledge of the radiator/photon source. As a result of these and other lessons learned, the cavity test fixture used in earlier experiments was redesigned. To reduce radiator temperature gradients, the radiator was oversized and thickened, cavity walls were eliminated, the diode heat sink and shielding material were separated, and the cold side was redesigned to incorporate a steady state heat absorbed measurement technique. This redesigned test fixture provides an isothermal radiator and significantly enhances calorimetry capabilities. This newly designed cavity test fixture, in conjunction with the Monte Carlo Photon Transport code RACER-X, was used to improve and demonstrate the understanding of in-cavity TPV diode/module system efficiency testing. A single TPV diode was tested in this new fixture and yielded good agreement between measurements and predictions.

Gethers, C.K.; Ballinger, C.T.; DePoy, D.M. [Lockheed Martin Corp., Schenectady, NY (United States)

1998-10-01T23:59:59.000Z

223

An aerial radiological survey of Naturita, Colorado and surrounding area  

SciTech Connect

An aerial radiological survey of four areas in the vicinity of the inactive uranium mill tailings site at Naturita, Colorado was conducted in September 1981. The average background radiation exposure rate (normalized to 3 feet above the ground) was about 10 to 16 microroentgens per hour ({mu}R/h). Uranium ore or tailings were detected at Naturita, Nucla, East Vancorum, and the general region downriver and downwind from the former mill tailings site.

Jaffe, R.J.

1982-09-01T23:59:59.000Z

224

System for measuring electricity and method of providing and using the same  

SciTech Connect

Some embodiments include a system for measuring electricity. Other embodiments of related systems and methods are also disclosed.

Kamer, Doanld B; Page, Robert

2013-11-26T23:59:59.000Z

225

'Known Secure Sensor Measurements' for Critical Infrastructure Systems: Detecting Falsification of System State  

Science Conference Proceedings (OSTI)

This paper describes a first investigation on a low cost and low false alarm, reliable mechanism for detecting manipulation of critical physical processes and falsification of system state. We call this novel mechanism Known Secure Sensor Measurements (KSSM). The method moves beyond analysis of network traffic and host based state information, in fact it uses physical measurements of the process being controlled to detect falsification of state. KSSM is intended to be incorporated into the design of new, resilient, cost effective critical infrastructure control systems. It can also be included in incremental upgrades of already in- stalled systems for enhanced resilience. KSSM is based on known secure physical measurements for assessing the likelihood of an attack and will demonstrate a practical approach to creating, transmitting, and using the known secure measurements for detection.

Miles McQueen; Annarita Giani

2011-09-01T23:59:59.000Z

226

An Unmanned Aerial Vehicle as Human-Assistant Robotics System  

E-Print Network (OSTI)

According to the American Heritage Dictionary [1],Robotics is the science or study of the technology associated with the design, fabrication, theory, and application of Robots. The term Hoverbot is also often used to refer to sophisticated mechanical devices that are remotely controlled by human beings even though these devices are not autonomous. This paper describes a remotely controlled hoverbot by installing a transmitter and receiver on both sides that is the control computer (PC) and the hoverbot respectively. Data is transmitted as signal or instruction via a infrastructure network which is converted into a command for the hoverbot that operates at a remote site.

Chingtham, Tejbanta Singh; Ghose, M K; 10.1109/ICCIC.2010.5705731

2011-01-01T23:59:59.000Z

227

An aerial radiological survey of the Central Savannah River Site, Aiken, South Carolina  

Science Conference Proceedings (OSTI)

An aerial radiological survey was conducted over a 194-square- kilometer (75-square-mile) area encompassing the central portion of the Savannah River Site (SRS). The survey was flown during February 10--27, 1987. These radiological measurements were used as baseline data for the central area and for determining the extent of man-made radionuclide distribution. Previous SRS surveys included small portions of the area; the 1987 survey was covered during the site- wide survey conducted in 1979. Man-made radionuclides (including cobalt-60, cesium-137, protactinium-234m, and elevated levels of uranium-238 progeny) that were detected during the survey were typical of those produced by the reactor operations and material processing activities being conducted in the area. The natural terrestrial radiation levels were consistent with those measured during prior surveys of other SRS areas. 1 refs., 4 figs.

Feimster, E.L.

1991-09-01T23:59:59.000Z

228

Quantum discord in bipartite systems based on projection measurements  

E-Print Network (OSTI)

We propose a method to detect an exact quantum discord for some general bipartite quantum systems analytically. Here we show that for some density matrices, after the orthogonal projective measurement the state of the matrix will be diagonal and classic. So we can obtain the maximum amount of classical information in this case. Consequently, for these density matrices instead of using the positive operator valued measures (POVMs), projective operators can be used. Also we obtain the relation between quantum discord with relative entropy of discord for these states and show that for various examples of X-states such as on two qubit and qubit-qutrit density matrices, the relative entropy of discord is replaced by quantum discord.

M. Mahdian; F. Marahem

2013-08-05T23:59:59.000Z

229

System and method for measuring permeability of materials  

DOE Patents (OSTI)

Systems and methods are provided for measuring the permeance of a material. The permeability of the material may also be derived. Systems typically provide a liquid or high concentration fluid bath on one side of a material test sample, and a gas flow across the opposing side of the material test sample. The mass flow rate of permeated fluid as a fraction of the combined mass flow rate of gas and permeated fluid is used to calculate the permeance of the material. The material test sample may be a sheet, a tube, or a solid shape. Operational test conditions may be varied, including concentration of the fluid, temperature of the fluid, strain profile of the material test sample, and differential pressure across the material test sample.

Hallman, Jr., Russell Louis; Renner, Michael John

2013-07-09T23:59:59.000Z

230

An Attempt To Use Aerial Gamma-Ray Spectrometry Results In Petrochemic...  

Open Energy Info (EERE)

are fairly rich in radioelement concentrations. The aerial gamma-ray spectrometric survey data, gathered for the purpose of radioactive mineral exploration were utilized as an...

231

Evaluation of aerial thermography to discriminate loft insulation in residential housing .  

E-Print Network (OSTI)

??This thesis examines the use of aerial thermography data to discriminate loft (attic) insulation levels in residential housing, with ventilated pitched roofs, in the UK.… (more)

Allinson, David

2007-01-01T23:59:59.000Z

232

High sensitivity permeation measurement system for 'ultrabarrier' thin films  

SciTech Connect

The authors demonstrate a new technique for high sensitivity gas permeation measurements by integrating mass spectrometry with programed accumulation, detection, and evacuation of permeant. After passing through the film of interest, the gas permeant is captured and accumulated in an isolated ultrahigh vacuum (UHV) volume. The permeant is then allowed to enter an adjacent residual gas analyzer (RGA) and the resulting partial pressure increase is correlated with the steady state permeation rate. Calibrated results are given for helium and argon permeation through polymer films. The measured detection limits of the system are 1.8x10{sup -4} cm{sup 3}/m{sup 2} day for helium and 2.5x10{sup -4} cm{sup 3}/m{sup 2} day for argon. Both values are several orders of magnitude lower than what is available from commercial instruments or similar RGA-based instruments. Potential applications of this technique include measurement of oxygen and water vapor permeation with sensitivities required for assessment of ultrabarrier coatings.

Zhang Xiaodong; Lewis, Jay S.; Wolter, Scott D.; Parker, Charles B.; Glass, Jeffrey T. [Pratt School of Engineering, Duke University, Durham, North Carolina 27708 (United States); RTI International, Research Triangle Park, North Carolina 27709 (United States); Pratt School of Engineering, Duke University, Durham, North Carolina 27708 (United States)

2007-11-15T23:59:59.000Z

233

AERIAL SURVEYS OF BELUGA IN COOK INLET, ALASKA,  

E-Print Network (OSTI)

The National Marine Fisheries Service (NMFS) conducted an aerial survey of the beluga population in Cook Inlet, Alaska, during 4-11 June 2002. The 45 hr survey was flown in a twin-engine, high-wing aircraft at an altitude of 244 m (800 ft) and speed of 185 km/hr (100 kt), consistent with NMFS ’ surveys conducted each year since 1993. The flights in June 2002 included one or more surveys of coastal areas (flown 1.4 km offshore) around the entire Inlet and 1,234 km of transects across the Inlet, effectively searching more than 26 % of Cook Inlet but nearly 100 % of the coastal areas. Paired, independent observers searched on the coastal (left) side of the plane, where virtually all beluga sightings occur, while a single observer was on the right. A computer operator/data recorder was also on the left side. After finding beluga groups, a series of aerial passes were made with two pairs of primary observers each making 4 or more independent counts of each group. Median counts made in optimal viewing conditions on 2 to 6 different days were 0-93 beluga in the Susitna Delta (between the Beluga and Little Susitna Rivers), 54-97 in Knik Arm (there appeared to be exchanges of whales between the Susitna area and Knik Arm), and 10-11 in Chickaloon Bay. No belugas were seen elsewhere. This sighting distribution has been consistent in June or July most years since 1996. The sum of the median aerial estimates (a very rough but quick index of relative abundance, not corrected for estimates of whales missed) for June 2002 is 192 belugas. This

David J. Rugh; Barbara A. Mahoney; Laura K. Litzky; Brad Smith

2002-01-01T23:59:59.000Z

234

Acquisition and registration of aerial video imagery of urban traffic  

SciTech Connect

The amount of information available about urban traffic from aerial video imagery is extremely high. Here we discuss the collection of such video imagery from a helicopter platform with a low-cost sensor, and the post-processing used to correct radial distortion in the data and register it. The radial distortion correction is accomplished using a Harris model. The registration is implemented in a two-step process, using a globally applied polyprojective correction model followed by a fine scale local displacement field adjustment. The resulting cleaned-up data is sufficiently well-registered to allow subsequent straight-forward vehicle tracking.

Loveland, Rohan C [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

235

Design and Instrumentation of a Measurement and Calibration System for an Acoustic Telemetry System  

Science Conference Proceedings (OSTI)

The Juvenile Salmon Acoustic Telemetry System (JSATS) is an active sensing technology developed by Portland District, the U.S. Army Corps of Engineers for detecting and tracking small fish. It is used at hydroelectric projects and in the laboratory for evaluating behavior and survival of juvenile salmonids migrating through the Federal Columbia River Power System to the Pacific Ocean. It provides critical data for salmon protection and development of more “fish-friendly” hydroelectric facilities. The objective of this study was to design and build a measurement and calibration system for evaluating the JSATS component, because the JSATS requires comprehensive acceptance and performance testing in a controlled environment before it is deployed in the field. The system consists of a reference transducer, a water test tank lined with anechoic material, a motion control unit, a reference receiver, a signal conditioner and amplifier unit, a data acquisition board, MATLAB control and analysis interface, and a computer. The fully integrated system has been evaluated successfully at various simulated distances and using different encoded signals at frequencies within the bandwidth of the JSATS transmitter. It provides accurate acoustic mapping capability in a controlled environment and automates the process that allows real-time measurements and evaluation of the piezoelectric transducers, sensors, or the acoustic fields. The measurement and calibration system has been in use since 2009 for acceptance and performance testing of, and further improvements to, the JSATS.

Deng, Zhiqun; Weiland, Mark A.; Carlson, Thomas J.; Eppard, M. B.

2010-03-31T23:59:59.000Z

236

Measurable Control System Security through Ideal Driven Technical Metrics  

Science Conference Proceedings (OSTI)

The Department of Homeland Security National Cyber Security Division supported development of a small set of security ideals as a framework to establish measurable control systems security. Based on these ideals, a draft set of proposed technical metrics was developed to allow control systems owner-operators to track improvements or degradations in their individual control systems security posture. The technical metrics development effort included review and evaluation of over thirty metrics-related documents. On the bases of complexity, ambiguity, or misleading and distorting effects the metrics identified during the reviews were determined to be weaker than necessary to aid defense against the myriad threats posed by cyber-terrorism to human safety, as well as to economic prosperity. Using the results of our metrics review and the set of security ideals as a starting point for metrics development, we identified thirteen potential technical metrics - with at least one metric supporting each ideal. Two case study applications of the ideals and thirteen metrics to control systems were then performed to establish potential difficulties in applying both the ideals and the metrics. The case studies resulted in no changes to the ideals, and only a few deletions and refinements to the thirteen potential metrics. This led to a final proposed set of ten core technical metrics. To further validate the security ideals, the modifications made to the original thirteen potential metrics, and the final proposed set of ten core metrics, seven separate control systems security assessments performed over the past three years were reviewed for findings and recommended mitigations. These findings and mitigations were then mapped to the security ideals and metrics to assess gaps in their coverage. The mappings indicated that there are no gaps in the security ideals and that the ten core technical metrics provide significant coverage of standard security issues with 87% coverage. Based on the two case studies and evaluation of the seven assessments, the security ideals demonstrated their value in guiding security thinking. Further, the final set of core technical metrics has been demonstrated to be both usable in the control system environment and provide significant coverage of standard security issues.

Miles McQueen; Wayne Boyer; Sean McBride; Marie Farrar; Zachary Tudor

2008-01-01T23:59:59.000Z

237

A Low-Cost Natural Gas/Freshwater Aerial Pipeline  

E-Print Network (OSTI)

Offered is a new type of low-cost aerial pipeline for delivery of natural gas, an important industrial and residential fuel, and freshwater as well as other payloads over long distances. The offered pipeline dramatically decreases the construction and operation costs and the time necessary for pipeline construction. A dual-use type of freight pipeline can improve an arid rural environment landscape and provide a reliable energy supply for cities. Our aerial pipeline is a large, self-lofting flexible tube disposed at high altitude. Presently, the term "natural gas" lacks a precise technical definition, but the main components of natural gas are methane, which has a specific weight less than air. A lift force of one cubic meter of methane equals approximately 0.5 kg. The lightweight film flexible pipeline can be located in the Earth-atmosphere at high altitude and poses no threat to airplanes or the local environment. The authors also suggest using lift force of this pipeline in tandem with wing devices for che...

Bolonkin, A; Bolonkin, Alexander; Cathcart, Richard

2007-01-01T23:59:59.000Z

238

A Low-Cost Natural Gas/Freshwater Aerial Pipeline  

E-Print Network (OSTI)

Offered is a new type of low-cost aerial pipeline for delivery of natural gas, an important industrial and residential fuel, and freshwater as well as other payloads over long distances. The offered pipeline dramatically decreases the construction and operation costs and the time necessary for pipeline construction. A dual-use type of freight pipeline can improve an arid rural environment landscape and provide a reliable energy supply for cities. Our aerial pipeline is a large, self-lofting flexible tube disposed at high altitude. Presently, the term "natural gas" lacks a precise technical definition, but the main components of natural gas are methane, which has a specific weight less than air. A lift force of one cubic meter of methane equals approximately 0.5 kg. The lightweight film flexible pipeline can be located in the Earth-atmosphere at high altitude and poses no threat to airplanes or the local environment. The authors also suggest using lift force of this pipeline in tandem with wing devices for cheap shipment of a various payloads (oil, coal and water) over long distances. The article contains a computed macroproject in northwest China for delivery of 24 billion cubic meter of gas and 23 millions tonnes of water annually.

Alexander Bolonkin; Richard Cathcart

2007-01-05T23:59:59.000Z

239

Aerial survey of Emperor geese and other waterbirds  

E-Print Network (OSTI)

Abstract: This report presents results of the 29 th consecutive year of fall aerial emperor goose surveys in southwest Alaska. All bird and marine mammal species were counted with emphasis on emperor geese, Pacific brant, Canada geese, and Steller’s eiders. Population estimates for emperor geese and Steller’s eiders were 73,531 and 80,102, respectively. Two additional replicate surveys of the Izembek NWR area were flown on 2 and 3 October to estimate sizes of the Pacific brant and Canada goose populations. Averages counts for the Izembek area, based on three surveys, were 138,476 Pacific brant and 29,964 Canada geese. The survey was flown from 26 September to 3 October 2007 from the Naknek River to Bechevin Bay, along the north side of the Alaska Peninsula and along the south side west of Cold Bay. Weather precluded south side coverage east of Cold Bay. The USFWS Turbine-Beaver (N754) was used and a left seat pilot/observer and right seat observer made observations along coastlines and over estuaries from 45m (150 feet) ASL and at 200km/hr (110 kts). Key words: aerial survey, emperor geese, waterbirds, southwest Alaska. October 2007

Edward J. Mallek; Christian P. Dau; U. S. Fish; Wildlife Service; U. S. Fish; Wildlife Service

2005-01-01T23:59:59.000Z

240

Efficiency of Unmanned Aircraft Systems (UAS) Relative to Manned Aircraft for Surveying Bowhead Whale Distribution and Density in the Arctic  

E-Print Network (OSTI)

, interest in the use of Unmanned Aircraft Systems (UAS) as an aerial survey platform for studying BCB manned aircraft surveys as part of the Bowhead Whale Aerial Survey Project (BWASP) (Monnett and Treacy through funding from MMS (Fig. 1). BWASP and COMIDA aerial surveys followed a linetransect protocol

Note: This page contains sample records for the topic "aerial measuring system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Aerial Righting, Directed Aerial Descent, and Maneuvering in the Evolution of Flight in Birds  

E-Print Network (OSTI)

use of a force sensor and 3D printer. Chapter 4 Disturbancewere then output to a 3D printer (ProJet HD 3000; 3D Systems

Evangelista, Dennis Jose

2013-01-01T23:59:59.000Z

242

Evaluation of an OPNET model for unmanned aerial vehicle (UAV) networks  

Science Conference Proceedings (OSTI)

The concept of Unmanned Aerial Vehicles (UAV) was first used as early as the American Civil War, when the North and the South launched balloons with explosive devices. Since the American Civil War, the UAV concept has been used in some form in subsequent ... Keywords: mobile ad hoc networks, simulation validation, unmanned aerial vehicle

Clifton M. Durham; Todd R. Andel; Kenneth M. Hopkinson; Stuart H. Kurkowski

2009-03-01T23:59:59.000Z

243

Introduction Aerial surveys from aircraft are a critical component of many environmental research,  

E-Print Network (OSTI)

Introduction Aerial surveys from aircraft are a critical component of many environmental research an ability to directly estimate detection probability. By bringing the ground sampling and aerial survey more safety concerns because of low altitude flights and tight maneuvers necessary for such surveys

Mazzotti, Frank

244

Embedded Estimation of Fault Parameters in an Unmanned Aerial Vehicle Sikandar Samar  

E-Print Network (OSTI)

Embedded Estimation of Fault Parameters in an Unmanned Aerial Vehicle Sikandar Samar Information of the Aerosonde unmanned aerial vehicle (UAV) in the presence of winds and turbulence. An excellent performance studied in the controls community for the past two decades; see survey papers [1], [2], [3

245

Pacific Walrus Sightings Documented by COMIDA Aerial Surveys of the Northeastern Chukchi Sea in 2010  

E-Print Network (OSTI)

Pacific Walrus Sightings Documented by COMIDA Aerial Surveys of the Northeastern Chukchi Sea agreement with the Minerals Management Service, conducted aerial surveys in the northeastern Chukchi Sea as part of the Chukchi Offshore Monitoring in Drilling Area (COMIDA) project. The surveys, which have been

246

Using vertical aerial photography to estimate mass balance at a point  

E-Print Network (OSTI)

Using vertical aerial photography to estimate mass balance at a point L. A. RASMUSSEN 1 and R. M. KRIMMEL2 1 Geophysics Program, University of Washington, Seattle WA 98195, U.S.A. 2 US Geological Survey-94. Vertical aerial photography from late summer 1992, 1993, and 1994 is analyzed photogrammetrically to get

Rasmussen, L.A.

247

Wind-Energy based Path Planning For Unmanned Aerial Vehicles Using Markov Decision Processes  

E-Print Network (OSTI)

Wind-Energy based Path Planning For Unmanned Aerial Vehicles Using Markov Decision Processes Wesam H. Al-Sabban, Luis F. Gonzalez and Ryan N. Smith Abstract-- Exploiting wind-energy is one possible way to extend the flight duration of an Unmanned Aerial Vehicle. Wind-energy can also be used

Smith, Ryan N.

248

Parallel file system measurement and modeling using colored petri nets  

Science Conference Proceedings (OSTI)

Parallel file systems are significant challenges for high performance data-intensive system designers due to their complexity. Being able to study features and designs before building the actual system is an advantage that a simulation model can offer. ... Keywords: colored petri net, parallel file system modeling, parallel file system simulation, pvfs

Hai Quang Nguyen; Amy Apon

2012-04-01T23:59:59.000Z

249

Extraction of Point Source Gamma Signals from Aerial Survey Data Taken over a Las Vegas Nevada Residential Area  

SciTech Connect

Detection of point-source gamma signals from aerial measurements is complicated by widely varying terrestrial gamma backgrounds, since these variations frequently resemble signals from point-sources. Spectral stripping techniques have been very useful in separating man-made and natural radiation contributions which exist on Energy Research and Development Administration (ERDA) plant sites and other like facilities. However, these facilities are generally situated in desert areas or otherwise flat terrain with few man-made structures to disturb the natural background. It is of great interest to determine if the stripping technique can be successfully applied in populated areas where numerous man-made disturbances (houses, streets, yards, vehicles, etc.) exist.

Thane J. Hendricks

2007-05-01T23:59:59.000Z

250

Modeling and Measurement Constraints in Fault Diagnostics for HVAC Systems  

E-Print Network (OSTI)

in Fault Diagnostics for HVAC Systems Massieh Najafi 1 ,tools for determining HVAC diagnostics, methods todetect faults in HVAC systems are still generally

Najafi, Massieh

2010-01-01T23:59:59.000Z

251

Aerial Neutron Detection of Cosmic-Ray Interactions with the Earth's Surface  

SciTech Connect

We have demonstrated the ability to measure the neutron flux produced by the cosmic-ray interaction with nuclei in the ground surface using aerial neutron detection. High energy cosmic-rays (primarily muons with GeV energies) interact with the nuclei in the ground surface and produce energetic neutrons via spallation. At the air-surface interface, the neutrons produced by spallation will either scatter within the surface material, become thermalized and reabsorbed, or be emitted into the air. The mean free path of energetic neutrons in air can be hundreds of feet as opposed to a few feet in dense materials. As such, the flux of neutrons escaping into the air provides a measure of the surface nuclei composition. It has been demonstrated that this effect can be measured at long range using neutron detectors on low flying helicopters. Radiological survey measurements conducted at Government Wash in Las Vegas, Nevada, have shown that the neutron background from the cosmic-soil interactions is repeatable and directly correlated to the geological data. Government Wash has a very unique geology, spanning a wide variety of nuclide mixtures and formations. The results of the preliminary measurements are presented.

Richard Maurer

2008-09-18T23:59:59.000Z

252

Aerial Neutron Detection of Cosmic-Ray Interactions with the Earth's Surface  

SciTech Connect

We have demonstrated the ability to measure the neutron flux produced by the cosmic-ray interaction with nuclei in the ground surface using aerial neutron detection. High energy cosmic-rays (primarily muons with GeV energies) interact with the nuclei in the ground surface and produce energetic neutrons via spallation. At the air-surface interface, the neutrons produced by spallation will either scatter within the surface material, become thermalized and reabsorbed, or be emitted into the air. The mean free path of energetic neutrons in air can be hundreds of feet as opposed to a few feet in dense materials. As such, the flux of neutrons escaping into the air provides a measure of the surface nuclei composition. It has been demonstrated that this effect can be measured at long range using neutron detectors on low flying helicopters. Radiological survey measurements conducted at Government Wash in Las Vegas, Nevada, have shown that the neutron background from the cosmic-soil interactions is repeatable and directly correlated to the geological data. Government Wash has a very unique geology, spanning a wide variety of nuclide mixtures and formations. The results of the preliminary measurements are presented.

Richard Maurer

2008-09-18T23:59:59.000Z

253

Measurement of autonomous operation  

Science Conference Proceedings (OSTI)

While robotic systems and the field of Artificial Intelligence (AI) have been funded through the Department Of Defense (DoD) and Industry for decades, it was not until recent years that the combination of these two technologies has made truly significant ... Keywords: C4ISR, automated decision aid (ADA), autonomous control, autonomous operations, unmanned aerial system

W. Hamel

2010-09-01T23:59:59.000Z

254

Mapping Tropical Forest Trees Using High-Resolution Aerial Digital Photographs Carol X. Garzon-Lopez1,5  

E-Print Network (OSTI)

-scale tree distri- butions. At Barro Colorado Island, Panama, we used high-resolution aerial digital is available in the online version of this article. Key words: Barro Colorado Island; high-resolution aerialMapping Tropical Forest Trees Using High-Resolution Aerial Digital Photographs Carol X. Garzon

Bermingham, Eldredge

255

Wildlife Society Bulletin 2005, 33(1):317325 Peer edited Although widely used, aerial surveys of large  

E-Print Network (OSTI)

317 Wildlife Society Bulletin 2005, 33(1):317­325 Peer edited Although widely used, aerial surveys biases remained unsatisfactory, more recent approaches aim at correcting the bias. Bias in aerial surveys missed. Availability bias (Graham and Bell 1989, Marsh and From the Field: Testing 2 aerial survey

Laval, Université

256

Aerial surveying of the world's largest leatherback turtle rookery: A more effective methodology for large-scale monitoring  

E-Print Network (OSTI)

Aerial surveying of the world's largest leatherback turtle rookery: A more effective methodology are monitored in great detail by foot. In this study we use nationwide aerial surveying interfaced with ground­86%) of leatherback turtle activities recorded during aerial surveys (n = 8) occurred within protected areas (345 km

Exeter, University of

257

Comparisons of the NASA ER-2 Meteorological Measurement System with Radar Tracking and Radiosonde Data  

Science Conference Proceedings (OSTI)

Measurements of aircraft longitude, latitude, and velocity, and measurements of atmospheric pressure, temperature, and horizontal wind from the meteorological measurement system (MMS) on board the NASA ER-2 aircraft were compared with independent ...

Steven E. Gaines; Stuart W. Bowen; R. Stephen Hipskind; T. Paul Bui; K. Roland Chan

1992-06-01T23:59:59.000Z

258

A Relaxed Eddy Accumulation System for Measuring Surface Fluxes of Total Gaseous Mercury  

Science Conference Proceedings (OSTI)

A relaxed eddy accumulation (REA) system was designed to continuously measure total gaseous mercury (TGM) fluxes over a forest canopy. TGM concentration measurements were measured at 5-min intervals with a Tekran model 2537A mercury analyzer ...

Jesse O. Bash; David R. Miller

2008-02-01T23:59:59.000Z

259

Thermal soaring flight of birds and unmanned aerial vehicles  

E-Print Network (OSTI)

Thermal soaring saves much energy, but flying large distances in this form represents a great challenge for birds, people and Unmanned Aerial Vehicles (UAVs). The solution is to make use of so-called thermals, which are localized, warmer regions in the atmosphere moving upwards with a speed exceeding the descent rate of birds and planes. Saving energy by exploiting the environment more efficiently is an important possibility for autonomous UAVs as well. Successful control strategies have been developed recently for UAVs in simulations and in real applications. This paper first presents an overview of our knowledge of the soaring flight and strategy of birds, followed by a discussion of control strategies that have been developed for soaring UAVs both in simulations and applications on real platforms. To improve the accuracy of simulation of thermal exploitation strategies we propose a method to take into account the effect of turbulence. Finally we propose a new GPS independent control strategy for exploiting...

Ákos, Zsuzsa; Leven, Severin; Vicsek, Tamás; 10.1088/1748-3182/5/4/045003

2010-01-01T23:59:59.000Z

260

Intensity and position measuring systems in the booster of the Zero Gradient Synchrotorn  

SciTech Connect

Soon the new booster for the Zero Gradient Synchrotron (ZGS) will be commissioned at Argonne. Three of its diagnostic systems will be described here: (1) the beam position system, (2) the toroid intensity measuring system and (3) the capacitive intensity measuring system.

Brunwell, F.R.; Kliss, R.M.; Schmitt, D.R.

1977-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "aerial measuring system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

High Speed High Dynamic Range High Accuracy Measurement System  

Disclosure Number 201102747 Technology Summary The present invention measures a beam of protons that has a high dynamic range. Typically, one uses ...

262

An Evaluation of Calibration Techniques for In Situ Carbon Dioxide Measurements Using a Programmable Portable Trace-Gas Measuring System  

Science Conference Proceedings (OSTI)

The construction and deployment of a portable trace-gas measurement system (TGaMS) is described. The air-collection system (dubbed HYDRA) collects air samples from 18 different locations and was connected to either one or two LI-COR LI-7000 gas ...

Sean P. Burns; Anthony C. Delany; Jielun Sun; Britton B. Stephens; Steven P. Oncley; Gordon D. Maclean; Steven R. Semmer; Joel Schröter; Johannes Ruppert

2009-02-01T23:59:59.000Z

263

36Cl/Cl ratios in geothermal systems- preliminary measurements...  

Open Energy Info (EERE)

(1) Areas (1) Regions (0) Abstract: The sub 36ClCl isotopic composition of chlorine in geothermal systems can be a useful diagnostic tool in characterizing hydrologic...

264

Ellipsometric Measurement of Contamination in an Oil Pumped uhv System  

Science Conference Proceedings (OSTI)

Determinations have been made of oil contamination on a surface in an oil pumped uhv system for DC702 and DC705 oil

R. M. Rollason; R. W. Fane; W. E. J. Neal

1972-01-01T23:59:59.000Z

265

Vacuum-Based Time-Resolved Photoluminescence Measurement System...  

NLE Websites -- All DOE Office Websites (Extended Search)

This system enables the simulation of conditions in a thin-film photovoltaic (PV) manufacturing line. NREL's work in recent years has demonstrated a clear correlation...

266

Semi-automatic system for ultrasonic measurement of texture  

DOE Patents (OSTI)

A means and method are disclosed for ultrasonic measurement of texture nondestructively and efficiently. Texture characteristics are derived by transmitting ultrasound energy into the material, measuring the time it takes to be received by ultrasound receiving means, and calculating velocity of the ultrasound energy from the timed measurements. Textured characteristics can then be derived from the velocity calculations. One or more sets of ultrasound transmitters and receivers are utilized to derive velocity measurements in different angular orientations through the material and in different ultrasound modes. An ultrasound transmitter is utilized to direct ultrasound energy to the material and one or more ultrasound receivers are utilized to receive the same. The receivers are at a predetermined fixed distance from the transmitter. A control means is utilized to control transmission of the ultrasound, and a processing means derives timing, calculation of velocity and derivation of texture characteristics. 5 figures.

Thompson, R.B.; Wormley, S.J.

1991-09-17T23:59:59.000Z

267

The Extreme Benchmark Suite : measuring high-performance embedded systems  

E-Print Network (OSTI)

The Extreme Benchmark Suite (XBS) is designed to support performance measurement of highly parallel "extreme" processors, many of which are designed to replace custom hardware implementations. XBS is designed to avoid many ...

Gerding, Steven (Steven Bradley)

2005-01-01T23:59:59.000Z

268

New Real-Time Quantum Efficiency Measurement System: Preprint  

DOE Green Energy (OSTI)

This paper describes a newly developed technique for measuring the quantum eficiiency in solar cells in real-time using a unique, electronically controlled, full-spectrum light source.

Young, D. L.; Egaas, B.; Pinegar, S.; Stradins, P.

2008-05-01T23:59:59.000Z

269

A field measurement system for the study of thermal comfort  

E-Print Network (OSTI)

metal screen. A platinum RTD measured air sors usedin theAir Temperature platinum RTD IVlEASURENIENT ACCURACY,Surface Temperature platinum RTD M: 06 m N/A N/A -+ 0 5°C

Benton, C.; Bauman, Fred; Fountain, M.

1990-01-01T23:59:59.000Z

270

Measuring long-term location privacy in vehicular communication systems  

Science Conference Proceedings (OSTI)

Vehicular communication systems are an emerging form of communication that enables new ways of cooperation among vehicles, traffic operators, and service providers. However, many vehicular applications rely on continuous and detailed location information ... Keywords: Accumulated information, Entropy, Location privacy, Metric, Vehicular communication systems

Zhendong Ma; Frank Kargl; Michael Weber

2010-07-01T23:59:59.000Z

271

Measurement of Power System Magnetic Fields by Waveform Capture  

Science Conference Proceedings (OSTI)

An instrumentation and software package has been developed to characterize an extensive range of temporal, spatial, and frequency parameters associated with magnetic fields.The MultiWave (TM) System can capture the actual magnetic field waveform and coexisting power system environmental conditions in residential, nonresidential, and transient capture applications.

1992-03-01T23:59:59.000Z

272

An expert system for analyzing eddy current measurements  

DOE Patents (OSTI)

A method and apparatus (called DODGER) analyzes eddy current data for heat exchanger tubes or any other metallic object. DODGER uses an expert system to analyze eddy current data by reasoning with uncertainty and pattern recognition. The expert system permits, DODGER to analyze eddy current data intelligently, an obviate operator uncertainty by analyzing the data in a uniform and consistent manner.

Levy, A.J.; Oppenlander, J.E.; Brudnoy, D.M.; Englund, J.M.; Loomis, K.C.

1991-12-31T23:59:59.000Z

273

Active spectroscopic measurements using the ITER diagnostic system  

SciTech Connect

Active (beam-based) spectroscopic measurements are intended to provide a number of crucial parameters for the ITER device being built in Cadarache, France. These measurements include the determination of impurity ion temperatures, absolute densities, and velocity profiles, as well as the determination of the plasma current density profile. Because ITER will be the first experiment to study long timescale ({approx}1 h) fusion burn plasmas, of particular interest is the ability to study the profile of the thermalized helium ash resulting from the slowing down and confinement of the fusion alphas. These measurements will utilize both the 1 MeV heating neutral beams and a dedicated 100 keV hydrogen diagnostic neutral beam. A number of separate instruments are being designed and built by several of the ITER partners to meet the different spectroscopic measurement needs and to provide the maximum physics information. In this paper, we describe the planned measurements, the intended diagnostic ensemble, and we will discuss specific physics and engineering challenges for these measurements in ITER.

Thomas, D. M. [ITER Organization, 13067 St. Paul-lez-Durance Cedex (France); Counsell, G. [Fusion for Energy, 08019 Barcelona (Spain); Johnson, D. [US ITER Project Office, Oak Ridge, Tennessee 37830 (United States); Vasu, P. [Institute for Plasma Research, Bhat, Gandhinagar 382428 (India); Zvonkov, A. [Russian Research Center ''Kurchatov Institute'', Moscow 123182 (Russian Federation)

2010-10-15T23:59:59.000Z

274

To Design, Build and Test a Wireless Measurement System for Machine Rotor  

Science Conference Proceedings (OSTI)

A wireless measurement system was designed to detect the rotor current of an induction machine. The reason of using wireless technique instead of wire is that it is difficult to connect measured components with wire directly from the rotor which is running ... Keywords: wireless measurement system, machine rotor

Jieyin Zhang; Minxia Zhang

2009-03-01T23:59:59.000Z

275

Measuring moment of inertia based on identification of nonlinear system featuring naught excitation  

Science Conference Proceedings (OSTI)

For large ammunitions and spacecrafts, friction moment and air resistance are major error resources in measuring moment of inertia (MOI). The paper proposes a novel measurement method based on compound pendulum, in which the whole measurement is considered ... Keywords: Naught excitation, air resistance, compound pendulum, friction moment, moment of inertia, nonlinear system, system identification

Wen Hou

2006-04-01T23:59:59.000Z

276

System Energy Assessment (SEA), Defining a Standard Measure of EROI for Energy Businesses as Whole Systems  

E-Print Network (OSTI)

A more objective method for measuring the energy needs of businesses, System Energy Assessment (SEA), identifies the natural boundaries of businesses as self-managing net-energy systems, of controlled and self-managing parts. The method is demonstrated using a model Wind Farm case study, and applied to defining a true physical measure of its energy productivity for society (EROI-S), the global ratio of energy produced to energy cost. The traceable needs of business technology are combined with assignable energy needs for all other operating services. That serves to correct a large natural gap in energy use information. Current methods count traceable energy receipts for technology use. Self-managing services employed by businesses outsource their own energy needs to operate, and leave no records to trace. Those uncounted energy demands are often 80% of the total embodied energy of business end products. The scale of this "dark energy" was discovered from differing global accounts, and corrected so the average...

Henshaw, Philip F; Zarnikau, Jay

2011-01-01T23:59:59.000Z

277

Estimation of Horizontal Diffusion from Oblique Aerial Photographs of Smoke Clouds  

Science Conference Proceedings (OSTI)

A photogrammetric method is described for obtaining estimates of the horizontal diffusion parameter ?y from oblique aerial photographs of smoke clouds. The method requires three reference markers on the ground to determine the geometry in each ...

Richard M. Eckman; Torben Mikkelsen

1991-12-01T23:59:59.000Z

278

An Attempt To Use Aerial Gamma-Ray Spectrometry Results In Petrochemical  

Open Energy Info (EERE)

Attempt To Use Aerial Gamma-Ray Spectrometry Results In Petrochemical Attempt To Use Aerial Gamma-Ray Spectrometry Results In Petrochemical Assessments Of The Volcanic And Plutonic Associations Of Central Anatolia (Turkey) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: An Attempt To Use Aerial Gamma-Ray Spectrometry Results In Petrochemical Assessments Of The Volcanic And Plutonic Associations Of Central Anatolia (Turkey) Details Activities (0) Areas (0) Regions (0) Abstract: Volcanic and magmatic rocks of Central Anatolia are fairly rich in radioelement concentrations. The aerial gamma-ray spectrometric survey data, gathered for the purpose of radioactive mineral exploration were utilized as an additional tool for the petrochemical classification of the volcanic and magmatics rocks and their environments. The survey data on

279

The enclosed file contains aerial radiological data that was collected with a fi  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

enclosed file contains aerial radiological data that was collected with a fixed-wing aircraft (C-12) off enclosed file contains aerial radiological data that was collected with a fixed-wing aircraft (C-12) off of the east coast of Japan on three separate flights dated April 5, 2011, April 18, 2011, and May 9, 2011. Please note that the normal analysis of aerial radiological data assumes that the material is deposited on the ground and is not constantly moving. Therefore, this data set differs from previously posted aerial data in that the data must be viewed as three separate "snapshots" of the radiological signature from the ocean on these three dates, and NOT as one contiguous data set or flow pattern of the same deposition taken on different dates. Further, the vertical profile of the material is more ambiguous for over-sea data than for terrestrial data.

280

Learning Scene Categories from High Resolution Satellite Image for Aerial Video Analysis  

SciTech Connect

Automatic scene categorization can benefit various aerial video processing applications. This paper addresses the problem of predicting the scene category from aerial video frames using a prior model learned from satellite imagery. We show that local and global features in the form of line statistics and 2-D power spectrum parameters respectively can characterize the aerial scene well. The line feature statistics and spatial frequency parameters are useful cues to distinguish between different urban scene categories. We learn the scene prediction model from highresolution satellite imagery to test the model on the Columbus Surrogate Unmanned Aerial Vehicle (CSUAV) dataset ollected by high-altitude wide area UAV sensor platform. e compare the proposed features with the popular Scale nvariant Feature Transform (SIFT) features. Our experimental results show that proposed approach outperforms te SIFT model when the training and testing are conducted n disparate data sources.

Cheriyadat, Anil M [ORNL

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "aerial measuring system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Measuring space systems flexibility : a comprehensive six-element framework  

E-Print Network (OSTI)

Space systems are extremely delicate and costly engineering artifacts that take a long time to design, manufacture, and launch into space and after they are launched, there is limited access to them. Millions of dollars ...

Nilchiani, Roshanak

2005-01-01T23:59:59.000Z

282

Measurement of Battery Capacity in Mobile Robot Systems  

E-Print Network (OSTI)

With battery driven robot systems performing very sophisticated tasks, increasing demands on the power supply play a critical role. Operation breakdowns are unpredictable unless the state of the battery is known, and the overall performance should be adjusted according to reliable remaining capacity estimations. This paper addresses many of the issues related to the management and monitoring of battery packs for mobile robots, whereas an implementation for a particular system is presented.

Nestor Lucas; Cosmin Codrea; Thomas Hirth; Javier Gutierrez; Falko Dressler

2005-01-01T23:59:59.000Z

283

Method of detecting system function by measuring frequency response  

Science Conference Proceedings (OSTI)

Methods of rapidly measuring an impedance spectrum of an energy storage device in-situ over a limited number of logarithmically distributed frequencies are described. An energy storage device is excited with a known input signal, and a response is measured to ascertain the impedance spectrum. An excitation signal is a limited time duration sum-of-sines consisting of a select number of frequencies. In one embodiment, magnitude and phase of each frequency of interest within the sum-of-sines is identified when the selected frequencies and sample rate are logarithmic integer steps greater than two. This technique requires a measurement with a duration of one period of the lowest frequency. In another embodiment, where selected frequencies are distributed in octave steps, the impedance spectrum can be determined using a captured time record that is reduced to a half-period of the lowest frequency.

Morrison, John L.; Morrison, William H.; Christophersen, Jon P.; Motloch, Chester G.

2013-01-08T23:59:59.000Z

284

Measured Performance of Energy-Efficient Computer Systems  

E-Print Network (OSTI)

The intent of this study is to explore the potential performance of both Energy Star computers/printers and add-on control devices individually, and their expected savings if collectively applied in a typical office building in a hot and humid climate. Recent surveys have shown that the use of personal computer systems in commercial office buildings is expanding rapidly. The energy consumption of such a growing end-use also has a significant impact on the total building power demand. In warmer climates, office equipment energy use has important implications for building cooling loads as well as those directly associated with computing tasks. Recently, the Environmental Protection Agency (EPA) has developed an Energy Star (ES) rating system intended to endorse more efficient equipment. To research the comparative performance of conventional and low-energy computer systems, four Energy Star computer systems and two computer systems equipped with energy saving devices were monitored for power demand. Comparative data on the test results are summarized. In addition, a brief analysis uses the DOE-2.1E computer simulation to examine the impact of the test results and HVAC interactions if generically applied to computer systems in a modern office building in Florida's climate.

Floyd, D. B.; Parker, D. S.

1996-01-01T23:59:59.000Z

285

Field Guide: Transmission Line Aerial Marking and Lighting (Optimized for Electronic Viewing)  

Science Conference Proceedings (OSTI)

Various types of aerial marking and lighting are applied to transmission structures and wires as a safety enhancement to improve the visibility of structures and lines. This EPRI report, one in a series of practical guides designed as reference aids for utility personnel working in the field, is devoted to the subject of transmission line aerial marking and lighting, with an emphasis on inspection.This field guide has been optimized for viewing on electronic devices. For a standard PDF ...

2011-12-09T23:59:59.000Z

286

Field Guide: Transmission Line Aerial Marking and Lighting (Hard Copy and Standard PDF)  

Science Conference Proceedings (OSTI)

Various types of aerial marking and lighting are applied to transmission structures and wires as a safety enhancement to improve the visibility of structures and lines. This EPRI report, one in a series of practical guides designed as reference aids for utility personnel working in the field, is devoted to the subject of transmission line aerial marking and lighting, with an emphasis on inspection. The pocket-sized, ring-bound guide is printed in color on high-quality paper. ...

2012-11-09T23:59:59.000Z

287

Aerial radiological surveys of Steed Pond, Savannah River Site: Dates of surveys, 1984--1989  

Science Conference Proceedings (OSTI)

From June 1984 to August 1985, three aerial radiological surveys were conducted over Steed Pond at the Savannah River Site in South Carolina. In addition, Steed Pond was included in larger-area surveys of the Savannah River Site in subsequent years. The surveys were conducted by the Remote Sensing Laboratory of EG&G Energy Measurements, Inc., Las Vegas, Nevada, for the US Department of Energy. Airborne measurements were obtained for both natural and man-made gamma radiation over Steed Pond and surrounding areas. The first survey was conducted when the pond was filled to normal capacity for the time of the year. On September 1, 1984, the Steed Pond dam spillway failed causing the pond to drain. The four subsequent surveys were conducted with the pond drained. The second survey and the third were conducted to study silt deposits exposed by the drop in water level after the spillway`s opening. Steed Pond data from the February 1987 and April 1989 Savannah River Site surveys have been included to bring this study up to date.

Fritzsche, A.E.; Jobst, J.E.

1993-09-01T23:59:59.000Z

288

Raytheon downhole information system. Electromagnetic borehole measurements while drilling system. Final report  

DOE Green Energy (OSTI)

A description is given of the Raytheon Downhole Information System (RDIS), a real time electromagnetic borehole measurements while drilling system, applicable to oil, gas, and geothermal drilling. It communicates in both directions through the earth in a single hop at a downlink data rate of 3 bps and uplink rates dependent on depth--typically 6 bits/second at 10,000 ft and 2 bits/second at 15,000 ft; electromagnetic signal transmission time of approximately .1 second. Downhole hardware for communications, sensors, and power are packaged in three 30 ft subs. Downhole hardware can be developed to permit operation in a 275/sup 0/C geothermal environment. A cost analysis is included that predicts RDIS service could be economically priced at approximately $1000/day. Commercial availability depends primarily on proof of capability by demonstration in a working drilling well. The most significant portions of needed hardware are available. A description of a geothermal drilling telemetry system is included in Appendix A.

Kolker, M.; Greene, A.H.; Kasevich, R.S.; Robertson, J.C.; Grossi, M.D.

1978-03-01T23:59:59.000Z

289

Measurement system for metal-oxide gas sensors  

Science Conference Proceedings (OSTI)

A study on smell sensing and classification has been developed for a long time by many ways. Most of these have been focused on bad smells, when factors of bad smells were known chemically. Many gas sensors have been developed to detect specific chemicals. ... Keywords: Metal-oxide gas sensor, Multi-channel sensors, Smell measurement

Hideo Araki; Sigeru Omatu

2013-02-01T23:59:59.000Z

290

The Java-Sumatra Aerial Mega-Tramway  

E-Print Network (OSTI)

A mega-tramway based on the Indonesian islands of Sumatra and Java is proposed to span Sunda Strait. The Java-Sumatra Aerial Mega-Tramway (JSAMT) will be self-elevating and will regularly and cheaply launch passengers and cargoes via two conveyor belt-like facilities using standard winged shipping containers like those currently used by international trucking and ocean shipping industries that are volplaned across the Sunda Strait. The JSAMT will be a self-sustaining toll facility free of any requirement for international loans or funding guarantees for its construction. Its existence will remove any immediate need for an expensive to dig/maintain Nusantara Tunnel. We offer the formative basic technical specifications for the JSAMT and indicate some of the physical and cultural geographical facts underpinning our macro-engineering proposal; offshoots of a perfected and tested JSAMT may be installed at Palk Strait between India and Sri Lanka, the Gibraltar Strait and the Bering Strait by mid-21st Century.

Alexander Bolonkin; Richard Cathcart

2007-01-09T23:59:59.000Z

291

Measure of tripartite entanglement in bosonic and fermionic systems  

SciTech Connect

We describe an efficient theoretical criterion suitable for the evaluation of the tripartite entanglement of any mixed three-boson or three-fermion state, based on the notion of the entanglement of particles for bipartite systems of identical particles. Our approach allows one to quantify the accessible number of quantum correlations in the systems without any violation of the local particle number superselection rule. A generalization of the tripartite negativity is here applied to some correlated systems including the continuous-time quantum walks of identical particles (for both bosons and fermions) and compared with other criteria recently proposed in the literature. Our results show the dependence of the entanglement dynamics upon the quantum statistics: The bosonic bunching results in a low number of quantum correlations while Fermi-Dirac statistics allows for higher values of the entanglement.

Buscemi, Fabrizio [Dipartimento di Elettronica, Informatica, e Sistemi, Universita di Bologna, Viale Risorgimento 2, I-40136 Bologna (Italy); ARCES, Alma Mater Studiorum, Universita di Bologna, Via Toffano 2/2, I-40125 Bologna (Italy); Bordone, Paolo [Dipartimento di Fisica, Universita di Modena e Reggio Emilia, I-41125 Modena (Italy); Centro S3, CNR-Istituto di Nanoscienze, Via Campi 213/A, I-41125 Modena (Italy)

2011-08-15T23:59:59.000Z

292

An aerial radiological survey of the Oak Ridge Reservation, Oak Ridge, Tennessee. Date of survey: April 1992  

Science Conference Proceedings (OSTI)

An aerial radiological survey of the Oak Ridge Reservation (ORR) and surrounding area in Oak Ridge, Tennessee, was conducted during the period March 30 to April 14,1992. The purpose of the survey was to measure and document the terrestrial radiological environment of the Oak Ridge Reservation for use in environmental management programs and emergency response planning. The aerial survey was flown at an altitude of 150 feet (46 meters) along a series of parallel lines 250 feet (76 meters) apart and included X-10 (Oak Ridge National Laboratory), K-25 (former Gaseous Diffusion Plant), Y-12 (Weapons Production Plant), the Freels Bend Area and Oak Ridge Institute for Science and Education, the East Fork Poplar Creek (100-year floodplain extending from K-25 to Y-12), Elza Gate (former uranium ore storage site located in the city of Oak Ridge), Parcel A, the Clinch River (river banks extending from Melton Hill Dam to the city of Kingston), and the CSX Railroad Tracks (extending from Y-12 to the city of Oak Ridge). The survey encompassed approximately 55 square miles (1 41 square kilometers) of the Oak Ridge Reservation and surrounding area.

Maurer, R.J.

1993-04-01T23:59:59.000Z

293

Standards applicable to performance measurement of solar heating and cooling systems  

DOE Green Energy (OSTI)

The advantage of the utilization of existing standards in the performance monitoring of solar heating and cooling systems is discussed. Existing applicable measurement standards and practices are listed.

Lior, N.

1978-01-01T23:59:59.000Z

294

In situ measurement of lattice strain using synchrotron radiation and a conical slit system.  

E-Print Network (OSTI)

??An experiment utilizing synchrotron radiation to measure lattice strain components from an aluminum-lithium sample during tensile loading is presented in detail. The conical slit system… (more)

Obstalecki, Mark

2011-01-01T23:59:59.000Z

295

Review: Sensor systems for measuring soil compaction: Review and analysis  

Science Conference Proceedings (OSTI)

Spatially variable soil compaction often causes inconsistent growing conditions in many fields. Various soil compaction sensor systems have been deployed to obtain georeferenced maps of certain state and behavioral properties (e.g., soil strength, water ... Keywords: Air permeability, Penetrometer, Sensor fusion, Soil compaction, Soil mechanical resistance, Soil mechanics, Water content

A. Hemmat; V. I. Adamchuk

2008-10-01T23:59:59.000Z

296

Measured Performance of California Buydown Program Residential PV Systems  

E-Print Network (OSTI)

, on average, 62 percent of nominal DC module size. For non-tracking systems, average annual energy production annual energy production per unit of nominal DC module size is approximately 1,100 kWh/year. Both Economic Research, Inc. Sanford Miller, California Energy Commission ABSTRACT More than two thousand small

297

Method of measuring heat influx of a cryogenic transfer system. [Patent application  

DOE Patents (OSTI)

A method is provided for measuring the heat influx of a cryogenic transfer system. A gaseous phase of the cryogen used during normal operation of the system is passed through the system. The gaseous cryogen at the inlet to the system is tempered to duplicate the normal operating temperature of the system inlet. The temperature and mass flow rate of the gaseous cryogen is measured at the outlet of the system, and the heat capacity of the cryogen is determined. The heat influx of the system is then determined from known thermodynamic relationships.

Niemann, R.C.; Zelipsky, S.A.; Rezmer, R.R.; Smelser, P.

1980-10-29T23:59:59.000Z

298

A Multichannel Cloud Pyranometer System for Airborne Measurement of Solar Spectral Reflectance by Clouds  

Science Conference Proceedings (OSTI)

The design and performance of a spectral radiometer system are described for airborne measurements of solar flux reflectance by clouds. The system consists of a pair of identical multichannel pyranometers: one installed on the top and the other ...

Shoji Asano; Masataka Shiobara; Yuji Nakanishi; Yukiharu Miyake

1995-06-01T23:59:59.000Z

299

Performance measures framework for unmanned systems (PerMFUS): models for contextual metrics  

Science Conference Proceedings (OSTI)

In the development of the Performance Measures Framework for Unmanned Systems (PerMFUS), we have established a multiple-axis performance metrics model for the unmanned systems (UMS). This model characterizes the UMS performance requirements by the missions ... Keywords: ALFUS, HSI, UMS, autonomy, collaboration, communication, contextual autonomy, contextual metrics, energy, environment, goal, human-system interaction, measure, metrics, mission, mobility, perception, performance, power, robot, sensing, task, terminology, test, unmanned system

Hui-Min Huang; Elena Messina; Adam Jacoff; Robert Wade; Michael McNair

2010-09-01T23:59:59.000Z

300

Measurements of fast electron scaling generated by petawatt laser systems  

Science Conference Proceedings (OSTI)

Fast electron energy spectra have been measured for a range of intensities between 10{sup 18} and 10{sup 21} W cm{sup -2} and for different target materials using electron spectrometers. Several experimental campaigns were conducted on petawatt laser facilities at the Rutherford Appleton Laboratory and Osaka University, where the pulse duration was varied from 0.5 to 5 ps relevant to upcoming fast ignition integral experiments. The incident angle was also changed from normal incidence to 40 deg. in p-polarized. The results confirm a reduction from the ponderomotive potential energy on fast electrons at the higher intensities under the wide range of different irradiation conditions.

Tanimoto, Tsuyoshi; Habara, H.; Kodama, R.; Nakatsutsumi, M.; Tanaka, Kazuo A. [Graduate School of Engineering and Institute of Laser Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871 (Japan); Lancaster, K. L.; Green, J. S. [STFC Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0QX (United Kingdom); Scott, R. H. H.; Sherlock, M.; Norreys, Peter A. [STFC Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0QX (United Kingdom); Department of Physics, Blackett Laboratory, Imperial College London, Prince Consort Road, London SW7 2BZ (United Kingdom); Evans, R. G.; Haines, M. G. [Department of Physics, Blackett Laboratory, Imperial College London, Prince Consort Road, London SW7 2BZ (United Kingdom); Kar, S.; Zepf, M. [Centre for Plasma Physics, School of Mathematics and Physics, Queens University Belfast, University Road, Belfast BT7 1NN (United Kingdom); King, J.; Ma, T.; Wei, M. S.; Yabuuchi, T.; Beg, F. N. [Department of Mechanical and Aerospace Engineering, University of California-San Diego, 9500 Gillman Drive 0411, La Jolla, California 92093-0411 (United States); Key, M. H. [Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94550 (United States)] (and others)

2009-06-15T23:59:59.000Z

Note: This page contains sample records for the topic "aerial measuring system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Brief paper: Global trajectory tracking control of VTOL-UAVs without linear velocity measurements  

Science Conference Proceedings (OSTI)

This paper deals with the position control of Vertical Take-Off and Landing (VTOL) Unmanned Aerial Vehicles (UAVs) without linear velocity measurements. We propose a multistage constructive procedure, exploiting the cascade property of the translational ... Keywords: Linear-velocity observer, Trajectory tracking, Unmanned Aerial Vehicles

Abdelkader Abdessameud; Abdelhamid Tayebi

2010-06-01T23:59:59.000Z

302

System Performance Measurement Supports Design Recommendations for Solar Ventilation Preheat System (Brochure), Federal Energy Management Program (FEMP)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

System Performance System Performance Measurement Supports Design Recommendations for Solar Ventilation Preheat System The U.S. Department of Energy's (DOE) Federal Energy Management Program (FEMP) sponsored the installation of a data monitoring system to analyze the efficiency and performance of a large solar ventilation preheat (SVP) system. The system was installed at a Federal installation to reduce energy consumption and costs and to help meet Federal energy goals and mandates. SVP systems draw ventilation air in through a perforated metal solar collector with a dark color on the south side of a build-

303

An aerial radiological survey of the Babcock and Wilcox Nuclear Facilities and surrounding area, Lynchburg, Virginia. Date of survey: July 1988  

SciTech Connect

An aerial radiological survey was conducted from July 18 through July 25, 1988, over a 41-square-kilometer (16-square-mile) area surrounding the Babcock and Wilcox nuclear facilities located near Lynchburg, Virginia. The survey was conducted at a nominal altitude of 61 meters (200 feet) with line spacings of 91 meters (300 feet). A contour map of the terrestrial gamma exposure rate extrapolated to 1 meter above ground level (AGL) was prepared and overlaid on an aerial photograph. The terrestrial exposure rates varied from 8 to 12 microroentgens per hour ({mu}R/h). A search of the data for man-made radiation sources revealed the presence of three areas of high count rates in the survey area. Spectra accumulated over the main plant showed the presence of cobalt-60 ({sup 60}Co) and cesium-137 ({sup 137}Cs). A second area near the main plant indicated the presence of uranium-235 ({sup 235}U). Protactinium-234m ({sup 234m}Pa) and {sup 60}Co were detected over a building to the east of the main plant. Soil samples and pressurized ion chamber measurements were obtained at four locations within the survey boundaries in support of the aerial data.

Guss, P.P.

1993-04-01T23:59:59.000Z

304

The Extreme Benchmark Suite: Measuring High-Performance Embedded Systems  

E-Print Network (OSTI)

The Extreme Benchmark Suite (XBS) is designed to support performance measurement of highly parallel “extreme ” processors, many of which are designed to replace custom hardware implementations. XBS is designed to avoid many of the problems that occur when using existing benchmark suites with nonstandard and experimental architectures. In particular, XBS is intended to provide a fair comparison of a wide range of architectures, from general-purpose processors to hard-wired ASIC implementations. XBS has a clean modular structure to reduce porting effort, and is designed to be usable with slow cycle-accurate simulators. This work presents the motivation for the creation of XBS and describes in detail the XBS framework. Several benchmarks implemented with this framework are discussed, and these benchmarks are used to compare a standard platform, an experimental architecture, and custom

Steven Gerding; Krste Asanovi?

2005-01-01T23:59:59.000Z

305

Beam emission imaging system for 2D plasma turbulence measurements  

SciTech Connect

A two-dimensional analog to the beam emission spectroscopy (BES) diagnostic has been designed to acquire vorticity and plasma flow-field information by resolving the spatial and temporal intermittency of plasma turbulent structures. The beam emission imaging diagnostic measures collisionally induced neutral beam fluorescence to infer local plasma density variations. It consists of a high-throughput, interline-transfer CCD camera viewing, with narrow spectral bandwidth, a 10 cm high diagnostic neutral beam as it traverses the plasma. The camera is coupled to a gated image intensifier that provides for two images with exposure times up to a few ms to be separated by as little as 10 [mu]s. Sensitivity to density fluctuations of [ital [tilde n

Thorson, T.A.; Durst, R.D.; Fonck, R.J. (Department of Nuclear Engineering and Engineering Physics, University of Wisconsin, Madison, Wisconsin 53706 (United States))

1995-01-01T23:59:59.000Z

306

Improving Control System Cyber-State Awareness using Known Secure Sensor Measurements  

SciTech Connect

Abstract—This paper presents design and simulation of a low cost and low false alarm rate method for improved cyber-state awareness of critical control systems - the Known Secure Sensor Measurements (KSSM) method. The KSSM concept relies on physical measurements to detect malicious falsification of the control systems state. The KSSM method can be incrementally integrated with already installed control systems for enhanced resilience. This paper reviews the previously developed theoretical KSSM concept and then describes a simulation of the KSSM system. A simulated control system network is integrated with the KSSM components. The effectiveness of detection of various intrusion scenarios is demonstrated on several control system network topologies.

Ondrej Linda; Milos Manic; Miles McQueen

2012-09-01T23:59:59.000Z

307

Design of a triaxial residual stress measurement system using high energy x-ray diffraction  

Science Conference Proceedings (OSTI)

Previous design studies in developing concepts for residual stress measurement in engineering materials have been extended. A pre-prototype energy dispersive x-ray diffraction (EDXRD) system has been fabricated. A 300 kV radiography source is used in conjunction with an intrinsic germanium detector and a MacII/LabVIEW data acquisition system. Specimens up to 25mm equivalent steel thickness (and one meter gross dimensions) can now be evaluated. The pre-prototype system serves as the hard x-ray, bulk stress measurement component of the previously reported hybrid stress measuring system (which would include a traditional multi-angle surface measurement system using soft x-rays). In addition, a detailed study of residual stress analytical equations has been completed and applied to various metallic and ceramic materials. During the grant period, related studies were completed on stress measurement using synchrotron radiation and on a critical review of the residual stress literature. 6 refs., 3 figs.

Shackelford, J.F.; Brown, B.D.; Park, J.S.

1989-01-01T23:59:59.000Z

308

Measurement of Beam Tunes in the Tevatron Using the BBQ System  

Science Conference Proceedings (OSTI)

Measuring the betatron tunes in any synchrotron is of critical importance to ensuring the stability of beam in the synchrotron. The Base Band Tune, or BBQ, measurement system was developed by Marek Gasior of CERN and has been installed at Brookhaven and Fermilab as a part of the LHC Accelerator Research Program, or LARP. The BBQ was installed in the Tevatron to evaluate its effectiveness at reading proton and antiproton tunes at its flattop energy of 980 GeV. The primary objectives of this thesis are to examine the methods used to measure the tune using the BBQ tune measurement system, to incorporate the system into the Fermilab accelerator controls system, ACNET, and to compare the BBQ to existing tune measurement systems in the Tevatron.

Edstrom, Dean R.; /Indiana U.

2009-04-01T23:59:59.000Z

309

Use of Distance-measuring Equipment (DME) for Correcting Errors in Position, Velocity, and Wind Measurements from Aircraft Inertial Navigation Systems  

Science Conference Proceedings (OSTI)

Aircraft distance-measuring-equipment (DME) data are used to update position, velocity, and wind measurements from inertial navigation systems (INS) measurements. Data from conventional single-channel DME sets, suitably calibrated, are shown to ...

Alfred R. Rodi; James C. Fankhauser; Robin L. Vaughan

1991-12-01T23:59:59.000Z

310

Hydrated and Dried Aerosol-Size-Distribution Measurements from the Particle Measuring Systems FSSP-300 Probe and the Deiced PCASP-100X Probe  

Science Conference Proceedings (OSTI)

Comparisons of particle-size distributions measured by Particle Measuring Systems FSSP-300 and PCASP-100X probes through a range of relative humidities reveal that the deiced PCASP-100X probe dries hydrated submicron aerosols before measurement. ...

J. Walter Strapp; W. R. Leaitch; P. S. K. Liu

1992-10-01T23:59:59.000Z

311

System Performance Measurement Supports Design Recommendations for Solar Ventilation Preheat System (Brochure)  

DOE Green Energy (OSTI)

Technical briefing to report the outcomes of a data monitoring effort to determine the nature of solar vent preheat system performance problems at a U.S. military installation. The analysis reports up-to-date research and findings regarding system design, helping to clarify the issue as a factor of system design, rather than a shortcoming of SVP systems.

Not Available

2011-08-01T23:59:59.000Z

312

Integrated Ocean Skin and Bulk Temperature Measurements Using the Calibrated Infrared In Situ Measurement System (CIRIMS) and Through-Hull Ports  

Science Conference Proceedings (OSTI)

The design and performance of a shipboard-integrated system for underway skin and bulk temperature is presented. The system consists of the Calibrated Infrared In situ Measurement System (CIRIMS) and through-hull temperature sensors. The CIRIMS ...

A. T. Jessup; R. Branch

2008-04-01T23:59:59.000Z

313

The future of GPS-based electric power system measurements, operation and control  

Science Conference Proceedings (OSTI)

Much of modern society is powered by inexpensive and reliable electricity delivered by a complex and elaborate electric power network. Electrical utilities are currently using the Global Positioning System-NAVSTAR (GPS) timekeeping to improve the network`s reliability. Currently, GPS synchronizes the clocks on dynamic recorders and aids in post-mortem analysis of network disturbances. Two major projects have demonstrated the use of GPS-synchronized power system measurements. In 1992, the Electric Power Research Institute`s (EPRI) sponsored Phase Measurements Project used a commercially available Phasor Measurements Unit (PMU) to collect GPS-synchronized measurements for analyzing power system problems. In 1995, Bonneville Power Administration (BPA) and Western Area Power Administration (WAPA) under DOE`s and EPRI`s sponsorship launched the Wide Area Measurements (WAMS) project. WAMS demonstrated GPS-synchronized measurements over a large area of their power networks and demonstrated the networking of GPS-based measurement systems in BPA and WAPA. The phasor measurement technology has also been used to conduct dynamic power system tests. During these tests, a large dynamic resistor was inserted to simulate a small power system disturbance.

Rizy, D.T. [Oak Ridge National Lab., TN (United States); Wilson, R.E. [Western Area Power Administration, Golden, CO (United States); Martin, K.E.; Litzenberger, W.H. [Bonneville Power Administration, Portland, OR (United States); Hauer, J.F. [Pacific Northwest National Lab., Richland, WA (United States); Overholt, P.N. [Dept. of Energy, Washington, DC (United States); Sobajic, D.J. [Electric Power Research Inst., Palo Alto, CA (United States)

1998-11-01T23:59:59.000Z

314

36Cl/Cl ratios in geothermal systems- preliminary measurements from the  

Open Energy Info (EERE)

Cl/Cl ratios in geothermal systems- preliminary measurements from the Cl/Cl ratios in geothermal systems- preliminary measurements from the Coso Field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: 36Cl/Cl ratios in geothermal systems- preliminary measurements from the Coso Field Details Activities (1) Areas (1) Regions (0) Abstract: The {sub 36}Cl/Cl isotopic composition of chlorine in geothermal systems can be a useful diagnostic tool in characterizing hydrologic structure, in determining the origins and age of waters within the systems, and in differentiating the sources of chlorine (and other solutes) in the thermal waters. The {sub 36}Cl/Cl values for several geothermal water samples and reservoir host rock samples from the Coso, California geothermal field have been measured for these purposes. The results

315

Use of SNMP in the Management of Electrical Energy Measuring Systems  

E-Print Network (OSTI)

The conventional measuring systems face imprecision and inefficient problems. Imprecision because measurements done by a human being can be imperfect. Inefficient because it's difficult to control a whole complex net like the electrical energy distribution only with a large group of people. The automatic measuring systems are an alternative to the conventional systems as a way to provide a better quality of service. So it's necessary an effective management on the measuring net components. Aspects like prevention of failures in devices until consumption readings are considered in the choice of a management protocol. SNMP is an efficient and simple alternative and its use in SALAME system (Electrical Energy Remote Measuring System) validates this subject. We show the facility of the information treatment like polling of the devices, control of communication errors, remote control of the devices and information to the consumers in the management station of SALAME system with the use of SNMP. In this article we accentuate the facility and importance of this subject to the remote measuring system management and its implementation in a real system.

Gustavo Wagner Diniz; Gustavo Wagner; Diniz Mendes; Hugo Raniere; Di Assunção Brasilino; Pedro Sergio Nicoletti; Luis Reyes Rosales

2003-01-01T23:59:59.000Z

316

Testing and evaluation aspects of integration of unmanned air systems into the national air space  

Science Conference Proceedings (OSTI)

Current developments show that the integration of Unmanned Aerial Systems (UAS) into the National Airspace System (NAS) is a process that will inevitably happen. Arguably, it may be viewed as one of the key milestones in the history of aviation. Whereas ... Keywords: NAS integration, modeling and simulation, test and evaluation, unmanned aerial systems, verification and validation

Mauricio Castillo-Effen; Nikita Visnevski

2010-09-01T23:59:59.000Z

317

Aerial Photography At Nevada Test And Training Range Area (Sabin, Et Al.,  

Open Energy Info (EERE)

2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Aerial Photography At Nevada Test And Training Range Area (Sabin, Et Al., 2004) Exploration Activity Details Location Nevada Test And Training Range Area Exploration Technique Aerial Photography Activity Date Usefulness not indicated DOE-funding Unknown Notes We re-examined most of the area using newer orthophotography, SPOT, and Thematic Mapper images, and identified several areas of possible late Quaternary surface faulting (Figure 3). References A. E. Sabin, J. D. Walker, J. Unruh, F. C. Monastero (2004) Toward The Development Of Occurrence Models For Geothermal Resources In The Western United States Retrieved from "http://en.openei.org/w/index.php?title=Aerial_Photography_At_Nevada_Test_And_Training_Range_Area_(Sabin,_Et_Al.,_2004)&oldid=386843

318

Oblique Aerial & Ground Visible Band & Thermographic Imaging | Open Energy  

Open Energy Info (EERE)

Oblique Aerial & Ground Visible Band & Thermographic Imaging Oblique Aerial & Ground Visible Band & Thermographic Imaging Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Oblique Aerial & Ground Visible Band & Thermographic Imaging Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Remote Sensing Techniques Exploration Sub Group: Passive Sensors Parent Exploration Technique: Passive Sensors Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Thermal: Cost Information Low-End Estimate (USD): 400.0040,000 centUSD 0.4 kUSD 4.0e-4 MUSD 4.0e-7 TUSD / Subject Median Estimate (USD): 450.0045,000 centUSD 0.45 kUSD 4.5e-4 MUSD 4.5e-7 TUSD / Subject High-End Estimate (USD): 6,000.00600,000 centUSD

319

Aerial Photography At Hawthorne Area (Lazaro, Et Al., 2010) | Open Energy  

Open Energy Info (EERE)

Aerial Photography At Hawthorne Area (Lazaro, Et Al., Aerial Photography At Hawthorne Area (Lazaro, Et Al., 2010) Exploration Activity Details Location Hawthorne Area Exploration Technique Aerial Photography Activity Date Usefulness not indicated DOE-funding Unknown Notes The Navy GPO has contracted the University of Nevada Reno Great Basin for Center for Geothermal Research to conduct additional field exploration at HAD. The tasks required by the Navy range from field mapping and water sampling; detailed mapping, to low angle sun photo interpretations, trenching, to 3-D seismic interpretations and modeling. References Michael Lazaro, Chris Page, Andy Tiedeman, Andrew Sabin, Steve Bjornstad, Steve Alm, David Meade, Jeff Shoffner, Kevin Mitchell, Bob Crowder, Greg Halsey (2010) United States Department Of The Navy Geothermal

320

Aerial Photography At Coso Geothermal Area (1968-1971) | Open Energy  

Open Energy Info (EERE)

1971) 1971) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Aerial Photography At Coso Geothermal Area (1968-1971) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Aerial Photography Activity Date 1968 - 1971 Usefulness useful DOE-funding Unknown Exploration Basis Fumarolic and hot springs activity Notes Color photography has the greatest utility in locating areas of presently active thermal fluid leakage and in facilitating geologic interpretation References Koenig, J.B.; Gawarecki, S.J.; Austin, C.F. (1 February 1972) Remote sensing survey of the Coso geothermal area, Inyo county, California. Technical publication 1968--1971 Retrieved from "http://en.openei.org/w/index.php?title=Aerial_Photography_At_Coso_Geothermal_Area_(1968-1971)&oldid=473677"

Note: This page contains sample records for the topic "aerial measuring system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Data acquisition system time measurement capabilities using WorkBench{trademark} software  

SciTech Connect

There is an increasing interest in the ability to measure transient behavior in the Heat Transfer Laboratory (HTL). To accomplish this the timing system behavior for the Data Acquisition Systems (DAS) must be evaluated. This report discusses the evaluation of a DAS timing system using WorkBench{trademark} Software in a Macintosh II environment. It also describes a method which can be successfully used to calibrate the timing system associated with the DAS.

Coutts, D.A.

1992-04-01T23:59:59.000Z

322

Data acquisition system time measurement capabilities using WorkBench[trademark] software  

SciTech Connect

There is an increasing interest in the ability to measure transient behavior in the Heat Transfer Laboratory (HTL). To accomplish this the timing system behavior for the Data Acquisition Systems (DAS) must be evaluated. This report discusses the evaluation of a DAS timing system using WorkBench[trademark] Software in a Macintosh II environment. It also describes a method which can be successfully used to calibrate the timing system associated with the DAS.

Coutts, D.A.

1992-04-01T23:59:59.000Z

323

Computational characterization of cutoff probe system for the measurement of electron density  

Science Conference Proceedings (OSTI)

The wave cutoff probe, a precise measurement method for measuring the electron density, was recently proposed. To characterize the cutoff probe system, in this paper, the microwave simulations of a cutoff probe system were performed at various configurations of the cutoff probe system. The influence of the cutoff probe spectrum stemming from numerous parametric elements such as the probe tip length, probe tip distance, probe tip plane orientation, chamber volume/geometry, and coaxial cable length is presented and discussed. This article is expected to provide qualitative and quantitative insight into cutoff probe systems and its optimization process.

Na, Byung-Keun; Kim, Dae-Woong; Kwon, Jun-Hyuk; Chang, Hong-Young [Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon, 305-701 (Korea, Republic of); Kim, Jung-Hyung; You, Shin-Jae [Center for Vacuum Technology, Korea Research Institute of Standards and Science, Daejeon, 305-306 (Korea, Republic of)

2012-05-15T23:59:59.000Z

324

A highly portable, rapidly deployable system for eddy covariance measurements of CO2 fluxes  

DOE Green Energy (OSTI)

To facilitate the study of flux heterogeneity within a region, the authors have designed, built, and field-tested a highly portable, rapidly deployable, eddy covariance CO{sub 2} flux measurement system. The system is built from off-the-shelf parts and was assembled at a minimal cost. The unique combination of features of this system allow for a very rapid deployment with a minimal number of field personnel. The system is capable of making high precision, unattended measurements of turbulent CO{sub 2} fluxes, latent heat (LE) fluxes, sensible heat fluxes (H), and momentum transfer fluxes. In addition, many of the meteorological and ecosystem variables necessary for quality control of the fluxes and for running ecosystem models are measured. A side-by-side field comparison of the system at a pair of established AmeriFlux sites has verified that, for single measurements, the system is capable of CO{sub 2} flux accuracy of about {+-} 1.2 {micro}mole/m{sup 2}/sec, LE flux accuracy of about {+-} 15 Watts/m{sup 2}, H flux accuracy of about {+-} 7 Watts/m{sup 2}, and momentum transfer flux accuracy of about {+-} 11 gm-m/sec/sec. System deployment time is between 2 and 4 hours by a single person. The system was measured to draw between 30 and 35 Watts of power and may be run from available line power, storage batteries, or solar panels.

Billesbach, David P.; Fischer, Marc L.; Torn, Margaret S.; Berry, Joe A.

2001-09-19T23:59:59.000Z

325

A System for Remote Measurements of the Wind Stress over the Ocean  

Science Conference Proceedings (OSTI)

The DISSTRESS system for remote measurements of the surface wind stress over the ocean from ships and buoys is described. It is fully digital, utilizing the inertial dissipation technique. Parallel processing allows anemometer data to be filtered ...

W. G. Large; J. A. Businger

1988-04-01T23:59:59.000Z

326

Investigations of Temperature Effects on NOAA's Next Generation Water Level Measurement System  

Science Conference Proceedings (OSTI)

The National Oceanic and Atmospheric Administration collects tide and water-level data by using an acoustic tide gauge in its Next Generation Water Level Measurement System (NGWLMS). The elevation of the water is calculated from the round-trip ...

David L. Portep; H. H. Shih

1996-06-01T23:59:59.000Z

327

A New Natural Gamma Radiation Measurement System for Marine Sediment and Rock Analysis  

E-Print Network (OSTI)

A new high-efficiency and low-background system for the measurement of natural gamma radioactivity in marine sediment and rock cores retrieved from beneath the seabed was designed, built, and installed on the JOIDES Resolution research vessel. The system includes eight large NaI(Tl) detectors that measure adjacent intervals of the core simultaneously, maximizing counting times and minimizing statistical error for the limited measurement times available during drilling expeditions. Effect to background ratio is maximized with passive lead shielding, including both ordinary and low-activity lead. Large-area plastic scintillator active shielding filters background associated with the high-energy part of cosmic radiation. The new system has at least an order of magnitude higher statistical reliability and significantly enhances data quality compared to other offshore natural gamma radiation (NGR) systems designed to measure geological core samples. Reliable correlations and interpretations of cored intervals are ...

Vasiliev, M A; Chubarian, G; Olsen, R; Bennight, C; Cobine, T; Fackler, D; Hastedt, M; Houpt, D; Mateo, Z; Vasilieva, Y B

2010-01-01T23:59:59.000Z

328

Green's matrices of second order elliptic systems with measurable coefficients in two dimensional domains  

E-Print Network (OSTI)

We study Green's matrices for divergence form, second order strongly elliptic systems with bounded measurable coefficients in two dimensional domains. We establish existence, uniqueness, and pointwise estimates of the Green's matrices.

Dong, Hongjie

2007-01-01T23:59:59.000Z

329

The Michigan Prandtl System: An Instrument for Accurate Pressure Measurements in Convective Vortices  

Science Conference Proceedings (OSTI)

This article describes a Prandtl tube system developed at the University of Michigan to measure the static pressure, the total (or stagnation) pressure, and the velocity in flows whose direction and intensity change rapidly. The ever-changing wind ...

Douglas G. Halleaux; Jeffery M. Sussman; Nilton O. Rennó

2013-10-01T23:59:59.000Z

330

Improved Measurement of the Rossiter-McLaughlin Effect in the Exoplanetary System HD 17156  

E-Print Network (OSTI)

We present an improved measurement of the Rossiter-McLaughlin effect for the exoplanetary system HD 17156, based on radial-velocity data gathered with the Subaru 8.2m telescope throughout the planetary transit of UT 2008 ...

Winn, Joshua Nathan

331

An Airborne Precipitation Cloud Particle Charge Measurement Device and Analysis System  

Science Conference Proceedings (OSTI)

A system is described for measurement and analysis of precipitation particle charge from an aircraft in the highly variable and harsh environment of a convective cloud. A compromise, practical instrument design enables particle charge and sign to ...

C. P. R. Saunders; R. L. Pitter; B. A. Gardiner; J. Hallett

1988-02-01T23:59:59.000Z

332

A triple hot-wire system for indoor air flow measurements  

SciTech Connect

The application of a home made, triple hot-wire system in indoor air flow measurements is presented. Both the anemometer and sensor have been developed at Athens University with the aim to provide a reliable, research tool of reasonable cost, simple construction, and satisfactory performance. All three velocity components above a threshold of 10 cm s{sup {minus}1} can be measured. The system is also equipped with two thermometers for measuring the mean and fluctuating air temperature and for providing a means of temperature compensation of the hot wires` signal. After evaluation of the system in the laboratory, it was used in the measurement of the velocity profile of flows driven by the temperature difference between two internal zones. The implied accuracy of the method allows for its integration with measurements of air volume exchange rates between internal zones, as estimated by tracer gas techniques.

Papadopoulos, K.H.; Soilemes, A.T.; Helmis, C.G.; Santamouris, M.; Dascalaki, E. [Univ. of Athens (Greece); Asimakopoulos, D.N. [Univ. of Athens (Greece)]|[National Observatory of Athens (Greece). Inst. of Meteorology and Physics of the Atmospheric Environment; Argiriou, A. [National Observatory of Athens (Greece). Inst. of Meteorology and Physics of the Atmospheric Environment

1996-08-01T23:59:59.000Z

333

Temperature measurement and sensor selection for solar heating and cooling systems  

DOE Green Energy (OSTI)

The different methods for temperature and temperature difference measurement are critically described as to their applicability to solar heating and cooling systems. The major commercial temperature sensors are surveyed, and their technical and economic aspects are discussed. Installation and calibration techniques are recommended. The temperature measuring system implemented in the University of Pennsylvania Solar Row House as a consequence of the above considerations is described.

Lior, N.

1978-01-01T23:59:59.000Z

334

GPS and IEEE 1588 synchronization for the measurement of synchrophasors in electric power systems  

Science Conference Proceedings (OSTI)

In modern transmission and distribution networks, monitoring, control and protection tasks are usually performed by Intelligent Electronic Devices (IEDs), that are often connected to each other by suitable communication links. Many of the procedures ... Keywords: Distributed measurement systems, GPS, IEEE 1588, Phasor Measurement Unit, Synchrophasors

Andrea Carta; Nicola Locci; Carlo Muscas; Fabio Pinna; Sara Sulis

2011-02-01T23:59:59.000Z

335

Field Partial Discharge Measurements on Extruded Dielectric Transmission Cable Systems - State of the Art  

Science Conference Proceedings (OSTI)

This report describes a review of technical literature, Electric Power Research Institute (EPRI) technical reports, and industry guides to determine the current state of the art for field partial discharge (PD) measurements on extruded dielectric transmission cable systems. Emphasis is placed on the interpretation of field PD measurement test results.

2008-03-26T23:59:59.000Z

336

A Passive Measurement System for Network Charles Thomas, Joel Sommers, Paul Barford, Dongchan Kim, Ananya Das,  

E-Print Network (OSTI)

called GIMS. The system enables users to specify and centrally man- age packet capture on a set of different testbed types have been well documented, the utility of each depends directly on the ability to gather measurements from the infrastructure. Measurements in network testbeds can be broken into two

Crovella, Mark

337

A Displacement-Based Error Measure Applied in a Regional Ensemble Forecasting System  

Science Conference Proceedings (OSTI)

Errors in regional forecasts often take the form of phase errors, where a forecasted weather system is displaced in space or time. For such errors, a direct measure of the displacement is likely to be more valuable than traditional measures. A ...

Christian Keil; George C. Craig

2007-09-01T23:59:59.000Z

338

Using Unmanned Aerial Vehicles to Assess Vegetative Cover in Sagebrush Steppe Ecosytstems  

SciTech Connect

The Idaho National Laboratory (INL), in conjunction with the University of Idaho, is evaluating novel approaches for using unmanned aerial vehicles (UAVs) as a quicker and safer method for monitoring biotic resources. Evaluating vegetative cover is an important factor in understanding the sustainability of many ecosystems. In assessing vegetative cover, methods that improve accuracy and cost efficiency could revolutionize how biotic resources are monitored on western federal lands. Sagebrush steppe ecosystems provide important habitat for a variety of species, some of which are important indicator species (e.g., sage grouse). Improved methods are needed to support monitoring these habitats because there are not enough resource specialists or funds available for comprehensive ground evaluation of these ecosystems. In this project, two types of UAV platforms (fixed wing and helicopter) were used to collect still-frame imagery to assess cover in sagebrush steppe ecosystems. This paper discusses the process for collecting and analyzing imagery from the UAVs to (1) estimate total percent cover, (2) estimate percent cover for six different types of vegetation, and (3) locate sage grouse based on representative decoys. The field plots were located on the INL site west of Idaho Falls, Idaho, in areas with varying amounts and types of vegetative cover. A software program called SamplePoint developed by the U.S. Department of Agriculture, Agricultural Research Service (USDA-ARS) was used to evaluate the imagery for percent cover for the six vegetation types (bare ground, litter, shrubs, dead shrubs, grasses, and forbs). Results were compared against standard field measurements to assess accuracy.

Robert P. Breckenridge

2005-09-01T23:59:59.000Z

339

Constructing a GIS-based 3D urban model using LiDAR and aerial photographs  

E-Print Network (OSTI)

Due to the increasing availability of high-resolution remotely sensed imagery and detailed terrain surface elevation models, urban planners and municipal managers can now model and visualize the urban space in three dimensions. The traditional approach to the representation of urban space is 2D planimetric maps with building footprints, facilities and road networks. Recently, a number of methods have been developed to represent true 3D urban models. Those include panoramic imaging, Virtual Reality Modeling Language (VRML), and Computer-aided Design (CAD). These methods focus on aesthetic representation, but they do not have sufficient spatial query and analytical capabilities. This research evaluates the conventional approaches to 3D urban models, and identifies their advantages and limitations; GIS functionalities have been combined with 3D urban visualization techniques to develop a GIS-based urban modeling method; The algorithms and techniques have been explored to derive urban objects and their attributes from airborne LiDAR and high-resolution imagery for constructing and visualizing 3D urban models; and 3D urban models for the Texas A&M University (TAMU) campus and downtown Houston have been implemented using the algorithms and techniques developed in this research. By adding close-range camera images and highresolution aerial photographs as the texture of urban objects, effect of photorealism visualization has been achieved for walk-through and fly-through animations. The Texas A&M University campus model and the downtown Houston model have been implemented to offer proof-of-concept, namely, to demonstrate the advantages of the GIS-based approach. These two prototype applications show that the GIS-based 3D urban modeling method, by coupling ArcGIS and MultiGen-Paradigm Site Builder 3D software, can realize the desired functionalities in georeferencing, geographical measurements, spatial query, spatial analysis, and numerical modeling in 3D visual environment.

Lin, Wei-Ming

2004-12-01T23:59:59.000Z

340

Measuring e-learning systems success in an organizational context: Scale development and validation  

Science Conference Proceedings (OSTI)

Electronic learning (e-learning) has been widely adopted as a promising solution by many companies to offer learning-on-demand opportunities to individual employees in order to reduce training time and cost. While information systems (IS) success models ... Keywords: Electronic learning (e-learning), Measurement model, Scale development, Systems success

Yi-Shun Wang; Hsiu-Yuan Wang; Daniel Y. Shee

2007-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "aerial measuring system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Measurement Based Scenario Analysis of Short-Range Distribution System Planning  

E-Print Network (OSTI)

year to set up a distributed are: no component on outage, one substation transformer on generation (DG obtained through derived from the historical measurement data and incorporated a worst-case analysis system at demonstrated when investigating the system in a 5-year lead Støvring in Denmark. Simulation

Bak-Jensen, Birgitte

342

Modeling and Measurement Constraints in Fault Diagnostics for HVAC Systems Massieh Najafi1  

E-Print Network (OSTI)

Modeling and Measurement Constraints in Fault Diagnostics for HVAC Systems Massieh Najafi1 , David for determining HVAC diagnostics, methods to detect faults in HVAC systems are still generally undeveloped. Most in a substantial increase in energy use. For example, failure of an HVAC fan may prevent cool air from one

343

Field Measurements of Heating System Efficiency in Nine Electrically-Heated Manufactured Homes.  

Science Conference Proceedings (OSTI)

This report presents the results of field measurements of heating efficiency performed on nine manufactured homes sited in the Pacific Northwest. The testing procedure collects real-time data on heating system energy use and heating zone temperatures, allowing direct calculation of heating system efficiency.

Davis, Bob; Siegel, J.; Palmiter, L.; Baylon, D.

1996-07-01T23:59:59.000Z

344

Coherent anti-stokes Raman spectroscopy system for point temperature and major species concentration measurement  

DOE Green Energy (OSTI)

The Coherent anti-Stokes Raman Spectroscopy system (CARS) has been developed as a laser-based, advanced, combustion-diagnostic technique to measure temperature and major species concentration. Principles of operation, description of the system and its capabilities, and operational details of this instrument are presented in this report.

Singh, J.P.; Yueh, Fang-Yu

1993-10-01T23:59:59.000Z

345

Inertial-Dissipation Air-Sea Flux Measurements: A Prototype System Using Realtime Spectral Computations  

Science Conference Proceedings (OSTI)

A prototype system for the measurement and computation of air–sea fluxes in realtime was tested in the Humidity Exchange Over the Sea (HEXOS) main experiment, HEXMAX. The system used a sonic anemometer/thermometer for wind speed, surface stress ...

C. W. Fairall; J. B. Edson; S. E. Larsen; P. G. Mestayer

1990-06-01T23:59:59.000Z

346

Fuzzy expert system for the detection of episodes of poor water quality through continuous measurement  

Science Conference Proceedings (OSTI)

In order to prevent and reduce water pollution, promote a sustainable use, protect the environment and enhance the status of aquatic ecosystems, this article deals with the application of advanced mathematical techniques designed to aid in the management ... Keywords: Automated measurement networks, Fuzzy inference system, Fuzzy logic, Guadiana river, Water quality system

Cecilio Angulo; Joan Cabestany; Pablo Rodríguez; Montserrat Batlle; Antonio González; Sergio de Campos

2012-01-01T23:59:59.000Z

347

Continuous Ammonia Slip Measurements on a Lignite-Fired Unit with a Selective Catalytic Reduction System  

Science Conference Proceedings (OSTI)

Ammonia slip measurements that were made by a tunable diode laser (TDL) were conducted on a lignite-fired unit with a selective catalytic reduction (SCR) system using a newly developed adjustable flange assembly for dynamic alignment of cross-duct measurements. The single path optics were integrated with a fiber optic–coupled TDL system (Unisearch LasIR) and two shields to allow measurements over the 25-foot (7.62-meter) flue gas duct dimension. The nominal 4.5-foot (1.67-meter) shields were required to ...

2011-10-24T23:59:59.000Z

348

Evaluation of solar radiation measurement systems: EPRI/NREL final test report. Volume 1  

DOE Green Energy (OSTI)

Measured solar radiation resource data are needed by electric utilities to evaluate the potential of renewable energy options like photovoltaics in their service territory. In this final test report, we document a cooperative project of the Electric Power Research Institute (EPRI) and the National Renewable Energy Laboratory (NREL) to compare available measurement system options for performing solar radiation resource assessments. We present the detailed results of a 6-month field comparison of thermopile-based pyranometer and pyrheliometer solar irradiance measurement systems with two different implementations of the rotating shadowband radiometer (RSR) concept installed at NREL`s Solar Radiation Research Laboratory (SRRL) in Golden, Colorado.

Stoffel, T.; Riordan, C.; Bigger, J.

1992-11-01T23:59:59.000Z

349

Evaluation of solar radiation measurement systems: EPRI/NREL final test report  

DOE Green Energy (OSTI)

Measured solar radiation resource data are needed by electric utilities to evaluate the potential of renewable energy options like photovoltaics in their service territory. In this final test report, we document a cooperative project of the Electric Power Research Institute (EPRI) and the National Renewable Energy Laboratory (NREL) to compare available measurement system options for performing solar radiation resource assessments. We present the detailed results of a 6-month field comparison of thermopile-based pyranometer and pyrheliometer solar irradiance measurement systems with two different implementations of the rotating shadowband radiometer (RSR) concept installed at NREL's Solar Radiation Research Laboratory (SRRL) in Golden, Colorado.

Stoffel, T.; Riordan, C.; Bigger, J.

1992-11-01T23:59:59.000Z

350

Towards automatic power line detection for a UAV surveillance system using pulse coupled neural filter and an improved Hough transform  

Science Conference Proceedings (OSTI)

Spatial information captured from optical remote sensors on board unmanned aerial vehicles (UAVs) has great potential in automatic surveillance of electrical infrastructure. For an automatic vision-based power line inspection system, detecting power ... Keywords: Hough transform, Knowledge-based system, Power line inspection system, Pulse coupled neural filter, Unmanned aerial vehicles (UAVs)

Zhengrong Li; Yuee Liu; Rodney Walker; Ross Hayward; Jinglan Zhang

2010-08-01T23:59:59.000Z

351

A Micro-Computer-Based Fuel Optimization System Utilizing In-Situ Measurement of Carbon Monoxide  

E-Print Network (OSTI)

A microcomputer-based control system utilizing a distributed intelligence architecture has been developed to control combustion in hydrocarbon fuel-fired boilers and heaters to significantly reduce fuel usage. The system incorporates a unique flue gas analyzer that mounts directly in the flue or stack to continuously measure carbon monoxide, unburned hydrocarbons, opacity and temperature. The control console interfaces directly with the boiler's existing analog control system to provide precise air fuel ratio control based on carbon monoxide measurements. Significant decreases in excess air result in reduced fuel usage while meeting steam demand. Actual performance on industrial boilers shows increases in efficiency of from 1% to 3% with substantial fuel savings.

DeVivo, D. G.

1980-01-01T23:59:59.000Z

352

UV-VIS-IR Spectral Responsivity Measurement System for Solar Cells  

DOE Green Energy (OSTI)

NREL's PV Cell and Module Performance Characterization group has built a new spectral responsivity measurement system for solar cells. It uses a xenon arc lamp source, a single, grating monochrometer, and a fiber-optic bundle to couple the monochromatic light to the test device. The system has a spectral bandwidth of 2 nm, minimum spot diameter of 1.6 mm, a spectral range of 280-1330 nm, and uncertainty better than {+-}3% over most of this range. It is capable of incorporating light bias with intensities exceeding one sun. This paper discusses the system's features, capabilities, calibration, and measurement uncertainties.

Field, H.

1998-11-12T23:59:59.000Z

353

Direct measurement of the impulse in a magnetic thrust chamber system for laser fusion rocket  

Science Conference Proceedings (OSTI)

An experiment is conducted to measure an impulse for demonstrating a magnetic thrust chamber system for laser fusion rocket. The impulse is produced by the interaction between plasma and magnetic field. In the experiment, the system consists of plasma and neodymium permanent magnets. The plasma is created by a single-beam laser aiming at a polystyrene spherical target. The impulse is 1.5 to 2.2 {mu}Ns by means of a pendulum thrust stand, when the laser energy is 0.7 J. Without magnetic field, the measured impulse is found to be zero. These results indicate that the system for generating impulse is working.

Maeno, Akihiro; Yamamoto, Naoji; Nakashima, Hideki [Interdisciplinary Graduate School of Engineering Science, Kyushu University, 6-1 Kasuga-kouen, Kasuga, Fukuoka 816-8580 (Japan); Fujioka, Shinsuke; Johzaki, Tomoyuki [Institute of Laser Engineering, Osaka University, Suita, Osaka 565-087 (Japan); Mori, Yoshitaka [Graduate School for the Creation of New Photonics Industries, Hamamatsu, Shizuoka 431-1202 (Japan); Sunahara, Atsushi [Institute for Laser Technology, Suita, Osaka 565-087 (Japan)

2011-08-15T23:59:59.000Z

354

A Direct Error Measure for Affine Models of Nonlinear Algebraic Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

A Direct Error Measure for Affine Models of Nonlinear Algebraic Systems A Direct Error Measure for Affine Models of Nonlinear Algebraic Systems Speaker(s): David Lorenzetti Date: June 2, 1999 - 12:00pm Location: Bldg. 90 The Newton-Raphson solution of a nonlinear system iterately linearizes the equations, then steps to the solution of the resulting affine model. When a step exceeds the predictive range of its model, the method can diverge. The traditional response -- aggregating the equations into a cost function, and applying a minimization method -- suppresses information about how each equation model performs. Direct error measures examine the equations individually, allowing finer control over step lengths. The seminar will develop one such measure through the geometry of simple one- and two-dimensional examples, then present results from a suite of larger

355

A comparison between calculated and measured SHGC for complex fenestration systems  

DOE Green Energy (OSTI)

Calorimetric measurements of dynamic net heat flow through a complex fenestration system consisting of a buff venetian blind inside clear double glazing are used to derive the direction-dependent beam SHGC (solar heat gain coefficient) of the fenestration. The data are compared with calculations according to a proposed general method for deriving complex fenestration system SHGC`s from bidirectional layer optical properties and generic calorimetric properties. Previously published optical data for the same venetian blind and generic inward-flowing fraction measurements are used in the calculation. Satisfactory agreement is found between SHGC measurements and calculation. Significant dependence on incident angle was found in the measured SHGC`s. Profile angle was not found to be a useful variable in characterizing the system performance. Predicted SHGC was found to be inherently dependent on two angles, although only the incident angle variations were observable under test conditions.

Klems, J.H.; Warner, J.L.; Kelley, G.O.

1995-09-01T23:59:59.000Z

356

Deposition of Aerially Applied BT in an Oak Forest and Its Prediction with the FSCBG Model  

Science Conference Proceedings (OSTI)

Data are provided from 17 single-swath aerial spray trials that were conducted over a fully leafed, 16-m tall, mixed oak forest. The distribution of cross-swath spray deposits was sampled at the top of the canopy and below the canopy. ...

Dean E. Anderson; David R. Miller; Yansen Wang; William G. Yendol; Karl Mierzejewski; Michael L. McManus

1992-12-01T23:59:59.000Z

357

Flying eyes: free-space content creation using autonomous aerial vehicles  

Science Conference Proceedings (OSTI)

Highly effective 3D-camerawork techniques that do not have physical limitations have been developed for creating three-dimensional (3D) computer games. Recent techniques used for real-world visual content creation, such as those used for sports broadcasting ... Keywords: autonomous camerawork, unmanned aerial vehicle, video content

Keita Higuchi; Yoshio Ishiguro; Jun Rekimoto

2011-05-01T23:59:59.000Z

358

Improving Endurance of Autonomous Aerial Vehicles through Intelligent Service-Station Placement  

E-Print Network (OSTI)

Improving Endurance of Autonomous Aerial Vehicles through Intelligent Service-Station Placement Roy and the nature of the application. We present these algorithms in the context of a generic survey application location per flight, and not at more general survey applications such as search and rescue, surveillance

Minnesota, University of

359

Wind-Energy based Path Planning For Electric Unmanned Aerial Vehicles Using Markov Decision Processes  

E-Print Network (OSTI)

Wind-Energy based Path Planning For Electric Unmanned Aerial Vehicles Using Markov Decision wind-energy is one possible way to ex- tend flight duration for Unmanned Arial Vehicles. Wind-energy sources of wind energy available to exploit for this problem [5]: 1) Vertical air motion, such as thermal

Smith, Ryan N.

360

Microprocessor Based Combustion Monitoring and Control Systems Utilizing in Situ Opacity, Oxygen and CO Measurement  

E-Print Network (OSTI)

A new hybrid combustion control system has been developed which combines the functions which have traditionally been performed by separate stand-alone measurement and control instruments into one low-cost integrated system. Complete O2 Trim Control Systems will soon be available starting at less than 6,000 dollars. By utilizing a high performance low-cost microprocessor, both measurement and control functions can now be performed simultaneously. The new systems will feature automatic calibration, self-diagnostics, field programmable memory, and improved operator interface. By measuring the products of combustion utilizing the latest In Situ Opacity, Oxygen, and CO Monitoring technology, the fuel air mixture ratio of industrial fuel burning equipment can be optimized to insure reduced fuel consumption end improved combustion efficiency. Typical fuel savings of 3 to 5 percent have been experienced on a wide variety of different types of fuel burning sources, including packaged boilers, incinerators, and process heaters.

Molloy, R. C.

1981-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "aerial measuring system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Improved measurement placement and topology processing in power system state estimation  

E-Print Network (OSTI)

State estimation plays an important role in modern power system energy management systems. The network observability is a pre-requisite for the state estimation solution. Topological error in the network may cause the state estimation results to be seriously biased. This dissertation studies new schemes to improve the conventional state estimation in the above aspects. A new algorithm for cost minimization in the measurement placement design is proposed in this dissertation. The new algorithm reduces the cost of measurement installation and retains the network observability. Two levels of measurement place- ment designs are obtained: the basic level design guarantees the whole network to be observable using only the voltage magnitude measurement and the branch power flow measurements. The advanced level design keeps the network observable under certain contingencies. To preserve as many substation measurements as possible and maintain the net-work observability, an advanced network topology processor is introduced. A new method - the dynamic utilization of substation measurements (DUSM) - is presented. Instead of seeking the installation of new measurements in the system, this method dynamically calculates state estimation measurement values by applying the current law that regulates different measurement values implicitly. Its processing is at the substation level and, therefore, can be implemented independently in substations. This dissertation also presents a new way to verify circuit breaker status and identify topological errors. The new method improves topological error detection using the method of DUSM. It can be seen that without modifying the state estimator, the status of a circuit breaker may still be verified even without direct power flow measurements. Inferred measurements, calculated by DUSM, are used to help decide the CB status. To reduce future software code maintenance and to provide standard data ex- changes, the newly developed functions were developed in Java, with XML format input/output support. The effectiveness and applicability of these functions are ver-ified by various test cases.

Wu, Yang

2007-08-01T23:59:59.000Z

362

The Daya Bay Antineutrino Detector Filling System and Liquid Mass Measurement  

E-Print Network (OSTI)

The Daya Bay Reactor Neutrino Experiment has measured the neutrino mixing angle \\theta_{13} to world-leading precision. The experiment uses eight antineutrino detectors filled with 20-tons of gadolinium-doped liquid scintillator to detect antineutrinos emitted from the Daya Bay nuclear power plant through the inverse beta decay reaction. The precision measurement of sin^{2}2\\theta_{13} relies on the relative antineutrino interaction rates between detectors at near (400 m) and far (roughly 1.8 km) distances from the nuclear reactors. The measured interaction rate in each detector is directly proportional to the number of protons in the liquid scintillator target. A precision detector filling system was developed to simultaneously fill the three liquid zones of the antineutrino detectors and measure the relative target mass between detectors to <0.02%. This paper describes the design, operation, and performance of the system and the resulting precision measurement of the detectors' target liquid masses.

H. R. Band; J. J. Cherwinka; E. Draeger; K. M. Heeger; P. Hinrichs; C. A. Lewis; H. Mattison; M. C. McFarlane; D. M. Webber; D. Wenman; W. Wang; T. Wise; Q. Xiao

2013-07-03T23:59:59.000Z

363

Robust, accurate, and non-contacting vibration measurement systems: Summary of comparison measurements of the robust laser interferometer and typical accelerometer systems. Volume 1  

Science Conference Proceedings (OSTI)

Epoch Engineering, Incorporated (EEI) has completed a series of vibration measurements comparing their newly-developed Robust Laser Interferometer (RLI) with accelerometer-based instrumentation systems. EEI has successfully demonstrated, on several pieces of commonplace machinery, that non-contact, line-of-sight measurements are practical and yield results equal to or, in some cases, better than customary field implementations of accelerometers. The demonstration included analysis and comparison of such phenomena as nonlinearity, transverse sensitivity, harmonics, and signal-to-noise ratio. Fast Fourier Transformations were performed on the accelerometer and the laser system outputs to provide a comparison basis. The RLI was demonstrated, within the limits of the task, to be a viable, line-of-sight, non-contact alternative to accelerometer systems. Several different kinds of machinery were instrumented and compared, including a small pump, a gear-driven cement mixer, a rotor kit, and two small fans. Known machinery vibration sources were verified and RLI system output file formats were verified to be compatible with commercial computer programs used for vibration monitoring and trend analysis. The RLI was also observed to be less subject to electromagnetic interference (EMI) and more capable at very low frequencies.

Goodenow, T.C.; Shipman, R.L.; Holland, H.M. [Epoch Engineering, Inc., Gaithersburg, MD (United States)

1995-06-01T23:59:59.000Z

364

Robust, accurate, and non-contacting vibration measurement systems: Supplemental appendices presenting comparison measurements of the robust laser interferometer and typical accelerometer systems. Volume 2  

Science Conference Proceedings (OSTI)

Epoch Engineering, Incorporated (EEI) has completed a series of vibration measurements comparing their newly-developed Robust Laser Interferometer (RLI) with accelerometer-based instrumentation systems. EEI has successfully demonstrated, on several pieces of commonplace machinery, that non-contact, line-of-sight measurements are practical and yield results equal to or, in some cases, better than customary field implementations of accelerometers. The demonstration included analysis and comparison of such phenomena as nonlinearity, transverse sensitivity, harmonics, and signal-to-noise ratio. Fast Fourier Transformations were performed on the accelerometer and the laser system outputs to provide a comparison basis. The RLI was demonstrated, within the limits o the task, to be a viable, line-of-sight, non-contact alternative to accelerometer systems. Several different kinds of machinery were instrumented and. compared, including a small pump, a gear-driven cement mixer, a rotor kit, and two small fans. Known machinery vibration sources were verified and RLI system output file formats were verified to be compatible with commercial computer programs used for vibration monitoring and trend analysis. The RLI was also observed to be less subject to electromagnetic interference (EMI) and more capable at very low frequencies. This document, Volume 2, provides the appendices to this report.

Goodenow, T.C.; Shipman, R.L.; Holland, H.M. [Epoch Engineering, Inc., Gaithersburg, MD (United States)

1995-06-01T23:59:59.000Z

365

Evaluation of commercially available techniques and development of simplified methods for measuring grille airflows in HVAC systems  

E-Print Network (OSTI)

Walker. 2002. “Residential HVAC and Distribution researchMeasuring Grille Airflows in HVAC Systems I.S. Walker, C.P.Measuring Grille Airflows in HVAC Systems I.S. Walker, C.P.

Walker, Iain S.; Wray, Craig P.; Guillot, Cyril; Masson, S.

2003-01-01T23:59:59.000Z

366

Polar Bear Aerial Survey in the Eastern Chukchi Sea: A Pilot Study  

E-Print Network (OSTI)

Bering Seas population, shared with Russia. Currently a reliable population estimate for the Chukchi/Bering Seas population does not exist. Land-based aerial and mark-recapture population surveys may not be possible in the Chukchi Sea because variable ice conditions, the limited range of helicopters, extremely large polar bear home ranges, and severe weather conditions may limit access to remote areas. Thus line-transect aerial surveys from icebreakers may be the best available tool to monitor this polar bear stock. In August 2000, a line-transect survey was conducted in the eastern Chukchi Sea and western Beaufort Sea from helicopters based on a U.S. Coast Guard icebreaker under the “Ship of Opportunity ” program. The objectives of this pilot study were to estimate polar bear density in the eastern Chukchi and western Beaufort Seas and to assess the logistical feasibility of using shipbased aerial surveys to develop polar bear population estimates. Twenty-nine polar bears in 25 groups were sighted on 94 transects (8257 km). The density of bears was estimated as 1 bear per 147 km 2 (CV = 38%). Additional aerial surveys in late fall, using dedicated icebreakers, would be required to achieve the number of sightings, survey effort, coverage, and precision needed for more effective monitoring of population trends in the Chukchi Sea. Key words: aerial survey, Ursus maritimus, polar bear, Beaufort Sea, Chukchi Sea, line transect, icebreaker RÉSUMÉ. L’Alaska a deux populations d’ours polaires: celle du sud de la mer de Beaufort, commune avec le Canada, et celle de la mer des Tchouktches / mer de Béring, commune avec la Russie. À l’heure actuelle, on ne possède pas d’estimation fiable de la population de la mer des Tchouktches / mer de Béring. En raison des conditions variables de la glace, de la portée limitée

Susanne Kalxdorff; Geoff York

2003-01-01T23:59:59.000Z

367

Burnup verification measurements at U.S. Nuclear Facilities using the Fork system  

SciTech Connect

Burnup verification measurements have been performed using the Fork system at the Oconee Nuclear Station of Duke Power Company, and at Arkansas Nuclear One (Units 1 and 2), operated by Energy Operations, Inc. Passive neutron and gamma-ray measurements on individual spent fuel assemblies were correlated with the reactor records for burnup, cooling time, and initial enrichment. The correlation generates an internal calibration for the system in the form of a power law determined by a least squares fit to the neutron data. The average deviation of the reactor burnup records from the calibration determined from the measurements is a measure of the random error in the burnup records. The observed average deviations ranged from 2.2% to 3.5% for assemblies at the three reactor sites, indicating a high degree of consistency in the reactor records. Anomalous measurements were also observed, but could be explained by the presence of neutron sources in the assemblies. The effectiveness of the Fork system for verification of reactor records is due to the sensitivity of the neutron yield to burnup, the self-calibration generated by a series of measurements, the redundancy provided by three independent detection systems, and the operational simplicity and flexibility of the design.

Ewing, R.I.

1995-09-01T23:59:59.000Z

368

Measurements  

E-Print Network (OSTI)

? Financial constraint scales approach physical constraints scales ? Loads can become “ac/ve ” with more- complicated dynamical behavior. ? Shorter /me responses from smart meters, gas plants (which are faster).- ? Opera0on of 90 % of Energy Systems is Affected by Ambient Condi0ons

Mihai Anitescu; V. Zavala; C. Petra; M. Lubin; S. Lee; Rocklin T. Krause; Pi\\sburgh Pa Stochasc

2004-01-01T23:59:59.000Z

369

Procedure for Measuring and Reporting the Performance of Photovoltaic Systems in Buildings  

SciTech Connect

This procedure provides a standard method for measuring and characterizing the long-term energy performance of photovoltaic (PV) systems in buildings and the resulting implications to the building's energy use. The performance metrics determined here may be compared against benchmarks for evaluating system performance and verifying that performance targets have been achieved. Uses may include comparison of performance with the design intent; comparison with other PV systems in buildings; economic analysis of PV systems in buildings; and the establishment of long-term performance records that enable maintenance staff to monitor trends in energy performance.

Pless, S.; Deru, M.; Torcellini, P.; Hayter, S.

2005-10-01T23:59:59.000Z

370

Procedure for Measuring and Reporting the Performance of Photovoltaic Systems in Buildings  

DOE Green Energy (OSTI)

This procedure provides a standard method for measuring and characterizing the long-term energy performance of photovoltaic (PV) systems in buildings and the resulting implications to the building's energy use. The performance metrics determined here may be compared against benchmarks for evaluating system performance and verifying that performance targets have been achieved. Uses may include comparison of performance with the design intent; comparison with other PV systems in buildings; economic analysis of PV systems in buildings; and the establishment of long-term performance records that enable maintenance staff to monitor trends in energy performance.

Pless, S.; Deru, M.; Torcellini, P.; Hayter, S.

2005-10-01T23:59:59.000Z

371

In Situ CO, Oxygen, and Opacity Measurement for Optimizing Combustion Control System Performance  

E-Print Network (OSTI)

The performance of a combustion control system is limited by the accuracy and reliability of the feedback provided by the stack emission flue gas monitoring system which is utilized to analyze the composition of the products of combustion. A detailed review of the latest state-of-the-art In Situ measurement techniques is provided, including: gas filter correlation spectroscopy (CO), zirconium oxide fuel cell (oxygen), and glass fiber optics based transmissometers (opacity). Recent advancements in the design and application of microprocessor-based In Situ CO, oxygen, and opacity stack emission monitoring systems are outlined, including a review of the performance capability of the latest microprocessor-based combust ion control systems.

Molloy, R. C.

1982-01-01T23:59:59.000Z

372

Measurement of joint kinematics using a conventional clinical single-perspective flat-panel radiography system  

SciTech Connect

Purpose: The ability to accurately measure joint kinematics is an important tool in studying both normal joint function and pathologies associated with injury and disease. The purpose of this study is to evaluate the efficacy, accuracy, precision, and clinical safety of measuring 3D joint motion using a conventional flat-panel radiography system prior to its application in an in vivo study. Methods: An automated, image-based tracking algorithm was implemented to measure the three-dimensional pose of a sparse object from a two-dimensional radiographic projection. The algorithm was tested to determine its efficiency and failure rate, defined as the number of image frames where automated tracking failed, or required user intervention. The accuracy and precision of measuring three-dimensional motion were assessed using a robotic controlled, tibiofemoral knee phantom programmed to mimic a subject with a total knee replacement performing a stair ascent activity. Accuracy was assessed by comparing the measurements of the single-plane radiographic tracking technique to those of an optical tracking system, and quantified by the measurement discrepancy between the two systems using the Bland-Altman technique. Precision was assessed through a series of repeated measurements of the tibiofemoral kinematics, and was quantified using the across-trial deviations of the repeated kinematic measurements. The safety of the imaging procedure was assessed by measuring the effective dose of ionizing radiation associated with the x-ray exposures, and analyzing its relative risk to a human subject. Results: The automated tracking algorithm displayed a failure rate of 2% and achieved an average computational throughput of 8 image frames/s. Mean differences between the radiographic and optical measurements for translations and rotations were less than 0.08 mm and 0.07 Degree-Sign in-plane, and 0.24 mm and 0.6 Degree-Sign out-of-plane. The repeatability of kinematics measurements performed using the radiographic tracking technique was better than {+-}0.09 mm and 0.12 Degree-Sign in-plane, and {+-}0.70 mm and {+-}0.07 Degree-Sign out-of-plane. The effective dose associated with the imaging protocol used was 15 {mu}Sv for 10 s of radiographic cine acquisition. Conclusions: This study demonstrates the ability to accurately measure knee-joint kinematics using a single-plane radiographic measurement technique. The measurement technique can be easily implemented at most clinical centers equipped with a modern-day radiographic x-ray system. The dose of ionizing radiation associated with the image acquisition represents a minimal risk to any subjects undergoing the examination.

Seslija, Petar; Teeter, Matthew G.; Yuan Xunhua; Naudie, Douglas D. R.; Bourne, Robert B.; MacDonald, Steven J.; Peters, Terry M.; Holdsworth, David W. [Biomedical Engineering Graduate Program, University of Western Ontario, London, Ontario N6A 5B9 (Canada) and Imaging Research Laboratories, Robarts Research Institute, London, Ontario N6A 5K8 (Canada); Department of Medical Biophysics, University of Western Ontario, London, Ontario N6A 5C1 (Canada) and Imaging Research Laboratories, Robarts Research Institute, London, Ontario N6A 5K8 (Canada); Imaging Research Laboratories, Robarts Research Institute, London, Ontario N6A 5K8 (Canada) and Division of Orthopaedic Surgery, University of Western Ontario and London Health Sciences Centre, London, Ontario N6A 4L6 (Canada); Division of Orthopaedic Surgery, University of Western Ontario and London Health Sciences Centre, London, Ontario N6A 4L6 (Canada); Biomedical Engineering Graduate Program, University of Western Ontario, London, Ontario N6A 5B9 (Canada); Department of Medical Biophysics, University of Western Ontario, London, Ontario N6A 5C1 (Canada) and Imaging Research Laboratories, Robarts Research Institute, London, Ontario N6A 5K8 (Canada)

2012-10-15T23:59:59.000Z

373

Leveraging measurement systems to drive enterprise transformation: Two case studies from the U.S. aerospace industry  

Science Conference Proceedings (OSTI)

The focus of this paper is to depict the role of measurement systems in driving enterprise behavior and guiding enterprise transformation. Although enterprise transformation and performance measurement are separate areas of study, few have made the connection ... Keywords: Metrics, enterprise architecting, enterprise transformation, measurement systems, performance measurement

Ricardo Valerdi; Craig Blackburn

2010-04-01T23:59:59.000Z

374

Model-Based Methodology for Building Confidence in a Dynamic Measuring System  

E-Print Network (OSTI)

This thesis examines the special case in which a newly developed dynamic measurement system must be characterized when an accepted standard qualification procedure does not yet exist. In order to characterize this type of system, both physical experimentation and computational simulation methods will be used to build trust in this measurement system. This process of establishing credibility will be presented in the form of a proposed methodology. This proposed methodology will utilize verification and validation methods that apply within the simulation community as the foundation for this multi-faceted approach. The methodology will establish the relationships between four key elements: physical experimentation, conceptual modeling, computational simulations, and data processing. The combination of these activities will provide a comprehensive characterization study of the system. In order to illustrate the methodology, a case study was performed on a dynamic force measurement system owned by Sandia National Laboratories. This system was designed to measure the force required to pull a specimen to failure in tension at a user-input velocity. The results of the case study found that there was a significant measurement error occurring as the pull event involved large break loads and high velocities. 100 pull events were recorded using an experimental test assembly. The highest load conditions discovered a force measurement error of over 100%. Using computational simulations, this measurement error was reduced to less than 10%. These simulations were designed to account for the inertial effects that skew the piezoelectric load cells. This thesis displays the raw data and the corrected data for five different pull settings. The simulations designed using the methodology significantly reduced the error in all five pull settings. In addition to the force analysis, the simulations provide insight into the complete system performance. This includes the analysis of the maximum system velocity as well as the analysis of several proposed design changes. The findings suggest that the dynamic measurement system has a maximum velocity of 28 fps, and that this maximum velocity is unaffected by the track length or the mass of the moving carriage.

Reese, Isaac Mark

2013-05-01T23:59:59.000Z

375

rf power system for thrust measurements of a helicon plasma source  

SciTech Connect

A rf power system has been developed, which allows the use of rf plasma devices in an electric propulsion test facility without excessive noise pollution in thruster diagnostics. Of particular importance are thrust stand measurements, which were previously impossible due to noise. Three major changes were made to the rf power system: first, the cable connection was changed from a balanced transmission line to an unbalanced coaxial line. Second, the rf power cabinet was placed remotely in order to reduce vibration-induced noise in the thrust stand. Finally, a relationship between transmission line length and rf was developed, which allows good transmission of rf power from the matching network to the helicon antenna. The modified system was tested on a thrust measurement stand and showed that rf power has no statistically significant contribution to the thrust stand measurement.

Kieckhafer, Alexander W.; Walker, Mitchell L. R. [Department of Aerospace Engineering, High-Power Electric Propulsion Laboratory, College of Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332 (United States)

2010-07-15T23:59:59.000Z

376

Fast polarimetry system for the application to spin quantum non-demolition measurement  

E-Print Network (OSTI)

We report the development of a fast pulse polarimeter for the application to quantum non-demolition measurement of atomic spin (Spin QND). The developed system was tunable to the atomic resonance of ytterbium atom and has narrow laser linewidth suitable for spin QND. Using the developed polarimeter, we successfully demonstrated the measurement of the vacuum noise, with 10^6 to 10^7 photon number per pulse.

M. Takeuchi; T. Takano; S. Ichihara; A. Yamaguchi; M. Kumakura; T. Yabuzaki; Y. Takahashi

2005-12-12T23:59:59.000Z

377

Environmental Measurement-While-Drilling System for Real-Time Field Screening of Contaminants  

SciTech Connect

Sampling during environmental drilling is essential to fully characterize the spatial distribution and migration of near surface contaminants. However, analysis of the samples is expensive and time-consuming: off-site laboratory analysis can take weeks or months. An alternative screening technology, Environmental Measurement-While-Drilling (EMWD), could save money and valuable time by quickly distinguishing between contaminated and uncontaminated areas. Real time measurements provided by an EMWD system enable on-the-spot decisions to be made regarding sampling strategies. The system also enhances worker safety and provides the added flexibility of being able to steer a drill bit in or out of hazardous zones.

Bishop, L.B.; Lockwood, G.J.; Normann, R.A.; Selph, M.M.; Williams, C.V.

1999-02-22T23:59:59.000Z

378

Final Technical Report for Chief Scientist for Atmospheric Radiation Measurement (ARM) Aerial Vehicle Program (AVP)  

SciTech Connect

The major responsibilities of the PI were identified as 1) the formulation of campaign plans, 2) the representation of AVP in various scientific communities inside and outside of ARM and the associated working groups, 3) the coordination and selection of the relative importance of the three different focus areas (routine observations, IOPs, instrument development program), 4) the examination and quality control of the data collected by AVP, and 5) providing field support for flight series. This report documents the accomplishments in each of these focus areas for the 3 years of funding for the grant that were provided.

Greg M. McFarquhar

2011-10-21T23:59:59.000Z

379

Atmospheric Radiation Measurement (ARM) Data from ARM's Aerial Vehicles Program (AVP)  

DOE Data Explorer (OSTI)

The Office of Biological and Environmental Research in DOE's Office of Science is responsible for the ARM Program. The ARM Archive physically resides at the Oak Ridge National Laboratory.

380

Evidence for Submesoscale Barriers to Horizontal Mixing in the Ocean from Current Measurements and Aerial Photographs  

Science Conference Proceedings (OSTI)

Ocean submesoscale (2–20 km) mixing processes play a major role in ocean dynamics, in physical–biological interactions (e.g., in the dispersion of larvae), and in the dispersion of pollutants. In this paper, horizontal mixing on a scale of a few ...

Hezi Gildor; Erick Fredj; Jonah Steinbuck; Stephen Monismith

2009-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "aerial measuring system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Real-Time Per-Cycle Energy Consumption Measurement of Digital Systems  

E-Print Network (OSTI)

This technical report introduces a real-time per-clock-cycle energy measurement technique for power analysis and reduction of synchronous state machines. This technique guarantees accuracy with a sampling rate of twice the clock frequency under spiky current draw common in digital systems. In addition, it acquires the energy consumption profile in real-time, thus, not requiring repeated operation of the target system.

Naehyuck Chang; Kwanho Kim

2000-01-01T23:59:59.000Z

382

Poincaré-based control of delayed measured systems: Limitations and Improved Control  

E-Print Network (OSTI)

When a chaotic system is to be stabilized to a unstable orbit, delayed measurement of the system limits the applicability of chaos control techniqes. These limitations are analyzed and control schemes as linear predictive logging control (LPLC) and memory difference control (MDC) are introduced which can overcome those limitations for chaos control schemes that act in the Poincar\\'{e} section as Ott-Grebogi-Yorke (OGY) control and Bielawski-Derozier_Glorieux control (difference control).

Jens Christian Claussen

2007-12-27T23:59:59.000Z

383

Program on Technology Innovation: Wireless Vibration Measurement of Turbine and Compressor Blades: Phase 3 -- Electronic System  

Science Conference Proceedings (OSTI)

This report describes Phase 3 of a multiphase research and development effort to define a turbine blade vibration sensor (TBVS) system for measuring the vibration spectrum of a complete row of operating large steam turbine or compressor blades. In Phase 1, the design concept and several alternative system components were considered for a wireless electronic device called a mote (see the Electric Power Research Institute [EPRI] report 1020697). In Phase 2, the design of a custom accelerometer capable of o...

2011-12-16T23:59:59.000Z

384

On the Scheduling of Systems of UAVs and Fuel Service Stations for Long-Term Mission Fulfillment  

Science Conference Proceedings (OSTI)

The duration of missions that can be accomplished by a system of unmanned aerial vehicles (UAVs) is limited by the battery or fuel capacity of its constituent UAVs. However, a system of UAVs that is supported by automated refueling stations may support ... Keywords: Autonomous operation, Fuel service stations, Persistence, Unmanned aerial vehicle (UAV)

Jonghoe Kim; Byung Duk Song; James R. Morrison

2013-04-01T23:59:59.000Z

385

Vacuum-Based Time-Resolved Photoluminescence Measurement System Provides New Capability (Fact Sheet)  

DOE Green Energy (OSTI)

New measurement capability measures semiconductor minority-carrier lifetimes in conditions that simulate thin-film photovoltaic manufacturing environments. National Renewable Energy Laboratory (NREL) scientists have developed a new capability for measuring time-resolved photoluminescence (TRPL) in controlled environments, including under high vacuum and at elevated temperatures. This system enables the simulation of conditions in a thin-film photovoltaic (PV) manufacturing line. NREL's work in recent years has demonstrated a clear correlation between minority-carrier lifetime and thin-film PV device performance. Hence, the thin-film PV industry-both CIGS and CdTe-has a high level of interest for in-line metrology using NREL's TRPL system. The system, shown below, couples femtosecond laser pulses with optical fibers while avoiding spectral or temporal broadening over a wide range of wavelengths. The optics are designed to collect and couple the TRPL signal into the same fiber used to deliver the laser pulses. The capability is coupled into a high-vacuum chamber that can heat samples to 500 C or higher and expose them to reactive ambients. This tool will allow NREL to partner with industry to evaluate TRPL as a diagnostic at multiple stages of the manufacturing process and determine correlations to final module efficiency. The TRPL system has the potential to significantly improve manufacturing yield and throughput of current thin-film PV manufacturers. NREL developed a time-resolved photoluminescence (TRPL) system that can operate under high vacuum and at high temperatures. Thin-film PV performance can be better assessed because of its clear correlation with minority-carrier lifetime, which can be measured by NREL's TRPL system. Photovoltaic thin-film makers will be able to measure in-line TRPL at various stages of the manufacturing process, potentially leading to improved yield and throughput.

Not Available

2011-11-01T23:59:59.000Z

386

ARM - Field Campaign - Two-Column Aerosol Project (TCAP): Aerial...  

NLE Websites -- All DOE Office Websites (Extended Search)

Facility (AMF) and the Mobile Aerosol Observing System (MAOS) will be deployed on Cape Cod (MA) for a 12-month period starting in the summer of 2012 in order to quantify aerosol...

387

Peeping at chaos: Nondestructive monitoring of chaotic systems by measuring long-time escape rates  

E-Print Network (OSTI)

One or more small holes provide non-destructive windows to observe corresponding closed systems, for example by measuring long time escape rates of particles as a function of hole sizes and positions. To leading order the escape rate of chaotic systems is proportional to the hole size and independent of position. Here we give exact formulas for the subsequent terms, as sums of correlation functions; these depend on hole size and position, hence yield information on the closed system dynamics. Conversely, the theory can be readily applied to experimental design, for example to control escape rates.

L. A. Bunimovich; C. P. Dettmann

2006-10-06T23:59:59.000Z

388

A LIDAR-based crop height measurement system for Miscanthus giganteus  

Science Conference Proceedings (OSTI)

The objective of this research was to develop a stem height measurement system for Miscanthus giganteus (MxG), to be used as a component in a future Look Ahead Yield Monitor (LAYM). For this purpose, a SICK(R) LMS 291 LIght Detection And Ranging (LIDAR) ... Keywords: Crop height, Crop sensor, Energy crop, Laser scanner, Plant phenotype, Yield monitor

Lei Zhang; Tony E. Grift

2012-07-01T23:59:59.000Z

389

Measurement and meaning in information systems and organizational research: methodological and philosophical foundations  

Science Conference Proceedings (OSTI)

Despite renewed interest and many advances in methodology in recent years, information systems and organizational researchers face confusing and inconsistent guidance on how to choose amongst, implement, and interpret findings from the use of different ... Keywords: common method bias, construct validity, formative indicators, measurement, reflective indicators, structural equation models

Richard P. Bagozzi

2011-06-01T23:59:59.000Z

390

Comparison of Cloud Liquid Content Measured by Two Independent Ground-Based Systems  

Science Conference Proceedings (OSTI)

We report on observations of liquid water in clouds made by two independent ground-based microwave instruments. One system is a dual-frequency (20.6, 31.65 GHz) microwave radiometer designed to measure emission from the precipitable water vapor ...

J. B. Snider; F. O. Guiraud; D. C. Hogg

1980-05-01T23:59:59.000Z

391

A Small Portable Mie–Rayleigh Lidar System to Measure Aerosol Optical and Spatial Properties  

Science Conference Proceedings (OSTI)

The characteristics of a small, lightweight portable lidar system for measuring aerosol (Mie) scatter at wavelengths of 1064 and 532 nm are described. It uses a 20-Hz Nd:YAG pulsed laser as a source and a 12.7-cm-diameter telescope as a receiver. ...

J. N. Porter; B. R. Lienert; S. K. Sharma; H. W. Hubble

2002-11-01T23:59:59.000Z

392

New Ozone Measurement Systems for Autonomous Operation on Ocean Buoys and Towers  

Science Conference Proceedings (OSTI)

Two autonomous ozone measurement systems for use on ocean buoys and towers have been built and are discussed herein. They are based on low-power atmospheric ozone sensors from Physical Sciences Inc. (PSI) and 2B Technologies. The PSI sensor ...

E. J. Hintsa; G. P. Allsup; C. F. Eck; D. S. Hosom; M. J. Purcell; A. A. Roberts; D. R. Scott; E. R. Sholkovitz; W. T. Rawlins; P. A. Mulhall; K. Lightner; W. W. McMillan; J. Song; M. J. Newchurch

2004-07-01T23:59:59.000Z

393

Design and Implementation of the Radioactive Aerosol's Concentration Measurement System Based on Virtual Training  

Science Conference Proceedings (OSTI)

A Virtual Training System of radioactive aerosol 's concentration measurement is constructed based on Virtual Reality. Firstly, 3-d geometric models about radioactive aerosol's outer environment, detector, intelligent scaler and air sampling pump etc. ... Keywords: Virtual Training, Radioactivity, Aerosol, Radiation Field component

Hui Wei-hua; Huang Chang-qiang; Ding Da-li

2011-07-01T23:59:59.000Z

394

Analysis System for Measurement of CO2 Mixing Ratios in Flask Air Samples  

Science Conference Proceedings (OSTI)

A system for measuring the concentration of CO2 in flask air samples from the NOAA/CMDL worldwide flask sampling network is described. Up to 180 samples per day can he analyzed using a nondispersive infrared CO2 analyzer. All data acquisition and ...

Kirk W. Thoning; Thomas J. Conway; Ni Zhang; Duane Kitzis

1995-12-01T23:59:59.000Z

395

Comparative study of multicast authentication schemes with application to wide-area measurement system  

Science Conference Proceedings (OSTI)

Multicasting refers to the transmission of a message to multiple receivers at the same time. To enable authentication of sporadic multicast messages, a conventional digital signature scheme is appropriate. To enable authentication of a multicast data ... Keywords: multicast authentication, multiple-time signature scheme, smart grid, wide-area measurement system

Yee Wei Law, Zheng Gong, Tie Luo, Slaven Marusic, Marimuthu Palaniswami

2013-05-01T23:59:59.000Z

396

An Integrated Approach to Evaluating Risk Mitigation Measures for UAV Operational Concepts in the NAS  

E-Print Network (OSTI)

An integrated approach is outlined in this paper to evaluate risks posed by operating Unmanned Aerial Vehicles in the National Airspace System. The approach supports the systematic evaluation of potential risk mitigation ...

Weibel, Roland E

2005-09-26T23:59:59.000Z

397

Measure Guideline: Implementing a Plenum Truss for a Compact Air Distribution System  

SciTech Connect

This Measure Guideline presents the steps to implement a compact duct system inside an attic bulkhead (plenum truss) of a one-story, slab-on-grade (SOG) home. In a compact duct design, ductwork runs are reduced in length to yield a smaller and more compact duct system. Less energy will be lost through ductwork if the ducts are contained within the thermal enclosure of the house. These measures are intended for the production builder working to meet the 2012 International Energy Conservation Code (IECC) requirements and keep the ductwork within the thermal enclosure of the house. This measure of bringing the heating, ventilation and air conditioning (HVAC) equipment and ductwork within the thermal enclosure of the house is appropriate for the builder wishing to avoid cathedralizing the insulation in the attic space (i.e., locating it at the underside of the roof deck rather than along the attic floor) or adding dropped soffits.

Burdick, A.

2013-10-01T23:59:59.000Z

398

Summary of Field Measurement on UF6 Cylinders Using Electro-Mechanically Cooled Systems  

SciTech Connect

Measurement of the enrichment of solid state UF6 stored within large metal cylinders is a task commonly performed by plant operators and inspectors. The measurement technologies typically used range from low-resolution, high-efficiency sodium iodide detectors to high-resolution, moderate-efficiency high-purity germanium (HPGe) detectors. The technology used and methods deployed are dependent upon the material being measured, environmental conditions, time constraints, and measurement-precision requirements. Operators and inspectors typically use specially designed, HPGe detectors that are cooled with liquid nitrogen in situations where high-resolution measurements are required. However, the requirement for periodically refilling the system with liquid nitrogen makes remote usage cumbersome and slow. The task of cooling the detector reduces the available time for the inspector to perform other safeguards activities while on site. If the inspector has to reduce the count time for each selected cylinder to ensure that all preselected cylinders are measured during the inspection, the resulting measurement uncertainties may be increased, making it more difficult to detect and verify potential discrepancies in the operator's declarations. However, recent advances in electromechanically cooled HPGe detectors may provide the inspector with an improved verification tool by eliminating the need for liquid nitrogen. This report provides a summary of test results for field measurements performed using electromechanically cooled HPGe detectors on depleted, natural, and low-enriched uranium cylinders. The results of the study provide valuable information to inspectors and operators regarding the capabilities and limitations of electromechanically cooled systems based on true field-measurement conditions.

McGinnis, Brent R [ORNL; Smith, Steven E [ORNL; Solodov, Alexander A [ORNL; Whitaker, J Michael [ORNL; Morgan, James B [ORNL; MayerII, Richard L. [USEC; Montgomery, J. Brent [U.S. Enrichment Corporation Paducah Gaseous Diffusion Plant

2009-01-01T23:59:59.000Z

399

Quantifying Aerial Concentrations of Maize Pollen in the Atmospheric Surface Layer Using Remote-Piloted Airplanes and Lagrangian Stochastic Modeling  

Science Conference Proceedings (OSTI)

The extensive adoption of genetically modified crops has led to a need to understand better the dispersal of pollen in the atmosphere because of the potential for unwanted movement of genetic traits via pollen flow in the environment. The aerial ...

Donald E. Aylor; Matthew T. Boehm; Elson J. Shields

2006-07-01T23:59:59.000Z

400

Aerial Thermal Infrared Mapping Of The Waimangu-Waiotapu Geothermal Region,  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Aerial Thermal Infrared Mapping Of The Waimangu-Waiotapu Geothermal Region, New Zealand - M A Mongillo, Geothermics, 23(5-6), 1994, Pp 511-526 Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Aerial Thermal Infrared Mapping Of The Waimangu-Waiotapu Geothermal Region, New Zealand - M A Mongillo, Geothermics, 23(5-6), 1994, Pp 511-526 Details Activities (0) Areas (0) Regions (0) Abstract: Unavailable Author(s): Unknown Published: International Journal of Rock Mechanics and Mining Science & Geomechanics Abstracts, 1995 Document Number: Unavailable

Note: This page contains sample records for the topic "aerial measuring system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

An aerial radiological survey of Project Rulison and surrounding area, Battlement Creek Valley, Colorado  

SciTech Connect

An aerial radiological survey was conducted over the Project Rulison site, 40 miles (64 kilometers) northeast of Grand Junction, Colorado, from July 6 through July 12, 1993. Parallel lines were flown at intervals of 250 feet (76 meters) over a 6.5-square-mile (17-square-kilometer) area at a 200-foot (61-meter) altitude surrounding Battlement Creek Valley. The gamma energy spectra obtained were reduced to an exposure rate contour map overlaid on a high altitude aerial photograph of the area. The terrestrial exposure rate varied from 3.5 to 12.5 {mu}R/h (excluding cosmic) at 1 meter above ground level. No anomalous or man-made isotopes were found.

NONE

1995-08-01T23:59:59.000Z

402

An aerial radiological survey of the Durango, Colorado uranium mill tailings site and surrounding area  

SciTech Connect

An aerial radiological survey of Durango, Colorado, including the inactive uranium mill tailings piles located southwest of the town, was conducted during August 25--29, 1980, for the Department of Energy's Environmental and Safety Engineering Division. Areas of radiation exposure rates higher than the local background, which was about 15 microrentgens per hour ({mu}R/h), were observed directly over and to the south of the mill tailings piles, over a cemetery, and at two spots near the fairgrounds. The rapidly changing radiation exposure rates at the boundaries of the piles preclude accurate extrapolation of aerial radiological data to ground level exposure rates in their immediate vicinity. Estimated radiation exposure rates close to the piles, however, approached 30 times background, or about 450 {mu}R/h. Radiation exposure rates in a long area extending south from the tailings piles were about 25 {mu}R/h.

Hilton, L.K.

1981-06-01T23:59:59.000Z

403

Field monitoring of solar domestic hot water systems based on simple tank temperature measurement  

DOE Green Energy (OSTI)

By dynamically measuring solar storage tank temperature(s), the solar storage tank effectively becomes a dynamic calorimeter to measure the energy flows in a solar system. The energy flows include solar loop gain, tank losses, and potentially draw extraction. With one-channel temperature loggers storing data over several days to several weeks, this approach provides low-cost, modest-accuracy performance assessment, useful for determination of savings persistence and diagnostics. Analysis is based upon the tank energy balance, identifying solar gain during the day and tank losses at night. These gains and losses can be compared to expectations based upon prior knowledge, and estimated weather conditions. Diagnostics include controller and pump operation, and excessive nighttime losses. With one point temperature logger, solar gain accuracy is expected to be 20 to 50%, depending on draw frequency and volume. Two examples are shown, a properly operating system and a system with excessive nighttime losses.

Burch, J.; Xie, Yuantao [National Renewable Energy Lab., Golden, CO (United States); Murley, C.S. [Sacramento Municipal Utility District, CA (United States)

1995-05-01T23:59:59.000Z

404

Error Detection, Factorization and Correction for Multi-View Scene Reconstruction from Aerial Imagery  

SciTech Connect

Scene reconstruction from video sequences has become a prominent computer vision research area in recent years, due to its large number of applications in fields such as security, robotics and virtual reality. Despite recent progress in this field, there are still a number of issues that manifest as incomplete, incorrect or computationally-expensive reconstructions. The engine behind achieving reconstruction is the matching of features between images, where common conditions such as occlusions, lighting changes and texture-less regions can all affect matching accuracy. Subsequent processes that rely on matching accuracy, such as camera parameter estimation, structure computation and non-linear parameter optimization, are also vulnerable to additional sources of error, such as degeneracies and mathematical instability. Detection and correction of errors, along with robustness in parameter solvers, are a must in order to achieve a very accurate final scene reconstruction. However, error detection is in general difficult due to the lack of ground-truth information about the given scene, such as the absolute position of scene points or GPS/IMU coordinates for the camera(s) viewing the scene. In this dissertation, methods are presented for the detection, factorization and correction of error sources present in all stages of a scene reconstruction pipeline from video, in the absence of ground-truth knowledge. Two main applications are discussed. The first set of algorithms derive total structural error measurements after an initial scene structure computation and factorize errors into those related to the underlying feature matching process and those related to camera parameter estimation. A brute-force local correction of inaccurate feature matches is presented, as well as an improved conditioning scheme for non-linear parameter optimization which applies weights on input parameters in proportion to estimated camera parameter errors. Another application is in reconstruction pre-processing, where an algorithm detects and discards frames that would lead to inaccurate feature matching, camera pose estimation degeneracies or mathematical instability in structure computation based on a residual error comparison between two different match motion models. The presented algorithms were designed for aerial video but have been proven to work across different scene types and camera motions, and for both real and synthetic scenes.

Hess-Flores, M

2011-11-10T23:59:59.000Z

405

An aerial radiological survey of Naturita, Colorado and surrounding area. Date of survey: September 1981  

SciTech Connect

An aerial radiological survey of four areas in the vicinity of the inactive uranium mill tailings site at Naturita, Colorado was conducted in September 1981. The average background radiation exposure rate (normalized to 3 feet above the ground) was about 10 to 16 microroentgens per hour ({mu}R/h). Uranium ore or tailings were detected at Naturita, Nucla, East Vancorum, and the general region downriver and downwind from the former mill tailings site.

Jaffe, R.J.

1982-09-01T23:59:59.000Z

406

An Aerial Radiological Survey of the Portsmouth Gaseous Diffusion Plant and Surrounding Area, Portsmouth, Ohio  

SciTech Connect

An aerial radiological survey was conducted over the 16 square-mile (~41 square-kilometer) area surrounding the Portsmouth Gaseous Diffusion Plant. The survey was performed in August 2007 utilizing a large array of helicopter mounted sodium iodide detectors. The purpose of the survey was to update the previous radiological survey levels of the environment and surrounding areas of the plant. A search for a missing radium-226 source was also performed. Implied exposure rates, man-made activity, and excess bismuth-214 activity, as calculated from the aerial data are presented in the form of isopleth maps superimposed on imagery of the surveyed area. Ground level and implied aerial exposure rates for nine specific locations are compared. Detected radioisotopes and their associated gamma ray exposure rates were consistent with those expected from normal background emitters. At specific plant locations described in the report, man-made activity was consistent with the operational histories of the location. There was no spectral activity that would indicate the presence of the lost source.

Namdoo Moon

2007-12-01T23:59:59.000Z

407

SC/51/SM11 AERIAL SURVEYS OF BELUGA WHALES IN COOK INLET, ALASKA,  

E-Print Network (OSTI)

The National Marine Mammal Laboratory (NMML), in cooperation with the NMFS Alaska Regional Office, the Alaska Beluga Whale Committee (ABWC) and the Cook Inlet Marine Mammal Council (CIMMC), conducted an aerial survey of the beluga whale population in Cook Inlet, Alaska, during 9-15 June 1998. The 39.4 hr survey was flown in a twin-engine, high-wing aircraft at an altitude of 244 m (800 ft) altitude and speed of 185 km/hr (100 kt) along a trackline 1.4 km from shore. This provided complete coverage of coastal areas around the entire inlet (1,388 km) one or more times and 1,320 km of transects across the inlet. Throughout most of this survey, a test of sighting rates was conducted with multiple independent observers on the coastal (left) side of the plane, where virtually all sightings occur. A single observer and a computer operator/data recorder were on the right side. After finding beluga groups, a series of aerial passes were made to allow at least two pairs of observers to make 4 or more counts of each group. The sum of the aerial estimates (using median counts from each site, not corrected for missed whales) ranged from 173 to 192 whales, depending on survey day. There were 57-109 belugas counted near the Susitna River, 42-93 in Knik Arm and 23-42 in Chickaloon Bay, but only one (dead) beluga whale was found in lower Cook Inlet.

David J. Rugh; Roderick C. Hobbs; Kim E. W. Shelden; Barbara A. Mahoney; Laura K. Litzky

1998-01-01T23:59:59.000Z

408

Precision Measurements of Atomic Lifetimes and Hyperfine Energies in Alkali Like Systems  

Science Conference Proceedings (OSTI)

Financial support of this research project has lead to advances in the study of atomic structure through precision measurements of atomic lifetimes, energy splittings, and transitions energies. The interpretation of data from many areas of physics and chemistry requires an accurate understanding of atomic structure. For example, scientists in the fields of astrophysics, geophysics, and plasma fusion depend on transition strengths to determine the relative abundances of elements. Assessing the operation of discharges and atomic resonance line filters also depends on accurate knowledge of transition strengths. Often relative transition strengths are measured precisely, but accurate atomic lifetimes are needed to obtain absolute values. Precision measurements of atomic lifetimes and energy splittings also provide fundamentally important atomic structure information. Lifetimes of allowed transitions depend most strongly on the electronic wave function far from the nucleus. Alternatively, hyperfine splittings give important information about the electronic wave function in the vicinity of the nucleus as well as the structure of the nucleus. Our main focus throughout this project has been the structure of atomic cesium because of its connection to the study of atomic parity nonconservation (PNC). The interpretation of atomic PNC experiments in terms of weak interaction coupling constants requires accurate knowledge of the electronic wave function near the nucleus as well as far from the nucleus. It is possible to address some of these needs theoretically with sophisticated many-electron atomic structure calculations. However, this program has been able to address these needs experimentally with a precision that surpasses current theoretical accuracy. Our measurements also play the important role of providing a means for testing the accuracy of many-electron calculations and guiding further theoretical development, Atomic systems such as cesium, with a single electron outside of a closed shell, provide the simplest open shell systems for detailed comparisons between experiment and theory. This program initially focused on measurements of excited state atomic lifetimes in alkali atomic systems. Our first measurements of atomic lifetimes in cesium surpassed the precision and accuracy of previous measurements and sparked renewed interest in the need for greater precision in lifetime measurements throughout the atomic physics community. After enhancing the capabilities of the laser systems built for these initial measurements, we began a study hyperfine energy splittings in cesium using a thermal atomic beam. The results surpassed previous measurements by more than an order of magnitude and lead to the first observation of the nuclear magnetic octupole moment in cesium demonstrating the inadequacy of the nuclear shell model for predicting high order nuclear moments. The laser system and atomic beam apparatus developed for these endeavors turned out to be perfectly suited for exploring the possibility of making absolute optical frequency measurements of atomic transitions. We initiated collaboration with researchers at NIST so that the desired optical frequencies could be reference with respect to the primary microwave frequency standard (Cs atomic fountain NIST-FI) via a femtosecond laser frequency comb. Our first absolute optical frequency measurement, of the cesium D2 line, surpassed the accuracy of a previous measurement by more than an order of magnitude. An absolute optical frequency measurement of the cesium D1 line, now near completion, also surpasses previous results and places us in a position to be able to report a new value for the fine structure constant which is the fundamental dimensionless constant that underlies all electromagnetic interactions.

Tanner, Carol E.

2005-03-04T23:59:59.000Z

409

The DOE Wide Area Measurement System (WAMS) Project: Demonstration of dynamic information technology for the future power system  

SciTech Connect

In 1989 the Bonneville Power Administration (BPA) and the Western Area Power Administration (WAPA) joined the US Department of Energy (DOE) in an assessment of longer-term research and development needs for future electric power system operation. The effort produced a progressively sharper vision of a future power system in which enhanced control and operation are the primary means for serving new customer demands, in an environment where increased competition, a wider range of services and vendors, and much narrower operating margins all contribute to increased system efficiencies and capacity. Technology and infrastructure for real time access to wide area dynamic information were identified as critical path elements in realizing that vision. In 1995 the DOE accordingly launched the Wide Area Measurement System (WAMS) Project jointly with the two Power Marketing Administrations (PMAs) to address these issues in a practical operating environment--the western North America power system. The Project draws upon many years of PMA effort and related collaboration among the western utilities, plus an expanding infrastructure that includes regionally involved contractors, universities, and National Laboratories plus linkages to the Electric Power Research Institute (EPRI). The WAMS project also brings added focus and resources to the evolving Western System Dynamic Information Network, or WesDINet. This is a collective response of the Western Systems Coordinating Council (WSCC) member utilities to their shared needs for direct information about power system characteristics, model fidelity, and operational performance. The WAMS project is a key source of the technology and backbone communications needed to make WesDINet a well integrated, cost effective enterprise network demonstrating the role of dynamic information technology in the emerging utility environment.

Mittelstadt, W.A. [USDOE Bonneville Power Administration, Portland, OR (United States); Krause, P.E.; Wilson, R.E. [USDOE Western Area Power Administration, Golden, CO (United States); Overholt, P.N. [USDOE, Washington, DC (United States); Sobajic, D.J. [Electric Power Research Inst., Palo Alto, CA (United States); Hauer, J.F. [Pacific Northwest National Lab., Richland, WA (United States); Rizy, D.T. [Oak Ridge National Lab., TN (United States)

1996-07-01T23:59:59.000Z

410

Design and testing of a non-intrusive torque measurement system  

E-Print Network (OSTI)

This thesis details the initial development of a non-intrusive torque measurement system to measure torque in a rotating driveshaft like those commonly found on internal combustion engine powered irrigation pumping plants. A typical driveshaft used in pumping plant applications consists of flanged U-joints on each end with a constant cross-section steele tube portion connecting the U-joints. The photoelectric sensor based system was able to predict torque to within 3?9.1 N-m (346 in-lbs) under constant rpm conditions. Two sensor types, phototransistor and photodiode, were tested. The photodiode sensor was tested with two emitter types: infrared LED and red laser. No significant difference in response was found using either the LED or red laser emmitters. Both the photoelectric and photodiode sensor measurements showed correlation to actual torque. The photoelectric sensor configuration correlation had a standard error of 5?% of a typical natural-gas pumping plant installation running at 773.9 N-m of torque. The sensors were mounted independent of the driveshaft and measured the phaseshift of two pins mounted on the shaft as they passed through the photosensing area. This caused extreme sensitivity to vibration of the engine and driveshaft. A similar design with a temporary mount connected to the shaft and transmitting the response signal via radio frequency telemetry could decrease the effects of vibration on the system.

Wilson, Edwin Ernest

1998-01-01T23:59:59.000Z

411

Seismic response of a tower as measured by an integrated RTK-GPS system  

E-Print Network (OSTI)

Monitoring structural response induced by seismic waves is an efficient way to mitigate the damage of earthquakes. For example, the measured signal can be used to activate an alarm system in order to evacuate people from an endangered building, or to drive a control system to suppress earthquake-excited vibrations so as to protect the integrity of the structure, or to assess post-seismic damage to a structure. Traditionally such vibrations have been measured solely by accelerometers. However, it is impossible to measure the static and semi-static components of the movement with accelerometers. An integrated system combining RTK-GPS and accelerometers has been deployed atop a 108m tall tower in Tokyo in order to monitor its structural integrity on a continuous basis. Data acquired during earthquakes are automatically archived. In this paper, the seismic responses of the tower were analysed using Fast Fourier Transformation (FFT) of the GPS and accelerometer measurements. The data were also converted to displacement (in the case of accelerometer) and acceleration (in the case of GPS) through double-integration and double-differentiation respectively, for the purpose of direct comparison. The results agreed with each other well, except that the static component was

Xiaojing Li; Linlin Ge; Yukio Tamura; Akihito Yoshida; Chris Rizos; Gang-ding Peng

2004-01-01T23:59:59.000Z

412

Microcontroller based system for electrical breakdown time delay measurement in gas-filled devices  

SciTech Connect

This paper presents realization of a digital embedded system for measuring electrical breakdown time delay. The proposed system consists of three major parts: dc voltage supply, analog subsystem, and a digital subsystem. Any dc power source with the range from 100 to 1000 V can be used in this application. The analog subsystem should provide fast and accurate voltage switching on the testing device as well as transform the signals that represent the voltage pulse on the device and the device breakdown into the form suitable for detection by a digital subsystem. The insulated gate bipolar transistor IRG4PH40KD driven by TC429 MOSFET driver is used for high voltage switching on the device. The aim of a digital subsystem is to detect the signals from the analog subsystem and to measure the elapsed time between their occurrences. Moreover, the digital subsystem controls various parameters that influence time delay and provides fast data storage for a large number of measured data. For this propose, we used the PIC18F4550 microcontroller with a full-speed compatible universal serial bus (USB) engine. Operation of this system is verified on different commercial and custom made gas devices with different structure and breakdown mechanisms. The electrical breakdown time delay measurements have been carried out as a function of several parameters, which dominantly influence electrical breakdown time delay. The obtained results have been verified using statistical methods, and they show good agreement with the theory. The proposed system shows good repeatability, sensitivity, and stability for measuring the electrical breakdown time delay.

Pejovic, Milic M.; Denic, Dragan B.; Pejovic, Momcilo M.; Nesic, Nikola T.; Vasovic, Nikola [Faculty of Electronic Engineering, University of Nis, Aleksandra Medvedeva 14, 18000 Nis (Serbia)

2010-10-15T23:59:59.000Z

413

Film thickness measurement techniques applied to micro-scale two-phase flow systems  

SciTech Connect

Recently semi-empirical models to estimate flow boiling heat transfer coefficient, saturated CHF and pressure drop in micro-scale channels have been proposed. Most of the models were developed based on elongated bubbles and annular flows in the view of the fact that these flow patterns are predominant in smaller channels. In these models, the liquid film thickness plays an important role and such a fact emphasizes that the accurate measurement of the liquid film thickness is a key point to validate them. On the other hand, several techniques have been successfully applied to measure liquid film thicknesses during condensation and evaporation under macro-scale conditions. However, although this subject has been targeted by several leading laboratories around the world, it seems that there is no conclusive result describing a successful technique capable of measuring dynamic liquid film thickness during evaporation inside micro-scale round channels. This work presents a comprehensive literature review of the methods used to measure liquid film thickness in macro- and micro-scale systems. The methods are described and the main difficulties related to their use in micro-scale systems are identified. Based on this discussion, the most promising methods to measure dynamic liquid film thickness in micro-scale channels are identified. (author)

Tibirica, Cristiano Bigonha; do Nascimento, Francisco Julio; Ribatski, Gherhardt [Department of Mechanical Engineering, Escola de Engenharia de Sao Carlos (EESC), University of Sao Paulo (USP), Sao Carlos (Brazil)

2010-05-15T23:59:59.000Z

414

Measurement calibration/tuning & topology processing in power system state estimation  

E-Print Network (OSTI)

State estimation plays an important role in modern power systems. The errors in the telemetered measurements and the connectivity information of the network will greatly contaminate the estimated system state. This dissertation provides solutions to suppress the influences of these errors. A two-stage state estimation algorithm has been utilized in topology error identification in the past decade. Chapter II discusses the implementation of this algorithm. A concise substation model is defined for this purpose. A friendly user interface that incorporates the two-stage algorithm into the conventional state estimator is developed. The performances of the two-stage state estimation algorithms rely on accurate determination of suspect substations. A comprehensive identification procedure is described in chapter III. In order to evaluate the proposed procedure, a topology error library is created. Several identification methods are comparatively tested using this library. A remote measurement calibration method is presented in chapter IV. The un-calibrated quantities can be related to the true values by the characteristic functions. The conventional state estimation algorithm is modified to include the parameters of these functions. Hence they can be estimated along with the system state variables and used to calibrate the measurements. The measurements taken at different time instants are utilized to minimize the influence of the random errors. A method for auto tuning of measurement weights in state estimation is described in chapter V. Two alternative ways to estimate the measurement random error variances are discussed. They are both tested on simulation data generated based on IEEE systems. Their performances are compared. A comprehensive solution, which contains an initialization process and a recursively updating process, is presented. Chapter VI investigates the errors introduced in the positive sequence state estimation due to the usual assumptions of having fully balanced bus loads/generations and continuously transposed transmission lines. Several tests are conducted using different assumptions regarding the availability of single and multi-phase measurements. It is demonstrated that incomplete metering of three-phase system quantities may lead to significant errors in the positive sequence state estimates for certain cases. A novel sequence domain three-phase state estimation algorithm is proposed to solve this problem.

Zhong, Shan

2003-12-01T23:59:59.000Z

415

A Field-Deployable Real-Time Laser-Based Non-Intrusive Detection System for Measurement of True Travel Time on the Highway  

E-Print Network (OSTI)

A Real- Time Laser-Based Detection System for Measurement ofTime Laser- Based Prototype Detection System for MeasurementLaser-Based Non-Intrusive Detection System for Measurement

Cheng, Harry H.; Shaw, Ben; Palen, Joe; Wang, Zhaoqing; Chen, Bo

2002-01-01T23:59:59.000Z

416

Evaluation of a Bowen Ratio Measurement System over Forest and Clear-Cut Sites at Petawawa, Ontario  

Science Conference Proceedings (OSTI)

This paper reports on the features of a reversing measurement system for the determination of the Bowen ratio. Ten-junction thermopiles are used to measure wet- and dry-bulb temperature differences, and a single thermocouple gives absolute wet-...

J. H. McCaughey; D. M. Brintnell

1984-09-01T23:59:59.000Z

417

High-Resolution Atmospheric Sensing of Multiple Atmospheric Variables Using the DataHawk Small Airborne Measurement System  

Science Conference Proceedings (OSTI)

The DataHawk small airborne measurement system provides in situ atmospheric measurement capabilities for documenting scales as small as 1 m and can access reasonably large volumes in and above the atmospheric boundary layer at low cost. The design ...

Dale A. Lawrence; Ben B. Balsley

2013-10-01T23:59:59.000Z

418

Development and Testing of Instrumentation for UAV-Based Flux Measurements within Terrestrial and Marine Atmospheric Boundary Layers  

Science Conference Proceedings (OSTI)

Instrumentation packages have been developed for small (18–28 kg) unmanned aerial vehicles (UAVs) to measure momentum fluxes as well as latent, sensible, and radiative heat fluxes in the atmospheric boundary layer (ABL) and the topography below. ...

Benjamin D. Reineman; Luc Lenain; Nicholas M. Statom; W. Kendall Melville

2013-07-01T23:59:59.000Z

419

Distributed tracking control of leader-follower multi-agent systems under noisy measurement  

E-Print Network (OSTI)

In this paper, a distributed tracking control scheme with distributed estimators has been developed for a leader-follower multi-agent system with measurement noises and directed interconnection topology. It is supposed that each follower can only measure relative positions of its neighbors in a noisy environment, including the relative position of the second-order active leader. A neighbor-based tracking protocol together with distributed estimators is designed based on a novel velocity decomposition technique. It is shown that the closed loop tracking control system is stochastically stable in mean square and the estimation errors converge to zero in mean square as well. A simulation example is finally given to illustrate the performance of the proposed control scheme.

Jiangping Hu; Gang Feng

2011-08-09T23:59:59.000Z

420

Model Acceptability Measure for the Identification of Failures in Qualitative Fault Monitoring Systems  

E-Print Network (OSTI)

This paper deals with two of the main tasks of Fault Monitoring Systems (FMS): fault detection and fault identification. During fault detection, the FMS should recognize that the plant behavior is abnormal, and therefore, that the plant is not working properly. During fault identification, the FMS should conclude which type of failure has occurred. The first goal of this work is to consolidate a new fault detection technique, called enveloping, that was developed in the context of the Fuzzy Inductive Reasoning Fault Monitoring System (FIRFMS). The second and primary goal of this paper is to introduce the model acceptability measure as a tool to enhance and make more robust the fault identification process in the context of FIRFMS. The enveloping technique and the model acceptability measure are applied to an electric circuit model previously used for such purpose in the literature. It is shown that the new methods outperform the ones previously advocated in FIRFMS for that purpose 1 ...

Antoni Escobet Angela; Angela Nebot; Francois E. Cellier

1999-01-01T23:59:59.000Z

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421

Measurement techniques for local and global fluid dynamic quantities in two and three phase systems  

Science Conference Proceedings (OSTI)

Available measurement techniques for evaluation of global and local phase holdups, instantaneous and average phase velocities and for the determination of bubble sizes in gas-liquid and gas-liquid-solid systems are reviewed. Advantages and disadvantages of various techniques are discussed. Particular emphasis is placed on identifying methods that can be employed on large scale, thick wall, high pressure and high temperature reactors used in the manufacture of fuels and chemicals from synthesis gas and its derivatives.

Kumar, S.; Dudukovic, M.P.; Toseland, B.A.

1998-01-01T23:59:59.000Z

422

Geometric measures of redundance and irrelevance tradeoff exponent to choose suitable delay times for continuous systems  

E-Print Network (OSTI)

Using the concept of the geometric measures of redundance and irrelevance tradeoff exponent (RITE)}, we present a new method to determine suitable delay times for continuous systems. After applying the RITE algorithm to both simulation and experimental observations, we find the results obtained are close to those obtained from the criterion of the average mutual information (AMI), while the RITE algorithm has the following advantages: simple implementation, reasonable computational cost and robust performance against observational noise.

Xiaodong Luo; Michael Small

2003-12-10T23:59:59.000Z

423

NREL Solar Radiation Research Laboratory (SRRL): Baseline Measurement System (BMS); Golden, Colorado (Data)  

DOE Data Explorer (OSTI)

The SRRL was established at the Solar Energy Research Institute (now NREL) in 1981 to provide continuous measurements of the solar resources, outdoor calibrations of pyranometers and pyrheliometers, and to characterize commercially available instrumentation. The SRRL is an outdoor laboratory located on South Table Mountain, a mesa providing excellent solar access throughout the year, overlooking Denver. Beginning with the basic measurements of global horizontal irradiance, direct normal irradiance and diffuse horizontal irradiance at 5-minute intervals, the SRRL Baseline Measurement System now produces more than 130 data elements at 1-min intervals that are available from the Measurement & Instrumentation Data Center Web site. Data sources include global horizontal, direct normal, diffuse horizontal (from shadowband and tracking disk), global on tilted surfaces, reflected solar irradiance, ultraviolet, infrared (upwelling and downwelling), photometric and spectral radiometers, sky imagery, and surface meteorological conditions (temperature, relative humidity, barometric pressure, precipitation, snow cover, wind speed and direction at multiple levels). Data quality control and assessment include daily instrument maintenance (M-F) with automated data quality control based on real-time examinations of redundant instrumentation and internal consistency checks using NREL's SERI-QC methodology. Operators are notified of equipment problems by automatic e-mail messages generated by the data acquisition and processing system. Radiometers are recalibrated at least annually with reference instruments traceable to the World Radiometric Reference (WRR).

Stoffel, T.; Andreas, A.

424

The DOE Wide Area Measurement System (WAMS) Project -- Demonstration of dynamic information technology for the future power system  

DOE Green Energy (OSTI)

In 1989 the Bonneville Power Administration (BPA) and the Western Power Administration (WAPA) joined the US Department of Energy (DOE) in an assessment of longer-term research and development needs for future electric power system operation. The effort produced a progressively sharper vision of a future power system in which enhanced control and operation are the primary means for serving new customer demands in an environment characterized by increased competition, a wider range of services and vendors, and much narrower operating margins. Technology and infrastructure for real time access to wide area dynamic information were identified as critical path elements in realizing that vision. In 1995 the DOE accordingly launched the Wide Area Measurement System (WAMS) Project jointly with the two Power Marketing Administrations (PMAs) to address these issues in a practical operating environment the western North America power system. The Project draws upon many years of PMA effort and related collaboration among the western utilities, plus an expanding infrastructure that includes regionally involved contractors, universities, and National Laboratories plus linkages to the Electric Power Research Institute (EPRI).

Mittelstadt, W.A. [Bonneville Power Administration (United States); Hauer, J.F. [Pacific Northwest Lab., Richland, WA (United States); Krause, P.E.; Wilson, R.E. [Western Power Administration (United States); Overholt, P.N. [USDOE (United States); Rizy, D.T. [Oak Ridge National Lab., TN (United States)

1995-12-31T23:59:59.000Z

425

A Free-Floating PIV System: Measurements of Small-Scale Turbulence under the Wind Wave Surface  

Science Conference Proceedings (OSTI)

An in situ free-floating underwater miniature particle image velocimetry (UWMPIV) system is developed and applied to measure the structure of turbulence in the aqueous side of the wind wave surface boundary layer. The UWMPIV system provides a ...

Binbin Wang; Qian Liao; Jianen Xiao; Harvey A. Bootsma

2013-07-01T23:59:59.000Z

426

Operator renewal theory and mixing rates for dynamical systems with infinite measure  

E-Print Network (OSTI)

We develop a theory of operator renewal sequences in the context of infinite ergodic theory. For large classes of dynamical systems preserving an infinite measure, we determine the asymptotic behaviour of iterates $L^n$ of the transfer operator. This was previously an intractable problem. Examples of systems covered by our results include (i) parabolic rational maps of the complex plane and (ii) (not necessarily Markovian) nonuniformly expanding interval maps with indifferent fixed points. In addition, we give a particularly simple proof of pointwise dual ergodicity (asymptotic behaviour of $\\sum_{j=1}^nL^j$) for the class of systems under consideration. In certain situations, including Pomeau-Manneville intermittency maps, we obtain higher order expansions for $L^n$ and rates of mixing. Also, we obtain error estimates in the associated Dynkin-Lamperti arcsine laws.

Melbourne, Ian

2010-01-01T23:59:59.000Z

427

Critical processes and performance measures for patient safety systems in healthcare institutions: a Delphi study  

E-Print Network (OSTI)

This dissertation study presents a conceptual framework for implementing and assessing patient safety systems in healthcare institutions. The conceptual framework consists of critical processes and performance measures identified in the context of the 2003 Malcolm Baldrige National Quality Award (MBNQA) Health Care Criteria for Performance Excellence. Methodology: The Delphi technique for gaining consensus from a group of experts and forecasting significant issues in the field of the Delphi panel expertise was used. Data collection included a series of questionnaires where the first round questionnaire was based on literature review and the MBNQA criteria for excellence in healthcare, and tested by an instrument review panel of experts. Twenty-three experts (MBNQA healthcare reviewers and senior healthcare administrators from quality award winning institutions) representing 18 states participated in the survey rounds. The study answered three research questions: (1) What are the critical processes that should be included in healthcare patient safety systems? (2) What are the performance measures that can serve as indicators of quality for the processes critical for ensuring patient safety? (3) What processes will be critical for patient safety in the future? The identified patient safety framework was further transformed into a patient safety tool with three levels: basic, intermediate, and advanced. Additionally, the panel of experts identified the major barriers to the implementation of patient safety systems in healthcare institutions. The identified "top seven" barriers were directly related to critical processes and performance measures identified as "important" or "very important" for patient safety systems in the present and in the future. This dissertation study is significant because the results are expected to assist healthcare institutions seeking to develop high quality patient safety programs, processes and services. The identified critical processes and performance measures can serve as a means of evaluating existing patient safety initiatives and guiding the strategic planning of new safety processes. The framework for patient safety systems utilizes a systems approach and will support healthcare senior administrators in achieving and sustaining improvement results. The identified patient safety framework will also assist healthcare institutions in using the MBNQA Health Care Criteria for Performance Excellence for self-assessment and quality improvement.

Akins, Ralitsa B.

2004-08-01T23:59:59.000Z

428

Use of aerial videography to evaluate the effects of Flaming Gorge Dam operations on natural resources of the Green River  

DOE Green Energy (OSTI)

Peaking hydropower operations can profoundly alter natural stream flow and thereby affect the natural resources dependent on these flows. In this paper, we describe how aerial videography was used to collect environmental data and evaluate impacts of hydropower operations at Flaming Gorge Dam on natural resources of the Green River. An airborne multispectral video/radiometer remote sensing system was used to collect resource data under four different flow conditions from seven sites (each about one mile in length) located downstream from the dam. Releases from Flaming Gorge Dam during data collection ranged from approximately 800 to 4,000 cubic feet/sec (cfs), spanning most of the normal operating range for this facility. For each site a series of contiguous, non-overlapping images was prepared from the videotapes and used to quantify surface water area, backwater habitats, and areas of riparian vegetation under varying flow conditions. From this information, relationships between flow and habitat parameters were developed and used in conjunction with hydrologic modeling and ecological information to evaluate impacts of various modes of operation.

Snider, M.A.; Hayse, J.W.; Hlohowskyj, I.; LaGory, K.E.; Greaney, M.M.; Kuiper, J.A.; Van Lonkhuyzen, R.A.

1993-07-01T23:59:59.000Z

429

Assess the Efficacy of an Aerial Distant Observer Tool Capable of Rapid Analysis of Large Sections of Collector Fields: FY 2008 CSP Milestone Report, September 2008  

DOE Green Energy (OSTI)

We assessed the feasibility of developing an aerial Distant Observer optical characterization tool for collector fields in concentrating solar power plants.

Jorgensen, G.; Burkholder, F.; Gray, A.; Wendelin, T.

2009-02-01T23:59:59.000Z

430

Assessing responses of humpback whales to North Pacific Acoustic Laboratory (NPAL) transmissions: Results of 2001–2003 aerial surveys north of Kauai  

Science Conference Proceedings (OSTI)

Eight aerial surveys were flown north of the Hawaiian island of Kauai during 2001 when the North Pacific Acoustic Laboratory (NPAL) source was not transmitting

Joseph R. Mobley Jr.

2005-01-01T23:59:59.000Z

431

Method and system of measuring ultrasonic signals in the plane of a moving web  

DOE Patents (OSTI)

An improved system for measuring the velocity of ultrasonic signals within the plane of moving web-like materials, such as paper, paperboard and the like is disclosed. In addition to velocity measurements of ultrasonic signals in the plane of the web in the machine direction, MD, and a cross direction, CD, generally perpendicular to the direction of the traveling web, therefore, one embodiment of the system in accordance with the present invention is also adapted to provide on-line indication of the polar specific stiffness of the moving web. In another embodiment of the invention, the velocity of ultrasonic signals in the plane of the web are measured by way of a plurality of ultrasonic transducers carried by synchronously driven wheels or cylinders, thus eliminating undue transducer wear due to any speed differences between the transducers and the web. In order to provide relatively constant contact force between the transducers and the webs, the transducers are mounted in a sensor housings which include a spring for biasing the transducer radially outwardly. The sensor housings are adapted to be easily and conveniently mounted to the carrier to provide a relatively constant contact force between the transducers and the moving web. 37 figs.

Hall, M.S.; Jackson, T.G.; Wink, W.A.; Knerr, C.

1996-02-27T23:59:59.000Z

432

Method and system of measuring ultrasonic signals in the plane of a moving web  

DOE Patents (OSTI)

An improved system for measuring the velocity of ultrasonic signals within the plane of moving web-like materials, such as paper, paperboard and the like. In addition to velocity measurements of ultrasonic signals in the plane of the web in the machine direction, MD, and a cross direction, CD, generally perpendicular to the direction of the traveling web, therefor, one embodiment of the system in accordance with the present invention is also adapted to provide on-line indication of the polar specific stiffness of the moving web. In another embodiment of the invention, the velocity of ultrasonic signals in the plane of the web are measured by way of a plurality of ultrasonic transducers carried by synchronously driven wheels or cylinders, thus eliminating undue transducer wear due to any speed differences between the transducers and the web. In order to provide relatively constant contact force between the transducers and the webs, the transducers are mounted in a sensor housings which include a spring for biasing the transducer radially outwardly. The sensor housings are adapted to be easily and conveniently mounted to the carrier to provide a relatively constant contact force between the transducers and the moving web.

Hall, Maclin S. (Marietta, GA); Jackson, Theodore G. (Atlanta, GA); Wink, Wilmer A. (Appleton, WI); Knerr, Christopher (Lawrenceville, GA)

1996-01-01T23:59:59.000Z

433

Field measurement of the interactions between heat pumps and attic duct systems in residential buildings  

SciTech Connect

Research efforts to improve residential heat-pump performance have tended to focus on laboratory and theoretical studies of the machine itself, with some limited field research having been focused on in-situ performance and installation issues. One issue that has received surprisingly little attention is the interaction between the heat pump and the duct system to which it is connected. This paper presents the results of a field study that addresses this interaction. Field performance measurements before and after sealing and insulating the duct systems were made on three heat pumps. From the pre-retrofit data it was found that reductions in heat-pump capacity due to low outdoor temperatures and/or coil frosting are accompanied by lower duct-system energy delivery efficiencies. The conduction loss reductions, and thus the delivery temperature improvements, due to adding duct insulation were found to vary widely depending on the length of the particular duct section, the thermal mass of that duct section, and the cycling characteristics of the heat-pump. In addition, it was found that the use of strip-heat back-up decreased after the retrofits, and that heat-pump cycling increased dramatically after the retrofits, which respectively increase and decrease savings due to the retrofits. Finally, normalized energy use for the three systems which were operated consistently pre- and post-retrofit showed an average reduction of 19% after retrofit, which corresponds to a chance in overall distribution-system efficiency of 24%.

Modera, M.P.; Jump, D.A. [Lawrence Berkeley Lab., CA (United States). Energy and Environment Div.

1994-11-01T23:59:59.000Z

434

Indicators for assessing socioeconomic sustainability of bioenergy systems: A short list of practical measures.  

Science Conference Proceedings (OSTI)

Indicators are needed to assess both socioeconomic and environmental sustainability of bioenergy systems. Effective indicators can help to identify and quantify the sustainability attributes of bioenergy options. We identify 16 socioeconomic indicators that fall into the categories of social well-being, energy security, trade, profitability, resource conservation, and social acceptability. The suite of indicators is predicated on the existence of basic institutional frameworks to provide governance, legal, regulatory and enforcement services. Indicators were selected to be practical, sensitive to stresses, unambiguous, anticipatory, predictive, calibrated with known variability, and sufficient when considered collectively. The utility of each indicator, methods for its measurement, and applications appropriate for the context of particular bioenergy systems are described along with future research needs. Together, this suite of indicators is hypothesized to reflect major socioeconomic effects of the full supply chain for bioenergy, including feedstock production and logistics, conversion to biofuels, biofuel logistics and biofuel end uses. Ten of those 16 indicators are proposed to be the minimum list of practical measures of socioeconomic aspects of bioenergy sustainability. Coupled with locally-prioritized environmental indicators, we propose that these socioeconomic indicators can provide a basis to quantify and evaluate sustainability of bioenergy systems across many regions in which they will be deployed.

Davis, Maggie R [ORNL; Downing, Mark [ORNL; Dale, Virginia H [ORNL; Efroymson, Rebecca Ann [ORNL; Hilliard, Michael R [ORNL; Kline, Keith L [ORNL; Langholtz, Matthew H [ORNL; Leiby, Paul Newsome [ORNL; Oladosu, Gbadebo A [ORNL

2013-01-01T23:59:59.000Z

435

An Airborne and Wind Tunnel Evaluation of a Wind Turbulence Measurement System for Aircraft-Based Flux Measurements  

Science Conference Proceedings (OSTI)

Although the ability to measure vertical eddy fluxes of gases from aircraft platforms represents an important capability to obtain spatially resolved data, accurate and reliable determination of the turbulent vertical velocity presents a great ...

K. E. Garman; K. A. Hill; P. Wyss; M. Carlsen; J. R. Zimmerman; B. H. Stirm; T. Q. Carney; R. Santini; P. B. Shepson

2006-12-01T23:59:59.000Z

436

Efficiency Measures  

NLE Websites -- All DOE Office Websites (Extended Search)

recommended steam system energy efficiency measures Based on analyses implementation of steam system energy efficiency measures is driven primarily by cost metrics payback period...

437

Flow measurement and characterization in shallow geothermal systems used for downhole heat exchanger applications  

DOE Green Energy (OSTI)

In the largest non-electrical application of geothermal energy presently occurring in the United States, over 400 relatively shallow wells are being used for extraction of energy with downhole heat exchangers. Despite this large amount of application, the exact nature of the flows in the wells has not before been characterized. Knowledge to date on the nature of flows in the systems is summarized, and an ongoing experimental program for making appropriate downhole measurements to determine flows is described in detail. Flow characterization was a principal object of this study. Horizontal cross-flows of geothermal fluid may occur at upper and/or lower levels in the well where perforations in the well casing are situated. In addition, natural convection may induce vertical flows within the well casing which would be influenced by the presence or absence of a heat exchanger. Three main aspects of the experimental program are reported on: (i) a review of potentially applicable methods for measuring vertical and horizontal flows in wells, (ii) the limitations and preliminary results of using a vane anemometer for measuring vertical flows, and (iii) the description of the selected hot-film probe, its associated pressurized calibration facility, and means of making well measurements.

Churchill, D.; Culver, G.G.; Reistad, G.M.

1977-01-01T23:59:59.000Z

438

Measuring Flops on BG/P Systems | Argonne Leadership Computing Facility  

NLE Websites -- All DOE Office Websites (Extended Search)

Tuning and Analysis Utilities (TAU) Rice HPC Toolkit IBM HPCT Mpip gprof Profiling Tools Darshan PAPI High Level UPC API Low Level UPC API UPC Hardware BG/P dgemm Performance Tuning MPI on BGP Performance FAQs IBM References Software and Libraries Tukey Eureka / Gadzooks Policies Documentation Feedback Please provide feedback to help guide us as we continue to build documentation for our new computing resource. [Feedback Form] Measuring Flops on BG/P Systems Generally speaking, BlueGene/P does not have a single command to return the job's number of floating point operations per second (Flops). The problem can partly be solved by using high-level hardware counter interface library, located in /soft/apps/UPC. An example program measures performance of a simple Y(N) = Y(N) + a * X(N)

439

PROMETHEE: An Alpha Low Level Waste Assay System Using Passive and Active Neutron Measurement Methods  

Science Conference Proceedings (OSTI)

The development of a passive-active neutron assay system for alpha low level waste characterization at the French Atomic Energy Commission is discussed. Less than 50 Bq[{alpha}] (about 50 {mu}g Pu) per gram of crude waste must be measured in 118-l 'European' drums in order to reach the requirements for incinerating wastes. Detection limits of about 0.12 mg of effective {sup 239}Pu in total active neutron counting, and 0.08 mg of effective {sup 239}Pu coincident active neutron counting, may currently be detected (empty cavity, measurement time of 15 min, neutron generator emission of 1.6 x 10{sup 8} s{sup -1} [4{pi}]). The most limiting parameters in terms of performances are the matrix of the drum - its composition (H, Cl...), its density, and its heterogeneity degree - and the localization and self-shielding properties of the contaminant.

Passard, Christian [French Atomic Energy Commission, C.E.A. Cadarache (France); Mariani, Alain [French Atomic Energy Commission, C.E.A. Cadarache (France); Jallu, Fanny [French Atomic Energy Commission, C.E.A. Cadarache (France); Romeyer-Dherbey, Jacques [French Atomic Energy Commission, C.E.A. Cadarache (France); Recroix, Herve [French Atomic Energy Commission, C.E.A. Cadarache (France); Rodriguez, Michel [French Atomic Energy Commission, C.E.A. Cadarache (France); Loridon, Joel [French Atomic Energy Commission, C.E.A. Cadarache (France); Denis, Caroline [French Atomic Energy Commission, C.E.A. Cadarache (France); Toubon, Herve [COGEMA (France)

2002-12-15T23:59:59.000Z

440

Assessment of cover systems at the Grand Junction, Colorado, uranium mill tailings pile: 1987 field measurements  

SciTech Connect

Four Pacific Northwest Laboratory (PNL) scientists and a technician conducted an onsite evaluation of radon gas exhalation, water content profiles, and plant and animal intrusion for a series of cover systems located on the uranium mill tailings pile at Grand Junction, Colorado. These six plots were sampled extensively down to the radon control layer (e.g., asphalt or wet clay) for soil moisture content and permeability. Radon gas emission through the surface was measured. Soil samples were collected and analyzed in the lab for particle-size distribution, particle density, bulk density, and ambient water content. Prairie dog burrows were excavated to discover the extent to which they penetrated the barriers. Plant type, density, and cover characteristics were measured.

Gee, G.W.; Campbell, M.D.; Freeman, H.D.; Cline, J.F.

1989-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "aerial measuring system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Pulse Analysis Spectroradiometer System for Measuring the Spectral Distribution of Flash Solar Simulators: Preprint  

DOE Green Energy (OSTI)

Flashing artificial light sources are used extensively in photovoltaic module performance testing and plant production lines. There are several means of attempting to measure the spectral distribution of a flash of light; however, many of these approaches generally capture the entire pulse energy. We report here on the design and performance of a system to capture the waveform of flash at individual wavelengths of light. Any period within the flash duration can be selected, over which to integrate the flux intensity at each wavelength. The resulting spectral distribution is compared with the reference spectrum, resulting in a solar simulator classification.

Andreas, A. M.; Myers, D. R.

2008-07-01T23:59:59.000Z

442

Complete analysis of measurement-induced entanglement localization on a three-photon system  

Science Conference Proceedings (OSTI)

We discuss both theoretically and experimentally elementary two-photon polarization entanglement localization after break of entanglement caused by linear coupling of environmental photon with one of the system photons. The localization of entanglement is based on simple polarization measurement of the surrounding photon after the coupling. We demonstrate that nonzero entanglement can be localized back irrespectively to the distinguishability of coupled photons. Further, it can be increased by local single-copy polarization filters up to an amount violating Bell inequalities. The present technique allows restoration of entanglement in those cases, when the entanglement distillation produces no entanglement from the coupling.

Gavenda, Miroslav; Filip, Radim [Department of Optics, Palacky University, 17. listopadu 12, CZ-77146 Olomouc (Czech Republic); Nagali, Eleonora [Dipartimento di Fisica, Sapienza Universita di Roma, piazzale Aldo Moro 5, I-00185 Roma (Italy); Sciarrino, Fabio [Dipartimento di Fisica, Sapienza Universita di Roma, piazzale Aldo Moro 5, I-00185 Roma (Italy); Istituto Nazionale di Ottica Applicata, Largo E. Fermi 6, I-50125 Firenze (Italy); Martini, Francesco De [Dipartimento di Fisica, Sapienza Universita di Roma, piazzale Aldo Moro 5, I-00185 Roma (Italy); Academia Nazionale dei Lincei, Via della Lungara 10, I-00165 Roma (Italy)

2010-02-15T23:59:59.000Z

443

36Cl/Cl ratios in geothermal systems: preliminary measurements from the Coso Field  

DOE Green Energy (OSTI)

The {sub 36}Cl/Cl isotopic composition of chlorine in geothermal systems can be a useful diagnostic tool in characterizing hydrologic structure, in determining the origins and age of waters within the systems, and in differentiating the sources of chlorine (and other solutes) in the thermal waters. The {sub 36}Cl/Cl values for several geothermal water samples and reservoir host rock samples from the Coso, California geothermal field have been measured for these purposes. The results indicate that most of the chlorine is not derived from the dominant granitoid that host the geothermal system. If the chlorine was originally input into the Coso subsurface through meteoric recharge, that input occurred at least 1-1.25 million years ago. The results suggest that the thermal waters could be connate waters derived from sedimentary formations, presumably underlying and adjacent top the granitic rocks, which have recently migrated into the host rocks. Alternatively, most of the chlorine but not the water, may have recently input into the system from magmatic sources. In either case, the results indicate that most of the chlorine in the thermal waters has existed within the granitoid host rocks for no more than about 100,00-200,00 years. this residence time for the chlorine is similar to residence times suggested by other researchers for chlorine in deep groundwaters of the Mono Basin north of the Coso field.

Nimz, G.J.; Moore, J.N.; Kasameyer, P.W.

1997-07-01T23:59:59.000Z

444

ARM - Measurements  

NLE Websites -- All DOE Office Websites (Extended Search)

Select below to highlight measurements in specified measurement categories. Aerosols The effect of aerosols is measured by instrument systems and lidars that provide data...

445

Method and system for measuring multiphase flow using multiple pressure differentials  

DOE Patents (OSTI)

An improved method and system for measuring a multiphase flow in a pressure flow meter. An extended throat venturi is used and pressure of the multiphase flow is measured at three or more positions in the venturi, which define two or more pressure differentials in the flow conduit. The differential pressures are then used to calculate the mass flow of the gas phase, the total mass flow, and the liquid phase. The method for determining the mass flow of the high void fraction fluid flow and the gas flow includes certain steps. The first step is calculating a gas density for the gas flow. The next two steps are finding a normalized gas mass flow rate through the venturi and computing a gas mass flow rate. The following step is estimating the gas velocity in the venturi tube throat. The next step is calculating the pressure drop experienced by the gas-phase due to work performed by the gas phase in accelerating the liquid phase between the upstream pressure measuring point and the pressure measuring point in the venturi throat. Another step is estimating the liquid velocity in the venturi throat using the calculated pressure drop experienced by the gas-phase due to work performed by the gas phase. Then the friction is computed between the liquid phase and a wall in the venturi tube. Finally, the total mass flow rate based on measured pressure in the venturi throat is calculated, and the mass flow rate of the liquid phase is calculated from the difference of the total mass flow rate and the gas mass flow rate.

Fincke, James R. (Idaho Falls, ID)

2001-01-01T23:59:59.000Z

446

System for measuring the coordinates of tire surfaces in transient conditions when rolling over obstacles: Description of the system and performance analysis  

Science Conference Proceedings (OSTI)

This paper describes the development of a system for measuring surface coordinates (commonly known as ''shape measurements'') which is able to give the temporal evolution of the position of the tire sidewall in transient conditions (such as during braking, when there are potholes or when the road surface is uneven) which may or may not be reproducible. The system is based on the well-known technique of projecting and observing structured light using a digital camera with an optical axis which is slanted with respect to the axis of the projector. The transient nature of the phenomenon has led to the development of specific innovative solutions as regards image processing algorithms. This paper briefly describes the components which make up the measuring system and presents the results of the measurements carried out on the drum bench. It then analyses the performance of the measuring system and the sources of uncertainty which led to the development of the system for a specific dynamic application: impact with an obstacle (cleat test). The measuring system guaranteed a measurement uncertainty of 0.28 mm along the Z axis (the axial direction of the tire) with a measurement range of 250(X)x80(Y)x25(Z) mm{sup 3}, with the tire rolling at a speed of up to 30 km/h.

Castellini, Paolo; Di Giuseppe, Andrea [Dipartimento di Meccanica, Universita Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona (Italy)

2008-06-15T23:59:59.000Z

447

CO{sub 2} flux measurements across portions of the Dixie Valley geothermal system, Nevada  

DOE Green Energy (OSTI)

A map of the CO{sub 2} flux across a newly formed area of plant kill in the NW part of the Dixie Valley geothermal system was constructed to monitor potential growth of a fumarole field. Flux measurements were recorded using a LI-COR infrared analyzer. Sample locations were restricted to areas within and near the dead zone. The data delineate two areas of high CO{sub 2} flux in different topographic settings. Older fumaroles along the Stillwater range front produce large volumes of CO{sub 2} at high temperatures. High CO{sub 2} flux values were also recorded at sites along a series of recently formed ground fractures at the base of the dead zone. The two areas are connected by a zone of partial plant kill and moderate flux on an alluvial fan. Results from this study indicate a close association between the range front fumaroles and the dead zone fractures. The goals of this study are to characterize recharge to the geothermal system, provide geochemical monitoring of reservoir fluids and to examine the temporal and spatial distribution of the CO{sub 2} flux in the dead zone. This paper reports the results of the initial CO{sub 2} flux measurements taken in October, 1997.

Bergfeld, D.; Goff, F. [Los Alamos National Lab., NM (United States). Earth and Environmental Sciences Div.; Janik, C.J. [Geological Survey, Menlo Park, CA (United States); Johnson, S.D. [Oxbow Power Services, Reno, NV (United States)

1998-12-31T23:59:59.000Z

448

Protocol for uniformly measuring and expressing the performance of energy storage systems.  

SciTech Connect

The U.S. Department of Energy's Energy Storage Systems (ESS) Program, through the support of Pacific Northwest National Laboratory (PNNL) and Sandia National Laboratories (SNL), facilitated the development of the protocol provided in this report. The focus of the protocol is to provide a uniform way of measuring, quantifying, and reporting the performance of ESSs in various applications; something that does not exist today and, as such, is hampering the consideration and use of this technology in the market. The availability of an application-specific protocol for use in measuring and expressing performance-related metrics of ESSs will allow technology developers, power-grid operators and other end-users to evaluate the performance of energy storage technologies on a uniform and comparable basis. This will help differentiate technologies and products for specific application(s) and provide transparency in how performance is measured. It also will assist utilities and other consumers of ESSs to make more informed decisions as they consider the potential application and use of ESSs, as well as form the basis for documentation that might be required to justify utility investment in such technologies.

Ferreira, Summer Rhodes; Rose, David Martin; Schoenwald, David Alan; Bray, Kathy [Pacific Northwest National Laboratory, Richland, WA; Conover, David [Pacific Northwest National Laboratory, Richland, WA; Kintner-Meyer, Michael [Pacific Northwest National Laboratory, Richland, WA; Viswanathan, Vilayanur [Pacific Northwest National Laboratory, Richland, WA

2013-08-01T23:59:59.000Z

449

Protocol for Uniformly Measuring and Expressing the Performance of Energy Storage Systems  

Science Conference Proceedings (OSTI)

The U.S. Department of Energy’s Energy Storage Systems (ESS) Program, through the support of Pacific Northwest National Laboratory (PNNL) and Sandia National Laboratories (SNL), facilitated the development of the protocol provided in this report. The focus of the protocol is to provide a uniform way of measuring, quantifying, and reporting the performance of EESs in various applications; something that does not exist today and, as such, is hampering the consideration and use of this technology in the market. The availability of an application-specific protocol for use in measuring and expressing performance-related metrics of ESSs will allow technology developers, power-grid operators and other end-users to evaluate the performance of energy storage technologies on a uniform and comparable basis. This will help differentiate technologies and products for specific application(s) and provide transparency in how performance is measured. It also will assist utilities and other consumers of ESSs make more informed decisions as they consider the potential application and use of ESSs, as well as form the basis for documentation that might be required to justify utility investment in such technologies.

Bray, Kathryn L.; Conover, David R.; Kintner-Meyer, Michael CW; Viswanathan, Vijayganesh; Ferreira, Summer; Rose, David; Schoenwald, David

2012-10-01T23:59:59.000Z

450

Determination of Ionospheric Current Systems by Measuring the Phase Shift on Amateur Satellite Frequencies  

E-Print Network (OSTI)

We investigate the possibility of measuring and using the phase delay of radio frequency transmissions in the amateur satellite band as a method to determine the distribution of currents systems in the ionosphere. The amateur satellite transmissions at 7M Hz, 14M Hz, and 144M Hz are low enough for Faraday rotation to cause a significant phase delay on the propagating signals in addition to the phase delay produced by the total electron content (TEC) in the ionosphere. The ionosphere in the E and F regions is modeled as an equivalent thin planar shell of collision free cold plasma 100 km in thickness located in an altitude range of 100 ? 200 km. The earth’s magnetic field is superposed with a weaker magnetic field due to a narrow Gaussian strip of current representing an ionospheric electrojet. The profile of the current system is obtained by numerically optimizing the Appleton-Hartree dispersion relation for rays of simulated radio frequency (RF) signals that propagate through the ionosphere shell. The optimization procedure is performed with a differential evolution algorithm. From the optimization procedure, we obtain the ionosphere total electron content (TEC) and the strength, profile, and orientation of the ionospheric current system. (53 pages) iv

Prajwal M Kasturi

2013-01-01T23:59:59.000Z

451

Environmental Measurement While Drilling System for Real-Time Field Screening of Contaminants  

Science Conference Proceedings (OSTI)

Sampling during environmental drilling is essential to fully characterize the spatial distribution and migration of subsurface contaminants. However, analysis of the samples is expensive and time-consuming: off-site laboratory analysis can take weeks or months. Real-time information on environmental conditions, drill bit location and temperature during drilling is valuable in many environmental restoration operations. This type of information can be used to provide field screening data and improved efficiency of site characterization activities. The Environmental Measurement-While-Drilling (EMWD) System represents an innovative blending of new and existing technology in order to obtain real-time data during drilling. The system consists of two subsystems. The down-hole subsystem (at the drill bit) consists of sensors, a power supply, a signal conditioning and transmitter board, and a radio-frequency (RF) coaxial cable. The up-hole subsystem consists of a battery pack/coil, pickup coil, receiver, and personal computer. The system is compatible with fluid miser drill pipe, a directional drilling technique that uses minimal drilling fluids and generates little to no secondary waste. In EMWD, downhole sensors are located behind the drill bit and linked by a high-speed data transmission system to a computer at the surface. Sandia-developed Windows{trademark}-based software is used for data display and storage. As drilling is conducted, data is collected on the nature and extent of contamination, enabling on-the-spot decisions regarding drilling and sampling strategies. Initially, the downhole sensor consisted of a simple gamma radiation detector, a Geiger-Mueller tube (GMT). The design includes data assurance techniques to increase safety by reducing the probability of giving a safe indication when an unsafe condition exists. The EMWD system has been improved by the integration of a Gamma Ray Spectrometer (GRS) in place of the GMT. The GRS consists of a sodium iodide-thallium activated crystal coupled to a photomultiplier tube (PMT). The output of the PMT goes to a multichannel analyzer (MCA).The MCA data is transmitted to the surface via a signal conditioning and transmitter board similar to that used with the GMT. The EMWD system is described and the results of the GRS field tests and field demonstration are presented.

Lockwood, G.J.; Normann, R.A.; Williams, C.V.

1999-02-22T23:59:59.000Z

452

An alpha particle measurement system using an energetic neutral helium beam in ITER (invited)  

Science Conference Proceedings (OSTI)

An energetic helium neutral beam is involved in the beam neutralization measurement system of alpha particles confined in a DT fusion plasma. A full size strong-focusing He{sup +} ion source (2 A, the beam radius of 11.3 mm, the beam energy less than 20 keV). Present strong-focusing He{sup +} ion source shows an emittance diagram separated for each beamlet of multiple apertures without phase space mixing, despite the space charge of a beamlet is asymmetric and the beam flow is non-laminar. The emittance of beamlets in the peripheral region was larger than that of center. The heat load to the plasma electrode was studied to estimate the duty factor for the ITER application.

Sasao, M.; Tanaka, N.; Terai, K.; Kaneko, O. [Graduate school of Engineering, Tohoku University, Sendai 980-8579 (Japan); Kisaki, M.; Kobuchi, T.; Tsumori, K.; Okamoto, A.; Kitajima, S. [National Institute for Fusion Science, Toki, Gifu 509-5292 (Japan); Shinto, K. [IFMIF R and D Center, Japan Atomic Energy Agency, Rokkasho, Aomori 039-3212 (Japan); Wada, M. [Graduate School of Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321 (Japan)

2012-02-15T23:59:59.000Z

453

Systems and methods for optically measuring properties of hydrocarbon fuel gases  

DOE Patents (OSTI)

A system and method for optical interrogation and measurement of a hydrocarbon fuel gas includes a light source generating light at near-visible wavelengths. A cell containing the gas is optically coupled to the light source which is in turn partially transmitted by the sample. A spectrometer disperses the transmitted light and captures an image thereof. The image is captured by a low-cost silicon-based two-dimensional CCD array. The captured spectral image is processed by electronics for determining energy or BTU content and composition of the gas. The innovative optical approach provides a relatively inexpensive, durable, maintenance-free sensor and method which is reliable in the field and relatively simple to calibrate. In view of the above, accurate monitoring is possible at a plurality of locations along the distribution chain leading to more efficient distribution. 14 figs.

Adler-Golden, S.; Bernstein, L.S.; Bien, F.; Gersh, M.E.; Goldstein, N.

1998-10-13T23:59:59.000Z

454

Elastic scattering measurements for {sup 7}Be+{sup 27}Al system at RIBRAS facility  

SciTech Connect

Elastic scattering angular distribution measurements of {sup 7}Be+{sup 27}Al system were performed at the laboratory energy of 15.6 MeV. The {sup 7}Be secondary beam was produced by the proton transfer reaction {sup 3}He({sup 6}Li,{sup 7}Be) and impinged on {sup 27}Al and {sup 197}Au targets, using the Radioactive Ion Beam (RIB) facility, RIBRAS. The elastic angular distribution was obtained within the angular range of 15{sup 0} - 80{sup 0} at the center of mass frame. Optical model calculations have been performed using the Woods- Saxon form factors and the Sao Paulo potential to fit the experimental data. The total reaction cross section was derived.

Morcelle, V. [Instituto de Fisica - Universidade Federal Fluminense, 24210-346, Rio de Janeiro (Brazil) and Depto de Fisica Nuclear, Universidade de Sao Paulo, C.P. 66318, 05389-970, Sao Paulo (Brazil); Lichtenthaeler, R.; Morais, M. C.; Lepine-Szily, A.; Guimaraes, V.; Faria, P. N. de; Gasques, L.; Pires, K. C. C.; Condori, R. P. [Depto de Fisica Nuclear, Universidade de Sao Paulo, C. P. 66318, 05389-970, Sao Paulo (Brazil); Gomes, P. R. S.; Lubian, J.; Mendes, D. R. Jr. [Instituto de Fisica - Universidade Federal Fluminense, 24210-346, Rio de Janeiro (Brazil); Barioni, A. [Instituto de Fisica, Universidade Federal da Bahia, 40210-340, Bahia (Brazil); Shorto, J. M. B. [Instituto de Pesquisas Energeticas e Nucleares- IPEN, 05508-000, Sao Paulo (Brazil); Zamora, J. C. [Departament of Physics, Technische Universitaet Darmstadt (Germany)

2013-05-06T23:59:59.000Z

455

Using Unmanned Aerial Vehicles to Assess Vegetative Cover and Identify Biotic Resources in Sagebrush Steppe Ecosystems: Preliminary Evaluation  

SciTech Connect

The Idaho National Laboratory (INL), in conjunction with the University of Idaho, is evaluating novel approaches for using unmanned aerial vehicles (UAVs) as a quicker and safer method for monitoring biotic resources. Evaluating vegetative cover is an important factor in understanding the sustainability of many ecosystems. In assessing vegetative cover, methods that improve accuracy and cost efficiency could revolutionize how biotic resources are monitored on western federal lands. Sagebrush steppe ecosystems provide important habitat for a variety of species, some of which are important indicator species (e.g., sage grouse). Improved methods are needed to support monitoring these habitats because there are not enough resource specialists or funds available for comprehensive ground evaluation of these ecosystems. In this project, two types of UAV platforms (fixed wing and helicopter) were used to collect still-frame imagery to assess cover in sagebrush steppe ecosystems. This paper discusses the process for collecting and analyzing imagery from the UAVs to (1) estimate total percent cover, (2) estimate percent cover for six different types of vegetation, and (3) locate sage grouse based on representative decoys. The field plots were located on the INL site west of Idaho Falls, Idaho, in areas with varying amounts and types of vegetative cover. A software program called SamplePoint developed by the U.S. Department of Agriculture, Agricultural Research Service was used to evaluate the imagery for percent cover for the six vegetation types (bare ground, litter, shrubs, dead shrubs, grasses, and forbs). Results were compared against standard field measurements to assess accuracy.

Robert P. Breckenridge

2006-04-01T23:59:59.000Z

456

Design and characterization of Hover Nano Aerial Vehicle (HNAV) propulsion system  

E-Print Network (OSTI)

On October 4th 2005, DARPA released a request for proposals for a Nano-Air Vehicle (NAV) program. The program sought to develop an advanced urban reconnaissance vehicle. According the requirement imposed by DARPA, the NAV ...

Sato, Sho, Ph. D. Massachusetts Institute of Technology

2008-01-01T23:59:59.000Z

457

Safety considerations for operation of different classes of unmanned aerial vehicles in the National Airspace System  

E-Print Network (OSTI)

There is currently a broad effort underway in the United States and internationally by several organizations to craft regulations enabling the safe operation of UAVs in the NAS. Current federal regulations governing unmanned ...

Weibel, Roland E. (Roland Everett)

2005-01-01T23:59:59.000Z

458

Safety Considerations for Operation of Unmanned Aerial Vehicles in the National Airspace System  

E-Print Network (OSTI)

There is currently a broad effort underway in the United States and internationally by several organizations to craft regulations enabling the safe operation of UAVs in the NAS. Current federal regulations governing unmanned ...

Weibel, Roland E

2006-11-21T23:59:59.000Z

459

Experimental Dependability Evaluation of a Fail-Bounded Jet Engine Control System for Unmanned Aerial Vehicles  

E-Print Network (OSTI)

to the Boeing X45 variants B and C [2], which use a similar engine (F404-GE- 102D). The controller decreased. Previously, such upsets mainly occurred in electronic equipment in space because of heavy

Karlsson, Johan

460

Twilight Irradiance Reflected by the Earth Estimated from Clouds and the Earth's Radiant Energy System (CERES) Measurements  

Science Conference Proceedings (OSTI)

The upward shortwave irradiance at the top of the atmosphere when the solar zenith angle is greater than 90° (twilight irradiance) is estimated from radiance measurements by the Clouds and the Earth's Radiant Energy System (CERES) instrument on ...

Seiji Kato; Norman G. Loeb

2003-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "aerial measuring system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Measurement techniques for local and global fluid dynamic quantities in two and three phase systems  

SciTech Connect

This report presents a critical review of the methods available for assessing the fluid dynamic parameters in large industrial two and three phase bubble column and slurry bubble column reactors operated at high pressure and temperature. The physical principles behind various methods are explained, and the basic design of the instrumentation needed to implement each measurement principle is discussed. Fluid dynamic properties of interest are: gas, liquid and solids holdup and their axial and radial distribution as well as the velocity distribution of the two (bubble column) or three phases (slurry bubble column). This information on operating pilot plant and plant reactors is essential to verify the computational fluid dynamic codes as well as scale-up rules used in reactor design. Without such information extensive and costly scale-up to large reactors that exploit syngas chemistries, and other reactors in production of fuels and chemicals, cannot be avoided. In this report, available measurement techniques for evaluation of global and local phase holdups, instantaneous and average phase velocities and for the determination of bubble sizes in gas-liquid and gas-liquid-solid systems are reviewed. Advantages and disadvantages of various techniques are discussed. Particular emphasis is placed on identifying methods that can be employed on large scale, thick wall, high pressure and high temperature reactors used in the manufacture of fuels and chemicals from synthesis gas and its derivatives.

Kumar, S.; Dudukovic, M.P. [Washington Univ., St. Louis, MO (United States). Chemical Reaction Engineering Lab.; Toseland, B.A. [Air Products and Chemicals, Inc., Lehigh Valley, PA (United States)

1996-03-01T23:59:59.000Z

462

SC/49/SM20 AERIAL SURVEYS OF BELUGA WHALES IN COOK INLET, ALASKA,  

E-Print Network (OSTI)

The National Marine Mammal Laboratory (NMML), in cooperation with the NMFS Alaska Regional Office, the Alaska Beluga Whale Committee (ABWC) and the Cook Inlet Marine Mammal Council (CIMMC), conducted an aerial survey of the beluga whale population in Cook Inlet, Alaska, during 8-10 June 1997. This provided a thorough coverage of the coasts around the entire inlet (1,388 km). Therefore, 100 % of the coastal areas where belugas were expected to be during this season were searched one or more times. The 23 hr survey was flown in a twin-engine, high-wing aircraft at 244 m (800 ft) altitude and 185 km/hr (100 kt) along a trackline 1.4 km from shore. Throughout most of this survey, a test of sighting rates was conducted with multiple independent observers on the coastal (left) side of the plane, where virtually all sightings occur. A single observer and a computer operator/data recorder were on the right side. After finding beluga groups, a series of aerial passes were made to allow at least two pairs of observers to make 4 or more counts of whales. The sum of the aerial estimates (using median counts from each site, not corrected for missed whales) ranged from 217 to 264 whales, depending on survey day. Only 1 beluga whale was found in lower Cook Inlet, 51-73 were counted near the Susitna River, 139-161 were seen in Knik Arm and 26-29 were counted in Chickaloon Bay. Combining data from 1994-97, almost half (46%) of the initial sightings occurred>1.4 km from the aircraft- the perimeter of the standard viewing area- with mean sighting distances of 1.2 km for small groups ( = 20). In only 8 of 59 instances were whale groups>1.4 km from the trackline. Of 106 groups recorded by paired, independent observers in 1994-97, 20 were reported by only one primary observer, while 86 (81%) were reported by both observers.

David J. Rugh; Roderick C. Hobbs; Kim E. W. Shelden; Janice M. Waite

1997-01-01T23:59:59.000Z

463