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Note: This page contains sample records for the topic "tracking concentrator pointed" from the National Library of EnergyBeta (NLEBeta).
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1

Performance analysis of Azimuth Tracking Fixed Mirror Solar Concentrator  

Science Journals Connector (OSTI)

Abstract The fixed mirror solar collector (FMSC) fixes reflector and mobiles receiver to collect solar energy. However, this type of concentrator has a low efficiency and short operating duration in practical applications. In this paper, we propose to install the FMSC on an azimuth tracking device (ATFMSC) and the reflectors are arranged by intermission to avoid the shading of neighbor reflector for incidence angle of less than 10° to improve its optical performance. Through the integration of the reflected solar radiation distribution function over any reflection point, and then the whole collector aperture, we develop the analytical expressions of various system efficiencies to numerically simulate the performance of ATFMSC with evacuated tube receiver in different design parameters. It is validated by the ray tracing results. The result shows that the mean annual net heat efficiency of the whole system would be up to 61% with the operating temperature of 400 °C, which is higher than parabolic trough collector and traditional FMSC. This is because the longitudinal incidence angle of ATFMSC always remains zero by tracking the sun azimuth, so the end loss of the concentrator can be avoided and enables it to operate with high efficiency continually.

Longlong Li; Huairui Li; Qian Xu; Weidong Huang

2015-01-01T23:59:59.000Z

2

Optical performance of an azimuth tracking linear Fresnel solar concentrator  

Science Journals Connector (OSTI)

Abstracts In this paper, a linear Fresnel solar concentrator installed on a solar azimuth tracker is studied. Based on the integration of the effective source distribution for a reflection point and the whole reflector area, we develop an analytical model to calculate the intercept factor of the concentrator and analyze its performance over a year. The prediction of our analytical optical model agrees pretty well with that of the ray tracing program SolTRACE. Then we study the effects of the main design parameters on the performance of the system. The results show that annual mean total efficiency of 61% can be obtained in optimized design when the operational temperature of the receiver is 400 °C. The performance of the azimuth tracking linear Fresnel solar concentrator (ATLFSC) is compared with that of the parabolic trough collector. It is found that the cosine factor, intercept factor and total efficiency of the ATLFSC are better than those of parabolic trough collector, showing that the ATLFSC may have great potential for solar energy utilization.

Farong Huang; Longlong Li; Weidong Huang

2014-01-01T23:59:59.000Z

3

Silicon point contact concentrator solar cells  

SciTech Connect (OSTI)

Experimental results are presented for thin high resistivity concentrator silicon solar cells which use a back-side point-contact geometry. Cells of 130 and 233 micron thickness were fabricated and characterized. The thin cells were found to have efficiencies greater than 22 percent for incident solar intensities of 3 to 30 W/sq cm. Efficiency peaked at 23 percent at 11 W/sq cm measured at 22-25 C. Strategies for obtaining higher efficiencies with this solar cell design are discussed. 8 references.

Sinton, R.A.; Kwark, Y.; Swirhun, S.; Swanson, R.M.

1985-08-01T23:59:59.000Z

4

Feature-Point Detection Using Distance Transforms: Application to Tracking Tropical Convective Complexes  

Science Journals Connector (OSTI)

The identification, tracking, and statistical analysis of tropical convective complexes using satellite imagery is explored in the context of identifying feature points suitable for tracking. The feature points are determined based on the shape ...

K. I. Hodges

1998-03-01T23:59:59.000Z

5

Tracking heat flux sensors for concentrating solar applications  

DOE Patents [OSTI]

Innovative tracking heat flux sensors located at or near the solar collector's focus for centering the concentrated image on a receiver assembly. With flux sensors mounted near a receiver's aperture, the flux gradient near the focus of a dish or trough collector can be used to precisely position the focused solar flux on the receiver. The heat flux sensors comprise two closely-coupled thermocouple junctions with opposing electrical polarity that are separated by a thermal resistor. This arrangement creates an electrical signal proportional to heat flux intensity, and largely independent of temperature. The sensors are thermally grounded to allow a temperature difference to develop across the thermal resistor, and are cooled by a heat sink to maintain an acceptable operating temperature.

Andraka, Charles E; Diver, Jr., Richard B

2013-06-11T23:59:59.000Z

6

RTDS Based Maximal Power Point Tracking Simulation for Doubly-Fed Induction Generator  

Science Journals Connector (OSTI)

In the control of the wind generation, the maximal power point tracking (MPPT) control plays important role in the efficiency. This paper presents the simulation results of the MPPT control with RTDS-based DFIG model. At first, it analyzes the vector-control ... Keywords: Wind energy, DFIG((doubly-fed induction generator), Stator flux-oriented, Maximal power point tracking

Jiamin Zhang; Ancheng Xue; Tianshu Bi

2009-10-01T23:59:59.000Z

7

Thermal phase change actuator for self-tracking solar concentration  

Science Journals Connector (OSTI)

We present a proof of principle demonstration of a reversible in-plane actuator activated by focused sunlight, and describe a concept for its use as a self-tracking mechanism in a...

Tremblay, E J; Loterie, D; Moser, C

2012-01-01T23:59:59.000Z

8

Design criteria for Si point-contact concentrator solar cells  

SciTech Connect (OSTI)

Design criteria for concentrator solar cells are presented for the highly three-dimensional case of backside point-contact solar cells. A recent new experimental result, a 28-percent efficient cell (25/sup 0/C, 15-Wcm/sup 2/ incident power) is used as a case study of the dependences of the recombination components and the carrier density gradients on the geometrical design parameters. The optimum geometry is found to depend upon the intended design power density as well as the attainable physical parameters allowed by the fabrication techniques utilized. Modeling projections indicate that an ultimate efficiency of 30.6 percent (36 Wcm/sup 2/, 300 K) is achievable using the diffused emitters presently employed on these cells. Incorporation of results from the study pf polycrystalline emitters could improve these efficiencies toward 31.7 percent.

Sinton, R.A.; Swanson, R.M.

1987-10-01T23:59:59.000Z

9

The improvement of methods used to estimate radon concentration in air using nuclear track film  

E-Print Network [OSTI]

THE IMPROVEMENT OF METHODS USED TO ESTIMATE RADON CONCENTRATION IN AIR USING NUCLEAR TRACK FILM A Thesis by JAMES G. JESSICK Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE December t 9BB Major Subject: Health Physics THE IMPROVEMENT OF METHODS USED TO ESTIMATE RADON CONCENTRATION IN AIR USING NUCLEAR TRACK FILM A Thesis by JAMES G. JESSICK Approved as to style and content by: Milton E...

Jessick, James G.

2012-06-07T23:59:59.000Z

10

A Distribution-Based Approach to Tracking Points in Velocity Vector Fields Liefei Xu, H. Quynh Dinh  

E-Print Network [OSTI]

vector field points, and show results of tracking points in the simulated flow through a diesel engine Lin School of Electrical Engineering and Computer Science Oregon State University zhange- tors). A fundamental task in flow analysis is the ability to extract features and track their movements

Dinh, H. Quynh

11

A review of maximum power point tracking algorithms for wind energy systems  

Science Journals Connector (OSTI)

This paper reviews state of the art maximum power point tracking (MPPT) algorithms for wind energy systems. Due to the instantaneous changing nature of the wind, it is desirable to determine the one optimal generator speed that ensures maximum energy yield. Therefore, it is essential to include a controller that can track the maximum peak regardless of wind speed. The available MPPT algorithms can be classified as either with or without sensors, as well as according to the techniques used to locate the maximum peak. A comparison has been made between the performance of different MPPT algorithms on the basis of various speed responses and ability to achieve the maximum energy yield. Based on simulation results available in the literature, the optimal torque control (OTC) has been found to be the best MPPT method for wind energy systems due to its simplicity. On the other hand, the perturbation and observation (P&O) method is flexible and simple in implementation, but is less efficient and has difficulties determining the optimum step-size.

M.A. Abdullah; A.H.M. Yatim; C.W. Tan; R. Saidur

2012-01-01T23:59:59.000Z

12

Design of a telescope pointing and tracking subsystem for the Big Bear Solar Observatory New Solar Telescope  

E-Print Network [OSTI]

, California, U.S.A.; bNew Jersey Institute of Technology, Newark, New Jersey, U.S.A. ABSTRACT The New SolarDesign of a telescope pointing and tracking subsystem for the Big Bear Solar Observatory New Solar Telescope J. R. Varsika and G.Yangb aBig Bear Solar Observatory, 40386 North Shore Lane, Big Bear City

13

Maximum power point tracking of permanent magnet wind turbines equipped with direct matrix converter  

Science Journals Connector (OSTI)

This paper presents a novel control method for Maximum Power Point Tracking of wind turbines (WTs) equipped with a Permanent Magnet Synchronous Generator (PMSG) and a Direct Matrix Converter (DMC). The method calculates the optimum wind turbine speed and maximizes the extracted power from wind turbine. This is done by Hill Climb Search method which is simple and does not need to know the generator parameters and no need to solve the complicated differential equations of generator. WT rotor speed is compared with its optimal value and then DMC controls WT until its rotor speed reaches its optimum value. Under this situation maximum power is extracted from WT and is injected to the grid with unity power factor. It is implemented by controlling the phase and the amplitude of the DMC output voltage by Venturini switching method. Simulations are done on a 2?MW PMSG WT in MATLAB/SIMULINK to obtain the results the wind speed was varied both using the Van Der Hoven method and changing the wind step. The obtained results verify the accuracy and simplicity of proposed method.

2014-01-01T23:59:59.000Z

14

Society Evaluation of point defect concentrations in B2-FeAl intermetallic compound  

E-Print Network [OSTI]

Thermal defects are studied for three compositions (49, 50 and 52 at.%Fe) of the intermetallic compound FeAl with B2 structure. Magnetic measurements are used to determine the thermal defect concentrations. These concentrations are determined from fitting the experimental curves of magnetic susceptibility, obtained during an isochronal annealing after a quench. Next we have evaluated theoretically the concentrations of different point defects that exist in this compound. The used model is based in the Bragg-Williams approximation assuming the nearest-neighbour interaction. The calculated concentrations describe well the experimental values. I.

S. Zaroual; O. Sassi; J. Aride; J. Bernardini; G. Moya; Supérieure Takaddoum; B. P. Rabat-morocco

2001-01-01T23:59:59.000Z

15

Evaluation of a photovoltaic energy mechatronics system with a built-in quadratic maximum power point tracking algorithm  

SciTech Connect (OSTI)

The historically high cost of crude oil price is stimulating research into solar (green) energy as an alternative energy source. In general, applications with large solar energy output require a maximum power point tracking (MPPT) algorithm to optimize the power generated by the photovoltaic effect. This work aims to provide a stand-alone solution for solar energy applications by integrating a DC/DC buck converter to a newly developed quadratic MPPT algorithm along with its appropriate software and hardware. The quadratic MPPT method utilizes three previously used duty cycles with their corresponding power outputs. It approaches the maximum value by using a second order polynomial formula, which converges faster than the existing MPPT algorithm. The hardware implementation takes advantage of the real-time controller system from National Instruments, USA. Experimental results have shown that the proposed solar mechatronics system can correctly and effectively track the maximum power point without any difficulties. (author)

Chao, R.M.; Ko, S.H.; Lin, I.H. [Department of Systems and Naval Mechatronics Engineering, National Cheng Kung University, Tainan, Taiwan 701 (China); Pai, F.S. [Department of Electronic Engineering, National University of Tainan (China); Chang, C.C. [Department of Environment and Energy, National University of Tainan (China)

2009-12-15T23:59:59.000Z

16

26-percent efficient point-junction concentrator solar cells with a front metal grid  

SciTech Connect (OSTI)

This paper reports on silicon concentrator cells with point diffusions and metal contacts on both the front and back sides. The design minimizes reflection losses by forming an inverted pyramid topography on the front surface and by shaping the metal grid lines in the form of a triangular ridge. A short-circuit current density of 39.6 mA/cm{sup 2} has been achieved even though the front grid covers 16 percent of the cell's active area of 1.56 cm{sup 2}. This, together with an open-circuit voltage of 700 mV, has led to an efficiency of 22 percent at one sun, AM1.5 global spectrum. Under direct-spectrum, 8.8-W/cm{sup 2}, concentrated light, the efficiency is 26 percent. This is the highest ever reported for a silicon cell having a front metal grid.

Cuevas, A.; Sinton, R.A.; Midkiff, N.E.; Swanson, R.M. (Stanford Univ., CA (USA). Dept. of Electrical Engineering)

1990-01-01T23:59:59.000Z

17

Photovoltaic concentrator using a holographic optical element  

Science Journals Connector (OSTI)

A photovoltaic concentrator is proposed that uses equatorial tracking (the rotation axis of a concentrator points to the North Star), so that the change of the sun’s altitude angle is...

Zhang, Y W; Ih, C S; Yan, H F; Chang, M J

1988-01-01T23:59:59.000Z

18

Comparative study of Non -Tracking and Low Concentrating Photovoltaic systems Using Low -Cost Reflectors.  

E-Print Network [OSTI]

??The traditional high concentrating photovoltaic systems have proved to be expensive as they use high grade silicon solar cells, highly specular reflecting materials and require… (more)

Hatwaambo, Sylvester

2012-01-01T23:59:59.000Z

19

Long-term measurements of unattached radon progeny concentrations using solid-state nuclear track detectors  

E-Print Network [OSTI]

and the attached mode. As such, we also denote C1 u , C2 u and C3 u as the airborne concentrations of 218 Po, 214

Yu, K.N.

20

A system with a tracking concentrating heliostat for lighting underground spaces with beams of sunlight  

Science Journals Connector (OSTI)

The results of the introduction of a solar-power installation for lighting and creating light effects in an underground room using mirror-concentrating systems are described.

Zh. Z. Akhadov; A. A. Abdurakhmanov; Yu. B. Sobirov; Sh. R. Kholov…

2014-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "tracking concentrator pointed" 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

Cloud Point of Aqueous Solutions of Tetrabutylammonium Dodecyl Sulfate Is a Function of the Concentration of  

E-Print Network [OSTI]

Cloud Point of Aqueous Solutions of Tetrabutylammonium Dodecyl Sulfate Is a Function: December 3, 2003 The cloud point of the surfactant tetrabutylammonium dodecyl sulfate is shown surfactant dissociates 17% of its counterions to aqueous phase. Introduction Clouding is a phenomenon

Bales, Barney

22

An inversion technique for the retrieval of single-point emissions from atmospheric concentration measurements  

Science Journals Connector (OSTI)

...retrieval of single-point emissions from atmospheric...Atmospheric Sciences, Indian Institute of Technology...for the retrieval of point sources of atmospheric...the seven runs of the Indian Institute of Technology...of identification of point sources has raised much...

2009-01-01T23:59:59.000Z

23

Electronic structure and point defect concentrations of \\{C11b\\} MoSi2 by first-principles calculations  

Science Journals Connector (OSTI)

Abstract The electronic structure and point defect concentrations of \\{C11b\\} MoSi2 were studied systematically by the first-principles calculations based on density functional theory. Mo vacancy-induced charge density shows strong directional covalent bonds caused by hybridization of Mo-4d and Si-3p orbitals, which indicates that MoSi2 has low fracture toughness at room temperature. Combining with Wagner–Schottky model, these point defect concentrations of \\{C11b\\} MoSi2 at 2173, 1673, 1223, 773 K as function of composition were also investigated. It is found that the point defect concentrations change drastically for off-stoichiometric compounds. The main structural defects are preferably Mo vacancies or Si anti-structure atoms on the Mo sublattices in Si-rich alloy, and Mo anti-site in Mo-rich alloy, respectively. According to the calculated effective formation enthalpies of point defects, the effective formation enthalpies from big to small in sequence are Mo anti-site, Si anti-site and vacancy (Mo and Si). This result suggests that the vacancy, especially for Si vacancy, is a main type of point defect in \\{C11b\\} MoSi2 system.

X.P. Li; S.P. Sun; H.J. Wang; W.N. Lei; Y. Jiang; D.Q. Yi

2014-01-01T23:59:59.000Z

24

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

SciTech Connect (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

25

Two-axis tracking solar collector mechanism  

DOE Patents [OSTI]

This invention is a novel solar tracking mechanism incorporating a number of practical features that give it superior environmental resilience and exceptional tracking accuracy. The mechanism comprises a lightweight space-frame assembly supporting an array of point-focus Fresnel lenses in a two-axis tracking structure. The system is enclosed under a glass cover which isolates it from environmental exposure and enhances tracking accuracy by eliminating wind loading. Tracking accuracy is also enhanced by the system's broad-based tracking support. The system's primary intended application would be to focus highly concentrated sunlight into optical fibers for transmission to core building illumination zones, and the system may also have potential for photovoltaic or photothermal solar energy conversion.

Johnson, Kenneth C. (201 W. California Ave. #705, Sunnyvale, CA 94086)

1992-01-01T23:59:59.000Z

26

Two-axis tracking solar collector mechanism  

DOE Patents [OSTI]

This invention is a novel solar tracking mechanism incorporating a number of practical features that give it superior environmental resilience and exceptional tracking accuracy. The mechanism comprises a lightweight space-frame assembly supporting an array of point-focus Fresnel lenses in a two-axis tracking structure. The system is enclosed under a glass cover which isolates it from environmental exposure and enhances tracking accuracy by eliminating wind loading. Tracking accuracy is also enhanced by the system's broad-based tracking support. The system's primary intended application would be to focus highly concentrated sunlight into optical fibers for transmission to core building illumination zones, and the system may also have potential for photovoltaic or photothermal solar energy conversion. 16 figs.

Johnson, K.C.

1992-12-08T23:59:59.000Z

27

Two-axis tracking solar collector mechanism  

DOE Patents [OSTI]

This invention is a novel solar tracking mechanism incorporating a number of practical features that give it superior environmental resilience and exceptional tracking accuracy. The mechanism comprises a lightweight space-frame assembly supporting an array of point-focus Fresnel lenses in a two-axis tracking structure. The system is enclosed under a glass cover which isolates it from environmental exposure and enhances tracking accuracy by eliminating wind loading. Tracking accuracy is also enhanced by the system's broad-based tracking support. The system's primary intended application would be to focus highly concentrated sunlight into optical fibers for transmission to core building illumination zones, and the system may also have potential for photovoltaic or photothermal solar energy conversion.

Johnson, Kenneth C. (201 W. California Ave., #401, Sunnyvale, CA 94086)

1990-01-01T23:59:59.000Z

28

Novel fuzzy logic based sensorless maximum power point tracking strategy for wind turbine systems driven DFIG (doubly-fed induction generator)  

Science Journals Connector (OSTI)

Abstract This paper presents a novel FLC MPPT (fuzzy logic sensorless maximum power point tracking) method for WECS (wind energy conversion systems). The proposed method greatly reduces the speed variation range of the wind generator which leads to the downsizing the PWM (pulse width modulation) back-to-back converters by approximately 40% in comparison with conventional techniques. The method also increases the system's reliability by reducing the converter losses. Firstly, a MRAS (model reference adaptive system) based on fuzzy logic technique is used to estimate the DFIG (doubly-fed induction generator) rotor's speed. Then, a FLC MPPT (Fuzzy Logic Maximum Power Point Tracking) method is applied to provide the reference electromagnetic torque. Subsequently, in order to achieve the overall sensorless MPPT technique, the wind power is approximated from estimated generator speed and the reference of electromagnetic torque. Finally, the wind speed is estimated from the mechanical power using a fuzzy logic technique. The proposed control method has been applied to a WTG (wind turbine generator) driving a 3.7 kW DFIG in variable speed mode. In order to validate the simulation results, experimental tests have been performed on a 3.7 kW test bench, consisting of a DFIG and DC motor drive.

K. Belmokhtar; M.L. Doumbia; K. Agbossou

2014-01-01T23:59:59.000Z

29

Thermodynamic and optical analysis for a CPV/T hybrid system with beam splitter and fully tracked linear Fresnel reflector concentrator utilizing sloped panels  

Science Journals Connector (OSTI)

Abstract Spectral splitting technology that separates solar spectrum into several parts and enables different energy conversions such as photovoltaic (PV) conversion and photo-thermal conversion aims to utilize the full spectrum solar energy efficiently. A novel concentrating PV/Thermal (CPV/T) hybrid system with beam splitter and fully tracked linear Fresnel reflector concentrator utilizing sloped panels was proposed in this study. The relations between the structural parameters and the optical performances of the system were investigated. The concentrated radiation distribution on the PV device surface was simulated by taking into account the main optical errors and shows a good uniformity. Based on the experimental data of the components, thermodynamic analysis on the CPV/T hybrid system was carried out and the results reveal that the overall energy conversion efficiencies of the proposed CPV/T hybrid system is higher than that of the CPV system under the same conditions.

Yang Liu; Peng Hu; Qian Zhang; Zeshao Chen

2014-01-01T23:59:59.000Z

30

Characterization of a Test Site for the Measuring of the Focal Point of Reflective Optical Elements for Concentrator Photovoltaic  

E-Print Network [OSTI]

In order to achieve a large deployment of renewable energies, the electricity production costs have to be as low as possible. Many different technologies have been proposed to achieve the best efficiency to cost ratio. One of those is concentrating photovoltaics (CPV) which takes advantage of the high efficiency of multi-junction cells while limiting the costs by reducing the size of the cell and concentrating the direct irradiance with a cheaper optical element. Next to the widely used Fresnel lenses concave mirrors could be of interest as concentrator optic. As for the whole module those optics have to minimize losses and production costs at once. Measuring scattering and slope errors of the mirrors is of great importance to achieve an optimal design and production process. Therefore an optical test site doing so by observing the 2D irradiance distribution in the focal point has been built at the Fraunhofer ISE. The aim of this thesis is to characterize this test site. Therefore the behavior of the differen...

Frick, Manuel

2014-01-01T23:59:59.000Z

31

The influence of the nonverticality of the azimuthal rotation axis of the concentrator (heliostat) on program tracking accuracy  

Science Journals Connector (OSTI)

It is shown that the nonverticality of the azimuthal axis has a significant influence on the accuracy of the program control of the concentrator (heliostat). To eliminate this error, it is...

A. A. Abdurakhmanov; S. A. Orlov; A. S. Saribaev; Kh. K. Fazilov

2010-12-01T23:59:59.000Z

32

An Innovative Approach for the Calculation of Exposure Point Concentrations for Large Areas of Surface Radionuclide Contamination  

SciTech Connect (OSTI)

The Department of Energy Rocky Flats site was designated as a wildlife refuge by the Rocky Flats National Wildlife Refuge Act of 2001. Rocky Flats was considered to be one of the most highly contaminated radiological sites in the country. Some portions of the site have low-level radionuclide contamination in surface soils. A site-wide risk and dose assessment to evaluate threats to human health and the environment were performed, so that the site could be released for this land use. The aggressive accelerated action program combined with defensible and innovative risk assessment methods resulted in there being no radionuclides of concern in the final comprehensive risk assessment (DOE 2006). An innovative approach for delineating functional exposure areas and area-weighted exposure point concentration-activities (EPCs) was negotiated with the regulatory agencies in Colorado. This procedure leads to realistic estimates of risk and dose to workers and visitors. This innovative approach to the calculation of EPCs was negotiated with both State and Federal regulators. The value of developing and maintaining good working relationships with regulators responsible for a site can not be overestimated. The building of trust and confidence among responsible parties and regulators is essential for the development and implementation of innovative methods and technologies.

Winchester Chromec, F.; Myers, Jeffrey C. [7800 E. Union Avenue, Denver, Colorado, 801237 (United States)

2008-01-15T23:59:59.000Z

33

Decreasing aqueous mercury concentrations to achieve safe levels in fish: examining the water-fish relationship in two point-source contaminated streams  

SciTech Connect (OSTI)

East Fork Poplar Creek (EFPC) and White Oak Creek (WOC) are two mercury-contaminated streams located on the Department of Energy s Oak Ridge Reservation in east Tennessee. East Fork Poplar Creek is the larger and more contaminated of the two, with average aqueous mercury (Hg) concentrations exceeding those in reference streams by several hundred-fold. Remedial actions over the past 20 years have decreased aqueous Hg concentrations in EFPC by 85 %. Fish fillet concentrations, however, have not responded to this decrease in aqueous Hg and remain above the U.S. Environmental Protection Agency s ambient water quality criterion (AWQC) of 0.3 mg/kg. The lack of correlation between aqueous and fish tissue Hg concentrations in this creek has led to questions regarding the usefulness of target aqueous Hg concentrations and strategies for future remediation efforts. White Oak Creek has a similar contamination history but aqueous Hg concentrations in WOC are an order of magnitude lower than in EFPC. Despite the lower aqueous Hg concentrations, fish fillet concentrations in WOC have also been above the AWQC, making the most recent aqueous Hg target of 200 ng/L in EFPC seem unlikely to result in an effective decrease in fillet Hg concentrations. Recent monitoring efforts in WOC, however, suggest an aqueous total Hg threshold above which Hg bioaccumulation in fish may not respond. This new information could be useful in guiding remedial actions in EFPC and in other point-source contaminated streams.

Mathews, Teresa J [ORNL; Southworth, George R [ORNL; Peterson, Mark J [ORNL; Roy, W Kelly [ORNL; Ketelle, Richard H [ORNL; Valentine, Charles S [ORNL; Gregory, Scott M [ORNL

2013-01-01T23:59:59.000Z

34

TOWER-TRACKING HELIOSTAT ARRAY.  

E-Print Network [OSTI]

?? This thesis presents a method of tracking and correcting for the swaying of a central receiver tower in concentrated solar production plants.  The method… (more)

Masters, Joel T

2011-01-01T23:59:59.000Z

35

Photovoltaic solar concentrator  

DOE Patents [OSTI]

A photovoltaic solar concentrator is disclosed with one or more transverse-junction solar cells (also termed point contact solar cells) and a lens located above each solar cell to concentrate sunlight onto the solar cell to generate electricity. Piezoelectric actuators tilt or translate each lens to track the sun using a feedback-control circuit which senses the electricity generated by one or more of the solar cells. The piezoelectric actuators can be coupled through a displacement-multiplier linkage to provide an increased range of movement of each lens. Each lens in the solar concentrator can be supported on a frame (also termed a tilt plate) having three legs, with the movement of the legs being controlled by the piezoelectric actuators.

Nielson, Gregory N.; Okandan, Murat; Resnick, Paul J.; Cruz-Campa, Jose Luis

2012-12-11T23:59:59.000Z

36

Sliding mode observer design for a PWR to estimate the xenon concentration & delayed neutrons precursor density based on the two point nuclear reactor model  

Science Journals Connector (OSTI)

Abstract One of the important operations in nuclear power plants is load-following in which imbalance of axial power distribution induces xenon oscillations. These oscillations must be maintained within acceptable limits otherwise the nuclear power plant could become unstable. Therefore, bounded xenon oscillation considered to be a constraint for the load-following operation. In other hands, precursors produce delayed neutrons which are most important in control of nuclear reactor, but xenon concentration & precursor density cannot be measured directly. In this paper, non-linear sliding mode observer which has the robust characteristics facing the parameters uncertainties and disturbances is proposed based on the two point nuclear reactor model to estimate the xenon concentration & delayed neutron precursor density of the Pressurized-Water Nuclear Reactor (PWR) using reactor power measurement. The stability analysis is given by means Lyapunov approach, thus the system is guaranteed to be stable within a large range. The employed method is easy to implement in practical applications. This estimation is done taking into account the effects of reactivity feedback due to temperature and xenon concentration. Simulation results clearly show that the sliding mode observer follows the actual system variables accurately and is satisfactory in the presence of the parameters uncertainties & disturbances.

G.R. Ansarifar; M.H. Esteki; M. Arghand

2015-01-01T23:59:59.000Z

37

TRACKING SITE  

Energy Science and Technology Software Center (OSTI)

003235MLTPL00 AASG Geothermal Data submissions tracking application and site.  https://github.com/usgin/aasgtrack 

38

A Path to High-Concentration Luminescent Solar Concentrators  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

and Impact LSCs enable non-tracking concentration of both direct sunlight and diffuse light onto high- efficiency solar cells, and our work predicts unprecendented levels of...

39

Arontis Solar Concentrator AB | Open Energy Information  

Open Energy Info (EERE)

Harnosand, Sweden Zip: SE-871 31 Product: Developer of a medium-concentrating, one axis sun tracking PV system that also produces hot water. References: Arontis Solar Concentrator...

40

Concentration in Green Design  

E-Print Network [OSTI]

, energy, infrastructure or transport. Participants in this specialization area work closely with the GreenConcentration in Green Design Research and Education Opportunities Carnegie Mellon University Civil and Environmental Engineering www.ce.cmu.edu M.S. Concentration Green Design - Course Only Track As an extension

Shewchuk, Jonathan

Note: This page contains sample records for the topic "tracking concentrator pointed" 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

Tracks in the Snow  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Tracks in the Snow Tracks in the Snow Nature Bulletin No. 98 January 11, 1947 Forest Preserve District of Cook County William N. Erickson, President Roberts Mann, Superintendent of Conservation TRACKS IN THE SNOW Tracks in the snow tell fascinating stories of the secret lives of the wild animals that are abroad in wintertime -- stories of their search for food and the never-ending warfare between the hunter and the hunted. Walking through the woods, we came upon the trail of a red fox. The footprints of a fox are more pointed than those of a dog, more nearly in a straight line, and the hind foot is placed exactly on the print of the corresponding front foot. More-over, this fox had walked out across a meadow to a big ant hill on top of which he sat to listen and test the wind for scent. A dog will not do that. Later, back in the woods, he had jumped on a fallen tree and trotted along its length. A dog will not do that, either. The fox was traveling leisurely, pausing here and there to sniff at tufts of grass and other possible hiding places for mice.

42

Chemical Concentrations in Field Mice from Open-Detonation Firing Sites TA-36 Minie and TA-39 Point 6 at Los Alamos National Laboratory  

SciTech Connect (OSTI)

Field mice (mostly Peromyscus spp.) were collected at two open-detonation (high explosive) firing sites - Minie at Technical Area (TA) 36 and Point 6 at TA-39 - at Los Alamos National Laboratory in August of 2010 and in February of 2011 for chemical analysis. Samples of whole body field mice from both sites were analyzed for target analyte list elements (mostly metals), dioxin/furans, polychlorinated biphenyl congeners, high explosives, and perchlorate. In addition, uranium isotopes were analyzed in a composite sample collected from TA-36 Minie. In general, all constituents, with the exception of lead at TA-39 Point 6, in whole body field mice samples collected from these two open-detonation firing sites were either not detected or they were detected below regional statistical reference levels (99% confidence level), biota dose screening levels, and/or soil ecological chemical screening levels. The amount of lead in field mice tissue collected from TA-39 Point 6 was higher than regional background, and some lead levels in the soil were higher than the ecological screening level for the field mouse; however, these levels are not expected to affect the viability of the populations over the site as a whole.

Fresquez, Philip R. [Los Alamos National Laboratory

2011-01-01T23:59:59.000Z

43

Circle Track Magazine Project GREEN: New Smyrna Track Testing...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Circle Track Magazine Project GREEN: New Smyrna Track Testing Results Circle Track Magazine Project GREEN: New Smyrna Track Testing Results Forrest Jehlik's presentation on GREEN...

44

Alpha track density using a semiconductor detector  

E-Print Network [OSTI]

of factors including variation in the initial dielectric thickness, and other undefined parameters. In addition, the resultant radon concentration reading is dependent upon the calibration factor used to interpret the track density reading. Obtaining...

Hamilton, Ian Scott

2012-06-07T23:59:59.000Z

45

Track 3: Exposure Hazards  

Broader source: Energy.gov [DOE]

ISM Workshop Presentations Knoxville Convention Center, Knoxville, TN August 2009 Track 3: Exposure Hazards

46

Cycle Track Lessons Learned  

E-Print Network [OSTI]

Cycle Track Lessons Learned #12;Presentation Overview · Bicycling trends · Cycle track lessons learned · What is a "Cycle track"? · Essential design elements of cycle tracks Separation Width Crossing driveways & low-volume streets Signalized intersections #12;Trend in kilometers cycled per year

Bertini, Robert L.

47

Track 9: Quality Assurance  

Broader source: Energy.gov [DOE]

ISM Workshop Presentations Knoxville Convention Center, Knoxville, TN August 2009 Track 9: Quality Assurance

48

Scattering Solar Thermal Concentrators  

Broader source: Energy.gov [DOE]

"This fact sheet describes a scattering solar thermal concentrators project awarded under the DOE's 2012 SunShot Concentrating Solar Power R&D award program. The team, led by the Pennsylvania State University, is working to demonstrate a new, scattering-based approach to concentrating sunlight that aims to improve the overall performance and reliability of the collector field. The research team aims to show that scattering solar thermal collectors are capable of achieving optical performance equal to state-of-the-art parabolic trough systems, but with the added benefits of immunity to wind-load tracking error, more efficient land use, and utilization of stationary receivers."

49

Linear Concentrator System Basics for Concentrating Solar Power |  

Broader source: Energy.gov (indexed) [DOE]

Linear Concentrator System Basics for Concentrating Solar Power Linear Concentrator System Basics for Concentrating Solar Power Linear Concentrator System Basics for Concentrating Solar Power August 20, 2013 - 4:45pm Addthis Photo of numerous parallel rows of parabolic trough collectors tracking the sun. Cooling towers and other generator equipment are in the midst of the troughs, and two water tanks are in the background. The Solar Electric Generating Station IV power plant in California consists of many parallel rows of parabolic trough collectors that track the sun. The cooling towers can be seen with the water plume rising into the air, and white water tanks are in the background. Credit: Sandia National Laboratory / PIX 14955 Linear concentrating solar power (CSP) collectors capture the sun's energy with large mirrors that reflect and focus the sunlight onto a linear

50

Solar Tracing Sensors for Maximum Solar Concentrator Efficiency  

Energy Innovation Portal (Marketing Summaries) [EERE]

Concentrating Solar Power (CSP) relies on thermodynamic processes to convert concentrated light into useful forms of energy. Accurate sun tracking enables higher concentration ratios and improved efficiency through higher temperature processes and lower losses...

2013-03-12T23:59:59.000Z

51

Solar tracking apparatus  

DOE Patents [OSTI]

The invention relates to a solar tracking device which tracks the position of the sun using paired, partially-shaded photocells. Auxiliary photocells are used for initial acquisition of the sun and for the suppression of false tracking when the sun is obscured by clouds.

Hammons, Burrell E. (Albuquerque, NM)

1980-01-01T23:59:59.000Z

52

Sherlock Holmes and the Bicycle Tracks Edward A. Bender  

E-Print Network [OSTI]

Sherlock Holmes and the Bicycle Tracks by Edward A. Bender "This track, as you perceive, was made wheel cannot turn. Therefore it moves in the same direction as the bicycle frame is pointed, which the wheels on the bicycle. If we draw the tangent line to the wrong curve or go in the wrong direction

Bor, Gil

53

Talking Points  

U.S. Energy Information Administration (EIA) Indexed Site

Talking Points Talking Points NATURAL GAS MARKET INTEGRITY: How EIA Helps Presentation by William F. Hederman Congressional Research Service at EIA 30 th Anniversary Conference April 8, 2008 Washington, DC INTRODUCTION 1. Price levels and volatility cause suspicions. 2. Actual integrity and perceived integrity are both important for markets. 3. EIA was created in response to a crisis of confidence in energy market information. CANDIDATE INTEGRITY CRITERIA 1. Transparency 2. Efficiency (gathering, reporting, monitoring data) v. equity 3. Stability/predictability v. dynamism/volatility 4. Clarity (understanding) "DRAFT" TEN COMMANDMENTS/SUGGESTIONS 1. First presented at World Energy Congress, Rome, Nov. 2007 panel on Energy Market Integrity.

54

Concentrating photovoltaic solar panel  

DOE Patents [OSTI]

The present invention relates to photovoltaic power systems, photovoltaic concentrator modules, and related methods. In particular, the present invention features concentrator modules having interior points of attachment for an articulating mechanism and/or an articulating mechanism that has a unique arrangement of chassis members so as to isolate bending, etc. from being transferred among the chassis members. The present invention also features adjustable solar panel mounting features and/or mounting features with two or more degrees of freedom. The present invention also features a mechanical fastener for secondary optics in a concentrator module.

Cashion, Steven A; Bowser, Michael R; Farrelly, Mark B; Hines, Braden E; Holmes, Howard C; Johnson, Jr., Richard L; Russell, Richard J; Turk, Michael F

2014-04-15T23:59:59.000Z

55

Concentrating Information  

E-Print Network [OSTI]

We introduce the concentrated information of tripartite quantum states. For three parties Alice, Bob and Charlie, it is defined as the maximal mutual information achievable between Alice and Charlie via local operations and classical communication performed by Charlie and Bob. The gap between classical and quantum concentrated information is shown to be an operational figure of merit for a state merging protocol involving shared mixed states and no distributed entanglement. We derive upper and lower bounds on the concentrated information, and obtain a closed expression for arbitrary pure tripartite states in the asymptotic setting. In this situation, one-way classical communication is shown to be sufficient for optimal information concentration.

Alexander Streltsov; Soojoon Lee; Gerardo Adesso

2014-10-23T23:59:59.000Z

56

Cross-device gaze-supported point-to-point content transfer  

Science Journals Connector (OSTI)

Within a pervasive computing environment, we see content on shared displays that we wish to acquire and use in a specific way i.e., with an application on a personal device, transferring from point-to-point. The eyes as input can indicate intention to ... Keywords: content transfer, cross-device, eye-based interaction, gaze positioning, multimodal eye-tracking

Jayson Turner; Andreas Bulling; Jason Alexander; Hans Gellersen

2014-03-01T23:59:59.000Z

57

MATERIAL TRACKING USING LANMAS  

SciTech Connect (OSTI)

LANMAS is a transaction-based nuclear material accountability software product developed to replace outdated and legacy accountability systems throughout the DOE. The core underlying purpose of LANMAS is to track nuclear materials inventory and report transactions (movement, mixing, splitting, decay, etc.) to the Nuclear Materials Management and Safeguards System (NMMSS). While LANMAS performs those functions well, there are many additional functions provided by the software product. As a material is received onto a site or created at a site, its entire lifecycle can be tracked in LANMAS complete to its termination of safeguards. There are separate functions to track material movements between and within material balance areas (MBAs). The level of detail for movements within a MBA is configurable by each site and can be as high as a site designation or as detailed as building/room/rack/row/position. Functionality exists to track the processing of materials, either as individual items or by modeling a bulk process as an individual item to track inputs and outputs from the process. In cases where sites have specialized needs, the system is designed to be flexible so that site specific functionality can be integrated into the product. This paper will demonstrate how the software can be used to input material into an account and track it to its termination of safeguards.

Armstrong, F.

2010-06-07T23:59:59.000Z

58

Concentration oscillations and efficiency: glycolysis  

Science Journals Connector (OSTI)

...partitioning of the total free energy decrease, we postulate...Concentration Oscillations and Efficiency: Glycolysis Abstract...the point of view of efficiency offree energy conversion. It is suggested...the adenosine phosphate pool: the PFK reaction at...

PH Richter; J Ross

1981-02-13T23:59:59.000Z

59

A maximum power tracking algorithm based on photovoltaic current control for matching loads to a photovoltaic generator  

Science Journals Connector (OSTI)

In this paper, a novel maximum power point tracking (MPPT) approach is studied. It is based on the photovoltaic (PV) current control. The last one...

Ben Hamed Mouna; Sbita Lassaâd

2012-10-01T23:59:59.000Z

60

Status Report on REC Verification, Tracking and Associated Issues  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

REC REC Verification, Tracking Systems and Associated Issues DOE Workshop on REC Markets and Challenges September 11, 2007 Meredith Wingate Director of Clean Energy Policy Design and Implementation Center for Resource Solutions Main Points * Think National - Verification issues are getting more complicated with the intersection of RECs and emissions markets - Market needs more rigorous verification * More coordination is needed Role of Tracking Systems * Primary tool for implementing state RPS programs * Produce data for environmental disclosure programs * Facilitate REC transactions Certificate-based Tracking Programs * ERCOT RECs Program (2001) * NEPOOL GIS (2002) * WI RRC Program (2003-2007) * PJM GATS (2005) * NJ SRECS (2005) * WREGIS (2007) * M-RETS (2007) * New York State (2008?)

Note: This page contains sample records for the topic "tracking concentrator pointed" 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

Tracking Provenance in ORNL's Flexible Research Platforms  

SciTech Connect (OSTI)

Provenance is dened as information about the origin of objects, a concept that applies to both physical and digital objects and often overlaps both. The use of provenance in systems designed for research is an important but forgotten feature. Provenance allows for proper and exact tracking of information, its use, its lineage, its derivations and other metadata that are important for correctly adhering to the scien- tic method. In our project's prescribed use of provenance, researchers can determine detailed information about the use of sensor data in their experiments on ORNL's Flexible Research Platforms (FRPs). Our project's provenance system, Provenance Data Management System (ProvDMS), tracks information starting with the creation of information by an FRP sensor. The system determines station information, sensor information, and sensor channel information. The system allows researchers to derive generations of experiments from the sensor data and tracks their hierarchical flow. Key points can be seen in the history of the information as part of the information's workflow. The concept of provenance and its usage in science is relatively new and while used in other cases around the world, our project's provenance diers in a key area. To keep track of provenance, most systems must be designed or redesigned around the new provenance system. Our system is designed as a cohesive but sepa- rate entity and allows for researchers to continue using their own methods of analysis without being constrained in their ways in order to track the provenance. We have designed ProvDMS using a lightweight provenance library, Core Provenance Library (CPL) v.6 In addition to keeping track of sensor data experiments and its provenance, ProvDMS also provides a web-enabled visualization of the inheritance.

Hensley, Zachary P [ORNL; Sanyal, Jibonananda [ORNL; New, Joshua Ryan [ORNL

2013-08-01T23:59:59.000Z

62

Solar Tracking by Plants  

Science Journals Connector (OSTI)

...University of Utah, Salt Lake City 84112...Solar Tracking in Desert Plants In the arid...were coastal sage scrub, which grows during...Mohave and Colorado desert scrub, which grow in...Mohave and Colorado desert scrub communities at sites...

James Ehleringer; Irwin Forseth

1980-12-05T23:59:59.000Z

63

Magnetic Low-Friction Track  

Science Journals Connector (OSTI)

The standard low-friction tracks used to test Newton's laws are the air track and the low-friction cart track. Both are commercially available and provide low-friction environments to test various physics concepts. At a recent science fair one of the authors (JG) presented a magnetically levitated cart and track. A literature search found no previous testing of magnetically levitated carts.1 This paper compares a magnetically levitated cart against the two standard low-friction tracks.

Mark Paetkau; Manpreet Bahniwal; James Gamblen

2008-01-01T23:59:59.000Z

64

Microsoft Word - Tracking Call _2_.doc  

Broader source: Energy.gov (indexed) [DOE]

Tracking Sub-Group Call, Monday December 12, 2005, 11 a.m. eastern Tracking Sub-Group Call, Monday December 12, 2005, 11 a.m. eastern Participants: Bill Mackie (WGA), Sarah Wochos (CSG-MW), Michele Sampson (FRA) Participants discussed information to add to the group's working document and next steps for the discussion. It was mentioned that RW recently announced that the rail spur in Nevada would cost much more than originally planned, so the possibility of heavy-hauling is likely, at least initially until the spur is completed. In light of that, we need to consider technologies and policies for both truck and rail and for inter-modal transfers. People/sources to contact for lessons-learned and/or available technologies Bob Fronczak at AAR - as a starting point to involving the railroads. AAR likely has access to

65

LED Price Tracking Form  

Broader source: Energy.gov [DOE]

DOE intends to update the SSL Pricing and Efficacy Trend Analysis for Utility Program Planning report on an annual basis, but doing so requires that we have sufficient product and purchase data including acquisition date, purchase price, product category, and rated initial lumens. Those interested in helping collect this data are asked to use the LED Price Tracking FormMicrosoft Excel and follow the instructions for submitting data.

66

PowerPoint Presentation  

Broader source: Energy.gov (indexed) [DOE]

Review of Task Plan and Topic Group responsibilities * Discussion of potential topics for future Topic Group tasks - Inspections - FRA SCOP - Escorts - Tracking - Dedicated trains...

67

Irregular tooth spacing reduces roller cone bit tracking problems  

SciTech Connect (OSTI)

On tungsten carbide insert bits, irregularly spaced teeth can help stop tracking problems, leading to increased penetration rates and longer bit runs. Tracking, which occurs when teeth fall into the craters formed during previous bit rotations, severely affects the performance of roller cone rock bits. The tracking tendencies of tungsten carbide insert (TCI) bits are generally considered once the bit is built and tested, rather than during the design process. Once tracking is initiated, crater depth quickly reaches the full projection of the teeth, bringing the cone steel in contact with the rock. This tracking increases the contact area while reducing contact stresses beneath the inserts. Tracking increases the likelihood that neighboring rows of cutters will line up on the hole bottom, forcing the bit to rotate about a point other than its geometric center. This phenomenon is termed off-center rotation or forward whirl. Off-center rotation produces rings of uncut bottom and a further reduction in contact stresses. This article covers laboratory and field data used in the development and validation of a proprietary algorithm that determines the optimal tooth spacing to eliminate tracking. This study confirms that an algorithm can be applied effectively in the roller cone bit design process to improve coverage of the rock surface during drilling. In addition, these laboratory tests improve the understanding of a single gear-like wheel, a key to understanding total bit behavior.

Kenner, J.V. [Hughes Christensen Co., Houston, TX (United States); Boylan, T.P. [Transatlantic Technical Services, Houston, TX (United States)

1996-05-13T23:59:59.000Z

68

Linear Concentrator Systems | Open Energy Information  

Open Energy Info (EERE)

Linear Concentrator Systems Linear Concentrator Systems Jump to: navigation, search Introduction Linear concentrating collector fields consist of a large number of collectors in parallel rows that are typically aligned in a north-south orientation to maximize both annual and summertime energy collection. With a single-axis sun-tracking system, this configuration enables the mirrors to track the sun from east to west during the day, ensuring that the sun reflects continuously onto the receiver tubes. Parabolic Trough Systems The predominant CSP systems currently in operation in the United States are linear concentrators using parabolic trough collectors. In such a system, the receiver tube is positioned along the focal line of each parabola-shaped reflector. The tube is fixed to the mirror structure and

69

Circle Track Magazine Project GREEN: New Smyrna Track Testing...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

catalytic convertors (100 CPI) Data was analyzed and the petroleum displacementGHG reduction determined Race demonstration 13 La Crosse Speedway - mile asphalt track...

70

REC Tracking Systems Design Guide  

SciTech Connect (OSTI)

OAK-B135 The Design Guide is presented in three parts. Section II describes the need for REC tracking, the two principal tracking methods available, and, in simple terms, the operation of certificate-based systems. Section III presents the major issues in the design of certificate-based tracking systems and discusses the advantages and disadvantages of alternative solutions. Finally, Section IV offers design principles or recommendations for most of these issues.

Meredith Wingate

2004-02-03T23:59:59.000Z

71

SETTLEMENT POINTS (Congo, Democra  

E-Print Network [OSTI]

SETTLEMENT POINTS ! ! ! ! ! ! ! ! ! ! ! ! ! ( ( ( ( ( ( ( ( ( ( ( ( ( ! ! ( (Congo, Democra Rwanda Republic of Tanzania Democratic Republic of Congo Settlement Points Administrative Units National

Columbia University

72

Legal Management Tracking System Page  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Legal Management Tracking System Page 1 of 1 Back to Case Costs Contractor Litigation - Law Firm Invoices Office: Richland Operations Office Parties: DWAYNE HALL v. FLUOR HANFORD,...

73

Engineering Sciences AB ESE Track Rev. October 2013 1/4  

E-Print Network [OSTI]

Engineering Sciences AB ­ ESE Track Rev. October 2013 1/4 Plan of Study for the Engineering Sciences AB Concentration Environmental Science & Engineering Track Effective for Students Declaring ­ Mathematical Methods in the Sciences I (or Mathematics 21a or 23a) Applied Mathematics 21b ­ Mathematical

74

Engineering Sciences AB ESE Track Rev. July 2014 1/4  

E-Print Network [OSTI]

Ecosystems ES 164 ­ Environmental Chemistry ES 165 ­ Water Engineering _______ _______ _______ _______ #12Engineering Sciences AB ­ ESE Track Rev. July 2014 1/4 Plan of Study for the Environmental Science & Engineering Track of the Engineering Sciences AB Concentration Effective for Students Declaring

75

Calibration factor of track etch detectors at different temperatures of water  

E-Print Network [OSTI]

Research was performed to determine track density as a function of radon exposure in water and exposure temperature for the track etch detectors Kodak LR II 5 Type 2 and CR-39. Films were submerged in water containing a known concentration...

Yasmeen, Nuzhat

2012-06-07T23:59:59.000Z

76

Experimental Target Injection and Tracking System  

SciTech Connect (OSTI)

Targets must be injected into an IFE power plant with an accuracy of and plusmn; 5 mm at a rate of approximately 5 to 10 each second. Targets must be tracked very accurately to allow driver beams to be aligned with defined points on the targets with accuracy {+-}200{mu}m for indirect drive and {+-}20{mu}m for direct drive. An experimental target injection and tracking system has been designed and is being constructed at General Atomics to investigate injection and tracking of both direct drive and indirect drive targets. The design is modular to allow testing of alternate target acceleration and tracking methods. The injector system will be used as a tool for testing the survivability of various target designs and provide feed back to the target designers. This 30 m long system will be the centerpiece of a Facility for developing IFE target fabrication and injection technologies. A high-speed high-flow gas valve (designed and built by Oak Ridge National Laboratory) will provide helium propellant gas to the targets. To avoid target damage from excessive acceleration, an 8 m gun barrel is being built to achieve 400 m/s target speed while not exceeding 10,000 m/s{sup 2} acceleration. Direct-drive targets are protected in the barrel by sabots that are spring loaded to separate into two halves after acceleration. A sabot deflector directs the sabot halves away from the target injection path. Gas expansion chambers and orifices, keep propellant gas out of the target-tracking region. Targets will be optically tracked with laser beams and line scan cameras. High-speed computations will calculate target position in less than 2 ms based on the output from the line-scan cameras. Target position and arrival time to a plane in the reaction chamber center will be predicted in real-time based on early target position measurements. The system design, construction progress, and early testing results will be presented.

Petzoldt, R.W. [General Atomics (United States); Alexander, N.B. [General Atomics (United States); Drake, T.J. [General Atomics (United States); Goodin, D.T. [General Atomics (United States); Stemke, R.W. [General Atomics (United States); Jonestrask, K

2003-07-15T23:59:59.000Z

77

Technical and economical system comparison of photovoltaic and concentrating solar thermal power systems depending on annual global irradiation  

Science Journals Connector (OSTI)

Concentrating solar thermal power and photovoltaics are two major technologies for converting sunlight to electricity. Variations of the annual solar irradiation depending on the site influence their annual efficiency, specific output and electricity generation cost. Detailed technical and economical analyses performed with computer simulations point out differences of solar thermal parabolic trough power plants, non-tracked and two-axis-tracked PV systems. Therefore, 61 sites in Europe and North Africa covering a global annual irradiation range from 923 to 2438 kW h/m2 a have been examined. Simulation results are usable irradiation by the systems, specific annual system output and levelled electricity cost. Cost assumptions are made for today's cost and expected cost in 10 years considering different progress ratios. This will lead to a cost reduction by 50% for PV systems and by 40% for solar thermal power plants. The simulation results show where are optimal regions for installing solar thermal trough and tracked PV systems in comparison to non-tracked PV. For low irradiation values the annual output of solar thermal systems is much lower than of PV systems. On the other hand, for high irradiations solar thermal systems provide the best-cost solution even when considering higher cost reduction factors for PV in the next decade. Electricity generation cost much below 10 Eurocents per kW h for solar thermal systems and about 12 Eurocents/kW h for PV can be expected in 10 years in North Africa.

Volker Quaschning

2004-01-01T23:59:59.000Z

78

Microsoft PowerPoint - Aluminum Concentrations in Storm Water...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

publication or guarantee its technical correctness. Title: Solid and Dissolved Phase Aluminum in Storm Water Runoff on the Pajarito Plateau, Poster, Individual Permit for Storm...

79

Production of fullerenes using concentrated solar flux  

DOE Patents [OSTI]

A method of producing soot containing high amounts of fullerenes comprising: providing a primary concentrator capable of impingement of a concentrated beam of sunlight onto a carbon source to cause vaporization of carbon and subsequent formation of fullerenes, or providing a solar furnace having a primary concentrator with a focal point that concentrates a solar beam of sunlight; providing a reflective secondary concentrator having an entrance aperture and an exit aperture at the focal point of the solar furnace; providing a carbon source at the exit aperture of the secondary concentrator; supplying an inert gas over the carbon source to keep the secondary concentrator free from vaporized carbon; and impinging a concentrated beam of sunlight from the secondary concentrator on the carbon source to vaporize the carbon source into a soot containing high amounts of fullerenes.

Fields, Clark L. (Greeley, CO); Pitts, John Roland (Lakewood, CO); King, David E. (Lakewood, CO); Hale, Mary Jane (Golden, CO); Bingham, Carl E. (Denver, CO); Lewandowski, Allan A. (Evergreen, CO)

2000-01-01T23:59:59.000Z

80

Automatic alpha-track counting with image analysis systems  

E-Print Network [OSTI]

of Advisory Committee: Dr. Milton E. McLain Integrated measurements of radon gas concentrations in the air environment have been performed in recent years due to dosimetric concerns of the radioactive substance. Proper evaluation of the dose received from... radon, primarily to the lung of the exposed individual, requires accurate measurement of concentrations present in the atmosphere. In response, this project was undertaken to further improve alpha track measurement techniques currently in place...

Shymanski, Michael Joseph

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "tracking concentrator pointed" 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

BSTBacterial Source Tracking Conference Proceedings  

E-Print Network [OSTI]

BSTBacterial Source Tracking Conference Proceedings 2012 Bacterial Source Tracking State Conference Conference Proceedings Prepared by: Lucas Gregory, Texas Water Resources Institute Courtney Smith of the Science Conference Texas Water Resources Institute TR-427 June 2012 #12;#12;Texas Water Resources

82

Large Scale Tracked Vehicle Concurrent Engineering Environment  

Science Journals Connector (OSTI)

In this paper, a fully integrated Tracked Vehicle Concurrent Engineering environment that exploits CAD and CAE technologies in ... vehicles is presented. The Tracked Vehicle Concurrent Engineering environment com...

Kyung K. Choi; J. Kirk Wu; Kuang-Hua Chang; Jun Tang…

1995-01-01T23:59:59.000Z

83

Material Point Methods  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Material Point Methods and Multiphysics for Fracture and Multiphase Problems Joseph Teran, UCLA and Alice Koniges, LBL Contact: jteran@math.ucla.edu Material point methods (MPM)...

84

Cooperative Modeling and Design History Tracking Using Design Tracking Matrix  

E-Print Network [OSTI]

This thesis suggests a new framework for cooperative modeling which supports concurrency design protocol with a design history tracking function. The proposed framework allows designers to work together while eliminating design conflicts...

Kim, Jonghyun

2010-10-12T23:59:59.000Z

85

Fine tracking system for balloon-borne telescopes  

E-Print Network [OSTI]

We present the results of a study along with a first prototype of a high precision system (? 1 arcsec) for pointing and tracking light (near-infrared) telescopes on board stratospheric balloons. Such a system is essentially composed by a star sensor and by a star tracker, able to recognize the field and to adequately track the telescope, respectively. We present the software aimed at processing the star sensor image and the predictive algorithm that allows the fine tracking of the source at a sub-pixel level. The laboratory tests of the system are described and its performance is analyzed. We demonstrate how such a device, when used at the focal plane of enough large telescopes (2-4m, F/10), is capable to provide (sub-)arcsec diffraction limited images in the near infrared bands.

Ricci, M; Lorenzetti, D

2011-01-01T23:59:59.000Z

86

Automatic Library Tracking Database Infrastructure  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Libraries » ALTD Libraries » ALTD ALTD Automatic Library Tracking Database Infrastructure To track and monitor library usage and better serve your software needs, we have enabled the Automatic Library Tracking Database (ALTD) on our prodcution systems, Hopper and Edison. ALTD is also availailable on Carver, but has not enabled for all users by default yet. ALTD, developed by National Institute for Computational Sciences, automatically and transparently tracks all libraries linked into an application at compile time, as well as the libraries used at run time, by intercepting the linker (ld) and the job launcher (aprun, or mpirun). It is a light-weight tool, and should not change your experience with compilation and execution of codes on the machine. However, if you encounter any problems due to ALTD,

87

Radiological Source Registry and Tracking  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Radiological Source Registry and Tracking (RSRT) Radiological Source Registry and Tracking (RSRT) Home HSS Logo Radiological Source Registry and Tracking (RSRT) Department of Energy (DOE) Notice N 234.1 Reporting of Radioactive Sealed Sources has been superseded by DOE Order O 231.1B Environment, Safety and Health Reporting. O 231.1B identifies the requirements for centralized inventory and transaction reporting for radioactive sealed sources. Each DOE site/facility operator that owns, possesses, uses or maintains in custody those accountable radioactive sealed sources identified in Title 10 Code of Federal Regulation Part 835, Occupational Radiation Protection (10 CFR 835), Appendix E, and International Atomic Energy Agency (IAEA) Categories 1 and 2 radioactive sealed sources identified in Attachment 5, Appendix A of O 321.1B, will submit information to the DOE Radiological Source Registry and Tracking (RSRT) System.

88

Information Content of Particle Tracks  

Science Journals Connector (OSTI)

The information content of a track is analyzed with respect to the prime track-variable g and to the particle velocity on which g depends. Quantities are operationally defined that are applicable to emulsion, bubble-chamber or cloud-chamber tracks inclined with arbitrary dip angles. The theory is developed of the projected linear structure of such particle tracks. Previously derived connections between the true value of g and measurable track features are reviewed. A new and independent estimate of g based on the mean blob length is introduced. The two independent quantities, mean gap length and mean blob length, each yield measurements of g. These are combined into an estimate of maximum likelihood. It is argued that in a practical sense this exhausts the information content of the track. The statistical error of this result is evaluated. It is found that correct utilization of the information in the measured blob lengths greatly reduces the error. Suggestions are made regarding technique for the reduction of error in g and in particle masses estimated from grain-density measurements.

Walter H. Barkas

1961-11-01T23:59:59.000Z

89

On bicycle tire tracks geometry, hatchet planimeter, Menzin's conjecture and oscillation of unicycle tracks  

E-Print Network [OSTI]

The model of a bicycle is a unit segment AB that can move in the plane so that it remains tangent to the trajectory of point A (the rear wheel is fixed on the bicycle frame); the same model describes the hatchet planimeter. The trajectory of the front wheel and the initial position of the bicycle uniquely determine its motion and its terminal position; the monodromy map sending the initial position to the terminal one arises. According to R. Foote's theorem, this mapping of a circle to a circle is a Moebius transformation. We extend this result to multi-dimensional setting. Moebius transformations belong to one of the three types: elliptic, parabolic and hyperbolic. We prove a 100 years old Menzin's conjecture: if the front wheel track is an oval with area at least pi then the respective monodromy is hyperbolic. We also study bicycle motions introduced by D. Finn in which the rear wheel follows the track of the front wheel. Such a ''unicycle" track becomes more and more oscillatory in forward direction. We pr...

Levi, M

2008-01-01T23:59:59.000Z

90

Quantification of line tracking solutions for automotive applications  

Science Journals Connector (OSTI)

Unlike line tracking in automotive painting applications, line tracking for automotive general assembly applications requires position tracking in order to perform assembly operations to a required assembly tolerance. Line tracking quantification experiments ... Keywords: position tracking performance

Jane Shi; Rick F. Rourke; Dave Groll; Peter W. Tavora

2008-08-01T23:59:59.000Z

91

Track 4: Employee Health and Wellness  

Broader source: Energy.gov [DOE]

ISM Workshop Presentations Knoxville Convention Center, Knoxville, TN August 2009 Track 4: Employee Health and Wellness

92

Irregular tooth spacing reduces tracking of roller cone bits  

SciTech Connect (OSTI)

Tracking, which occurs when teeth fall in to the craters formed during previous bit rotations, severely impacts the performance of roller cone rock bits. The tracking tendencies of tungsten carbide insert (TCI) bits are generally considered once the bit is built and tested, rather than during the design process. Once tracking is initiated, crater depth quickly reaches the full projection of the teeth, bringing the cone steel in contact with the rock. This increases the contact area while reducing contact stresses beneath the inserts. Tracking increases the likelihood that neighboring rows of cutters will line up on the hole bottom forcing the bit to rotate about a point other than its geometric center--a phenomenon referred to as off-center rotation or forward whirl. Off-center rotation produces rings of uncut bottom and a further reduction in contact stresses. This paper discusses laboratory and field data used in the development and validation of a proprietary algorithm that determines the optimal tooth spacing to eliminate tracking. This study confirms that an algorithm can be applied effectively in the roller cone bit design process to improve coverage of the rock surface during drilling. In addition, these laboratory tests improve the understanding of a single gear-like wheel, a prerequisite to understanding total bit behavior.

Kenner, J.V. [Hughes Christensen Co., Houston, TX (United States); Boylan, T.P. [Transatlantic Technical Services, Houston, TX (United States)

1996-09-01T23:59:59.000Z

93

Tracking the Invisible:Tracking the Invisible: Learning Where the Object Might be  

E-Print Network [OSTI]

Tracking the Invisible:Tracking the Invisible: Learning Where the Object Might be Helmut Grabner1 the Invisible - ETH-Zurich, Computer Vision Lab #12;Tracking CarlTracking Carl San Francisco, 2010/06/16 3H. Grabner, Tracking the Invisible - ETH-Zurich, Computer Vision Lab #12;Goal: Estimate the Position

Grabner, Helmut

94

Concentrating Solar Power Forum Concentrating Photovoltaics (Presentation)  

SciTech Connect (OSTI)

This presentation's summaries: a convenient truth, comparison of three concentrator technologies, value of high efficiency, and status of industry.

Kurtz, S.

2008-05-06T23:59:59.000Z

95

Single track effects, biostack and risk assessment  

SciTech Connect (OSTI)

This talk addresses the single-track nature of the space radiation environment, and points out the importance of single hits'' in the evaluation of radiation risk for long-term missions occurring outside the earth's magnetic field. A short review is made of biological objects found to show increased effects when hit'' by a single heavy charged-particle in space. A brief discussion is given of the most provocative results from the bacterial spore B. subtilis: experimental evidence that tracks can affect biological systems at much larger distances from the trajectory than previously suspected, and that the resultant inactivation cross section in space calculated for this system is very large. When taken at face value, the implication of these results, when compared to those from experiments performed at ground-based accelerators with beams at low energies in the same LET range, is that high-energy particles can exert their influence a surprising distance from their trajectory and the inactivation cross sections are some twenty times larger than expected. Clearly, beams from high-energy heavy-ion accelerators should be used to confirm these results. For those end points that can also be caused by low-LET beams such as high-energy protons, it is important to measure their action cross sections as well. The ratio of the cross sections for a high-LET beam to that of a low-LET beam is an interesting experimental ratio and, we suggest, of more intrinsic interest than the RBE. It is a measure of the biological'' importance of one particle type relative to another particle type. This ratio will be introduced and given the name RPPE (Relative Per Particle Effectiveness). Values of RPPE will be discussed.

Curtis, S.B.

1992-10-01T23:59:59.000Z

96

Single track effects, biostack and risk assessment  

SciTech Connect (OSTI)

This talk addresses the single-track nature of the space radiation environment, and points out the importance of single ``hits`` in the evaluation of radiation risk for long-term missions occurring outside the earth`s magnetic field. A short review is made of biological objects found to show increased effects when ``hit`` by a single heavy charged-particle in space. A brief discussion is given of the most provocative results from the bacterial spore B. subtilis: experimental evidence that tracks can affect biological systems at much larger distances from the trajectory than previously suspected, and that the resultant inactivation cross section in space calculated for this system is very large. When taken at face value, the implication of these results, when compared to those from experiments performed at ground-based accelerators with beams at low energies in the same LET range, is that high-energy particles can exert their influence a surprising distance from their trajectory and the inactivation cross sections are some twenty times larger than expected. Clearly, beams from high-energy heavy-ion accelerators should be used to confirm these results. For those end points that can also be caused by low-LET beams such as high-energy protons, it is important to measure their action cross sections as well. The ratio of the cross sections for a high-LET beam to that of a low-LET beam is an interesting experimental ratio and, we suggest, of more intrinsic interest than the RBE. It is a measure of the ``biological`` importance of one particle type relative to another particle type. This ratio will be introduced and given the name RPPE (Relative Per Particle Effectiveness). Values of RPPE will be discussed.

Curtis, S.B.

1992-10-01T23:59:59.000Z

97

Feature Tracking Using Reeb Graphs  

SciTech Connect (OSTI)

Tracking features and exploring their temporal dynamics can aid scientists in identifying interesting time intervals in a simulation and serve as basis for performing quantitative analyses of temporal phenomena. In this paper, we develop a novel approach for tracking subsets of isosurfaces, such as burning regions in simulated flames, which are defined as areas of high fuel consumption on a temperature isosurface. Tracking such regions as they merge and split over time can provide important insights into the impact of turbulence on the combustion process. However, the convoluted nature of the temperature isosurface and its rapid movement make this analysis particularly challenging. Our approach tracks burning regions by extracting a temperature isovolume from the four-dimensional space-time temperature field. It then obtains isosurfaces for the original simulation time steps and labels individual connected 'burning' regions based on the local fuel consumption value. Based on this information, a boundary surface between burning and non-burning regions is constructed. The Reeb graph of this boundary surface is the tracking graph for burning regions.

Weber, Gunther H.; Bremer, Peer-Timo; Day, Marcus S.; Bell, John B.; Pascucci, Valerio

2010-08-02T23:59:59.000Z

98

Design and development of a high-concentration photovoltaic concentrator  

SciTech Connect (OSTI)

The design and development of a high concentration photovoltaic concentrator module is discussed. The design concept described herein incorporates a curved groove domed Fresnel lens, a high concentration etched multiple vertical junction (EMVJ) solar cell and a passively cooled direct-bonded copper cell mount all packaged in a plastic module. Two seven inch diameter 1200x domed Fresnel lenses were fabricated using single point diamond turning technology. Testing at both GE and Sandia confirmed optical transmission efficiencies of over 83%. Samples of the latest available EMVJ cells were mounted and installed, with a domed Fresnel lens, into a prototype module. Subsequent testing demonstrated net lens-cell efficiencies of 10 to 13%. As a result of this program, salient conclusions have been formulated as to this technology.

Hodge, R C

1982-04-01T23:59:59.000Z

99

The Majorana Parts Tracking Database  

E-Print Network [OSTI]

The Majorana Demonstrator is an ultra-low background physics experiment searching for the neutrinoless double beta decay of $^{76}$Ge. The Majorana Parts Tracking Database is used to record the history of components used in the construction of the Demonstrator. The tracking implementation takes a novel approach based on the schema-free database technology CouchDB. Transportation, storage, and processes undergone by parts such as machining or cleaning are linked to part records. Tracking parts provides a great logistics benefit and an important quality assurance reference during construction. In addition, the location history of parts provides an estimate of their exposure to cosmic radiation. A web application for data entry and a radiation exposure calculator have been developed as tools for achieving the extreme radio-purity required for this rare decay search.

Abgrall, N; Avignone, F T; Bertrand, F E; Brudanin, V; Busch, M; Byram, D; Caldwell, A S; Chan, Y-D; Christofferson, C D; Combs, D C; Cuesta, C; Detwiler, J A; Doe, P J; Efremenko, Yu; Egorov, V; Ejiri, H; Elliott, S R; Esterline, J; Fast, J E; Finnerty, P; Fraenkle, F M; Galindo-Uribarri, A; Giovanetti, G K; Goett, J; Green, M P; Gruszko, J; Guiseppe, V E; Gusev, K; Hallin, A L; Hazama, R; Hegai, A; Henning, R; Hoppe, E W; Howard, S; Howe, M A; Keeter, K J; Kidd, M F; Kochetov, O; Kouzes, R T; LaFerriere, B D; Leon, J Diaz; Leviner, L E; Loach, J C; MacMullin, J; Martin, R D; Meijer, S J; Mertens, S; Miller, M L; Mizouni, L; Nomachi, M; Orrell, J L; O'Shaughnessy, C; Overman, N R; Petersburg, R; Phillips, D G; Poon, A W P; Pushkin, K; Radford, D C; Rager, J; Rielage, K; Robertson, R G H; Romero-Romero, E; Ronquest, M C; Shanks, B; Shima, T; Shirchenko, M; Snavely, K J; Snyder, N; Soin, A; Suriano, A M; Tedeschi, D; Thompson, J; Timkin, V; Tornow, W; Trimble, J E; Varner, R L; Vasilyev, S; Vetter, K; Vorren, K; White, B R; Wilkerson, J F; Wiseman, C; Xu, W; Yakushev, E; Young, A R; Yu, C -H; Zhitnikov, I

2015-01-01T23:59:59.000Z

100

AHF Booster Tracking with SIMPSONS.  

SciTech Connect (OSTI)

The booster lattice for the Advanced Hydrotest Facility at Los Alamos was tracked in 3-D with the program SIMPSONS, using the full, symplectic lattice from TEAPOT, using the full set of magnet and misalignment errors, as well as full space-charge effects. The only corrections included were a rough closed-orbit correction and chromaticity correction. The lattice was tracked for an entire booster cycle, from multi-turn injection through acceleration to the top energy of 4 GeV, approximately 99,000 turns. An initial injection intensity of 4x1Ol2, injected in 25 turns, resulted in a final intensity of 3 . 2 {approx} 1 0a' {approx}t 4 GeV. Results of the tracking, including emittance growth, particle loss, and particle tune distributions are presented.

Johnson, D. E. (David E.); Neri, F. (Filippo)

2002-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "tracking concentrator pointed" 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

Automatic heliostat track alignment method  

SciTech Connect (OSTI)

This patent describes a heliostat alignment method consisting of a number of steps. The first step consists of commanding a sunbeam centroid to a target location to establish a reference position. The next step searches for the actual sunbeam centroid position and determines the sunbeam centroid position error. These actions are followed by the analysis of the sunbeam centroid position error, correlating the sunbeam position error to errors in a heliostat reference system, and changing the heliostat reference system to correct for track misalignment in order to establish a revised heliostat reference system. The final step is changing the track alignment based on the revised heliostat reference system to a new position to correct the track misalignment.

Not Available

1986-01-14T23:59:59.000Z

102

The Majorana Parts Tracking Database  

E-Print Network [OSTI]

The Majorana Demonstrator is an ultra-low background physics experiment searching for the neutrinoless double beta decay of $^{76}$Ge. The Majorana Parts Tracking Database is used to record the history of components used in the construction of the Demonstrator. The tracking implementation takes a novel approach based on the schema-free database technology CouchDB. Transportation, storage, and processes undergone by parts such as machining or cleaning are linked to part records. Tracking parts provides a great logistics benefit and an important quality assurance reference during construction. In addition, the location history of parts provides an estimate of their exposure to cosmic radiation. A web application for data entry and a radiation exposure calculator have been developed as tools for achieving the extreme radio-purity required for this rare decay search.

The Majorana Collaboration; N. Abgrall; E. Aguayo; F. T. Avignone III; A. S. Barabash; F. E. Bertrand; V. Brudanin; M. Busch; D. Byram; A. S. Caldwell; Y-D. Chan; C. D. Christofferson; D. C. Combs; C. Cuesta; J. A. Detwiler; P. J. Doe; Yu. Efremenko; V. Egorov; H. Ejiri; S. R. Elliott; J. Esterline; J. E. Fast; P. Finnerty; F. M. Fraenkle; A. Galindo-Uribarri; G. K. Giovanetti; J. Goett; M. P. Green; J. Gruszko; V. E. Guiseppe; K. Gusev; A. L. Hallin; R. Hazama; A. Hegai; R. Henning; E. W. Hoppe; S. Howard; M. A. Howe; K. J. Keeter; M. F. Kidd; O. Kochetov; S. I. Konovalov; R. T. Kouzes; B. D. LaFerriere; J. Diaz Leon; L. E. Leviner; J. C. Loach; J. MacMullin; R. D. Martin; S. J. Meijer; S. Mertens; M. L. Miller; L. Mizouni; M. Nomachi; J. L. Orrell; C. O'Shaughnessy; N. R. Overman; R. Petersburg; D. G. Phillips II; A. W. P. Poon; K. Pushkin; D. C. Radford; J. Rager; K. Rielage; R. G. H. Robertson; E. Romero-Romero; M. C. Ronquest; B. Shanks; T. Shima; M. Shirchenko; K. J. Snavely; N. Snyder; A. Soin; A. M. Suriano; D. Tedeschi; J. Thompson; V. Timkin; W. Tornow; J. E. Trimble; R. L. Varner; S. Vasilyev; K. Vetter; K. Vorren; B. R. White; J. F. Wilkerson; C. Wiseman; W. Xu; E. Yakushev; A. R. Young; C. -H. Yu; V. Yumatov; I. Zhitnikov

2015-02-05T23:59:59.000Z

103

Development of Non?Tracking Solar Thermal Technology  

Science Journals Connector (OSTI)

The aims of this research is to develop high temperature solar thermal collectors that do not require complex solar tracking devices to maintain optimal performance. The collector technology developed through these efforts uses non?imaging optics and is referred to as an external compound parabolic concentrator. It is able to operate with a solar thermal efficiency of approximately 50% at a temperature of 200?°?C and can be readily manufactured at a cost between $15 and $18 per square foot.

2011-01-01T23:59:59.000Z

104

SunShot Concentrating Solar Power Program | Department of Energy  

Office of Environmental Management (EM)

Program SunShot Concentrating Solar Power Program This PowerPoint slide deck, entitled "SunShot Concentrating Solar Power Program," was originally presented by Ranga Pitchumani at...

105

SunShot Concentrating Solar Power Program Update | Department...  

Office of Environmental Management (EM)

Program Update SunShot Concentrating Solar Power Program Update This PowerPoint slide deck, entitled "SunShot Concentrating Solar Power Program Update," was originally presented by...

106

Robotic vehicle with multiple tracked mobility platforms  

DOE Patents [OSTI]

A robotic vehicle having two or more tracked mobility platforms that are mechanically linked together with a two-dimensional coupling, thereby forming a composite vehicle of increased mobility. The robotic vehicle is operative in hazardous environments and can be capable of semi-submersible operation. The robotic vehicle is capable of remote controlled operation via radio frequency and/or fiber optic communication link to a remote operator control unit. The tracks have a plurality of track-edge scallop cut-outs that allow the tracks to easily grab onto and roll across railroad tracks, especially when crossing the railroad tracks at an oblique angle.

Salton, Jonathan R. (Albuquerque, NM); Buttz, James H. (Albuquerque, NM); Garretson, Justin (Albuquerque, NM); Hayward, David R. (Wetmore, CO); Hobart, Clinton G. (Albuquerque, NM); Deuel, Jr., Jamieson K. (Albuquerque, NM)

2012-07-24T23:59:59.000Z

107

PowerPoint Presentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

TWP TWP Storm Types TWP Storm Types Fig. 1. ARM TWP sites experience different convective clouds within the TWP: (1) ITCZ, (2) SPCZ, (3) Island convection, and (4) Coastal convection. ARM sites: D = Darwin, M = Manus, N = Nauru). Plot color scheme: yellow is cold, blue is warm. 1 2 3 4 M M N N D D 6 December, 2005, 5:30 GMT 6 December, 2005, 5:30 GMT 1. OVERVIEW 1. OVERVIEW A. Previous Work A. Previous Work Tracked clouds with geostationary satellite data to determine the context of the cloud state observed at the ARM Sites, such as the cloud's life-cycle stage and its representativeness of the region. B. Goal B. Goal Expanding classification system for: * Cloud regime classification * Convective regime classification * Subsequent tracking of features' paths and

108

Solar Concentration in Space  

Science Journals Connector (OSTI)

Solar concentrators go space. Lens and mirror-based solar concentrators have recently begun to boost photovoltaic power supplies for satellites in space. In 1998, the first mission carrying solar concentrators...

Dr. Ralf Leutz; Dr. Akio Suzuki

2001-01-01T23:59:59.000Z

109

Postmortem Memantine Concentrations  

Science Journals Connector (OSTI)

......case-report Case Report Postmortem Memantine Concentrations Nichole Bynum * Justin...Postmortem fluid and tissue concentrations of memantine (Namenda), a drug recently approved...in a suspicious death. In addition, memantine concentrations considered to be incidental......

Nichole Bynum; Justin Poklis; Diana Garside; Ruth Winecker

2007-05-01T23:59:59.000Z

110

Enhancements to System for Tracking Radioactive Waste Shipments...  

Broader source: Energy.gov (indexed) [DOE]

now track shipments of radioactive materials and access transportation information on mobile devices. Transportation Tracking and Communication System users can now track...

111

Corrective Action Tracking System (CATS) | Department of Energy  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Action Tracking System (CATS) Corrective Action Tracking System (CATS) The CATS web-based database is used to enter, track, and report the status of corrective actions...

112

AGATA - Advanced Gamma Tracking Array  

E-Print Network [OSTI]

The Advanced GAmma Tracking Array (AGATA) is a European project to develop and operate the next generation gamma-ray spectrometer. AGATA is based on the technique of gamma-ray energy tracking in electrically segmented high-purity germanium crystals. This technique requires the accurate determination of the energy, time and position of every interaction as a gamma ray deposits its energy within the detector volume. Reconstruction of the full interaction path results in a detector with very high efficiency and excellent spectral response. The realization of gamma-ray tracking and AGATA is a result of many technical advances. These include the development of encapsulated highly-segmented germanium detectors assembled in a triple cluster detector cryostat, an electronics system with fast digital sampling and a data acquisition system to process the data at a high rate. The full characterization of the crystals was measured and compared with detector-response simulations. This enabled pulse-shape analysis algorithms, to extract energy, time and position, to be employed. In addition, tracking algorithms for event reconstruction were developed. The first phase of AGATA is now complete and operational in its first physics campaign. In the future AGATA will be moved between laboratories in Europe and operated in a series of campaigns to take advantage of the different beams and facilities available to maximize its science output. The paper reviews all the achievements made in the AGATA project including all the necessary infrastructure to operate and support the spectrometer.

S. Akkoyun; A. Algora; B. Alikhani; F. Ameil; G. de Angelis; L. Arnold; A. Astier; A. Ataç; Y. Aubert; C. Aufranc; A. Austin; S. Aydin; F. Azaiez; S. Badoer; D. L. Balabanski; D. Barrientos; G. Baulieu; R. Baumann; D. Bazzacco; F. A. Beck; T. Beck; P. Bednarczyk; M. Bellato; M. A. Bentley; G. Benzoni; R. Berthier; L. Berti; R. Beunard; G. Lo Bianco; B. Birkenbach; P. G. Bizzeti; A. M. Bizzeti-Sona; F. Le Blanc; J. M. Blasco; N. Blasi; D. Bloor; C. Boiano; M. Borsato; D. Bortolato; A. J. Boston; H. C. Boston; P. Bourgault; P. Boutachkov; A. Bouty; A. Bracco; S. Brambilla; I. P. Brawn; A. Brondi; S. Broussard; B. Bruyneel; D. Bucurescu; I. Burrows; A. Bürger; S. Cabaret; B. Cahan; E. Calore; F. Camera; A. Capsoni; F. Carrió; G. Casati; M. Castoldi; B. Cederwall; J. -L. Cercus; V. Chambert; M. El Chambit; R. Chapman; L. Charles; J. Chavas; E. Clément; P. Cocconi; S. Coelli; P. J. Coleman-Smith; A. Colombo; S. Colosimo; C. Commeaux; D. Conventi; R. J. Cooper; A. Corsi; A. Cortesi; L. Costa; F. C. L. Crespi; J. R. Cresswell; D. M. Cullen; D. Curien; A. Czermak; D. Delbourg; R. Depalo; T. Descombes; P. Désesquelles; P. Detistov; C. Diarra; F. Didierjean; M. R. Dimmock; Q. T. Doan; C. Domingo-Pardo; M. Doncel; F. Dorangeville; N. Dosme; Y. Drouen; G. Duchêne; B. Dulny; J. Eberth; P. Edelbruck; J. Egea; T. Engert; M. N. Erduran; S. Ertürk; C. Fanin; S. Fantinel; E. Farnea; T. Faul; M. Filliger; F. Filmer; Ch. Finck; G. de France; A. Gadea; W. Gast; A. Geraci; J. Gerl; R. Gernhäuser; A. Giannatiempo; A. Giaz; L. Gibelin; A. Givechev; N. Goel; V. González; A. Gottardo; X. Grave; J. Gr?bosz; R. Griffiths; A. N. Grint; P. Gros; L. Guevara; M. Gulmini; A. Görgen; H. T. M. Ha; T. Habermann; L. J. Harkness; H. Harroch; K. Hauschild; C. He; A. Hernández-Prieto; B. Hervieu; H. Hess; T. Hüyük; E. Ince; R. Isocrate; G. Jaworski; A. Johnson; J. Jolie; P. Jones; B. Jonson; P. Joshi; D. S. Judson; A. Jungclaus; M. Kaci; N. Karkour; M. Karolak; A. Ka?ka?; M. Kebbiri; R. S. Kempley; A. Khaplanov; S. Klupp; M. Kogimtzis; I. Kojouharov; A. Korichi; W. Korten; Th. Kröll; R. Krücken; N. Kurz; B. Y. Ky; M. Labiche; X. Lafay; L. Lavergne; I. H. Lazarus; S. Leboutelier; F. Lefebvre; E. Legay; L. Legeard; F. Lelli; S. M. Lenzi; S. Leoni; A. Lermitage; D. Lersch; J. Leske; S. C. Letts; S. Lhenoret; R. M. Lieder; D. Linget; J. Ljungvall; A. Lopez-Martens; A. Lotodé; S. Lunardi; A. Maj; J. van der Marel; Y. Mariette; N. Marginean; R. Marginean; G. Maron; A. R. Mather; W. M?czy?ski; V. Mendéz; P. Medina; B. Melon; R. Menegazzo; D. Mengoni; E. Merchan; L. Mihailescu; C. Michelagnoli; J. Mierzejewski; L. Milechina; B. Million; K. Mitev; P. Molini; D. Montanari; S. Moon; F. Morbiducci; R. Moro; P. S. Morrall; O. Möller; A. Nannini; D. R. Napoli; L. Nelson; M. Nespolo; V. L. Ngo; M. Nicoletto; R. Nicolini; Y. Le Noa; P. J. Nolan; M. Norman; J. Nyberg; A. Obertelli; A. Olariu; R. Orlandi; D. C. Oxley; C. Özben; M. Ozille; C. Oziol; E. Pachoud; M. Palacz; J. Palin; J. Pancin; C. Parisel; P. Pariset; G. Pascovici; R. Peghin; L. Pellegri; A. Perego; S. Perrier; M. Petcu; P. Petkov; C. Petrache; E. Pierre; N. Pietralla; S. Pietri; M. Pignanelli; I. Piqueras; Z. Podolyak; P. Le Pouhalec; J. Pouthas; D. Pugnére; V. F. E. Pucknell; A. Pullia; B. Quintana; R. Raine; G. Rainovski; L. Ramina; G. Rampazzo; G. La Rana; M. Rebeschini; F. Recchia; N. Redon; M. Reese; P. Reiter; P. H. Regan; S. Riboldi; M. Richer; M. Rigato; S. Rigby; G. Ripamonti; A. P. Robinson; J. Robin; J. Roccaz; J. -A. Ropert; B. Rossé; C. Rossi Alvarez; D. Rosso; B. Rubio; D. Rudolph; F. Saillant; E. ?ahin; F. Salomon; M. -D. Salsac; J. Salt; G. Salvato; J. Sampson; E. Sanchis; C. Santos; H. Schaffner; M. Schlarb; D. P. Scraggs; D. Seddon; M. ?enyi?it; M. -H. Sigward; G. Simpson; J. Simpson; M. Slee; J. F. Smith; P. Sona; B. Sowicki; P. Spolaore; C. Stahl; T. Stanios; E. Stefanova; O. Stézowski; J. Strachan; G. Suliman; P. -A. Söderström; J. L. Tain; S. Tanguy; S. Tashenov; Ch. Theisen; J. Thornhill; F. Tomasi; N. Toniolo; R. Touzery; B. Travers; A. Triossi; M. Tripon; K. M. M. Tun-Lanoë; M. Turcato; C. Unsworth; C. A. Ur; J. J. Valiente-Dobon; V. Vandone; E. Vardaci; R. Venturelli; F. Veronese; Ch. Veyssiere; E. Viscione; R. Wadsworth; P. M. Walker; N. Warr; C. Weber; D. Weisshaar; D. Wells; O. Wieland; A. Wiens; G. Wittwer; H. J. Wollersheim; F. Zocca; N. V. Zamfir; M. Zi?bli?ski; A. Zucchiatti

2011-11-24T23:59:59.000Z

113

Tracking Radioactive Sources in Commerce  

E-Print Network [OSTI]

Area Network­mobile phone, ethernet and/or satellite � security--encryption, short broadcast bursts Randy Walker, Robert Abercrombie, Rocky Cline, Sabrina Phillips; Oak Ridge National Laboratory Frederick security by commercial shippers � Knowledge of routes routinely taken � Inability to track location

114

An insitu borescopic quantitative imaging profiler for the measurement of high concentration sediment velocity  

E-Print Network [OSTI]

of high concentration sediment velocity Edwin A. Cowen •instantaneous velocity in high sediment concentration ?ows,point reveals the sheet ?ow sediment velocities to be highly

Cowen, Edwin A.; Dudley, Russell D.; Liao, Qian; Variano, Evan A.; Liu, Philip L.-F.

2010-01-01T23:59:59.000Z

115

Childhood Cancer Tracking Initiative in Massachusetts  

E-Print Network [OSTI]

Childhood Cancer Tracking Initiative in Massachusetts: Developing a New Electronic Tool Presented (CEH) Massachusetts Department of Public Health (MDPH) #12;Childhood Cancer Tracking Initiative "Develop methods for linking environmental databases with childhood cancer incidence data to identify

116

Tracking Discontinuous Motion Using Bayesian Inference  

Science Journals Connector (OSTI)

Robustly tracking people in visual scenes is an important task for surveillance, human-computer interfaces and visually mediated interaction. Existing attempts at tracking a person’s head and hands deal with a...

Jamie Sherrah; 1]Shaogang Gong

2000-01-01T23:59:59.000Z

117

Floating Robots Track Water Flow With Smartphones  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Floating Robots Track Water Flow, Stream Data via Smartphones Floating Robots Track Water Flow, Stream Data via Smartphones May 9, 2012 | Tags: Carver Jon Bashor, Jbashor@lbl.gov,...

118

Improving NCC-based direct visual tracking  

Science Journals Connector (OSTI)

Direct visual tracking can be impaired by changes in illumination if the right choice of similarity function and photometric model is not made. Tracking using the sum of squared differences, for instance, often needs to be coupled with a photometric ...

Glauco Garcia Scandaroli; Maxime Meilland; Rogério Richa

2012-10-01T23:59:59.000Z

119

Optical and thermodynamic analysis and optimization of a novel solar concentrating system for distributed power generation.  

E-Print Network [OSTI]

??A novel central receiver power system utilizing linked-tracking heliostats is analyzed for distributed-scale concentrated solar power. Smaller linkage groupings are typically found to have a… (more)

Dunham, Marc Tyler Deo

2012-01-01T23:59:59.000Z

120

ARM - Point Reyes News  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Experiment Planning MASRAD Proposal Abstract and Related Campaigns Outreach Posters Climate Research at Point Reyes National Seashore (horizontal) Climate Research at...

Note: This page contains sample records for the topic "tracking concentrator pointed" 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

Contemporary Trends power point  

E-Print Network [OSTI]

Power point slides guiding presentation on closing the gap between political acceptability and administrative sustainability as a prerequisite for effective governance. Leadership challenges are described

Nalbandian, John

2013-02-01T23:59:59.000Z

122

Point force and generalized point sources on the surface of semi-infinite transversely isotropic material.  

SciTech Connect (OSTI)

the full set of coupled fields due to the arbitrarily oriented point force and concentrated generalized point source, that represents either the diffusive chemical substance concentration or heat applied at the boundary of the half-space) are derived in elementary functions in a simple way, using methods of the potential theory. In the course of the analysis we derived the general solution of the field equations, represented in terms of four harmonic potential functions, which may also be relevant to other problems of chemical concentration or heat diffusion. These solutions constitute generalization of Boussinesq s and Cerruti s problems of elasticity for the chemically diffusive and/or thermoelastic materials.

Karapetian, E. [Suffolk University, Boston; Kalinin, Sergei V [ORNL

2011-01-01T23:59:59.000Z

123

Track 6: Integrating Safety Into Security Operations  

Broader source: Energy.gov [DOE]

ISM Workshop Presentations Knoxville Convention Center, Knoxville, TN August 2009 Track 6: Integrating Safety Into Security Operations

124

Track 5: Integration of Safety Into Design  

Broader source: Energy.gov [DOE]

ISM Workshop Presentations Knoxville Convention Center, Knoxville, TN August 2009 Track 5: Integration of Safety Into Design

125

Rail ClipsRail Clips Track Renewal  

E-Print Network [OSTI]

Rail ClipsRail Clips and Track Renewal ver. 1 ME 6222: Manufacturing Processes and Systems Prof. J 2009 7 #12;Track Renewal ­ Tie replacement ballast packingTie replacement, ballast packing ME 6222: Manufacturing Processes and Systems Prof. J.S. Colton © GIT 2009 8 #12;Track Renewal ME 6222: Manufacturing

Colton, Jonathan S.

126

Overview o floating point  

E-Print Network [OSTI]

condition codes and branches are same as for single-precision o absolute value and negation can Co-processor o Integer, BCD, and floating point representations o floating point have sign instructions) or even popped twice (FCOMPP) o tests set condition codes: - C0: less or unordered

Biagioni, Edoardo S.

127

Point-Based Graphics  

Science Journals Connector (OSTI)

The polygon-mesh approach to 3D modeling was a huge advance, but today its limitations are clear. Longer render times for increasingly complex images effectively cap image complexity, or else stretch budgets and schedules to the breaking point. Point-based ... Keywords: Computer Graphics, Computers

Markus Gross; Hanspeter Pfister

2007-06-01T23:59:59.000Z

128

Train track expansions of measured foliations February 16, 2003  

E-Print Network [OSTI]

Train track expansions of measured foliations Lee Mosher February 16, 2003 Contents 1 Introduction foliations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 1.5 Train tracks and train track's classification of mapping classes . . . . . . . . . . . . . . 47 3 Train tracks 49 3.1 Pretracks

Mosher, Lee

129

Train track expansions of measured foliations December 28, 2003  

E-Print Network [OSTI]

Train track expansions of measured foliations Lee Mosher December 28, 2003 Contents 1 Introduction foliations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 1.5 Train tracks and train track's classification of mapping classes . . . . . . . . . . . . . . 53 3 Train tracks 55 3.1 Pretracks

Mosher, Lee

130

PowerPoint Presentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

to concentration of particles with D > 100 m measured by Cloud Imaging Probe (CIP), N>100. Inlet Shroud CAS > CDP due to shattering because CASCDP ratio increases with...

131

Photovoltaic concentrator module improvements study  

SciTech Connect (OSTI)

This report presents results of a project to design and fabricate an improved photovoltaic concentrator module. Using previous work as a baseline, this study conducted analyses and testing to select major module components and design features. The lens parquet and concentrator solar cell were selected from the highest performing, available components. A single 185X point-focus module was fabricated by the project team and tested at Sandia. Major module characteristics include a 6 by 4 compression-molded acrylic lens parquet (0.737 m{sup 2} area), twenty-four 0.2 ohms-cm, FZ, p-Si solar cells (1.56 cm{sup 2} area) soldered to ceramic substrates and copper heat spreaders, and an aluminized steel housing with corrugated bottom. This project marked the first attempt to use prismatic covers on solar cells in a high-concentration, point-focus application. Cells with 15 percent metallization were obtained, but problems with the fabrication and placement of prismatic covers on these cells lead to the decision not to use covers in the prototype module. Cell assembly fabrication, module fabrication, and module optical design activities are presented here. Test results are also presented for bare cells, cell assemblies, and module. At operating conditions of 981 watts/m{sup 2} DNI and an estimated cell temperature of 65{degrees}C, the module demonstrated an efficiency of 13.9 percent prior to stressed environmental exposure. 12 refs., 56 figs., 7 tabs.

Levy, S.L.; Kerschen, K.A. (Black and Veatch, Kansas City, MO (United States)); Hutchison, G. (Solar Kinetics, Inc., Dallas, TX (United States)); Nowlan, M.J. (Spire Corp., Bedford, MA (United States))

1991-08-01T23:59:59.000Z

132

PowerPoint Presentation  

Broader source: Energy.gov (indexed) [DOE]

Rail Topic Group Transportation External Coordination Rail Topic Group Rail Topic Group Transportation External Coordination Rail Topic Group Presented by: Presented by: Cort Richardson Council of State Governments- Eastern Regional Conference March 15 2006 March 15 2006 Washington, DC Washington, DC 2 Rail Topic Group Summary * Since the last TEC meeting in September, the approach of the Topic Group was to divide into subgroups to address activities important to the Topic Group as a whole * The subgroups are: - Inspections - Tracking and Radiation Monitoring - Planning - Lessons Learned - TRAGIS - Legal Weight Truck Shipments

133

Plenary II -- Track Safety Standards  

Broader source: Energy.gov (indexed) [DOE]

TSS 2001 A TSS 2001 A V 1.0 1 Federal Railroad Administration Track Safety Standards (TSS) 49 CFR Part 213 Subpart A - General Excepted Track & Classes 1 - 5 Overview TSS 2001 A V 1.0 2 Presentation Notes * This presentation is intended to provide guidance in broad terms. It is not intended to serve as a complete explanation of the regulations or as a substitute for application of the regulations to specific facts. * With the exception of definitions, each section shown in this presentation are brief summaries of the regulation text. User must consult the complete regulation documentation when necessary. * This presentation is based on the Final Rule published in the Federal Register June 22, 1998, Vol. 63, No. 119, [Docket RST-90-1, Notice 8] effective Sept. 21, 1998 and

134

Keeping track of the damage  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

News Archives: News Archives: 2012 | 2011 | 2010 | 2009 2008 | 2007 | 2006 | 2005 2004 | 2003 | 2002 | 2001 2000 Subscribe to APS News rss feed Keeping track of the damage Scientists resolve long-standing mystery of ion-solid interactions Reprinted with kind permission from ScienceWise - Science Magazine of the Australian National University JANUARY 27, 2009 Bookmark and Share Dr. Patrick Kluth and Claudia Schnohr. Silica (silicon dioxide) is the most abundant mineral in the earth's crust and consequently is a core component in many rocks. It's quite common for such rocks to also contain natural traces of materials like uranium that undergo slow radioactive decay. This radioactivity produces energetic particles that smash through the surrounding silica creating tracks of localized damage in their wake.

135

Point-contact spectroscopy  

Science Journals Connector (OSTI)

Micro-contacts between metals at low temperatures reveal non-linear structures in the current-voltage characteristics. These deviations from Ohm's law allow an energy-resolved spectroscopy of the interaction of the conduction electrons with elementary excitations (e.g. phonons) in a metal. To explain the method, the important parameters (electron mean free path versus contact dimension) in point-contact spectroscopy will be discussed together with examples of spectroscopic information obtained in various systems. Local temperature gradients in the contact region offer the possibility to study thermo-electric phenomena in small constrictions, such as thermal voltages in non-homogeneous contacts and quenching of the phonon-drag term in the thermo-power in homogeneous contacts. Besides these aspects of the point-contact technique, recent experiments will be shown with applications of point contacts other than just spectroscopy: magneto-resistance of a point contact, high-frequency rectification with a point contact as the non-linear element, electron focusing using a double point-contact set-up, electrical noise in constrictions and generation of phonons by means of point contacts.

A M Duif; A G M Jansen; P Wyder

1989-01-01T23:59:59.000Z

136

Single nanoparticle tracking spectroscopic microscope  

DOE Patents [OSTI]

A system that can maintain and track the position of a single nanoparticle in three dimensions for a prolonged period has been disclosed. The system allows for continuously imaging the particle to observe any interactions it may have. The system also enables the acquisition of real-time sequential spectroscopic information from the particle. The apparatus holds great promise in performing single molecule spectroscopy and imaging on a non-stationary target.

Yang, Haw (Moraga, CA); Cang, Hu (Berkeley, CA); Xu, Cangshan (Berkeley, CA); Wong, Chung M. (San Gabriel, CA)

2011-07-19T23:59:59.000Z

137

PowerPoint Presentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

974 1 974 1 Introducing SAM (Sun and Aureole Measurement), a New, Ground-based Capability for Measuring Cloud Optical Properties Presented to Cloud Properties Working Group IRF Working Group ARM Science Team Meeting John DeVore (devore@visidyne.com) A.T. Stair (ats@visidyne.com) Bob McClatchey 1 (RMcClatchey@msn.com) Visidyne, Inc. 781-273-2820 March 2006 1 Consultant VI-4974 2 Space-Based Sun-Tracking Zenith-Viewing Cirrus (Ice Columns) Solar elevation = 45 deg Sat depression = 45 deg Surface albedo = 0.2 10 +4 10 +2 10 +0 10 -2 550 nm Radiance (W/cm 2 /sr/μm) 0.1 1.0 100. 10. Optical Depth Space-Based Sun-Tracking Zenith-Viewing Cirrus (Ice Columns) Solar elevation = 45 deg Sat depression = 45 deg Surface albedo = 0.2 10 +4 10 +2 10 +0 10 -2 550 nm Radiance (W/cm 2 /sr/μm) 0.1 1.0 100. 10. Optical Depth

138

Renewable Energy Finance Tracking Initiative (REFTI) Solar Trend Analysis  

SciTech Connect (OSTI)

This report is a summary of the finance trends for small-scale solar photovoltaic (PV) projects (PV <1 MW), large-scale PV projects (PV greater than or equal to 1 MW), and concentrated solar power projects as reported in the National Renewable Energy Laboratory's Renewable Energy Finance Tracking Initiative (REFTI). The report presents REFTI data during the five quarterly periods from the fourth quarter of 2009 to the first half of 2011. The REFTI project relies exclusively on the voluntary participation of industry stakeholders for its data; therefore, it does not offer a comprehensive view of the technologies it tracks. Despite this limitation, REFTI is the only publicly available resource for renewable energy project financial terms. REFTI analysis offers usable inputs into the project economic evaluations of developers and investors, as well as the policy assessments of public utility commissions and others in the renewable energy industry.

Hubbell, R.; Lowder, T.; Mendelsohn, M.; Cory, K.

2012-09-01T23:59:59.000Z

139

Photovoltaic concentrator initiative: Concentrator cell development  

SciTech Connect (OSTI)

This project involves the development of a large-area, low-cost, high-efficiency concentrator solar cell for use in the Entech 22-sun linear-focus Fresnel lens concentrator system. The buried contact solar cell developed at the University of New South Wales was selected for this project. Both Entech and the University of New South Wales are subcontractors. This annual report presents the program efforts from November 1990 through December 1991, including the design of the cell, development of a baseline cell process, and presentation of the results of preliminary cell processing. Important results include a cell designed for operation in a real concentrator system and substitution of mechanical grooving for the previously utilized laser scribing.

Wohlgemuth, J.H.; Narayanan, S. [Solarex Corp., Frederick, MD (US)

1993-05-01T23:59:59.000Z

140

PowerPoint Presentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

overflow * All liquid discharges cease January 1992 100 N Area Environmental Issues * Strontium-90 concentrations at N Springs reaches 5,000 pCi liter in 1985 * Strontium-90...

Note: This page contains sample records for the topic "tracking concentrator pointed" 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

PowerPoint Presentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

HIAPER Cloud Radar (HCR) HIAPER Cloud Radar (HCR) Vivek, Eric Loew, Gordon Farquharson, Scott Spuler and Wen-Chau Lee Earth Observing Laboratory NCAR, Boulder, Colorado NCAR maintains and deploys a suite of world-class remote sensing instruments (radars and lidars) in support of the atmospheric science community Develops innovative and state of the art "next-generation" remote sensors Motivation for Observational Instruments Key scientific challenges: When and where convection will be initiated? How to improve accuracy of a NWP model in describing on set of precipitation process? What factors control intensity and track of an hurricane? How does convection influence UTLS chemistry? How to parameterize aerosol and cloud interaction in an earth system model? Dual Use: Instruments should be deployable on airborne

142

PowerPoint Presentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Studies with the Studies with the Duke University Helicopter Observation Platform (HOP) M Adam Bolch and Roni Avissar Department of Civil and Environmental Engineering Duke University October 16, 2008 Why a helicopter? 1. Various environmental observations require low altitude, very-high frequency of sampling, and/or slow speed of sampling (e.g., aerosols, which have a key impact on climate and health; fluxes - water, carbon, others) 2. Maneuverability (complex terrain, urban areas, quick turns for flight tracks) 3. Time at station (with a fuel truck on the ground, no need to commute to an airport) 4. Remote location (e.g., operation from a ship) Why a helicopter? Federal Aviation Regulation (FAR) § 91.119 Minimum safe altitudes: General. Except when necessary for takeoff or landing, no person may operate an aircraft below the following altitudes:

143

PowerPoint Presentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Cloud Life Cycle and Structure Cloud Life Cycle and Structure A.M. Vogelmann, E. Luke, M.P. Jensen, P. Kollias, Brookhaven National Laboratory, Upton, New York and E.R. Boer LUEBEC, San Diego, CA SUMMARY SUMMARY * * Cloud tracking using geostationary satellite data provides a context of the cloud state observed at the ARM Sites, including the cloud's life-cycle stage and its representativeness of the region. * * Examples are presented of the duration and paths of mesoscale convective systems within the Tropical Western Pacific. * * This information will be used to interpret the cloud microphysical retrievals and overlap structure measured at the ARM sites. Reference Reference Boer, E. R., and V. Ramanathan, 1997: Lagrangian approach for deriving cloud characteristics from satellite observations and its implications to cloud

144

PowerPoint Presentation  

Broader source: Energy.gov (indexed) [DOE]

in Western Utility Energy Efficiency in Western Utility in Western Utility Energy Efficiency in Western Utility Resource Plans Resource Plans Implications for Regional Assessments and Implications for Regional Assessments and Initiatives Initiatives Charles Goldman Nicole Hopper Lawrence Berkeley National Laboratory CREPC Meeting San Diego, CA September 28, 2006 Overview of Presentation Overview of Presentation * LBNL/CREPC Resource Assessment Project - Overview - Data Sources * Treatment of Energy Efficiency (EE) in Resource Plans - Why does it matter? * Energy Efficiency in Recent Resource Plans: - Common Inconsistencies and Data Problems - Levels of EE Proposed in Recent Utility Resource Plans * Recommendations and tools for tracking and reporting EE in future resource plans to support West-wide goals and analysis LBNL/CREPC Resource Assessment Project LBNL/CREPC Resource Assessment Project

145

A New Zealand Test Of The Track-Etch Method Of Prospecting For Geothermal  

Open Energy Info (EERE)

Zealand Test Of The Track-Etch Method Of Prospecting For Geothermal Zealand Test Of The Track-Etch Method Of Prospecting For Geothermal Steam Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A New Zealand Test Of The Track-Etch Method Of Prospecting For Geothermal Steam Details Activities (0) Areas (0) Regions (0) Abstract: The Track Etch® system for radon detection was evaluated as a geothermal exploration technique in a known geothermal resource area in New Zealand called the Craters of the Moon (previously known as "Karapiti"). Very strong radon anomalies spaced along mapped fault traces were detected using 60-m sample spacings. Such radon anomalies may indicate good areas to drill for steam. The anomalies detected in these tests were located inside a larger area known to have above-back-ground concentrations of radon and

146

Study of freezing-point depression of selected food extracts  

SciTech Connect (OSTI)

The phenomenon of freezing-point depression that accompanies the solute concentration of selected food extracts was investigated to reveal the characteristics of solid-liquid phase equilibrium. The freezing curves of various food extracts did not exhibit ideal solution behavior in the higher concentration range. The experimental data were fitted to new freezing-point depression equations by the method of nonlinear least squares, and the results clearly indicated that the calculated freezing points at various concentrations were in good agreement with the experimental data. Furthermore, by using the determined parameters, the freezing ratio and the activation coefficient were derived.

Tanaka, Fumihiko [Kagoshima Univ. (Japan). Dept. of Agricultural Systems Engineering; Murata, Satoshi; Habara, Kazuhiro; Amaratunga, K.S.P. [Kyushu Univ., Fukuoka (Japan). Dept. of Agricultural Engineering

1996-12-31T23:59:59.000Z

147

Strategic Focus Points  

Broader source: Energy.gov (indexed) [DOE]

Focus Points Focus Points June 2011 1. Establish the human capital and organizational foundation to create a high-performing organization. 2. Implement a cyber risk-management and incident response program that ensures effective security of Federal and M&O networks, provides appropriate flexibility, and meets legal requirements and OMB expectations. 3. Improve IT Services (EITS) into a best-in-class provider from both a technical and business perspective. 4. Implement and institutionalize a reformed, integrated information management governance process that respects the goal to treat M&Os distinctively different than true Federal entities. 5. Transition to 5-year planning and programming, using the NNSA Planning, Programming, Budgeting and Evaluation (PPBE) process as a starting point to include resource and requirements validation.

148

Improving Floating Point Compression  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Improving Improving Floating Point Compression through Binary Masks Leonardo A. Bautista Gomez Argonne National Laboratory Franck Cappello Argonne National Laboratory Abstract-Modern scientific technology such as particle accel- erators, telescopes and supercomputers are producing extremely large amounts of data. That scientific data needs to be processed using systems with high computational capabilities such as supercomputers. Given that the scientific data is increasing in size at an exponential rate, storing and accessing the data is becoming expensive in both, time and space. Most of this scientific data is stored using floating point representation. Scientific applications executed in supercomputers spend a large amount of CPU cycles reading and writing floating point values, making data compression techniques an interesting way to increase computing efficiency.

149

Chicago Office NEPA Tracking Number U. S. DEPARTMENT OF ENERGY  

Broader source: Energy.gov (indexed) [DOE]

SFCH F 560-ACQ SFCH F 560-ACQ (11/05) Previous editions are obsolete. ~1,6~.. --1 b Chicago Office NEPA Tracking Number U. S. DEPARTMENT OF ENERGY OFFICE OF SCIENCE -- CHICAGO OFFICE NATIONAL ENVIRONMENTAL POLICY ACT (NEPA) ENVIRONMENTAL EVALUATION NOTIFICATION FORM To be completed by "financial assistance award" organization receiving Federal funding. For assistance (including a point of contact), see "Instructions for Preparing SC-CH F-560, Environmental Evaluation Notification Form ". Solicitation/Award No. (if applicable): N/A Organization Name: New Brunswick Laboratory (NBL) Title of Proposed Project/Research: GENERIC CATEGORICAL EXCLUSION (CX) FOR THE NBL: Renovations and maintenance activities for buildings, structures, infrastructures and equipment

150

Three-dimensional tracking and behaviour monitoring of multiple fruit flies  

Science Journals Connector (OSTI)

...mean zero and standard deviation of...reconstructed three-dimensional points. NRE...a metric for measuring the accuracy...R. Soc. Interface 5, 1181-1191...real-time three-dimensional tracking of...R. Soc. Interface 8, 395-409...3D trajectory measuring of large numbers...

2013-01-01T23:59:59.000Z

151

NREL: Concentrating Solar Power Research - Laboratory Capabilities  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Laboratory Capabilities Laboratory Capabilities To research, develop, and test a variety of concentrating solar power technologies, NREL features the following laboratory capabilities: High-Flux Solar Furnace (HFSF) Large Payload Solar Tracker Advanced Optical Materials Laboratory Advanced Thermal Storage Materials Laboratory Optical Testing Laboratory and Beam Characterization System Receiver Test Laboratory Heat Collection Element (HCE) Temperature Survey Photo of NREL's High-Flux Solar Furnace. NREL's High-Flux Solar Furnace. High-Flux Solar Furnace (HFSF) The power generated at NREL's High-Flux Solar Furnace (HFSF) can be used to expose, test, and evaluate many components-such as receivers, collectors, and reflector materials-used in concentrating solar power systems. The 10-kilowatt HFSF consists of a tracking heliostat and 25 hexagonal

152

Energy Intensity Baselining and Tracking Guidance  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Learn more at betterbuildings.energy.gov Energy Intensity Baselining and Tracking Guidance i Preface The U.S. Department of Energy's (DOE) Better Buildings, Better Plants Program...

153

Novel Nanoparticle Tracking Device | The Ames Laboratory  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Novel Nanoparticle Tracking Device A new technique simultaneously illuminates the location, orientation and rotation in 3D of individual gold nanorods. Gold nanorods have been used...

154

Tracking New Coal-Fired Power Plants  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

January 8, 2010 National Energy Technology Laboratory Office of Systems Analyses and Planning Erik Shuster 2 Tracking New Coal-Fired Power Plants This report is intended to...

155

February 2013 Point Sheets  

E-Print Network [OSTI]

February 2013 MPTs and Point Sheets National Conference of Bar Examiners 302 South Bedford Street)...............................................30 LIBRARY Excerpts from the Indian Child Welfare Act of 1978, 25 U.S.C. §§ 1901 et seq...................33 Department of the Interior, Bureau of Indian Affairs, Guidelines for State Courts; Indian Child Custody

Marsh, David

156

MYSTERY OF POINT CHARGES  

E-Print Network [OSTI]

for more general potentials and dynamical systems are obtained in [9]. ..... with a suitable multiple of Q: this operation does not change common zeros of Q ...... Terao [16] on the number of critical points for the product of powers of real linear .... J.E.Goodman and J. O'Rourke eds.,Handbook of discrete and computational ...

2006-06-12T23:59:59.000Z

157

SETTLEMENT POINTS Congo, Democra  

E-Print Network [OSTI]

! ! ! ! ( ( ( ( ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ( ( ( ( ( (( ( ( ( ( ( ( ( ( (!( Botswana Congo, Democra Congo Namibia Zambia GRUMPv1 A t l a n t i c O c e a n ´ 0 250 500 Km Lambert. Available at:http://sedac.ciesin.columbia.edu/gpw/ Democratic Republic of Congo Settlement Points

Columbia University

158

Scattering Solar Thermal Concentrators  

Broader source: Energy.gov (indexed) [DOE]

is a rendering of a scattering solar concentrator. Light collected by a cylindrical Fresnel lens is focused within a curved glass "guide" sheet, where it is redirected into...

159

PowerPoint Presentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

measurements in the Arctic using lidar and radar data measurements in the Arctic using lidar and radar data Ed Eloranta University of Wis-Madison http://lidar.ssec.wisc.edu Lidar-Radar Measurement of Effective Diameter Radar scattering cross section ~ ~ ρ ~ D 6 Lidar scattering cross section ~ ~ D 2 D eff_prime ~ ( ( ) 4 Notice that this differs for the usual definition: D eff = Photos by Kenneth Libbrecht Problem: Ice crystals are not spherical Hex columns Spheroid model to represent measureable properties of a snowflake Top view Side view Radar backscatter ~ particle concentration Lidar extinction ~ particle concentration

160

A Reliability Assessment Paradigm for Automated Video Tracking Systems Chung-Hao Chen, 2  

E-Print Network [OSTI]

concentrate on defining separate metrics over a wide range of conditions and generating standard benchmarking such as changing weather conditions, changing number of objects to be tracked, changing illuminations, etc. Thus on comparisons with ground truth can be further classified according to the type of metrics they use [7, 8, 9

Abidi, Mongi A.

Note: This page contains sample records for the topic "tracking concentrator pointed" 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

Fission-track analysis of detrital zircon and J. I. Garver2  

E-Print Network [OSTI]

Geology Department Olin Building, Union College Schenectady, NY, 12308-3107, USA email: garverj with various isotopic methods having reasonable high concentrations of uranium and thorium (Fig. 1). Techniques depends on individual uranium content and cooling history of a zircon grain. Fission tracks in zircon have

Paris-Sud XI, Université de

162

EC PVSEC, Glasgow, May 2000 EFFICIENT 20-50 SUN CONCENTRATOR CELLS  

E-Print Network [OSTI]

for Sustainable Energy Systems Australian National University, 0200, Australia andrew.blakers@anu.edu.au ABSTRACT concentration system. It comprises two-axis sun-tracking parabolic glass mirrors and a receiver with solar cells. INTRODUCTION Concentrator systems have a number of important advantages over conventional PV systems, the main

163

PowerPoint Presentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Coupling Between Oceanic Upwelling and Cloud Coupling Between Oceanic Upwelling and Cloud Coupling Between Oceanic Upwelling and Cloud - - Aerosol Properties Aerosol Properties at the AMF Point Reyes Site at the AMF Point Reyes Site Maureen Dunn , Mike Jensen , Pavlos Kollias , Mark Miller , Peter Daum Mary Jane Bartholomew , David Turner , Elisabeth Andrews and Anne Jefferson Introduction Ground based observations from the MASRAD, Pt. Reyes AMF July 1-Sept 15, 2005 indicate a relationship between coastal marine stratus cloud properties, boundary layer cloud condensation nuclei and the upwelling of cool oceanic waters measured at an offshore NOAA buoy. Cloud Drizzle to CCN Atmosphere to Cloud Upwelling SST to Atmosphere Conclusion Coastal marine stratus clouds increase in thickness as the underlying sea surface

164

EAMidnightPointMahogany  

Broader source: Energy.gov (indexed) [DOE]

Assessment Assessment Midnight Point and Mahogany Geothermal Exploration Projects, Glass Buttes, Oregon April 2013 Prepared By Bureau of Land Management - Prineville and Burns Districts DOI-BLM-OR-P040-2011-0021-EA DOE/EA-1925 Environmental Assessment Midnight Point and Mahogany Geothermal Exploration Projects, Glass Buttes, Oregon April 2013 Lead Agency United States Department of the Interior Bureau of Land Management Prineville District 3050 N.E. 3rd Street, Prineville, OR 97754 Tel: 541 416 6700 Burns District 28910 Hwy 20 West, Hines, OR 97738 Tel: 541 573 4400 Cooperating Agency United States Department of Energy Golden Field Office Golden, Colorado 80401 Tel: 720-356-1563 Fax: 720-356-1560 April 2013 Environmental Assessment Table of Contents 1

165

PowerPoint Presentation  

Broader source: Energy.gov (indexed) [DOE]

Commercialization of the SuperOPF Commercialization of the SuperOPF Framework: Phase III (Theme: Co- optimization Stochastic SuperOPF- renewables) Performers: PSERC: Hsiao-Dong Chiang - LEAD Cornell University: Ray Zimmerman Bigwood Systems, Inc.: Patrick Causgrove, Bin Wang Phase I: 1.(support industrial model) A commercial-grade core SuperOPF software supporting various industrial-grade power system models such as (i) CIM-compliance; and (ii) PSS/E data format 2. A multi-stage OPF solver with adaptive homotopy-based Interior Point Method for large- scale power systems (PJM: 14,000-bus data) Bigwood Systems Inc., 2013 3 Results: Efficiency and Robustness (Analytical Jacobian matrices) Loading Conditions One-Staged Interior Point Method Multi-Staged Scheme 1 Succeeded Succeeded

166

Energy-Efficient Computing for Wildlife Tracking  

E-Print Network [OSTI]

Energy-Efficient Computing for Wildlife Tracking: Design Tradeoffs and Early Experiences with ZebraNet Philo Juang Hidekazu Oki Yong Wang Margaret Martonosi Li-Shiuan Peh Dan Rubenstein Dept. of Electrical Princeton University ZebraNet Project VET TES EN NOV TAM TVM Current Tracking Technology Most common: VHF

Singh, Jaswinder Pal

167

Rotorcraft Trajectory Tracking by Supervised NLI Control  

E-Print Network [OSTI]

for a four rotor aircraft with fixed pitch blades, or rotorcraft, are considered. One important limitation tracking by a four rotor aircraft is considered. After introducing the flight dynamics equations for the four rotor aircraft, a trajectory tracking control structure based on a two layer non linear inverse

Boyer, Edmond

168

Position and orientation tracking system  

DOE Patents [OSTI]

A position and orientation tracking system presents a laser scanning apparatus having two measurement pods, a control station, and a detector array. The measurement pods can be mounted in the dome of a radioactive waste storage silo. Each measurement pod includes dual orthogonal laser scanner subsystems. The first laser scanner subsystem is oriented to emit a first line laser in the pan direction. The second laser scanner is oriented to emit a second line laser in the tilt direction. Both emitted line lasers scan planes across the radioactive waste surface to encounter the detector array mounted on a target robotic vehicle. The angles of incidence of the planes with the detector array are recorded by the control station. Combining measurements describing each of the four planes provides data for a closed form solution of the algebraic transform describing the position and orientation of the target robotic vehicle. 14 figs.

Burks, B.L.; DePiero, F.W.; Armstrong, G.A.; Jansen, J.F.; Muller, R.C.; Gee, T.F.

1998-05-05T23:59:59.000Z

169

Position and orientation tracking system  

DOE Patents [OSTI]

A position and orientation tracking system presents a laser scanning appaus having two measurement pods, a control station, and a detector array. The measurement pods can be mounted in the dome of a radioactive waste storage silo. Each measurement pod includes dual orthogonal laser scanner subsystems. The first laser scanner subsystem is oriented to emit a first line laser in the pan direction. The second laser scanner is oriented to emit a second line laser in the tilt direction. Both emitted line lasers scan planes across the radioactive waste surface to encounter the detector array mounted on a target robotic vehicle. The angles of incidence of the planes with the detector array are recorded by the control station. Combining measurements describing each of the four planes provides data for a closed form solution of the algebraic transform describing the position and orientation of the target robotic vehicle.

Burks, Barry L. (Oak Ridge, TN); DePiero, Fred W. (Knoxville, TN); Armstrong, Gary A. (Oak Ridge, TN); Jansen, John F. (Knoxville, TN); Muller, Richard C. (Oak Ridge, TN); Gee, Timothy F. (Riceville, TN)

1998-01-01T23:59:59.000Z

170

Critical speed of railway tracks. detailed and simplified approaches  

Science Journals Connector (OSTI)

Abstract The dynamic amplification effects of the response due to a moving load on the surface of an elastic solid has been object of research for more than a century. However, if in the beginning of the last century the problem had only theoretical interest, this is no longer true. Indeed, the recent advancements in the rolling stock, which can now reach speeds higher than 500 km/h, brought this kind of problems to the engineering practice, mainly to high speed railway engineering. The present paper approaches this problem focusing on railway engineering. The departing point is the theoretical formulation of the critical speed problem of a moving load on the surface of an elastic solid. From the usage of 2.5D detailed models it was possible to understand the influence of the embankment and track properties on the critical speed. However, to avoid complex numerical models, which are very demanding from the computational point of view, a simplified approach is proposed for the computation of the critical speed of track-embankment-ground systems. The results of the simplified approach are compared to those achieved by detailed methods, also presented in this paper, and the proposed expedite methodology is found to be very accurate.

Pedro Alves Costa; Aires Colaço; Rui Calçada; António Silva Cardoso

2014-01-01T23:59:59.000Z

171

PowerPoint Presentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Aircraft Workshop Aircraft Workshop 10/14/2008 1 Instrumentation for Unmanned Aircraft Systems (UAS) Fred J. Brechtel, Andy Corless, Chris Marquis, Fred P. Brechtel, Sandeep Rai, Brechtel Mfg. Inc. (fredj@brechtel.com) Tim Bates & Trish Quinn, Atmospheric Chemistry Group, NOAA PMEL Christian Meinig & Scott Stalin, Engineering Dev. Division, NOAA PMEL Intro & Motivation for the development Introduction to each UAS instrument Other aircraft-deployable systems Power plant plume case study OUTLINE: SBIR Aircraft Workshop 10/14/2008 2 Ambient Aerosols 101: Part 1 Particle Number Concentration Particle Number Concentration 1/cm 3 Particle Diameter (nm) 1 10 100 1000 10 7 10 5 10 3 10 1 10000 Sulfuric Acid Organic Nitrate Carbonaceous Sulfate Sea Salt Mineral Wet Dp Dry Dp Aircraft Workshop 10/14/2008

172

Tracking formulas and strategies for a receiver oriented dual-axis tracking toroidal heliostat  

SciTech Connect (OSTI)

A 4 m x 4 m toroidal heliostat with receiver oriented dual-axis tracking, also called spinning-elevation tracking, was developed as an auxiliary heat source for a hydrogen production system. A series of spinning-elevation tracking formulas have been derived for this heliostat. This included basic tracking formulas, a formula for the elevation angle for heliostat with a mirror-pivot offset, and a more general formula for the biased elevation angle. This paper presents the new tracking formulas in detail and analyzes the accuracy of applying a simplifying approximation. The numerical results show these receiver oriented dual-axis tracking formula approximations are accurate to within 2.5 x 10{sup -6} m in image plane. Some practical tracking strategies are discussed briefly. Solar images from the toroidal heliostat at selected times are also presented. (author)

Guo, Minghuan; Wang, Zhifeng; Liang, Wenfeng; Zhang, Xiliang; Zang, Chuncheng [Key Laboratory of Solar Thermal Energy and Photovoltaic System of Chinese Academy of Sciences, Institute of Electrical Engineering, Beijing 100190 (China); Lu, Zhenwu; Wei, Xiudong [Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences (CAS), Jilin 130033 (China)

2010-06-15T23:59:59.000Z

173

ATLAS Tracking Event Data Model -- 12.0.0  

E-Print Network [OSTI]

viewcvs-all.cgi/offline/? cvsroot=atlas : Tracking/TrkEvent/all.cgi/ offline/? cvsroot=atlas : Tracking/TrkEvent/all.cgi/offline/? cvsroot=atlas : Tracking/TrkDetDescr/

Akesson, F.; ATLAS

2009-01-01T23:59:59.000Z

174

Optimization of Stationary Concentrators  

Science Journals Connector (OSTI)

In this chapter, the main characteristics of stationary nonimaging solar concentrators are optimized in respect of the latitude of their installation and the direct fraction of solar radiation incident on the ...

Dr. Ralf Leutz; Dr. Akio Suzuki

2001-01-01T23:59:59.000Z

175

Concentrator silicon cell research  

SciTech Connect (OSTI)

This project continued the developments of high-efficiency silicon concentrator solar cells with the goal of achieving a cell efficiency in the 26 to 27 percent range at a concentration level of 150 suns of greater. The target efficiency was achieved with the new PERL (passivated emitter, rear locally diffused) cell structure, but only at low concentration levels around 20 suns. The PERL structure combines oxide passivation of both top and rear surfaces of the cells with small area contact to heavily doped regions on the top and rear surfaces. Efficiency in the 22 to 23 percent range was also demonstrated for large-area concentrator cells fabricated with the buried contact solar cell processing sequence, either when combined with prismatic covers or with other innovative approaches to reduce top contact shadowing. 19 refs.

Green, M.A.; Wenham, S.R.; Zhang, F.; Zhao, J.; Wang, A. [New South Wales Univ., Kensington (Australia). Solar Photovoltaic Lab.

1992-04-01T23:59:59.000Z

176

Concentrated Thermoelectric Power  

Broader source: Energy.gov (indexed) [DOE]

and night using no moving parts at both the utility and distributed scale. Concentrating Solar Power MASSACHUSETTS INSTITUTE OF TECHNOLOGY PROGRAM: SunShot CSP R&D 2012 TOPIC:...

177

Joined concentric tubes  

DOE Patents [OSTI]

Tubular objects having two or more concentric layers that have different properties are joined to one another during their manufacture primarily by compressive and friction forces generated by shrinkage during sintering and possibly mechanical interlocking. It is not necessary for the concentric tubes to display adhesive-, chemical- or sinter-bonding to each other in order to achieve a strong bond. This facilitates joining of dissimilar materials, such as ceramics and metals.

DeJonghe, Lutgard; Jacobson, Craig; Tucker, Michael; Visco, Steven

2013-01-01T23:59:59.000Z

178

PowerPoint Presentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Conard Stair Conard Stair Enforcement Program Manager B&W Y-12 March 2012 Enforcement Coordination Working Group Spring 2012 Meeting Y-12 Approach to Enforcement Y-12 Enforcement Program Office (EPO) * Integrated program with a single point of contact for enforcement activities for radiological protection, worker safety and health, and classified information security * Proceduralized and automated process that provides consistent documentation of compliance determinations and reporting * Uses a decentralized approach with Line Management Price- Anderson Officers (LMPOs) assisted by a cadre of subject matter experts to perform screening determinations * Provides policy, direction, guidance, and independent oversight * Serves as chief technical advisor to senior leadership team on

179

ORO Verification of Employment Tracking System(VETS) PIA, Oak...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Verification of Employment Tracking System(VETS) PIA, Oak ridge Operations Office ORO Verification of Employment Tracking System(VETS) PIA, Oak ridge Operations Office ORO...

180

ORO Office Safeguards and Security Clearance Tracking System...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Office Safeguards and Security Clearance Tracking System and Visitor Control System PIA, Oak Ridge Operations Office ORO Office Safeguards and Security Clearance Tracking System...

Note: This page contains sample records for the topic "tracking concentrator pointed" 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

Employee Concerns Tracking System, PIA, Bechtel Jacobs Company...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

LLC Employee Concerns Tracking System, PIA, Bechtel Jacobs Company, LLC Employee Concerns Tracking System, PIA, Bechtel Jacobs Company, LLC More Documents & Publications Electronic...

182

Version Tracking Document for DOE Challenge Homes, National Program...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Version Tracking Document for DOE Challenge Homes, National Program Requirements (Rev. 03) Version Tracking Document for DOE Challenge Homes, National Program Requirements (Rev....

183

SharePoint 2010 Overview  

Science Journals Connector (OSTI)

Hello and welcome to SharePoint 2010. Microsoft SharePoint has journeyed a long way since the early days of 2001 and SharePoint Portal Server 2003. SharePoint administrators and developers jumped for joy in 20...

Robert Garrett

2011-01-01T23:59:59.000Z

184

Argonne PowerPoint Presentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Computing: Progress report Computing: Progress report P.N. Ostroumov, B. Mustapha, J. Xu October 24, 2007 2 Main tasks TRACK updates - The TRACKv37 version is in web-site now http://www.phy.anl.gov/atlas/TRACK/Trackv37/ - H-minus stripping (residual gas, static & RF magnetic fields, black- body radiation) is fully incorporated as a Monte-Carlo process - Trajectories of secondary particles produced by an internal target inside a solenoid - New version TRACKv38 includes DTLs,CCLs P-TRACK: is being updated to version v38, is not yet available on web- site Parallel electromagnetic solvers: collaboration with John DeFord (STAR- ANALYST) - Application for STTR Collaboration attempt with SLAC computer simulation group was not successful 3 Objectives of the STTR The development of efficient parallel implementations of thermal

185

Microsoft PowerPoint - Proceedings Cover Sheets  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Optimum pressure and concentration of CO Optimum pressure and concentration of CO 2 in flue gases for CO 2 capture by antisublimation May 8-11, 2006 * Hilton Alexandria Mark Center * Alexandria, Virginia D. Clodic, M. Younes, Alain Bill Outline * Anti-sublimation CO 2 capture system * Flue gases CO 2 concentration sensitivity analysis * Flue gases pressure sensitivity analysis * High Pressure Flue Gases * Conclusions 2 Anti-sublimation CO 2 capture system * CO 2 capture system based on the CO 2 physical properties * CO 2 triple point is at -56.5 C, 520 kPa, below these temperature and pressure CO 2 is either in gas or solid phase. No liquid. * The CO 2 solid phase requires a defrosting process at a pressure higher then 520 kPa thus a swing process is necessary for continuous operation. 3 A B C D E A' CO 2 capture system on the T-s diagram

186

Class 3 Tracking and Monitoring System Report  

SciTech Connect (OSTI)

The objective of Class 3 tracking system are to assist DOE in tracking and performance and progress of these projects and to capture the technical and financial information collected during the projects' monitoring phase. The captured information was used by DOE project managers and BDM-Oklahoma staff for project monitoring and evaluation, and technology transfer activities. The proposed tracking system used the Class Evaluation Executive Report (CLEVER), a relation database for storing and disseminating class project data; GeoGraphix, a geological and technical analysis and mapping software system; the Tertiary Oil Recovery Information System (TORIS) database; and MS-Project, a project management software system.

Safely, Eugene; Salamy, S. Phillip

1999-11-29T23:59:59.000Z

187

PowerPoint Presentation  

Broader source: Energy.gov (indexed) [DOE]

Customer Acceptance of Smart Grid Customer Acceptance of Smart Grid DOE Energy Advisory Committee Meeting June 6, 2013 Judith Schwartz, To the Point + INNOVATORS EARLY ADOPTERS EARLY MAJORITY LATE MAJORITY LATE ADOPTERS Indifferents Tech Enthusiasts Green Altruists Comfort Lovers Cost Conscious Doubters Green buildings Simple feedback interface Price incentives Seamless automation Who Are Our Customers? + Why Will They Care About SG? 1. Information, incentives, and automation to easily reduce or defer electricity use 2. Integrate clean generation and transportation 3. Reduce, pinpoint, and restore outages + Fly Under the Radar Active Engagement Slow Build Back end deployment first in sequence AMI rollout in process or pilots are imminent Practice incremental modernization efforts High % of "indifferent"

188

PowerPoint Presentation  

Broader source: Energy.gov (indexed) [DOE]

John Nangle, National Renewable Energy Laboratory (NREL) John Nangle, National Renewable Energy Laboratory (NREL) Tribal Leader Forum, Phoenix, AZ - May 30 - 31, 2013 State Incentives and Project Impacts Main Points - Market Context * State Renewable Portfolio Standards (RPS) - What are they? - How can they help your project? - Potential gap means more market demand for RE projects Starting a Renewable Energy Project * What renewable resources exist? * What sites with resources do you own? * To whom will you sell the electricity? * How will federal and state incentives or policies impact your project? * Access to transmission * Other policies - Interconnection standards - Environmental standards Renewable Portfolio Standard (RPS) * A requirement set by a state for utilities to generate x% of electricity from renewables by a specific date

189

Repelling Point Bosons  

SciTech Connect (OSTI)

There is a body of conventional wisdom that holds that a solvable quantum problem, by virtue of its solvability, is pathological and thus irrelevant. It has been difficult to refute this view owing to the paucity of theoretical constructs and experimental results. Recent experiments involving equivalent ions trapped in a spatial conformation of extreme anisotropic confinement (longitudinal extension tens, hundreds or even thousands of times transverse extension) have modified the view of relevancy, and it is now possible to consider systems previously thought pathological, in particular point Bosons that repel in one dimension. It has been difficult for the experimentalists to utilize existing theory, mainly due to long-standing theoretical misunderstanding of the relevance of the permutation group, in particular the non-commutativity of translations (periodicity) and transpositions (permutation). This misunderstanding is most easily rectified in the case of repelling Bosons.

McGuire, J. B. [Department of Physics, Florida Atlantic Univ., Boca Raton, FL (United States)

2011-12-01T23:59:59.000Z

190

ARM - Measurement - Aerosol concentration  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

concentration concentration ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Aerosol concentration A measure of the amount of aerosol particles (e.g. number, mass, volume) per unit volume of air. Categories Aerosols Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments AOS : Aerosol Observing System CSPHOT : Cimel Sunphotometer CPC : Condensation Particle Counter IAP : In-situ Aerosol Profiles (Cessna Aerosol Flights) TDMA : Tandem Differential Mobility Analyzer

191

END POINTS MANAGEMENT End Points Management The Need for End Point Specifications  

Broader source: Energy.gov (indexed) [DOE]

MANAGEMENT MANAGEMENT End Points Management The Need for End Point Specifications The Need for a Method to Derive End Points Guiding Principles for Specifying End Points Tailored Approach Headquarters, Field Office, and Contractor Roles End Points Approvals Contractor Organization Functions for End Points Implementation Training and Walkdown Guidance for the Facility Engineers The Need for End Point Specifications The policy of the EM is that a formal project management approach be used for the planning, managing, and conducting of its projects. A fundamental premise of project management for facility deactivation is answering the question: How do you know when the project is complete? Just as the design specifications are essential to a

192

PowerPoint Presentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Testing Objectives Testing Objectives * Qualitatively demonstrate leaching and ultrafiltration processes, equipment design and process control strategies * Obtain data to improve process model projections for leaching and ultrafiltration - Develop scaling factors to form link between laboratory-scale and engineering-scale test results Process Flowsheets * Baseline: caustic leaching in UF feed preparation vessels - Caustic added directly to as-received feed (3-8 wt% solids) * Alternative: caustic leaching in UF feed vessel - Caustic added after initial solids concentration to 20 wt% * All other process steps conducted in the UF feed vessels. PEP Flow Diagram Scaling Considerations * 1/4.5-scale facility: linear dimensions * PJM mixing - Newtonian slurry: power/volume - Non-newtonian: plant velocity

193

PowerPoint Presentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Radar Simulator: A Tool for comparison of modeled and observed clouds Radar Simulator: A Tool for comparison of modeled and observed clouds and precipitation at the ARM Climate Research Facilities 3. ARM Radar Simulator: Purpose Alleviate uncertainties related to the retrieval process, Because the forward model can be described much more accurately than the inversion process, which always involves certain assumptions. Take full advantage of the information content of multi- parametric Doppler radar observations rather than a few retrieved parameters such as cloud boundaries and LWP. Use as engineering/feasibility tool for the development of future ARM radar observing systems. 6. ARM Radar Simulator: Output Profiling MMCR/WACR Reflectivity Z size, concentration Mean Doppler Velocity V size Spectrum Width σ distribution width

194

Implementation of DC-DC converter with maximum power point tracking control for thermoelectric generator applications.  

E-Print Network [OSTI]

?? A heavy duty vehicle looses approximately 30-40 % of the energy in the fuel as waste heat through the exhaust system. Recovering this waste… (more)

Jahanbakhsh, David

2012-01-01T23:59:59.000Z

195

An X-point ergodic divertor  

SciTech Connect (OSTI)

A new ergodic divertor is proposed. It utilizes a system of external (n = 3) coils arranged to generate overlapping magnetic islands in the edge region of a diverted tokamak and connect the randomized field lines to the external (cold) divertor plate. The novel feature in the configuration is the placement of the external coils close to the X-point. A realistic design of the external coil set is studied by using the field line tracing method for a low aspect ratio (A {approx equal} 3) tokamak. Two types of effects are observed. First, by placing the coils close to the X-point, where the poloidal magnetic field is weak and the rational surfaces are closely packed only a moderate amount of current in the external coils is needed to ergodize the edge region. This ergodized edge enhances the edge transport in the X-point region and leads to the potential of edge profile control and the avoidance of edge localized modes (ELMs). Furthermore, the trajectories of the field lines close to the X-point are modified by the external coil set, causing the hit points on the external divertor plates to be randomized and spread out in the major radius direction. A time-dependent modulation of the currents in the external (n = 3) coils can potentially spread the heat flux more uniformly on the divertor plate avoiding high concentration of the heat flux. 10 refs., 9 figs.

Chu, M.S.; Jensen, T.H.; La Haye, R.J.; Taylor, T.S.; Evans, T.E.

1991-10-01T23:59:59.000Z

196

DataTrends Water Use Tracking  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Use Tracking Use Tracking Organizations across the country are measuring and tracking the water use of over 50,000 buildings using the U.S. Environmental Protection Agency's (EPA) ENERGY STAR Portfolio Manager. These buildings represent close to 20% of all buildings in Portfolio Manager. EPA has prepared the DataTrends series to examine trends in energy and water consumption in Portfolio Manager. This document presents the general trends seen in the water data. To learn more, visit www.energystar.gov/DataTrends. Many different types of organizations are tracking water consumption in a wide variety of buildings located in all 50 states. The most common types of buildings with water data are

197

Driving Efficiencies Track | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Driving Efficiencies Track Driving Efficiencies Track Driving Efficiencies Track Driving Efficiencies Track Tuesday April 17, 2012 From E-Mail to "The Stream" by Don Burke Taking Records Inventory Into the 21st Century by Lorie A. Robb Engineering and Operations Control: Embrace the Culture by Cheryl Bolen IT Project Management Framework by Denise Hill Wednesday April 18, 2012 Records Warehouse Operations and Records Storage for External Customers by Karen Hatch Preservation of Long-Term Temporary Records by Jeanie Gueretta Mobile Initiatives Effecting Change at Hanford by Don Stewart DOE's CIO's EWA by Sarah Gamage, Don Schade and Alan Andon Green IT 2012: Sustainable Electronics by Edwin Luevanos and Jeff Eagan Thursday April 19, 2012 Document Management and Control System by Melissa Ruth

198

Turkey Track Wind Farm | Open Energy Information  

Open Energy Info (EERE)

Track Wind Farm Track Wind Farm Jump to: navigation, search Name Turkey Track Wind Farm Facility Turkey Track Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner CanTex Energy Developer Wind Tex Energy LP Location Nolan TX Coordinates 32.23182529°, -100.043478° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":32.23182529,"lon":-100.043478,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

199

Derr Track Storage Bldg Sigma Alpha  

E-Print Network [OSTI]

!( Derr Track Storage Bldg Solar House Entomology Lab Bldg Sigma Alpha Epsilon 11 MEAS Ocean Lab & Storage Avent Ferry Complex Building Sigma Phi Epsilon 7 Pi Kappa Alpha 10 Sigma Alpha Mu 4 Tau Kappa

Reeves, Douglas S.

200

Electronic Document Tracking System (EDTS): A Prototype  

Science Journals Connector (OSTI)

With rapidly-changing technology and increasing emphasis in managing information properly, Electronic Document Tracking System (EDTS) has been developed as a solution system to improve the efficiency of retrie...

Rochin Demong; Lailatul Faizah Abu Hassan…

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "tracking concentrator pointed" 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

On Cyclonic Tracks over the Eastern Mediterranean  

Science Journals Connector (OSTI)

In this study, an updated and extended climatology of cyclonic tracks affecting the eastern Mediterranean region is presented, in order to better understand the Mediterranean climate and its changes. This climatology includes intermonthly ...

Helena A. Flocas; Ian Simmonds; John Kouroutzoglou; Kevin Keay; Maria Hatzaki; Vicky Bricolas; Demosthenes Asimakopoulos

2010-10-01T23:59:59.000Z

202

HCI gesture tracking using wearable passive tags  

E-Print Network [OSTI]

In this thesis. a wearable system is developed to track hand gestures with passive RFID sensor tags. This system was composed of an ultra-high frequency reader and small, passive, finger-worn tags powered by scavenged RFID ...

Bainbridge, Rachel M

2010-01-01T23:59:59.000Z

203

Research on Tracking Precision of the Heliostat  

Science Journals Connector (OSTI)

The tracking precision and manufacture cost of the heliostats is obviously crucial to the system efficiency ... account of the inevitable error occurred during the heliostat’s installation, a mathematic model was...

Wenfeng Liang; Zhifeng Wang

2009-01-01T23:59:59.000Z

204

The Marketing Concentration  

E-Print Network [OSTI]

The Marketing Concentration The Manning School of Business www.uml.edu/management Who We Are, management, management information systems, marketing and supply chain and operations management we provide education possible." -- Andy Hwang Marketing Major "I chose UMass Lowell because of its high level

Massachusetts at Lowell, University of

205

St Andrews Recycling Points Recycling Points are situated locally to  

E-Print Network [OSTI]

St Andrews Recycling Points Recycling Points are situated locally to allow you to recycle the following materials: To find your nearest Recycling Point please visit www.fifedirect.org.uk/wasteaware or call the Recycling Helpline on 08451 55 00 22. R&A GOLF CLUB OLD COURSE HOTEL UNIVERSITY NORTH HAUGH

St Andrews, University of

206

Tritium inventory tracking and management  

SciTech Connect (OSTI)

This investigation has identified a number of useful applications of the analysis of the tracking and management of the tritium inventory in the various subsystems and components in a DT fusion reactor system. Due to the large amounts of tritium that will need to be circulated within such a plant, and the hazards of dealing with the tritium an electricity generating utility may not wish to also be in the tritium production and supply business on a full time basis. Possible scenarios for system operation have been presented, including options with zero net increase in tritium inventory, annual maintenance and blanket replacement, rapid increases in tritium creation for the production of additional tritium supplies for new plant startup, and failures in certain system components. It has been found that the value of the tritium breeding ratio required to stabilize the storage inventory depends strongly on the value and nature of other system characteristics. The real operation of a DT fusion reactor power plant will include maintenance and blanket replacement shutdowns which will affect the operation of the tritium handling system. It was also found that only modest increases in the tritium breeding ratio are needed in order to produce sufficient extra tritium for the startup of new reactors in less than two years. Thus, the continuous operation of a reactor system with a high tritium breeding ratio in order to have sufficient supplies for other plants is not necessary. Lastly, the overall operation and reliability of the power plant is greatly affected by failures in the fuel cleanup and plasma exhaust systems.

Eichenberg, T.W.; Klein, A.C.

1990-09-10T23:59:59.000Z

207

On-Line Selection of Discriminative Tracking Features  

E-Print Network [OSTI]

in lighting conditions. Tracking success/failure is highly correlated with our ability to distinguish object

Collins, Robert T.

208

Evaluation of fine-granular GPS tracking on smartphones  

Science Journals Connector (OSTI)

Smartphones with their GPS capabilities allow tracking in numerous scenarios at low costs. Whereas most scenarios need only coarse tracking, real-time tracking of competitors in sport events require fine-granular localization with high refresh frequencies. ... Keywords: GPS performance, evaluation, mobile localization and tracking, smartphone application for GIS

Basil Hess; Armin Zamani Farahani; Fabian Tschirschnitz; Felix von Reischach

2012-11-01T23:59:59.000Z

209

Etendue-matched two-stage concentrators with multiple receivers  

SciTech Connect (OSTI)

A possible way to concentrate sun light is by using a Fresnel reflector: a large number of small mirrors (called heliostats) that mimic the behavior of a large concentrator, replacing it. These heliostats can move to track the sun, keeping its light concentrated onto the receiver. Fresnel concentrators, however, may have important losses. If the heliostats are spaced from each other, some light will miss them and be lost. If the heliostats are close to each other, they will block part of each other's reflected light, also producing losses. One possible way to minimize these losses is to intersect two focusing Fresnel concentrators forming a Compact Linear Fresnel Reflector - CLFR. Although improving on a simple focusing Fresnel concentrator, these optics are still not optimal. Here new geometries for Fresnel reflectors are explored, minimizing their losses and increasing their concentration. This is achieved by changing the overall shape of the primary, making it a wave-shaped trough surface and/or by allowing for a variable size and shape of the heliostats as a function of the position in the heliostat field. These new Fresnel concentrators may also be combined with secondaries significantly improving their total concentration, which now approaches the theoretical maximum. (author)

Chaves, Julio [Light Prescriptions Innovators, Edif. CeDInt, Campus Montegancedo UPM, 28223 Pozuelo de Alarcon, Madrid (Spain); Collares-Pereira, Manuel [Physics Department, IST, Technical University of Lisbon (Portugal)

2010-02-15T23:59:59.000Z

210

PowerPoint Presentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Indirect Effect on Rainfall Indirect Effect on Rainfall at SGP Site Feng Niu Advisor: Zhangqing Li 03/30/2009 Rainfall Frequency y = - 0.0012x + 0.0134 R 2 = 0.9336 y = 0.0335x + 0.2043 R 2 = 0.6529 y = 0.0009x + 0.0536 R 2 = 0.0021 0.00% 5.00% 10.00% 15.00% 20.00% 25.00% 30.00% 35.00% 40.00% 45.00% 0- 1000 1000- 2000 2000- 3000 3000- 4000 4000- 5000 5000- 6000 Aero so l Number Co nc entratio n (/ c m3) Ra inf a ll Freq uenc y 0.00% 0.20% 0.40% 0.60% 0.80% 1.00% 1.20% 1.40% LWP: >0.8mm LWP:0.4- 0.8mm LWP:0- 0.4mm Linear (LWP:0- 0.4mm) Linear (LWP: >0.8mm) Linear (LWP:0.4- 0.8mm) Main Factors Affecting Rainfall Rainfall frequency Water vapor Atm stability Aerosols 10 11 12 13 14 15 16 17 18 19 0-1000 1000- 2000 2000- 3000 3000- 4000 4000- 5000 5000- 6000 Aerosol Number Concentration (per cm^3) Surface temperature (Degree Celsius) LWP:>0.8mm LWP:0.4-0.8mm LWP:0.0-0.4mm

211

Group Response System Turning Point  

E-Print Network [OSTI]

. · But more often I do use it within a slide show. Somewhat more difficult to manage. But some great uses-Add-in for Power Point. · Some "Clicking" practice. #12;Make A Slide-Add to this file. · Esc, click on TurningPoint add-in · Pick Insert Slide in Turning Point bar and insert a Turning Point slide after this slide

212

Derived Concentration Technical Standard  

Broader source: Energy.gov (indexed) [DOE]

196-2011 196-2011 April 2011 DOE STANDARD DERIVED CONCENTRATION TECHNICAL STANDARD U.S. Department of Energy AREA ENVR Washington, D.C. 20585 Not Measurement Sensitive This document is available on the Department of Energy Technical Standards Program Web Site at http://www.hss.doe.gov/nuclearsafety/ns/techstds/standard/standard.html DOE-STD-1196-2011 ACKNOWLEDGEMENTS This Derived Concentration Technical Standard was a collaborative effort sponsored by the DOE Office of Environmental Policy and Assistance, with support from Department subject matter experts (SMEs) in the field of radiation protection. This standard, which complements DOE Order (O) 458.1, Radiation Protection of the Public and the Environment, was developed taking

213

T839 fiber tracking transporter at New Muon Lab  

SciTech Connect (OSTI)

A darkbox and its transporter have been designed for T839 fiber tracking tests. The darkbox is 3.35 m {times} 0.76 m {times} 0.25 m (1{center_dot}w{center_dot}h) and contains a scintillating fiber ribbon suspension system and mechanical hardware to support the readout electronics. The transporter provides 3.0 m of horizontal motion transverse to the beam for linear scans of fiber characteristics. In addition, 70 degrees of rotation about a vertical axis is provided to simulate tracking of particles emanating from a collision point at lab angles in the range 0{degrees}--70{degrees}. The transporter, which is located inside a radiation area, is remotely controlled to permit scanning the fiber array through the region defined by four small stationary triggering scintillators without disabling beam. The transporter rails extend 20 feet to the west beyond a gate in the radiation enclosure fencing. This provides a staging area to work on the apparatus, while the beam is on. 4 figs.

Krider, J.

1991-10-23T23:59:59.000Z

214

T839 fiber tracking transporter at New Muon Lab  

SciTech Connect (OSTI)

A darkbox and its transporter have been designed for T839 fiber tracking tests. The darkbox is 3.35 m {times} 0.76 m {times} 0.25 m (1{center dot}w{center dot}h) and contains a scintillating fiber ribbon suspension system and mechanical hardware to support the readout electronics. The transporter provides 3.0 m of horizontal motion transverse to the beam for linear scans of fiber characteristics. In addition, 70 degrees of rotation about a vertical axis is provided to simulate tracking of particles emanating from a collision point at lab angles in the range 0{degrees}--70{degrees}. The transporter, which is located inside a radiation area, is remotely controlled to permit scanning the fiber array through the region defined by four small stationary triggering scintillators without disabling beam. The transporter rails extend 20 feet to the west beyond a gate in the radiation enclosure fencing. This provides a staging area to work on the apparatus, while the beam is on. 4 figs.

Krider, J.

1991-10-23T23:59:59.000Z

215

Concentrating Energy by Measurement  

E-Print Network [OSTI]

In a recent article [A. Kurcz et al., Phys. Rev. A 81, 063821 (2010)] we predicted an energy concentrating mechanism in composite quantum systems. Its result is a non-zero stationary state photon emission rate even in the absence of external driving. Here we discuss the possible origin of the predicted effect. We attribute it to the presence of a non-trivial interaction between different system components and to repeated environment-induced photon measurements.

Almut Beige; Antonio Capolupo; Andreas Kurcz; Emilio Del Giudice; Giuseppe Vitiello

2010-12-29T23:59:59.000Z

216

Optimal tracking and robust power control of the DFIG wind turbine  

Science Journals Connector (OSTI)

In the present paper, an optimal operation of a grid-connected variable speed wind turbine equipped with a Doubly Fed Induction Generator (DFIG) is presented. The proposed cascaded nonlinear controller is designed to perform two main objectives. In the outer loop, a maximum power point tracking (MPPT) algorithm based on fuzzy logic theory is designed to permanently extract the optimal aerodynamic energy, whereas in the inner loop, a second order sliding mode control (2-SM) is applied to achieve smooth regulation of both stator active and reactive powers quantities. The obtained simulation results show a permanent track of the MPP point regardless of the turbine power-speed slope moreover the proposed sliding mode control strategy presents attractive features such as chattering-free, compared to the conventional first order sliding technique (1-SM).

S. Abdeddaim; A. Betka

2013-01-01T23:59:59.000Z

217

DESIGN AND IMPLEMENTATION OF A BIOMOLECULAR CIRCUIT FOR TRACKING PROTEIN CONCENTRATION  

E-Print Network [OSTI]

the levels of two double stranded DNA species through sequestration and transcriptional regulation. Synthetic the expected task. I. INTRODUCTION As biomolecular circuits in synthetic biology increase in complexity feedback regulation is a critical hurdle for the design and engineering of complex synthetic circuits

Murray, Richard M.

218

Chicago Office NEPA Tracking Number U. S. DEPARTMENT OF ENERGY  

Broader source: Energy.gov (indexed) [DOE]

SGCH F 560-ACQ SGCH F 560-ACQ (11/05) Previous editions are obsolete. Chicago Office NEPA Tracking Number U. S. DEPARTMENT OF ENERGY OFFICE OF SCIENCE -- CHICAGO OFFICE NATIONAL ENVIRONMENTAL POLICY ACT (NEPA) ENVIRONMENTAL EVALUATION NOTIFICATION FORM To be completed by "financial assistance award" organization receiving Federal funding. For assistance (including a point of contact), see "Instructions for Preparing SC-CH F-560, Environmental Evaluation Notification Form ". Solicitation/Award No. (if applicable): N/A Organization Name: New Brunswick Laboratory (NBL) Title of Proposed Project/Research: GENERIC CATEGORICAL EXCLUSION (CX) FOR THE NBL: Indoor Bench Scale Research Projects and Conventional Laboratory Operations Total DOE Funding/Total Project Funding:

219

Five Years of Tracking Heavy Ion Collisions at RHIC  

E-Print Network [OSTI]

Five years have passed since the first collisions of Au nuclei at the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory (BNL) on Long Island. With nucleon-nucleon center-of-mass energies of up to sqrt(s_NN)=200GeV RHIC provides the highest energy heavy ion collisions at any existing collider. To study the dynamics of nuclear matter at extreme temperatures and pressures hundreds of produced particles need to be tracked and identified, which provides a sizable challenge to the four experiments. This article tries to summarize these first years of RHIC operation from the detector point of view and give a glimpse at the future of the accelerator and its experiments.

A. Franz

2006-03-13T23:59:59.000Z

220

Vibration and ride comfort studies on a tracked vehicle  

Science Journals Connector (OSTI)

This paper describes a field test conducted on a military tracked vehicle. The accelerations experienced at selected locations on the vehicle for four different types of terrain were recorded and analysed in spectral and statistical modes. The first few natural frequencies of the vehicle were obtained using an in-plane N+2 degree-of-freedom linear dynamic model of the vehicle with two degrees of freedom corresponding to bounce and pitch modes of the hull and N degrees of freedom corresponding to the bounce modes of the N road wheel assemblies. The analytically obtained natural frequencies match with peaks in the experimentally obtained transfer function and acceleration power spectral density curves. From the point of view of crew comfort, acceleration levels encountered in the crew cabin have been compared with those specified in ISO 2631 standard. Ride quality assessment has also been made on the basis of absorbed power.

C. Sujatha; A.K. Goswami; J. Roopchand

2002-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "tracking concentrator pointed" 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

Low-Cost, Lightweight Solar Concentrators  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Concentrators Concentrators California Institute of Technology/Jet Propulsion Laboratory Award Number:0595-1612 | April 18, 2013 | Ganapathi * Mirror module development has been approached with the goal of being applicable to all types of CSP systems * Several heliostat design options being considered to address driving requirements: * Facets that are compliant to winds > 35 mph * Deep structures for optimizing structural efficiency * Pointing accuracy achieved with mechanism design * Simple precision components * Easy on-site assembly with pre-fab components * Structural foam properties and strengthening trades being conducted to reduce overall costs with FEM models Goal: Typical costs for a concentrator (heliostat or parabolic dish) can range between 40-50% of the total costs. To meet SunShot

222

Intelligent Biometric Group Hand Tracking (IBGHT) database for visual hand tracking research and development  

Science Journals Connector (OSTI)

With the increase of innovations in vision-based hand gesture interaction system, new techniques and algorithms are being developed by researchers. However, less attention has been paid on the scope of dismantling hand tracking problems. There is also ... Keywords: Annotated ground truth, Benchmark database, Hand detection, Hand gesture recognition, Hand tracking

Mohd. Shahrimie Asaari, Bakhtiar Affendi Rosdi, Shahrel Azmin Suandi

2014-06-01T23:59:59.000Z

223

CDC's National Environmental Public Health Tracking Network VERMONT Keeping Track, Promoting Health  

E-Print Network [OSTI]

exposures such as air pollution and drinking water contaminants. The health department began receiving monitoring data show that this county also has the most days per year of air pollution from fine particulateCS225774_O CDC's National Environmental Public Health Tracking Network VERMONT Keeping Track

224

Nondestructive 3D confocal laser imaging with deconvolution of seven whole stardust tracks with complementary XRF and quantitative analysis  

SciTech Connect (OSTI)

We present a nondestructive 3D system for analysis of whole Stardust tracks, using a combination of Laser Confocal Scanning Microscopy and synchrotron XRF. 3D deconvolution is used for optical corrections, and results of quantitative analyses of several tracks are presented. The Stardust mission to comet Wild 2 trapped many cometary and ISM particles in aerogel, leaving behind 'tracks' of melted silica aerogel on both sides of the collector. Collected particles and their tracks range in size from submicron to millimeter scale. Interstellar dust collected on the obverse of the aerogel collector is thought to have an average track length of {approx}15 {micro}m. It has been our goal to perform a total non-destructive 3D textural and XRF chemical analysis on both types of tracks. To that end, we use a combination of Laser Confocal Scanning Microscopy (LCSM) and X Ray Florescence (XRF) spectrometry. Utilized properly, the combination of 3D optical data and chemical data provides total nondestructive characterization of full tracks, prior to flattening or other destructive analysis methods. Our LCSM techniques allow imaging at 0.075 {micro}m/pixel, without the use of oil-based lenses. A full textural analysis on track No.82 is presented here as well as analysis of 6 additional tracks contained within 3 keystones (No.128, No.129 and No.140). We present a method of removing the axial distortion inherent in LCSM images, by means of a computational 3D Deconvolution algorithm, and present some preliminary experiments with computed point spread functions. The combination of 3D LCSM data and XRF data provides invaluable information, while preserving the integrity of the samples for further analysis. It is imperative that these samples, the first extraterrestrial solids returned since the Apollo era, be fully mapped nondestructively in 3D, to preserve the maximum amount of information prior to other, destructive analysis.

Greenberg, M.; Ebel, D.S. (AMNH)

2009-03-19T23:59:59.000Z

225

PowerPoint Posters 1 PowerPointPowerPoint Creating PostersCreating Posters  

E-Print Network [OSTI]

PowerPoint Posters 1 PowerPointPowerPoint ­­ Creating PostersCreating Posters Course Description: This course is designed to assist the you in creating eye-catching effective posters for presentation of research findings at scientific conferences and exhibits. Participants will create a 4' x 6' poster from

Collins, Gary S.

226

Optical oxygen concentration monitor  

DOE Patents [OSTI]

A system for measuring and monitoring the concentration of oxygen uses as a light source an argon discharge lamp, which inherently emits light with a spectral line that is close to one of oxygen`s A-band absorption lines. In a preferred embodiment, the argon line is split into sets of components of shorter and longer wavelengths by a magnetic field of approximately 2,000 Gauss that is parallel to the light propagation from the lamp. The longer wavelength components are centered on an absorption line of oxygen and thus readily absorbed, and the shorter wavelength components are moved away from that line and minimally absorbed. A polarization modulator alternately selects the set of the longer wavelength, or upshifted, components or the set of the shorter wavelength, or downshifted, components and passes the selected set to an environment of interest. After transmission over a path through that environment, the transmitted optical flux of the argon line varies as a result of the differential absorption. The system then determines the concentration of oxygen in the environment based on the changes in the transmitted optical flux between the two sets of components. In alternative embodiments modulation is achieved by selectively reversing the polarity of the magnetic field or by selectively supplying the magnetic field to either the emitting plasma of the lamp or the environment of interest. 4 figs.

Kebabian, P.

1997-07-22T23:59:59.000Z

227

Optical oxygen concentration monitor  

DOE Patents [OSTI]

A system for measuring and monitoring the concentration of oxygen uses as a light source an argon discharge lamp, which inherently emits light with a spectral line that is close to one of oxygen's A-band absorption lines. In a preferred embodiment, the argon line is split into sets of components of shorter and longer wavelengths by a magnetic field of approximately 2000 Gauss that is parallel to the light propagation from the lamp. The longer wavelength components are centered on an absorption line of oxygen and thus readily absorbed, and the shorter wavelength components are moved away from that line and minimally absorbed. A polarization modulator alternately selects the set of the longer wavelength, or upshifted, components or the set of the shorter wavelength, or downshifted, components and passes the selected set to an environment of interest. After transmission over a path through that environment, the transmitted optical flux of the argon line varies as a result of the differential absorption. The system then determines the concentration of oxygen in the environment based on the changes in the transmitted optical flux between the two sets of components. In alternative embodiments modulation is achieved by selectively reversing the polarity of the magnetic field or by selectively supplying the magnetic field to either the emitting plasma of the lamp or the environment of interest.

Kebabian, Paul (Acton, MA)

1997-01-01T23:59:59.000Z

228

ASIA-PACIFIC JOURNAL OF ATMOSPHERIC SCIENCES, 44, 1, 2008, p. 1-9 Ship tracks have been considered the Rosetta Stone demonstrating the effects of anthropogenic aerosols on cloud radia-  

E-Print Network [OSTI]

the signatures of indirect aerosol effects (e.g. enhanced droplet concentration) caused by ship emissions. Key words:Ship tracks, cloud parameterization, indirect aerosol effect, effective radius, mean in preexisting marine stratiform clouds, and argued that ship tracks served as good examples of the Twomey effect

229

Increasing Scientific Productivity by Tracking Data  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Data Tracking Data Tracking Increases Scientific Productivity Data Tracking Increases Scientific Productivity July 20, 2011 | Tags: HPSS, NERSC Linda Vu, lvu@lbl.gov, +1 510 486 2402 HPSS Storage New supercomputers and networks are contributing to record levels of scientific productivity. In fact, every new system installed at NERSC over the last 10 years has generated about 50 percent more data than its predecessor. To effectively meet the increasing scientific demand for storage systems and services, the center's staff must first understand how data moves within the facility. Until recently, the process of obtaining these insights was extremely tedious because the statistics came from multiple sources, including network router statistics, client and server transfer logs, storage and accounting reports-all saved as very

230

RE Finance Tracking Initiative | Open Energy Information  

Open Energy Info (EERE)

RE Finance Tracking Initiative RE Finance Tracking Initiative Jump to: navigation, search Tool Summary Name: RE Finance Tracking Initiative Agency/Company /Organization: NREL Sector: Energy Topics: Finance Resource Type: Dataset User Interface: Website Website: financere.nrel.gov/finance/REFTI Country: United States Cost: Free Northern America Coordinates: 82.014870553805°, -42.046866416931° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":82.014870553805,"lon":-42.046866416931,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

231

WIPP Satellite Tracking System Relocates to Carlsbad  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

For Immediate Release WIPP Satellite Tracking System Relocates to Carlsbad Carlsbad, N.M., December 7, 2005 - The U.S. Department of Energy's (DOE) Carlsbad Field Office has announced that effective December 2, the DOE Transportation Tracking and Communication System (TRANSCOM) is fully staffed and operational in Carlsbad, N.M. The TRANSCOM system, previously based in Albuquerque, N.M, is used to track transuranic waste shipments to the Waste Isolation Plant (WIPP) near Carlsbad and other DOE nuclear waste shipments nationwide. Security Consultant Group (SCG), operator of the TRANSCOM satellite system, maintains a staff of seven operators in Carlsbad. The new TRANSCOM Communications Center is located at the Skeen-Whitlock Building, where DOE

232

Chemical tracking at the Rocky Flats Plant  

SciTech Connect (OSTI)

EG&G Rocky Flats, Inc., has developed a chemical tracking system to support compliance with the Emergency Planning and community Right-to-Know Act (EPCRA) at the Rocky Flats Plant. This system, referred to as the EPCRA Chemical Control system (ECCS), uses bar code technology to uniquely identify and track the receipt, distribution, and use of chemicals. Chemical inventories are conducted using hand-held electronic scanners to update a site wide chemical database on a VAX 6000 computer. Information from the ECCS supports preparation of the EPCRA Tier II and Form R reports on chemical storage and use.

Costain, D.B.

1994-04-01T23:59:59.000Z

233

Simulations of reflected sun beam traces over a target plane for an azimuth–elevation tracking heliostat with fixed geometric error sources  

Science Journals Connector (OSTI)

Abstract For a heliostat with geometric errors, the reflected central solar ray from the mirror surface center forms a curved error trace on the target plane during the day rather than staying fixed on one target point. A general azimuth–elevation tracking angle formula has been developed for a heliostat with a mirror-pivot offset and other typical geometric errors. This tracking angle formula is re-rewritten here as a series of easily solved expressions. This azimuth–elevation tracking angle formula is then used in a new complete geometric model of the sun-beam tracking errors for an azimuth–elevation tracking heliostat to simulate the sun beam tracking error trace on the target plane for a heliostat with fixed geometric errors. Here, the analysis is for a point sun and a point heliostat (or the heliostat considered as a small optical flat). The mirror surface center is defined as the orthogonal projection of the heliostat pivot on the mirror surface plane. The reflected sun-beam centre in the target plane is defined as the intersection of the mirror-surface-centre reflected central solar ray with the target plane. Due to a position tracking error in the target plane depending on the position and the orientation of the specific target plane, the position tracking error is further converted to the angular tracking error in the reflection direction to facilitate evaluation of the heliostat tracking performance. Simulations for the artificial #78 heliostat in the Beijing solar tower system on June 21st are shown to illustrate this heliostat tracking error model. This heliostat tracking error model can be used to reveal the effect of various geometrical errors in pedestal tilt etc. on the location of the beam at the target, and thus is useful in setting limits on the various geometrical errors. Essentially this paper allows one to estimate the offset of the reflected solar beam centre due to specific geometrical tracking errors, once the beam centre is computed by some other means. It also allows one to determine a limit on each error or set of errors which are allowable for a given purpose.

Minghuan Guo; Zhifeng Wang; Feihu Sun

2013-01-01T23:59:59.000Z

234

Linear concentrating solar collector  

SciTech Connect (OSTI)

The present invention relates to a segment of a linear concentrating solar collector which includes two plates distanced from each other and extending parallel to each other; a member connects the plates to each other and holes are bored in each of the plates in a parallel manner along a parabolic curve. A member passes through the holes each holding a small strip made of a reflecting material all strips together forming a parabolic surface. The invention relates also to a collector comprising at least two of each segments and an absorber extending along the focus line of the entire collector. The collector is advantageously provided with horizontal and/or vertical members which ascertains that the collector can follow the position of the sun.

Aharon, N. B.

1985-08-06T23:59:59.000Z

235

Concentrating Solar Power  

Science Journals Connector (OSTI)

Concentrating Solar Power (CSP) has the potential to contribute significantly to the generation of electricity by renewable energy resources in the U.S.. Thermal storage can extend the duty cycle of CSP beyond daytime hours to early evening where the value of electricity is often the highest. The potential solar resource for the southwest U.S. is identified along with the need to add power lines to bring the power to consumers. CSP plants in the U.S. and abroad are described. The CSP cost of electricity at the busbar is discussed. With current incentives CSP is approaching competiveness with conventional gas?fired systems during peak?demand hours when the price of electricity is the highest. It is projected that a mature CSP industry of over 4 GWe will be able to reduce the energy cost by about 50% and that U.S. capacity could be 120 GW by 2050.

Mark Mehos

2008-01-01T23:59:59.000Z

236

Fixed points, stable manifolds, weather regimes, and their predictability  

DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

In a simple, one-layer atmospheric model, we study the links between low-frequency variability and the model’s fixed points in phase space. The model dynamics is characterized by the coexistence of multiple “weather regimes.” To investigate the transitions from one regime to another, we focus on the identification of stable manifolds associated with fixed points. We show that these manifolds act as separatrices between regimes. We track each manifold by making use of two local predictability measures arising from the meteorological applications of nonlinear dynamics, namely, “bred vectors” and singular vectors. These results are then verified in the framework of ensemble forecasts issued from “clouds” (ensembles) of initial states. The divergence of the trajectories allows us to establish the connections between zones of low predictability, the geometry of the stable manifolds, and transitions between regimes.

Deremble, Bruno; D'Andrea, Fabio; Ghil, Michael [Univ. of California, Los Angeles, CA (United Staes). Atmospheric and Oceanic Sciences and Institute of Geophysics and Planetary Physics

2009-10-27T23:59:59.000Z

237

Design and Study of Portable Solar Dish Concentrator  

E-Print Network [OSTI]

Abstract ? The fixed focus concentrator are successfully used for medium temperature application in different parts of the world. There are few procedures reported in literatures for test and evaluating solar concentrator performance which are base on sensible heating of few working fluids. One of limitation of these procedures is requirement of precise operation condition during test. In this research the design and fabrication of solar dish concentration with diameters (1.6) meters for water heating application and solar steam was achieved.The dish was fabricated using metal of galvanized steel, and its interior surface is covered by a reflecting layer with reflectivity up to (76 %), and equipped with a receiver (boiler) located in the focal position. The dish equipped with tracking system and measurement of the temperature and solar power.Water temperature increased up to 80 C o, and the system efficiency increased by30 % at midnoon time.

Fareed M. Mohamed; Auatf. S. Jassim; Yaseen H. Mahmood; Mohamad A. K. Ahmed

238

Microsoft PowerPoint - Advances_Taylor  

Office of Environmental Management (EM)

MSP Airport Mall of America Bloomington, Minnesota WHAT is TRANSCOM? * Unclassified web-based tracking and communication system * Monitor radioactive material shipments at...

239

Photovoltaic concentrator technology development project. Sixth project integration meeting  

SciTech Connect (OSTI)

Thirty-three abstracts and short papers are presented which describe the current status of research, development, and demonstration of concentrator solar cell technology. Solar concentrators discussed include the parabolic trough, linear focus Fresnel lens, point focus Fresnel lens, and the parabolic dish. Solar cells studied include silicon, GaAs, and AlGaAs. Research on multiple junction cells, combined photovoltaic/thermal collectors, back contact solar cells, and beam splitter modules is described. Concentrator solar cell demonstration programs are reported. Contractor status summaries are given for 33 US DOE concentrator solar cell contracts; a description of the project, project status, and key results to date is included. (WHK)

None

1980-10-01T23:59:59.000Z

240

ADAPTIVE ROBUST TRACKING CONTROL OF PRESSURE  

E-Print Network [OSTI]

accuracy of pressure trajectory in the chamber when the pneumatic cylinder is moving. Off-line fitting, it is necessary to utilize the adaptive model compensation for improving the tracking accuracy of pressure and attenuation in pneumatic lines, valve dynamics, flow nonlinearities through the valve orifice, piston friction

Yao, Bin

Note: This page contains sample records for the topic "tracking concentrator pointed" 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

Double tracks test site characterization report  

SciTech Connect (OSTI)

This report presents the results of site characterization activities performed at the Double Tracks Test Site, located on Range 71 North, of the Nellis Air Force Range (NAFR) in southern Nevada. Site characterization activities included reviewing historical data from the Double Tracks experiment, previous site investigation efforts, and recent site characterization data. The most recent site characterization activities were conducted in support of an interim corrective action to remediate the Double Tracks Test Site to an acceptable risk to human health and the environment. Site characterization was performed using a phased approach. First, previously collected data and historical records sere compiled and reviewed. Generalized scopes of work were then prepared to fill known data gaps. Field activities were conducted and the collected data were then reviewed to determine whether data gaps were filled and whether other areas needed to be investigated. Additional field efforts were then conducted, as required, to adequately characterize the site. Characterization of the Double Tracks Test Site was conducted in accordance with the US Department of Energy`s (DOE) Streamlined Approach for Environmental Restoration (SAFER).

NONE

1996-05-01T23:59:59.000Z

242

Ubiquitous Computing, Customer Tracking, and Price Discrimination  

E-Print Network [OSTI]

Ubiquitous Computing, Customer Tracking, and Price Discrimination Alessandro Acquisti H. John Heinz's analysis is the possibility of combining context, historical, location and other personal data to dynamically alter the price of a product for each consumer - a form of price discrimination also known

Sadeh, Norman M.

243

Energy Intensity Baselining and Tracking Guidance  

Broader source: Energy.gov [DOE]

The Energy Intensity Baselining and Tracking Guidance for the Better Buildings, Better Plants Program helps companies meet the program’s reporting requirements by describing the steps necessary to develop an energy consumption and energy intensity baseline and calculating consumption and intensity changes over time.

244

Tracking Mobile Units for Dependable Message Delivery  

E-Print Network [OSTI]

Tracking Mobile Units for Dependable Message Delivery Amy L. Murphy, Member, IEEE Computer Society at their disposal at any time, mobile computing is developing as an important research area. One of the fundamental problems in mobility is maintaining connectivity through message passing as the user moves through

Zhou, Yuanyuan

245

Derr Track Storage Bldg Sigma Alpha  

E-Print Network [OSTI]

!( Derr Track Storage Bldg Japan Center Memorial Bell Tower Solar House Primrose Chancellor & Storage Bio. Sci Avent Ferry Complex Building Sigma Phi Epsilon 7 Welch Pi Kappa Alpha 10 Sigma Alpha Mu 4 and Visitor's Center Thompson Admin II Bostian Library Storage Facility Winston Clark Ricks Robertson Harris

Reeves, Douglas S.

246

Additive manufacturing of metallic tracks on  

E-Print Network [OSTI]

Additive manufacturing of metallic tracks on green ceramic/dielectrics Problem this technology (note: may require additional tooling/ set up time) · Rapid Prototyping & small scale manufacture microelectronics such as manufacture of LTCC ceramic/ Dielectric antenna and rapid PCB prototyping or repair

Painter, Kevin

247

Cloud Tracking in Cloud-Resolving Models  

E-Print Network [OSTI]

Cloud Tracking in Cloud-Resolving Models RMetS Conference 4th September 2007 Bob Plant Department of Meteorology, University of Reading, UK #12;Introduction Obtain life cycle statistics for clouds in CRM simulations What is the distribution of cloud lifetimes? What factors determine the lifetime of an individual

Plant, Robert

248

Economics UMass Lowell Commonwealth Honors Track  

E-Print Network [OSTI]

Economics UMass Lowell Commonwealth Honors Track Fall 2013 and Beyond Freshman Year/ Fall Semester.201 (H) Honors Economics I 3 49.202 Economics II 3 92.121 Pre-calc or any higher level 3 92.109 First Year Seminar 1 16 16 Sophomore Year/Fall Semester Cr Sophomore/Spring Semester 49.3/4 Economics

Massachusetts at Lowell, University of

249

Optical Blade Position Tracking System Test  

SciTech Connect (OSTI)

The Optical Blade Position Tracking System Test measures the blade deflection along the span of the blade using simple off-the-shelf infrared security cameras along with blade-mounted retro-reflective tape and video image processing hardware and software to obtain these measurements.

Fingersh, L. J.

2006-01-01T23:59:59.000Z

250

Double Tracks revegetation and monitoring plan  

SciTech Connect (OSTI)

This document is a reclamation plan for short-term and long-term stabilization of land disturbed by activities associated with interim clean-up of radionuclide-contaminated surface soil at the Double Tracks site. This document has been prepared to provide general reclamation practices and procedures that will be followed during restoration of the cleanup site. Reclamation demonstration plots were established near the site in the fall of 1994 to evaluate the performance of several native species and to evaluate different irrigation strategies. Results of the study at Double Tracks, as well as the results from numerous studies conducted at other sites (Area 11 and Area 19 of the Nevada Test Site), have been summarized and incorporated into this final reclamation plan for the interim cleanup of the Double Tracks site, located northwest of the Nevada Test Site on the Nellis Air Force Range. Surface soils at Double Tracks were contaminated as a result of the detonation of a device containing plutonium and depleted uranium using chemical explosives. The total amount of Pu deposited on the site was between 980 and 1,600 grams and was scattered downwind south of the detonation site. Short-term stabilization consists of the application of a chemical soil stabilizer that is applied immediately following excavation of the contaminated soils to minimize Pu resuspension. Long-term stabilization is accomplished by the establishment of a permanent vegetation.

NONE

1997-07-01T23:59:59.000Z

251

Gas Filled Detectors counting & tracking of  

E-Print Network [OSTI]

Gas Filled Detectors counting & tracking of particles energy loss generation of electron-ion+ pairs #12;Gas Filled Detectors Primary and Total Ionization fast charged particles ionize the atoms of a gas fraction of resulting primary electrons have enough kinetic energy to ionize other atoms #12;Gas Filled

Peletier, Reynier

252

Chemistry UMass Lowell Commonwealth Honors Track  

E-Print Network [OSTI]

Chemistry UMass Lowell Commonwealth Honors Track Scholarship Rises. Freshman Year/ Fall Semester Cr) Honors Chemistry I 3 84.136 (H) Honors Chemistry II 3 84.123 (H) Honors Chemistry I Lab 1 84.124 (H) Honors Chemistry II Lab 1 92.131 Calculus I 4 92.132 Honors Calculus II 4 Hon 110 Honors FYSH (AH) 3 Gen

Massachusetts at Lowell, University of

253

Assessment of University Sustainability Activities SUSTAINABILITY TRACKING,  

E-Print Network [OSTI]

Assessment of University Sustainability Activities under the SUSTAINABILITY TRACKING, ASSESSMENT Rashed-Ali, PhD. Prepared for: The UTSA Sustainability Council May 3rd , 2011 #12;yhd/s ^hDD Zz 2 | P a g-Ali, Assistant Professor in the College of Architecture, conducted a survey and assessment of UTSA sustainability

Dodla, Ramana

254

Career Tracks Job Family Descriptions FIELD: COMMUNICATIONS  

E-Print Network [OSTI]

, is paramount. Includes website development, or producing communications or instruction using the web, audio. #12;23/1/2012 Career Tracks Job Family Descriptions FIELD: ENGINEERING Aerospace Engineering Involves engineering design and development of aerospace systems including scientific instruments for spacecraft

Westerling, Anthony L.

255

Photovoltaic solar concentrator module  

SciTech Connect (OSTI)

This invention consists of a planar photovoltaic concentrator module for producing an electrical signal from incident solar radiation which includes an electrically insulating housing having a front wall, an opposing back wall and a hollow interior. A solar cell having electrical terminals is positioned within the interior of the housing. A planar conductor is connected with a terminal of the solar cell of the same polarity. A lens forming the front wall of the housing is operable to direct solar radiation incident to the lens into the interior of the housing. A refractive optical element in contact with the solar cell and facing the lens receives the solar radiation directed into the interior of the housing by the lens and directs the solar radiation to the solar cell to cause the solar cell to generate an electrical signal. An electrically conductive planar member is positioned in the housing to rest on the housing back wall in supporting relation with the solar cell terminal of opposite polarity. The planar member is operable to dissipate heat radiated by the solar cell as the solar cell generates an electrical signal and further forms a solar cell conductor connected with the solar cell terminal to permit the electrical signal generated by the solar cell to be measured between the planar member and the conductor.

Chiang, C.J.

1991-05-16T23:59:59.000Z

256

Enhancements to System for Tracking Radioactive Waste Shipments Benefit  

Broader source: Energy.gov (indexed) [DOE]

Enhancements to System for Tracking Radioactive Waste Shipments Enhancements to System for Tracking Radioactive Waste Shipments Benefit Multiple Users Enhancements to System for Tracking Radioactive Waste Shipments Benefit Multiple Users January 30, 2013 - 12:00pm Addthis Transportation Tracking and Communication System users can now track shipments of radioactive materials and access transportation information on mobile devices. Transportation Tracking and Communication System users can now track shipments of radioactive materials and access transportation information on mobile devices. CARLSBAD, N.M. - EM's Carlsbad Field Office (CBFO) recently deployed a new version of the Transportation Tracking and Communication System (TRANSCOM) that is compatible with mobile devices, including smartphones. The recent enhancement, TRANSCOM version 3.0, improves the user interface

257

Building Energy Software Tools Directory: EffTrack  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

EffTrack EffTrack EffTrack logo Collects, stores, and analyzes water cooled centrifugal and screw chiller operating data to determine performance, diagnose causes of inefficiency, and recommend corrective action. EffTrack notifies plant contacts via email if problems occur. Plant operators and facility managers can review the hourly updated information by logging in to EffTrack from any computer with Internet access. By following the EffTrack recommendations for improvement, plant operators can significantly lower the chiller kW/ton and plant kWh consumption. These savings are identified and measured in the EffTrack reports. Screen Shots Keywords chiller efficiency, chiller performance Validation/Testing EffTrack uses industry standard efficiency calculations along with a

258

Quantification of Line Tracking Solutions for Automotive Applications  

Science Journals Connector (OSTI)

Unlike the line tracking for automotive paint applications where the speed match between the robot and the vehicle body plays critical role for the paint quality, the line tracking for automotive general assembly...

Jane Shi; Rick F. Rourke; Dave Groll…

2009-01-01T23:59:59.000Z

259

Automatic Tracking Solar Street Light Based on Microcontroller  

Science Journals Connector (OSTI)

This paper designed an automatic tracking solar lights based on microcontroller, mainly by the solar panels, solar auto-tracking controller, batteries, lights and other components. Through the solar sensor cir...

Liu Zhen Ya; Guan Chen Zhi; Yan-hu Jiang…

2012-01-01T23:59:59.000Z

260

SunShot Award Helps Solar Tracking Company Expand Internationally...  

Office of Environmental Management (EM)

SunShot Award Helps Solar Tracking Company Expand Internationally SunShot Award Helps Solar Tracking Company Expand Internationally October 30, 2014 - 5:46pm Addthis SunShot...

Note: This page contains sample records for the topic "tracking concentrator pointed" 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

Multiple particle tracking to assess the microstructure of biological fluids  

E-Print Network [OSTI]

Tracking the Brownian motion of colloids was first used about a hundred years ago to demonstrate the molecular nature of matter. Today's colloidal scientists perform particle tracking experiments to assess the structural ...

Savin, Thierry, Ph. D. Massachusetts Institute of Technology

2006-01-01T23:59:59.000Z

262

Engineering cell-fluorescent ion track hybrid detectors  

Science Journals Connector (OSTI)

The lack of sensitive biocompatible particle track detectors has so far limited parallel detection of physical energy deposition and biological response. Fluorescent nuclear track detectors (FNTDs) based on Al2O3

Martin Niklas; Steffen Greilich; Claudius Melzig; Mark S Akselrod…

2013-06-01T23:59:59.000Z

263

JODY AZZOUNI. Tracking Reason: Proof, Consequence and Truth  

Science Journals Connector (OSTI)

......Reviews Jody Azzouni. Tracking Reason: Proof, Consequence and Truth Conrad Asmus * * School of Philosophy, Anthropology...gmail.com Jody Azzouni. Tracking Reason: Proof, Consequence and Truth . New York: Oxford University Press......

Conrad Asmus

2009-10-01T23:59:59.000Z

264

Track Bioenergy Legislation with New Web Tool | Department of...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Track Bioenergy Legislation with New Web Tool Track Bioenergy Legislation with New Web Tool February 27, 2014 - 5:59pm Addthis The Bioenergy KDF Legislative Library aims to help...

265

Biomedical Engineering AB Track Rev. October 2012 1/2  

E-Print Network [OSTI]

Biomedical Engineering AB Track Rev. October 2012 1/2 Plan of Study for the Biomedical or summer project resulting in a significant written report _______ #12;Biomedical Engineering AB Track Rev

266

First Observations of Tracking Clouds Using Scanning ARM Cloud Radars  

Science Journals Connector (OSTI)

Tracking clouds using scanning cloud radars can help to document the temporal evolution of cloud properties well before large-drop formation (weather radar “first echo”). These measurements also complement cloud and precipitation tracking using ...

Paloma Borque; Pavlos Kollias; Scott Giangrande

2014-12-01T23:59:59.000Z

267

Particle Tracking in Circular Accelerators Using the Exact Hamiltonian in SixTrack  

E-Print Network [OSTI]

Particle motion in accelerators is in general complex. Tracking codes are developed to simulate beam dynamics in accelerators. SixTrack is a long lived particle tracking code maintained at CERN, the European Organization for Nuclear Research. A particle accelerator consists of a large number of magnets and other electromagnetic devices that guide the particle through the accelerator. Each device defines its own equation of motion, which often cannot be solved exactly. For this purpose, a number of approximations are introduced in order to facilitate the solution and to speed up the computation. In a high-energy accelerator, the particle has small transverse momentum components. This is exploited in the small-angle approximation. In this approximation the equations of motion are expanded to a low order in the transverse momentum components. In low-energy particle accelerators, or in tracking with large momentum deviations, this approximation is invalid. The equations of motion of a particle passing through a f...

Fjellstrom, Mattias; Hansson, Johan

2013-12-13T23:59:59.000Z

268

Three-dimensional textural and compositional analysis of particle tracks and fragmentation history in aerogel  

SciTech Connect (OSTI)

We report analyses of aerogel tracks using (1) synchrotron X-ray computed microtomography (XRCMT), (2) laser confocal scanning microscopy (LCSM), and (3) synchrotron radiation X-ray fluorescence (SRXRF) of particles and their paths resulting from simulated hypervelocity impacts (1-2), and a single {approx}1 mm aerogel track from the Stardust cometary sample collector (1-3). Large aerogel pieces can be imaged sequentially, resulting in high spatial resolution images spanning many tomographic fields of view ('lambda-tomography'). We report calculations of energy deposited, and tests on aromatic hydrocarbons showing no alteration in tomography experiments. Imaging at resolutions from -17 to -1 micron/pixel edge (XRCMT) and to <100 nm/pixel edge (LCSM) illustrates track geometry and interaction of particles with aerogel, including rifling, particle fragmentation, and final particle location. We present a 3-D deconvolution method using an estimated point-spread function for aerogel, allowing basic corrections of LCSM data for axial distortion. LCSM allows rapid, comprehensive, non-destructive, high information return analysis of tracks in aerogel keystones, prior to destructive grain extraction. SRXRF with LCSM allows spatial correlation of grain size, chemical, and mineralogical data. If optical methods are precluded in future aerogel capture missions, XRCMT is a viable 3D imaging technique. Combinations of these methods allow for complete, nondestructive, quantitative 3-D analysis of captured materials at high spatial resolution. This data is fundamental to understanding the hypervelocity particle-aerogel interaction histories of Stardust grains.

Ebel, Denton S.; Greenberg, Michael; Rivers, Mark L.; Newville, Matthew; (AMNH)

2010-05-04T23:59:59.000Z

269

Track 1: Safety Culture- Taking ISMS to the Next Level  

Broader source: Energy.gov [DOE]

ISM Workshop Presentations Knoxville Convention Center, Knoxville, TN August 2009 Track 1: Safety Culture - Taking ISMS to the Next Level

270

Track 7: Environmental Protection, Environmental Management System (EMS), "Greening Initiatives"  

Broader source: Energy.gov [DOE]

ISM Workshop Presentations Knoxville Convention Center, Knoxville, TN August 2009 Track 7: Environmental Protection, Environmental Management System (EMS), "Greening Initiatives"

271

Points  

Broader source: Energy.gov (indexed) [DOE]

Project Selections Project Selections Announced October 26, 2009 Lead Research Organization (Partner Organizations) DOE Grant Amount Lead Organization Location Project Description 1366 Technologies Inc. (Massachusetts Institute of Technology - Lab for PV Research) $4,000,000 Lexington, MA Renewable Power (solar) "Direct Wafer" technology to form high efficiency "monocrystalline- equivalent" silicon wafers directly from molten silicon, with potential to halve the installed cost of solar photovoltaics. Agrivida, Inc. $4,565,800 Medford, MA Biomass Energy Cell wall-degrading enzymes grown within the plant itself that are activated after harvest, dramatically reducing the cost of cellulosic biofuels and chemicals Arizona State University (Fluidic Energy,

272

Audiovisual data fusion for successive speakers tracking Quentin Labourey12  

E-Print Network [OSTI]

FROM BOTH MODAL- ITIES: Various types of fusion methods exist in dif- ferent fields, a large partAudiovisual data fusion for successive speakers tracking Quentin Labourey12 , Olivier Aycard1: Audiovisual Data Fusion, Skin Detection, Sound Source Tracking, Talking Face Tracking Abstract: In this paper

Paris-Sud XI, Université de

273

42 ITE Journal / January 2009 Vehicle Tracking and Speed  

E-Print Network [OSTI]

Me events recorded by a video detection systeM, a vehicle-tracking algorithM was developed to track vehicles recognized the lack of vehicle tracking capabilities in most commercial video detection systems. Efforts have Detection Systems Most coMMercially available video detection systeMs are unable to differentiate turning

Tian, Zong Z.

274

Server-side Tracking of New Documents Fred Douglis  

E-Print Network [OSTI]

Server-side Tracking of New Documents Fred Douglis douglis@research.att.com AT&T Labs that is already common for other purposes, to identify a particular user across visits and to track the versions. Indeed, Chen and Koutsofios's Website News system [3], which tracks changes recursively from a site

Douglis, Fred

275

Tracking Changes in Healthcare Documents Sudarshan S. Chawathe  

E-Print Network [OSTI]

Tracking Changes in Healthcare Documents Sudarshan S. Chawathe Department of Computer Science professional with the task of effectively keep- ing track of the relevant body of Web documents when for allowing readers to track changes in doc- uments they have read, as well as to new documents that may

Chawathe, Sudarshan S.

276

VECTRACK. Teapot Tracking Engine for INTEL IPSC/860 Hypercube  

SciTech Connect (OSTI)

Written for particle orbit tracking using TEAPOT formalism. Useful for tracking the behaviour of a large number of particles for a short to intermediate term. The lattice to be tracked must first be pre-processed by TEAPOT, all corrections applied and analyses performed. Vectrack is then used to investigate how particles or ensembles of particles will behave.

Cole, B.; Hong, R. [Superconducting Super Collider Laboratory, Waxahachie, TX, (United States)

1993-02-01T23:59:59.000Z

277

Big Crunch-based omnidirectional light concentrators  

E-Print Network [OSTI]

Omnidirectional light concentration remains an unsolved problem despite such important practical applications as design of efficient mobile photovoltaic cells. Optical black hole designs developed recently offer partial solution to this problem. However, even these solutions are not truly omnidirectional since they do not exhibit a horizon, and at large enough incidence angles light may be trapped into quasi-stationary orbits around such imperfect optical black holes. Here we propose and realize experimentally another gravity-inspired design of a broadband omnidirectional light concentrator based on the cosmological Big Crunch solutions. By mimicking the Big Crunch spacetime via corresponding effective optical metric we make sure that every photon world line terminates in a single point.

Igor I. Smolyaninov; Yu-Ju Hung

2014-05-16T23:59:59.000Z

278

Thermal regeneration of an electrochemical concentration cell  

DOE Patents [OSTI]

A system and method for thermally regenerating an electrochemical concentration cell having first and second aluminum electrodes respectively positioned in contact with first and second electrolytes separated by an ion exchange member, the first and second electrolytes being composed of different concentrations of an ionic solvent and a salt, preferably an aluminum halide. The ionic solvent may be either organic or inorganic with a relatively low melting point, the ionic solvent and the salt form a complex wherein the free energy of formation of said complex is less than about -5 Kcal/mole. A distillation column using solar heat or low grade industrial waste heat receives the first and second electrolytes and thermally decomposes the salt-solvent complex to provide feed material for the two half cells.

Krumpelt, Michael (Naperville, IL); Bates, John K. (Plainfield, IL)

1981-01-01T23:59:59.000Z

279

Thermal regeneration of an electrochemical concentration cell  

DOE Patents [OSTI]

A system and method are described for thermally regenerating an electrochemical concentration cell having first and second aluminum electrodes respectively positioned in contact with first and second electrolytes separated by an ion exchange member, the first and second electrolytes being composed of different concentrations of an ionic solvent and a salt, preferably an aluminum halide. The ionic solvent may be either organic or inorganic with a relatively low melting point, the ionic solvent and the salt form a complex wherein the free energy of formation of said complex is less than about -5 kcal/mole. A distillation column using solar heat or low grade industrial waste heat receives the first and second electrolytes and thermally decomposes the salt-solvent complex to provide feed material for the two half cells.

Krumpelt, M.; Bates, J.K.

1980-05-09T23:59:59.000Z

280

Increase in uranium concentration in streams draining Rocky Flats, Colorado  

Science Journals Connector (OSTI)

Uranium has been determined by fission track measurements of two suites of water samples taken at different times from a variety of surface waters in an area in central Colorado. Although this area surrounds the Rocky Flats nuclear plant at which parts for weapons are fabricated, the variations in U are inferred to be influenced most strongly by the distance of water flow across soil derived from the U-rich Laramie Formation. This flow produces progressive increases in U concentrations as flow proceeds eastward and hence is much more closely related to the local geochemistry and geology than to the presence of the Rocky Flats plant.

A.C. Delany; R.L. Fleischer

1978-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "tracking concentrator pointed" 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

ENGINEERING DEPARTMENTS, DEGREES AND CONCENTRATIONS  

E-Print Network [OSTI]

ENGINEERING, CHEMISTRY AND SCIENCE (TECS) Biological Engineering (BE) Biomedical Engineering (BME) ChemicalENGINEERING DEPARTMENTS, DEGREES AND CONCENTRATIONS DEPARTMENT DEGREE CONCENTRATION (optional) BIOLOGICAL AND AGRICULTURAL ENGINEERING (BAE) BIOMEDICAL ENGINEERING (BME) CHEMICAL AND BIOMOLECULAR

282

Development of a genetic algorithm tracking technique for the particle image velocimetry and comparison with other tracking models  

E-Print Network [OSTI]

particles between sequential frames. The new tracking method was compared with three other existing tracking methods to evaluate their efficiency, i.e., reliability and yield. Synthetic data from a Large Eddy Simulation (LES) computational fluid dynamic...

Yoon, Churl

2012-06-07T23:59:59.000Z

283

NREL: Concentrating Solar Power Research - Southwest Concentrating Solar  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Southwest Concentrating Solar Power 1000-MW Initiative Southwest Concentrating Solar Power 1000-MW Initiative Photos of various concentrating solar power systems. NREL, working through SunLab, supports the U.S. Department of Energy's goal to install 1,000 megawatts (MW) of new concentrating solar power systems in the southwestern United States by 2010. This level of deployment, combined with research and development to reduce technology component costs, could help reduce concentrating solar power electricity costs to $0.07/kilowatt-hour. At this cost, concentrating solar power can compete effectively in the Southwest's energy markets. To achieve the Initiative's goal, the U.S. Department of Energy is partnering with the Western Governors' Association to encourage concentrating solar power installations in Arizona, California, Colorado,

284

SEDIMENT CONCENTRATION BELOW FREE OVERFALL  

E-Print Network [OSTI]

SEDIMENT CONCENTRATION BELOW FREE OVERFALL By O. R. Stein,~Associate Member, ASCE, and P. Y. Julien and sediment concentration, which may affect downstream morphology and water quality as well as the structure is to determine relationships between time, scour depth, scour-hole volume, and sediment concentration generated

Julien, Pierre Y.

285

Oak Ridge Office SharePoint( MicrosoftSHarePointServer) PIA,...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

SharePoint( MicrosoftSHarePointServer) PIA, Information Resourses Management Division Oak Ridge Office SharePoint( MicrosoftSHarePointServer) PIA, Information Resourses Management...

286

Hydrocarbon concentrations at the Alpine mountain sites Jungfraujoch and Arosa  

Science Journals Connector (OSTI)

Volatile hydrocarbons have been measured for 1 yr at Arosa (2010 m asl) to determine the contribution of European emissions to the trace gas concentrations at this remote site. Results are compared to concurrent hydrocarbon concentrations at the high Alpine background site Jungfraujoch (3580 m asl). Hydrocarbon concentrations at Arosa are generally much higher than at Jungfraujoch. The influence of the Alpine boundary layer air was studied based on the diurnal variation of hydrocarbon concentrations, i.e. rising pollutant concentrations in the morning at Arosa and in the afternoon at Jungfraujoch. Different hydrocarbon emission sources of the uplifting air were found at the two sites. At Jungfraujoch, several transatlantic events were detected from October 2001 to January 2002 based on analysis of hydrocarbon ratios and air parcel trajectories. The OH concentration during the transatlantic transport was estimated to be around 5×105 cm?3, derived from simultaneous hydrocarbon oxidation and dilution in the free troposphere. These transatlantic transport events were tracked back to warm conveyor belts, characterized by uniform dynamics and relatively uniform surface sources. In addition, ozone production in the free tropospheric transport was also documented in these events.

Yingshi Li; Mike Campana; Stefan Reimann; Daniel Schaub; Konrad Stemmler; Johannes Staehelin; Thomas Peter

2005-01-01T23:59:59.000Z

287

Detecting determinism from point processes  

Science Journals Connector (OSTI)

The detection of a nonrandom structure from experimental data can be crucial for the classification, understanding, and interpretation of the generating process. We here introduce a rank-based nonlinear predictability score to detect determinism from point process data. Thanks to its modular nature, this approach can be adapted to whatever signature in the data one considers indicative of deterministic structure. After validating our approach using point process signals from deterministic and stochastic model dynamics, we show an application to neuronal spike trains recorded in the brain of an epilepsy patient. While we illustrate our approach in the context of temporal point processes, it can be readily applied to spatial point processes as well.

Ralph G. Andrzejak; Florian Mormann; Thomas Kreuz

2014-12-02T23:59:59.000Z

288

Congressional Affairs Points of Contact  

Broader source: Energy.gov [DOE]

Lists the Office of Congressional Affairs points of contacts. The Office of Congressional Affairs is available to assist congressional offices and committees regarding Department of Energy programs and activities.

289

Economics Environmental Science Track This track of courses is designed for students who want to couple their training in economics  

E-Print Network [OSTI]

1 of 2 Economics Environmental Science Track This track of courses is designed for students who want to couple their training in economics with additional studies in environmental science. Ideally, students in this track would complement their economics or agricultural business major with a minor

Maxwell, Bruce D.

290

Measurement and Performance Tracking (MAPT) Initiative | Open Energy  

Open Energy Info (EERE)

Measurement and Performance Tracking (MAPT) Initiative Measurement and Performance Tracking (MAPT) Initiative Jump to: navigation, search Logo: WRI Measurement and Performance Tracking (MAPT) Project Name WRI Measurement and Performance Tracking (MAPT) Project Agency/Company /Organization World Resources Institute (WRI) Sector Climate, Energy Topics Background analysis, Baseline projection, Low emission development planning, -NAMA Resource Type Case studies/examples, Guide/manual, Lessons learned/best practices, Training materials, Workshop Website http://www.wri.org/mapt Program Start 2011 Country Brazil, Colombia, Ethiopia, India, South Africa, Thailand South America, South America, Eastern Africa, Southern Asia, Southern Africa, South-Eastern Asia References Measurement and Performance Tracking (MAPT) Project[1]

291

Improving angular acceptance of stationary low-concentration photovoltaic compound parabolic concentrators using acrylic lens-walled structure  

Science Journals Connector (OSTI)

Low-concentration photovoltaic compound parabolic concentrators (PV-CPC) are a significant addition of solar cell application especially in Building Integrated Photovoltaics because it does not need a tracking system and can be installed in a stationary condition. However higher concentrations correspond with the smaller half acceptance angle which is a limitation but can be improved by a lens-walled structure. In this paper to validate the rationale of this structure a low-concentration PV-CPC using an acrylic lens-walled structure module was designed and fabricated with low-cost materials. The corresponding simulation was also performed with different materials to determine whether the factor that the truncation had a significant effect. The observed outcome implied that the low-concentration PV-CPC using an acrylic lens-walled structure has a larger half acceptance angle than the mirror CPC and that a maximum optical efficiency of more than 80% can be achieved using Schott BK glass as the lens wall material. The lens-walled structure improved the angular acceptance of stationary low-concentration PV-CPC providing a basis for further research.

2014-01-01T23:59:59.000Z

292

PRIVACY IMPACT ASSESSMENT: Visitor Dosimeter Badge Tracking  

Broader source: Energy.gov (indexed) [DOE]

Visitor Visitor Dosimeter Badge Tracking PIA Template Version 3 - May, 2009 Department of Energy Privacy Impact Assessment (PIA) Guidance is provided in the template. See DOE Order 206.1, Department of Energy Privacy Program, Appendix A, Privacy Impact Assessments, for requirements and additional guidance for conducting a PIA: http://www.directives.doe.gov/pdfs/doe/doetexUneword/206/o2061.pdf Please complete electronically: no hand-written submissions will be accepted. This template may not be modified. MODULE 1- PRIVACY NEEDS ASSESSMENT Date June 11, 2009 Deparbnental Idaho National Laboratory Element & Site Building 616 Willow Creek Building Name of Information Visitor Dosimeter Badge Tracking System or IT Project Exhibit Project UID 217975 New PIA ~ Update D Name, Title I Contact Information Phone, Email Lynn Rockhold System Owner I' 1\ I \ \ ( y P II 114 I' "I

293

Noncompliance Tracking System Registration and Reporting  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Noncompliance Tracking System Registration and Reporting Office of Enforcement and Oversight NTS Reporting NTS Registration (For new registration and password changes) REGISTRATION INFORMATION Registrants for the Noncompliance Tracking System (NTS) with an ACTIVE ACCOUNT for the HSS Reporting Systems: Occurrence Reports & Processing System (ORPS), Computerized Accident/Incident Reporting System (CAIRS), Suspect Counterfeit Items (SCI), or the Daily Occurrence (DO) reports can use the same credentials to access NTS. Please access NTS REPORTING. Registrants who DO NOT have an HSS Reporting Systems account, or who have not accessed their account within the past six months MUST REGISTER for a NTS account. Please register at: HSS Reporting Systems Registration. If you need additional information or assistance in registering, please contact HSS User Support.

294

Project Tracking System (PTS) user's manual  

SciTech Connect (OSTI)

The Bartlesville Energy Technology Center (BETC) Project Tracking System (PTS) is a computerized information system developed to generate automatic updates to other Department of Energy (DOE) systems such as the Business Management Information System (BMIS), as well as to aid in the in-house tracking of the cost, schedule, and manpower status of the approximately 200 BETC contracts. The PTS data base contains administrative and limited technical information on planned, active, and terminated contracts. The PTS software and data base are resident upon BETC's PDP 11/70 computer, which utilizes the RSX-11M operating system. PTS programming was done in the BASIC + II and DATA-TRIEVE languages, which allow for conversational, English-like interactions between the user and the system during both input and output sessions.

Mohr, E.B.

1981-03-01T23:59:59.000Z

295

NUCLEAR NON-PROLIFERATION-TASK 1: Deployable Plume and Aerosol Release Prediction and Tracking System  

SciTech Connect (OSTI)

This contract was awarded in response to a proposal in which a deployable plume and aerosol release prediction and tracking system would be designed, fabricated, and tested. The system would gather real time atmospheric data and input it into a real time atmospheric model that could be used for plume predition and tracking. The system would be able to be quickly deployed by aircraft to points of interest or positioned for deployment by vehicles. The system would provide three dimensional (u, v, and w) wind vector data, inversion height measurements, surface wind information, classical weather station data, and solar radiation. The on-board real time computer model would provide the prediction of the behavior of plumes and released aerosols.

John Kleppe, Ph.D., William Norris, Ph.D., Mehdi Etezada, Ph.D., P.E.

2006-07-19T23:59:59.000Z

296

Longitudinal and transverse tracking studies for ESS  

SciTech Connect (OSTI)

The techniques currently being employed to model beam transport and injection into the ESS accumulator rings are described. These use a combination of one dimensional (longitudinal) and two-dimensional (transverse) particle tracking codes, incorporating a variety of methods of simulating self-field effects. A description of the proposed mechanism for painting longitudinal and transverse phase-space for ESS is given, and the results of the modeling and subsequent optimization are discussed. {copyright} {ital 1996 American Institute of Physics.}

Prior, C.R. [Rutherford Appleton Laboratory, Chilton, Oxon (United Kingdom)

1996-06-01T23:59:59.000Z

297

Robot positioning based on point-to-point motion capability  

SciTech Connect (OSTI)

This paper presents an optimal search method for determining the base location of a robot manipulator so that the robot can have a designated point-to-point (PTP) motion capabilities. Based on the topological characterization of the manipulator workspace and the definitions of various p-connectivity, a computational method is developed for enumerating various PTP motion capabilities into quantitative cost functions. Then an unconstrained search by minimizing the cost function yields the task feasible location of the robot base. This methodology is useful for placement of mobile manipulators and robotic workcell layout design.

Park, Y. S.; Cho, H. S.; Koh, K. C.

2000-03-20T23:59:59.000Z

298

Federal Energy Management Program: EISA Compliance Tracking System Reports  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

EISA Compliance EISA Compliance Tracking System Reports and Data to someone by E-mail Share Federal Energy Management Program: EISA Compliance Tracking System Reports and Data on Facebook Tweet about Federal Energy Management Program: EISA Compliance Tracking System Reports and Data on Twitter Bookmark Federal Energy Management Program: EISA Compliance Tracking System Reports and Data on Google Bookmark Federal Energy Management Program: EISA Compliance Tracking System Reports and Data on Delicious Rank Federal Energy Management Program: EISA Compliance Tracking System Reports and Data on Digg Find More places to share Federal Energy Management Program: EISA Compliance Tracking System Reports and Data on AddThis.com... Requirements by Subject Requirements by Regulation Notices & Rules

299

High concentration low wattage solar arrays and their applications  

SciTech Connect (OSTI)

Midway Labs currently produces a 335x concentrator module that has reached as high as 19{percent} active area efficiency in production. The current production module uses the single crystal silicon back contact SunPower cell. The National Renewable Energy Lab has developed a multi junction cell using GalnP/GaAs technologies. The high efficiency ({gt}30{percent}) and high cell voltage offer an opportunity for Midway Labs to develop a tracking concentrator module that will provide 24 volts in the 140 to 160 watt range. This voltage and wattage range is applicable to a range of small scale water pumping applications that make up the bulk of water pumping solar panel sales. {copyright} {ital 1997 American Institute of Physics.}

Hoffmann, R. [Midway Labs, Inc., 350 N. Ogden Avenue, Chicago, Illinois 60607 (United States); OGallagher, J.; Winston, R. [University of Chicago (United States)

1997-02-01T23:59:59.000Z

300

FATRAS - A Novel Fast Track Simulation Engine for the ATLAS Experiment  

E-Print Network [OSTI]

Monte Carlo simulation of the detector response is an essential part of any kind of analysis of contemporary High Energy Physics experimental data. At the LHC these simulated data sets are needed with large statistics and high precision level, which makes their production a CPU-intensive task. ATLAS has thus concentrated on optimising both full and fast detector simulation techniques to achieve this goal within the computing limits of the collaboration. At the early stages of data-taking, in particular, it is necessary to reprocess Monte Carlo event samples continuously, while tuning the simulation modules to improve the agreement with the data taken from the detector itself. We present a new, fast track simulation engine which implements a full Monte Carlo simulation based on modules and the geometry of the standard ATLAS track reconstruction application. This is combined with a fast parametric-response simulation of the Calorimeter. This approach shows a high level of agreement with the full simulation, whi...

Fleischmann, S; The ATLAS collaboration

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "tracking concentrator pointed" 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

Cylindrical Acoustic Levitator/Concentrator  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Cylindrical Acoustic Levitator/Concentrator Cylindrical Acoustic Levitator/Concentrator Cylindrical Acoustic Levitator/Concentrator A low-power, inexpensive acoustic apparatus for levitation and/or concentration of aerosols and small liquid/solid samples having particulates up to several millimeters in diameter in air or other fluids is described. Available for thumbnail of Feynman Center (505) 665-9090 Email Cylindrical Acoustic Levitator/Concentrator A low-power, inexpensive acoustic apparatus for levitation and/or concentration of aerosols and small liquid/solid samples having particulates up to several millimeters in diameter in air or other fluids is described. It is constructed from a commercially available, hollow cylindrical piezoelectric crystal which has been modified to tune the resonance frequency of the breathing mode resonance of the crystal to that

302

AVTA: ChargePoint AC Level 2 Charging System Testing Results  

Broader source: Energy.gov [DOE]

The Vehicle Technologies Office's Advanced Vehicle Testing Activity carries out testing on a wide range of advanced vehicles and technologies on dynamometers, closed test tracks, and on-the-road. These results provide benchmark data that researchers can use to develop technology models and guide future research and development. The following report describes results from testing done on the ChargePoint AC Level 2 charging system for plug-in electric vehicles.

303

PARKS, RECREATION & TOURISM Concentration in  

E-Print Network [OSTI]

PARKS, RECREATION & TOURISM Concentration in Conservation Law Enforcement School Experience in Parks, Recreation, and Tourism 1 Semester 5 Semester 6 SFR 434/534 - Recreation Site Planning

Thomas, Andrew

304

Sandia National Laboratories: concentrating photovoltaic  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Energy Efficiency On March 29, 2013, in Concentrating Solar Power, Energy, Partnership, Photovoltaic, Renewable Energy, Research & Capabilities, Solar, Systems Engineering MODE...

305

Concentrated solar power on demand .  

E-Print Network [OSTI]

??This thesis describes a new concentrating solar power central receiver system with integral thermal storage. Hillside mounted heliostats direct sunlight into a volumetric absorption molten… (more)

Codd, Daniel Shawn

2011-01-01T23:59:59.000Z

306

Evaluation of the Solar One track alignment methodology  

SciTech Connect (OSTI)

This paper reviews the heliostat beam tracking alignment procedure that was used at Solar One during its construction and operation from 1980 through 1988 to align the 1,818 heliostats and discusses an alternative method which would improve their tracking accuracy. A theoretical tracking error model was developed and used to evaluate the Solar One beam tracking alignment system. The results of this analysis illustrates that this method of heliostat track alignment has significant limitations. The model illustrates that the Solar One alignment system only provides a small increase in heliostat beam tracking accuracy in most cases, may decrease accuracy for some heliostats, and requires periodic updating to maintain the beam tracking accuracy. An alternate method of heliostat track alignment that was developed, patented, and used by McDonnell Douglas Aerospace (MDA) since the mid-1970s is discussed. This patent (No. 4,564,275) illustrates how the overall tracking accuracy of the Solar One heliostat field could be greatly improved while eliminating the need for periodic updating. Also, this alternate method does not require any new hardware because it can be implemented in the existing heliostat control system software. Examples are presented that illustrate how the basic tracking accuracy can be improved by a factor of 5 to 10 times using this alternate alignment system.

Stone, K. [McDonnell Douglas Aerospace, Huntington Beach, CA (United States); Lopez, C.W. [Southern California Edison, Rosemead, CA (United States)

1995-11-01T23:59:59.000Z

307

Microsoft PowerPoint - Engaging_Williams  

Office of Environmental Management (EM)

Tracking TRANSCOM Origin to Destination 2010 STS SNF Shipments FRR via JBC: Germany- 2 casks Turkey- 1 cask Israel- 1 cask Chile- 2 casks Japan- 4 casks Sweden- 1 cask...

308

Declaration of Concentration in Nanotechnology  

E-Print Network [OSTI]

Declaration of Concentration in Nanotechnology Return completed form to ENG Undergraduate Records:____________________________ Instructions: ENG students declaring a Concentration in Nanotechnology should complete this form, obtain REQUIRED COURSES (Choose 1) 1. ENG EC 481­ Fundamentals of Nanomaterials and Nanotechnology 4.0 ELECTIVES

Goldberg, Bennett

309

Project Approval Form Concentration in  

E-Print Network [OSTI]

Project Approval Form Concentration in Nanotechnology Return completed form to ENG Undergraduate Plan to complete the project as a requirement for the concentration in Nanotechnology. Depending upon project, you will need to submit a written summary of your work, signed (approved) by your project

Goldberg, Bennett

310

Process for concentrated biomass saccharification  

DOE Patents [OSTI]

Processes for saccharification of pretreated biomass to obtain high concentrations of fermentable sugars are provided. Specifically, a process was developed that uses a fed batch approach with particle size reduction to provide a high dry weight of biomass content enzymatic saccharification reaction, which produces a high sugars concentration hydrolysate, using a low cost reactor system.

Hennessey, Susan M. (Avondale, PA); Seapan, Mayis (Landenberg, PA); Elander, Richard T. (Evergreen, CO); Tucker, Melvin P. (Lakewood, CO)

2010-10-05T23:59:59.000Z

311

Tracking discourse and qualitative document analysis  

Science Journals Connector (OSTI)

New information bases pose challenges and opportunities for researchers seeking to enhance content analysis and chart cultural shifts using public documents such as newspapers and magazines. A qualitative approach to media analysis is combined with a specific application, ‘tracking discourse’, to demonstrate how research questions can be transformed into a research design that permits rich textual interpretive and thematic analysis, as well as provide quantitative information about trends and emphases over time, across media, and across topics. Materials from an ongoing project on the ‘discourse of fear’ illustrate a shift in major American newspapers' coverage toward more extensive use of crime, fear, and victim. Implications for cultural researchers are discussed.

David L. Altheide

2000-01-01T23:59:59.000Z

312

Midwest Renewable Energy Tracking System (Multiple States) | Department of  

Broader source: Energy.gov (indexed) [DOE]

Renewable Energy Tracking System (Multiple States) Renewable Energy Tracking System (Multiple States) Midwest Renewable Energy Tracking System (Multiple States) < Back Eligibility Developer Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Illinois Program Type Green Power Purchasing Provider MidWest ISO The Midwest Renewable Energy Tracking System (M-RETS®) tracks renewable energy generation in participating States and Provinces and assists in verifying compliance with individual state/provincial or voluntary Renewable Portfolio Standards (RPS) and objectives. M-RETS® is a tool to keep track of all relevant information about renewable energy produced and delivered in the region. Currently, several States and Provinces participate in M-RETS®: Illinois,

313

ORO Office Safeguards and Security Clearance Tracking System and Visitor  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Office Safeguards and Security Clearance Tracking System and Office Safeguards and Security Clearance Tracking System and Visitor Control System PIA, Oak Ridge Operations Office ORO Office Safeguards and Security Clearance Tracking System and Visitor Control System PIA, Oak Ridge Operations Office ORO Office Safeguards and Security Clearance Tracking System and Visitor Control System PIA, Oak Ridge Operations Office ORO Office Safeguards and Security Clearance Tracking System and Visitor Control System PIA, Oak Ridge Operations Office More Documents & Publications Occupational Medicine - Assistant PIA, Idaho National Laboratory ORO Verification of Employment Tracking System(VETS) PIA, Oak ridge Operations Office iManage Strategic Integrated Procurement Enterprise System (STRIPES) PIA, Office of Procurement and Assistance Management

314

Sim Track User's Manual (v 1.0)  

SciTech Connect (OSTI)

SimTrack is a simple c++ library designed for the numeric particle tracking in the high energy accelerators. It adopts the 4th order symplectic integrator for the optical transport in the magnetic elements. The 4-D and 6-D weak-strong beam-beam treatments are integrated in it for the beam-beam studies. SimTrack is written with c++ class and standard template library. It provides versatile functions to manage elements and lines. It supports a large range of types of elements. New type of element can be easily created in the library. SimTrack calculates Twiss, coupling and fits tunes, chromaticities and corrects closed orbits. AC dipole and AC multipole are available in this library. SimTrack allows change of element parameters during tracking.

Luo, Y.

2010-01-27T23:59:59.000Z

315

Hydrogen effects on the point defect spectrum in Fe-C alloys  

E-Print Network [OSTI]

As part of a multi-scale approach for modeling hydrogen embrittlement in hardened steels we have investigated, employing density functional theory methods, the stability and concentrations of the point defect clusters ...

Monasterio Velásquez, Paul Rene

2008-01-01T23:59:59.000Z

316

Optimal concentrations in transport systems  

Science Journals Connector (OSTI)

...Springer. 14 Haynes, WM (ed.). 2012 CRC handbook of chemistry and physics, 93rd edn. Boca Raton, FL: CRC Press. 15 Jensen...Schadschneider, A . 2002 Traffic flow: a statistical physics point of view. Phys. A Stat. Mech. Appl. 313...

2013-01-01T23:59:59.000Z

317

CONCENTRATES  

Science Journals Connector (OSTI)

Tertiary oil recovery shows promise with a new nonthermal process developed by Marathon Oil Co., Findlay, Ohio. ... Marathon says tests in its old southeastern Illinois oil field (only 60 to 65% depleted) show that the scheme can recover a high proportion of the remaining petroleum. ... The company ran two oil-well test patterns, injecting emulsion in the center well and drawing up fluid in surrounding wells. ...

1966-09-19T23:59:59.000Z

318

CONCENTRATES  

Science Journals Connector (OSTI)

A possible new gamma ray source in the constellation Scorpius will be sought by Dr. Robert C. Haymes, Rice University, using a gamma ray telescope mounted on a balloon launched in Argentina. ... Radiation analysis should tell whether the rays come from an exploding star, high energy particles, or anti-matter. ...

1969-10-20T23:59:59.000Z

319

CONCENTRATES  

Science Journals Connector (OSTI)

Cadarache, France, was selected last week to be the site for the International Thermonuclear Experimental Reactor (ITER) project. ... ITER's goal is to demonstrate a self-sustaining fusion reaction in a power-plant-like environment that could lead to commercial nuclear fusion power plants by the turn of the century, said Raymond L. Orbach, head of the Department of Energy's Office of Science. ...

2005-07-04T23:59:59.000Z

320

CONCENTRATES  

Science Journals Connector (OSTI)

EVONIK PULLS BACK IPO, INVESTS IN R&DEvonik Industries has once again shelved an initial public offering (IPO) of stock. In April, RAG Foundation, which owns about 75% of the firm, said that it was considering an IPO within the next 15 months and that ...

2011-10-03T23:59:59.000Z

Note: This page contains sample records for the topic "tracking concentrator pointed" 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

CONCENTRATES  

Science Journals Connector (OSTI)

SHIN-ETSU MAKES FIRST MAJOR CHINA INVESTMENT ... Although China is a major market for Shin-Etsu, Japan’s most profitable chemical maker, the company has until now refrained from making large investments there because it perceived the political risk to be too great. ... Citing rising global demand from tire makers, Lanxess says it will invest about $25 million to raise butyl and halobutyl rubber capacity at its site in Zwijndrecht, Belgium. ...

2010-07-05T23:59:59.000Z

322

CONCENTRATES  

Science Journals Connector (OSTI)

The student-designed homes were required to provide enough electricity to meet all home energy needs as well as enough to charge up an electric car. ...

2002-10-14T23:59:59.000Z

323

CONCENTRATES  

Science Journals Connector (OSTI)

The Department of Energy last week denied $2 billion in loan guarantees sought by the global energy company USEC to continue construction of its partially complete centrifuge-based uranium enrichment facility in Piketon, Ohio, which would create low-enrichment uranium (LEU) fuel for nuclear power plants. ... DOE did, however, offer USEC some $45 million in grants for further research. ... Currently, USEC produces about half the nation’s LEU reactor fuel primarily by down-blending Russian bomb-grade uranium, along with using an older, noncentrifuge-based enrichment technology. ...

2009-08-03T23:59:59.000Z

324

CONCENTRATES  

Science Journals Connector (OSTI)

CSB SLAMS XCEL ENERGY FOR DEADLY ACCIDENT ... A flash fire that killed five workers in a deep underground tunnel nearly three years ago was caused by safety failures of Xcel Energy and contractor RPI Coating, says a report by the Chemical Safety & Hazard Investigation Board (CSB), released on Aug. 25. ... CSB’s report blamed Xcel and RPI for failing to train workers and to take adequate precautions when handling MEK. ...

2010-08-30T23:59:59.000Z

325

CONCENTRATES  

Science Journals Connector (OSTI)

GAO faults NRC for oversight of nuclear plant security plansThe Nuclear Regulatory Commission (NRC) is relying too heavily on nuclear power plant owners to verify the adequacy of their terrorism security plans, says a recent report by the Government ...

2004-09-20T23:59:59.000Z

326

CONCENTRATES  

Science Journals Connector (OSTI)

Worldwide, chemical industry products reduced emissions of greenhouse gases far more than the emissions generated in making these products, according to a study by McKinsey & Co. ... Next came compact fluorescent lighting, fertilizers, and lightweight composite materials. ...

2009-07-13T23:59:59.000Z

327

CONCENTRATES  

Science Journals Connector (OSTI)

A team led by Amy E. Landis of the University of Pittsburgh evaluated a dozen polymers: seven derived from petroleum, four from biomass feedstocks, and one in part from both sources. ...

2010-10-04T23:59:59.000Z

328

CONCENTRATES  

Science Journals Connector (OSTI)

DOE announces cleanups, fines, new safety plans ... DOE also announced $124,000 in fines against contractors operating at the Hanford Site in Washington, the Rocky Flats Site in Colorado, and the Idaho National Engineering & Environmental Laboratory for endangering workers through exposure to radioactive contamination.? ...

2000-06-05T23:59:59.000Z

329

CONCENTRATES  

Science Journals Connector (OSTI)

COURT BACKS LILLY IN PATENT CASEA federal appeals court has ruled in favor of Eli Lilly & Co. in a patent dispute with Ariad Pharmaceuticals. The U.S. Court of Appeals for the Federal Circuit found that Lilly did not violate a patent held by Ariad ...

2010-03-29T23:59:59.000Z

330

CONCENTRATES  

Science Journals Connector (OSTI)

TECHNOLOGY ... A thermocouple developed by North American Rockwell for the Apollo lunar landing program will be manufactured and marketed by William Wahl Corp., Santa Monica, Calif. ... Potential uses include making refractory metals and development of gas turbine engines, a company spokesman says. ...

1969-10-13T23:59:59.000Z

331

CONCENTRATES  

Science Journals Connector (OSTI)

For instance, Los Alamos National Laboratory officials believe that using plutonium in NIF and achieving repeatable thermonuclear ignition is critical to NIF's value in weapons work, yet NIF has not been approved for plutonium use and its ability to achieve nuclear ignition is uncertain, the report says. ...

2001-06-11T23:59:59.000Z

332

BP Cherry Point Congeneration Project  

Broader source: Energy.gov (indexed) [DOE]

REVISED 404 (B) (1) REVISED 404 (B) (1) ALTERNATIVES ANALYSIS BP Cherry Point Cogeneration Project Prepared for: BP West Coast Products, LLC Revised June 29, 2004 1501 Fourth Avenue, Suite 1400 Seattle, WA 98101-1616 (206) 438-2700 33749546.05070 i TABLE OF CONTENTS Page 1.0 I NT RODUCTI ON ................................................................................................................... 1 2.0 P URPOSE AND NEE D .......................................................................................................... 1 2.1 RELIABILITY .................................................................................................... 1 2.2 COST-EFFECTIVENESS ................................................................................... 3 2.3 SIZE OF FACILITY............................................................................................

333

Orientifold points in M theory  

Science Journals Connector (OSTI)

We identify the lift to M theory of the four types of orientifold points, and show that they involve a chiral fermion on an orbifold fixed circle. From this lift, we compute the number of normalizable ground states for the SO(N) and Sp(N) supersymmetric quantum mechanics with sixteen supercharges. The results agree with known results obtained by the mass deformation method. The mass of the orientifold is identified with the Casimir energy.

Amihay Hanany; Barak Kol; Arvind Rajaraman

1999-01-01T23:59:59.000Z

334

Dominican Republic-Fast-Track Development of Transformative  

Open Energy Info (EERE)

Dominican Republic-Fast-Track Development of Transformative Dominican Republic-Fast-Track Development of Transformative Climate-Compatible Development Plans and Building of Regional and Local Capacities Jump to: navigation, search Logo: Dominican Republic-Fast-Track Development of Transformative Climate-Compatible Development Plans and Building of Regional and Local Capacities Name Dominican Republic-Fast-Track Development of Transformative Climate-Compatible Development Plans and Building of Regional and Local Capacities Agency/Company /Organization Coalition for Rainforest Nations Focus Area Economic Development Topics Low emission development planning, Policies/deployment programs Resource Type Guide/manual, Presentation Website http://www.rainforestcoalition Country Dominican Republic UN Region Caribbean

335

Measure, track, and benchmark | ENERGY STAR Buildings & Plants  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Measure, track, and benchmark Measure, track, and benchmark Secondary menu About us Press room Contact Us Portfolio Manager Login Facility owners and managers Existing buildings Commercial new construction Industrial energy management Small business Service providers Service and product providers Verify applications for ENERGY STAR certification Design commercial buildings Energy efficiency program administrators Commercial and industrial program sponsors Associations State and local governments Federal agencies Tools and resources Training In this section Get started with ENERGY STAR Make the business case Build an energy management program Measure, track, and benchmark Tools for benchmarking energy management practices Tools for tracking and benchmarking facility energy performance ENERGY STAR Energy Performance Indicators for plants

336

RE-Powering America’s Land Initiative Tracking Matrix  

Broader source: Energy.gov [DOE]

Using publically available information, the Environmental Protection Agency’s RE-Powering America’s Land Initiative project tracking matrix maintains a list of completed renewable energy...

337

PIA - Energy Inspector General Project Tracking System (EIGPT...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Project Tracking System (EIGPT) More Documents & Publications PIA - FOIAXpress PIA - INL SECURITY INFORMATION MANAGEMENT SYSTEM BUSINESS ENCLAVE PIA - INL PeopleSoft - Human...

338

PIA - Foreign Access Central Tracking System (FACTS) | Department...  

Broader source: Energy.gov (indexed) [DOE]

PIA - Foreign Access Central Tracking System (FACTS) More Documents & Publications PIA - INL SECURITY INFORMATION MANAGEMENT SYSTEM BUSINESS ENCLAVE PIA - INL PeopleSoft - Human...

339

PIA - HS Correspondence Tracking System (HSCT) | Department of...  

Office of Environmental Management (EM)

PIA - HS Correspondence Tracking System (HSCT) More Documents & Publications PIA - INL SECURITY INFORMATION MANAGEMENT SYSTEM BUSINESS ENCLAVE PIA - INL PeopleSoft - Human...

340

Los Alamos scientists detect and track single molecules with...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Nanotube "glowsticks" transform surface science tool kit Los Alamos scientists detect and track single molecules with nanoscale carbon cylinders Researchers have now shown that...

Note: This page contains sample records for the topic "tracking concentrator pointed" 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

Dominican Republic-Fast-Track Development of TransformativeClimate...  

Open Energy Info (EERE)

Finally, an additional goal is to return the experiences made to the international political level." References "Fast-Track Development of Transformative Climate-Compatible...

342

Control of Articulated Robot Arm by Eye Tracking.  

E-Print Network [OSTI]

??Eye tracking has many comprehensive achievements in the field of human computer interaction. Uses of human eyes as an alternative of hands are an innovative… (more)

Shahzad, Muhammad

2010-01-01T23:59:59.000Z

343

Thermal Load based Adaptive Tracking for Flat Plate Solar Collectors  

Science Journals Connector (OSTI)

Abstract The energy output of solar-thermal systems using flat plate collectors can be improved by tracking. Tracking is well known as a path for increasing the amount of solar radiation received by the collector; additionally the paper proposes a new concept that considers the inverse tracking as a viable option for protecting the collectors against overheating. An analysis of the thermal energy output and conversion efficiency is done considering forward tracking in three different days with different radiation profile (cloudy, sunny and mixed days), followed by an analysis of the inverse tracking concept. The in-field data show that there is a limiting angle below which inverse tracking is not effective and this value is estimated at 40° as compared with the optimal orientation. A logical scheme is proposed based on four different programs for forward tracking, inverse tracking, maximum inverse tracking or fixing the collector; this decisional scheme covers a broad range of functional situations having as central concept the production of thermal energy only when needed, for satisfying the demand, decreasing the energy consumption for forced circulation and supporting the systems reliability and safety.

Mircea Neagoe; Ion Visa; Bogdan G. Burduhos; Macedon D. Moldovan

2014-01-01T23:59:59.000Z

344

TEAPOT: A thin element accelerator program for optics and tracking  

SciTech Connect (OSTI)

The program TEAPOT is described. It is intended for fast particle tracking in an accelerator with magnet errors and misalignments. A realistic lattice (Standard Input Format) is first mechanically translated into an acceptably similar lattice containing only thin elements. Tracking in that lattice is fast and exact. This procedure of exact tracking in an approximate lattice can be contrasted with approximate tracking in an exact'' lattice as is performed in existing programs. A full Twiss analysis is performed and there are provisions for the compensation of error-induced coupling, tune-shifts and chromaticity shifts.

Schachinger, L.; Talman, R.

1985-12-01T23:59:59.000Z

345

Corrective Action Tracking System User's Guide | Department of...  

Office of Environmental Management (EM)

September 07, 2004 Corrective Action Tracking System (CATS) User's Guide for Direct Web Access The Department of Energy (DOE) Corrective Action Management Program (CAMP)...

346

Tracking Multiple Topics for Finding Interesting Articles  

SciTech Connect (OSTI)

We introduce multiple topic tracking (MTT) for iScore to better recommend news articles for users with multiple interests and to address changes in user interests over time. As an extension of the basic Rocchio algorithm, traditional topic detection and tracking, and single-pass clustering, MTT maintains multiple interest profiles to identify interesting articles for a specific user given user-feedback. Focusing on only interesting topics enables iScore to discard useless profiles to address changes in user interests and to achieve a balance between resource consumption and classification accuracy. iScore is able to achieve higher quality results than traditional methods such as the Rocchio algorithm. We identify several operating parameters that work well for MTT. Using the same parameters, we show that MTT alone yields high quality results for recommending interesting articles from several corpora. The inclusion of MTT improves iScore's performance by 25% in recommending news articles from the Yahoo! News RSS feeds and the TREC11 adaptive filter article collection. And through a small user study, we show that iScore can still perform well when only provided with little user feedback.

Pon, R K; Cardenas, A F; Buttler, D J; Critchlow, T J

2008-01-03T23:59:59.000Z

347

Tracking Multiple Topics for Finding Interesting Articles  

SciTech Connect (OSTI)

We introduce multiple topic tracking (MTT) for iScore to better recommend news articles for users with multiple interests and to address changes in user interests over time. As an extension of the basic Rocchio algorithm, traditional topic detection and tracking, and single-pass clustering, MTT maintains multiple interest profiles to identify interesting articles for a specific user given user-feedback. Focusing on only interesting topics enables iScore to discard useless profiles to address changes in user interests and to achieve a balance between resource consumption and classification accuracy. Also by relating a topic's interestingness to an article's interestingness, iScore is able to achieve higher quality results than traditional methods such as the Rocchio algorithm. We identify several operating parameters that work well for MTT. Using the same parameters, we show that MTT alone yields high quality results for recommending interesting articles from several corpora. The inclusion of MTT improves iScore's performance by 9% to 14% in recommending news articles from the Yahoo! News RSS feeds and the TREC11 adaptive filter article collection. And through a small user study, we show that iScore can still perform well when only provided with little user feedback.

Pon, R K; Cardenas, A F; Buttler, D J; Critchlow, T J

2007-02-15T23:59:59.000Z

348

Sensor Data Processing for Tracking Underwater Threats Using Terascale Optical Core Devices  

SciTech Connect (OSTI)

A critical aspect of littoral surveillance (including port protection) involves the localization and tracking of underwater threats such as manned or unmanned autonomous underwater vehicles. In this article, we present a methodology for locating underwater threat sources from uncertain sensor network data, and illustrate the threat tracking aspects using active sonars in a matched filter framework. The novelty of the latter paradigm lies in its implementation on a tera-scale optical core processor, EnLight , recently introduced by Lenslet Laboratories. This processor is optimized for array operations, which it performs in a fixed point arithmetic architecture at tera-scale throughput. Using the EnLight 64 prototype processor, our results (i) illustrate the ability to reach a robust tracking accuracy, and (ii) demonstrate that a considerable speed-up (a factor of over 13,000) can be achieved when compared to an Intel XeonTM processor in the computation of sets of 80K-sample complex Fourier transforms that are associated with our matched filter techniques.

Barhen, Jacob [ORNL; Imam, Neena [ORNL

2009-01-01T23:59:59.000Z

349

Design and characterization of the SiPM tracking system of the NEXT-100 demonstrator  

E-Print Network [OSTI]

NEXT-100 is a new experiment to search for neutrinoless double-beta decay of the Xe-136 isotope using a TPC filled with a 100 kg of high-pressure gaseous xenon with 90% isotopic enrichment. The experiment will take place at the Laboratorio Subterr\\'aneo de Canfranc (LSC), Spain. NEXT-100 uses electroluminescence (EL) technology for high energy resolution measurements. The gaseous xenon in the TPC allows additionally to record the tracks of the two beta particles, expected to have up to 30 cm length at 10 bar pressure. A full 3D sampling of the space points along the event tracks, using an optical readout system of the EL light, enables the identification of the double-beta events by means of a pattern recognition algorithm. In this paper, the SiPM-based tracking concept of NEXT-100 and its implementation in the demonstrator prototype NEXT-DEMO are presented. The characterization of the SiPM system and its readout electronics are described and shown to meet the experiment's requirements for the optimal recordi...

Álvarez, V; Borges, F I G M; Cárcel, S; Carmona, J M; Castel, J; Catalá, J M; Cebrián, S; Cervera, A; Chan, D; Conde, C A N; Dafni, T; Dias, T H V T; Díaz, J; Egorov, M; Esteve, R; Evtoukhovitch, P; Fernandes, L M P; Ferrario, P; Ferreira, A L; Ferrer-Ribas, E; Freitas, E D C; Garcia, A N C; Gehman, V M; Gil, A; Giomataris, I; Goldschmidt, A; Gómez, H; Gómez-Cadenas, J J; González, K; González-Díaz, D; Gutiérrez, R M; Hauptman, J; Morata, J A Hernando; Herrera, D C; Herrero, V; Iguaz, F J; Irastorza, I G; Kalinnikov, V; Kiang, D; Labarga, L; Liubarsky, I; Lopes, J A M; Lorca, D; Losada, M; Luzón, G; Marí, A; Martín-Albo, J; Martínez, A; Miller, T; Moiseenko, A; Monrabal, F; Monteiro, C M B; Monzó, J M; Mora, F J; Moutinho, L M; Vidal, J Muñoz; da Luz, H Natal; Navarro, G; Nebot, M; Nygren, D; Oliveira, C A B; Palma, R; Pérez, J; Aparicio, J L Pérez; Renner, J; Ripoll, L; Rodríguez, A; Rodríguez, J; Santos, F P; Santos, J M F dos; Segui, L; Serra, L; Shuman, D; Sofka, C; Sorel, M; Toledo, J F; Tomás, A; Torrent, J; Tsamalaidze, Z; Vázquez, D; Velicheva, E; Veloso, J F C A; Villar, J A; Webb, R C; Weber, T; White, J; Yahlali, N

2012-01-01T23:59:59.000Z

350

Concentrating Solar Power Tower System Basics | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Concentrating Solar Power Tower System Basics Concentrating Solar Power Tower System Basics Concentrating Solar Power Tower System Basics August 20, 2013 - 5:06pm Addthis In power tower concentrating solar power systems, numerous large, flat, sun-tracking mirrors, known as heliostats, focus sunlight onto a receiver at the top of a tall tower. A heat-transfer fluid heated in the receiver is used to generate steam, which, in turn, is used in a conventional turbine generator to produce electricity. Some power towers use water/steam as the heat-transfer fluid. Other advanced designs are experimenting with molten nitrate salt because of its superior heat-transfer and energy-storage capabilities. Individual commercial plants can be sized to produce up to 200 megawatts of electricity. Illustration of a power tower power plant. Sunlight is shown reflecting off a series of heliostats surrounding the tower and onto the receiver at the top of the tower. The hot heat-transfer fluid exiting from the receiver flows down the tower, into a feedwater reheater, and then into a turbine, which generates electricity that is fed into the power grid. The cool heat-transfer fluid exiting the turbine flows into a steam condenser to be cooled and sent back up the tower to the receiver.

351

Field's Point Wastewater Treatment Facility (Narragansett Bay...  

Open Energy Info (EERE)

Field's Point Wastewater Treatment Facility (Narragansett Bay Commission) Jump to: navigation, search Name Field's Point Wastewater Treatment Facility (Narragansett Bay Commission)...

352

ChargePoint America | Department of Energy  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

ChargePoint America ChargePoint America 2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting...

353

Starting Points | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

(M&O) Contract Competition Starting Points Starting Points Kansas City Plant Related Web Pages Summary Kansas City Plant Home Page Kansas City Plant Contracts DOE Directives...

354

27. 5-percent silicon concentrator solar cells  

SciTech Connect (OSTI)

Recent advances in silicon solar cells using the backside point-contact configuration have been extended resulting in 27.5-percent efficiencies at 10 W/sq cm (100 suns, 24 C), making these the most efficient solar cells reported to date. The one-sun efficiencies under an AM1.5 spectrum normalized to 100 mW/sq cm are 22 percent at 24 C based on the design area of the concentrator cell. The improvements reported here are largely due to the incorportation of optical light trapping to enhance the absorption of weakly absorbed near bandgap light. These results approach the projected efficiencies for a mature technology which are 23-24 percent at one sun and 29 percent in the 100-350-sun (10-35 W/sq cm) range. 10 references.

Sinton, R.A.; Kwark, Y.; Gan, J.Y.; Swanson, R.M.

1986-10-01T23:59:59.000Z

355

ARM - Measurement - Organic Carbon Concentration  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

govMeasurementsOrganic Carbon Concentration govMeasurementsOrganic Carbon Concentration ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Organic Carbon Concentration The concentration of carbon bound in organic compounds. Categories Aerosols Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments ACSM : Aerosol Chemical Speciation Monitor Field Campaign Instruments AEROSCARBON : Aerosol Carbon Analyzer AEROSMASSSPEC : Aerosol Mass Spectrometer Datastreams AOS : Aerosol Observing System Datastreams

356

Reversible concentric ring microfluidic interconnects  

E-Print Network [OSTI]

A reversible, Chip-to-Chip microfluidic interconnect was designed for use in high temperature, high pressure applications such as chemical microreactor systems. The interconnect uses two sets of concentric, interlocking ...

Thompson, Mary Kathryn, 1980-

2004-01-01T23:59:59.000Z

357

Concentrated Thermoelectric Power | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Concentrated Thermoelectric Power This fact sheet describes a concentrated solar hydroelectric power project awarded under the DOE's 2012 SunShot Concentrating Solar Power R&D...

358

NREL: Concentrating Solar Power Research - Concentrating Solar Power  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Concentrating Solar Power Resource Maps Concentrating Solar Power Resource Maps These direct-normal solar radiation maps-filtered by solar resource and land availability-identify the most economically suitable lands available for deploying of large-scale concentrating solar power plants in the southwestern United States. Each of the following seven states, as well as the southwestern U.S. region, has two maps: the left and right maps represent analyses excluding land with slopes >1% and >3%, respectively. Lower-resolution jpg versions are available below; much higher-resolution pdf files, suitable for plotting large-scale posters, can be requested. You can also access an unfiltered direct-normal solar radiation map of the southwestern United States. Download Adobe Reader. Southwestern U.S.

359

Experimental Validation of an Algorithm for Cooperative Boundary Tracking  

E-Print Network [OSTI]

blooms [2,11], chemical plumes [5,8], and adaptive ocean sampling [7], to future applications including oil spills or hazardous chemicals. Automated algorithms for boundary tracking are the subject tracking using a platform of vehicles that possess adequate sensors for measuring spatial gradients

Soatto, Stefano

360

Cooperative Vision Based Estimation and Tracking Using Multiple UAVs  

E-Print Network [OSTI]

Cooperative Vision Based Estimation and Tracking Using Multiple UAVs Brett Bethke, Mario Valenti. Unmanned aerial vehicles (UAVs) are excellent platforms for detecting and tracking objects of interest to give better results than could be achieved with a single UAV, while being robust to failures. In addi

How, Jonathan P.

Note: This page contains sample records for the topic "tracking concentrator pointed" 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

High-Frequency Skywave Radar Track of Tropical Storm Debra  

Science Journals Connector (OSTI)

Tropical Storm Debra was tracked over a 31 h period in the Gulf of Mexico using the Wide Aperture Research Facility (WARF) high-frequency (HF) skywave radar in California. In contrast to the first WARF skywave radar tracking experiment in which ...

Joseph W. Maresca Jr.; Christopher T. Carlson

1981-04-01T23:59:59.000Z

362

5. Silicon Vertex Tracker 5.1. Charged Particle Tracking  

E-Print Network [OSTI]

the SVT sensitive area down to 30 . The SVT must withstand 2 MRad of ionizing radiation. A radiation monitoring system capa- ble of aborting the beams is required. The ex- pected radiation dose is 1 Rad is desirable for tracks with a trans- verse momentum in the range 50­120 MeV/c. The standalone tracking

363

SunShot Award Helps Solar Tracking Company Expand Internationally  

Office of Energy Efficiency and Renewable Energy (EERE)

SunShot Incubator awardee QBotix, which harnesses the power of robotic tracking to optimize solar plant operation, is working to reduce the cost of photovoltaic (PV) tracking technology by consolidating many trackers into an individual robot that can travel from tracker to tracker to make adjustments.

364

GENETIC ALGORITHMS FOR A SINGLE-TRACK VEHICLE AUTONOMOUS PILOT  

E-Print Network [OSTI]

GENETIC ALGORITHMS FOR A SINGLE-TRACK VEHICLE AUTONOMOUS PILOT Dana Vrajitoru Intelligent Systems algorithms to an autonomous pilot designed for motorized single-track vehicles (motorcycles). The pilot contribute efficiently to configuring the autonomous pilot. Key Words Genetic algorithms, multi

Vrajitoru, Dana

365

Analysis of Solar Two Heliostat Tracking Error Sources  

SciTech Connect (OSTI)

This paper explores the geometrical errors that reduce heliostat tracking accuracy at Solar Two. The basic heliostat control architecture is described. Then, the three dominant error sources are described and their effect on heliostat tracking is visually illustrated. The strategy currently used to minimize, but not truly correct, these error sources is also shown. Finally, a novel approach to minimizing error is presented.

Jones, S.A.; Stone, K.W.

1999-01-28T23:59:59.000Z

366

Analysis of Solar Two heliostat tracking error sources  

SciTech Connect (OSTI)

This paper explores the geometrical errors that reduce heliostat tracking accuracy at Solar Two. The basic heliostat control architecture is described. Then, the three dominant error sources are described and their effect on heliostat tracking is visually illustrated. The strategy currently used to minimize, but not truly correct, these error sources is also shown. Finally, a novel approach to minimizing error is presented.

Stone, K.W.; Jones, S.A.

1999-07-01T23:59:59.000Z

367

Environmental Boundary Tracking and Estimation Using Multiple Autonomous Vehicles  

E-Print Network [OSTI]

and Andrea L. Bertozzi Abstract-- In this paper, we develop a framework for envi- ronmental boundary tracking from multiple sensing vehicles. For each vehicle, a tracking algorithm is developed based on Page, harmful algae blooms, wild fire spreading, temperature and salinity distribution in the ocean

Soatto, Stefano

368

Gross Energy Cost of Horizontal Treadmill and Track Running  

Science Journals Connector (OSTI)

The gross energy cost of treadmill and track running is re-...2...(ml/kg/min) = 2.209 + 3.163 speed (km/h) for 130 subjects (trained and untrained males and females) and 10 treadmill studies. On the track, wind r...

Dr L. Léger; D. Mercier

1984-07-01T23:59:59.000Z

369

FORENSIC TRACKING AND MOBILITY PREDICTION IN VEHICULAR NETWORKS  

E-Print Network [OSTI]

i #12;ii #12;Chapter 1 FORENSIC TRACKING AND MOBILITY PREDICTION IN VEHICULAR NETWORKS Saif Al been especially tailored for forensic analysis then propose several instances emulating different transportation means. We then use these models to build a full-fledged offline multi-modal forensic tracking sys

Sheldon, Nathan D.

370

Microsoft Word - Tracking Subgroup Minutes_030606.doc  

Broader source: Energy.gov (indexed) [DOE]

5/2006 1 5/2006 1 TEC Rail Topic Group, Tracking Subgroup Conference Call DRAFT Monday, March 6, 2006 3 p.m. to 4 p.m. EST Group Co-Chairs: Sarah Wochos (CSG) and Bill Mackie (Western Governors Association) Participants: Joe Bell (DHS), Scott Ramsay (State of Wyoming), Marsha Keister (INEEL), Cort Richardson (CSG), Dan Johnson (State of Washington) DOE Support contractors also participated on the call. Action Items: Responsible Party Action to be Taken All Participants Review questions and provide any comments to Sarah Wochos by Thursday, March 9, 2006 Sarah Wochos Make the changes to the questionnaire and create a short discussion agenda for the March TEC meeting Summary: The purpose of this call was to finalize the questions included in the Security Topic

371

Tracking New Coal-Fired Power Plants  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

New Coal-Fired Power Plants New Coal-Fired Power Plants (data update 1/13/2012) January 13, 2012 National Energy Technology Laboratory Office of Strategic Energy Analysis & Planning Erik Shuster 2 Tracking New Coal-Fired Power Plants This report is intended to provide an overview of proposed new coal-fired power plants that are under development. This report may not represent all possible plants under consideration but is intended to illustrate the potential that exists for installation of new coal-fired power plants. Additional perspective has been added for non-coal-fired generation additions in the U.S. and coal-fired power plant activity in China. Experience has shown that public announcements of power plant developments do not provide an accurate representation of eventually

372

‘‘Fast Track’’ nuclear thermal propulsion concept  

Science Journals Connector (OSTI)

The objective of the Space Exploration Initiative (‘‘America at the Threshold... ’’ 1991) is the exploration of Mars by man in the second decade of the 21st century. The NASA ‘‘Fast Track’’ approach (NASA?LeRC Presentation 1992) could accelerate the manned exploration of Mars to 2007. NERVA?derived nuclear propulsion represents a viable near?term technology approach to accomplish the accelerated schedule. Key milestones in the progression to the manned Mars mission are (1) demonstration of TRL?6 for the man?rateable system by 1999 (2) a robotic lunar mission by 2000 (3) the first cargo mission to Mars by 2005 and (4) the piloted Mars mission in 2007. The Rocketdyne?Westinghouse concept for nuclear thermal propulsion to achieve these milestones combines the nuclear reactor technology of the Rover/NERVA programs and the state?of?the?art hardware designs from hydrogen?fueled rocket engine successes like the Space Shuttle Main Engine (SSME).

Richard A. Johnson; Herbert R. Zweig; Martin H. Cooper; Jack Wett Jr.

1993-01-01T23:59:59.000Z

373

Fast Track'' nuclear thermal propulsion concept  

SciTech Connect (OSTI)

The objective of the Space Exploration Initiative ( America at the Threshold...,'' 1991) is the exploration of Mars by man in the second decade of the 21st century. The NASA Fast Track'' approach (NASA-LeRC Presentation, 1992) could accelerate the manned exploration of Mars to 2007. NERVA-derived nuclear propulsion represents a viable near-term technology approach to accomplish the accelerated schedule. Key milestones in the progression to the manned Mars mission are (1) demonstration of TRL-6 for the man-rateable system by 1999, (2) a robotic lunar mission by 2000, (3) the first cargo mission to Mars by 2005, and (4) the piloted Mars mission in 2007. The Rocketdyne-Westinghouse concept for nuclear thermal propulsion to achieve these milestones combines the nuclear reactor technology of the Rover/NERVA programs and the state-of-the-art hardware designs from hydrogen-fueled rocket engine successes like the Space Shuttle Main Engine (SSME).

Johnson, R.A.; Zweig, H.R. (Rocketdyne Division, Rockwell International Corporation, 6633 Canoga Avenue, P.O. Box 7922, Canoga Park, California 91309-7922 (United States)); Cooper, M.H.; Wett, J. Jr. (Westinghouse Electric Corporation, Post Office Box 158, Madison, Pennsylvania 15663 (United States))

1993-01-10T23:59:59.000Z

374

Muon Tracking to Detect Special Nuclear Materials  

SciTech Connect (OSTI)

Previous experiments have proven that nuclear assemblies can be imaged and identified inside of shipping containers using vertical trajectory cosmic-ray muons with two-sided imaging. These experiments have further demonstrated that nuclear assemblies can be identified by detecting fission products in coincidence with tracked muons. By developing these technologies, advanced sensors can be designed for a variety of warhead monitoring and detection applications. The focus of this project is to develop tomographic-mode imaging using near-horizontal trajectory muons in conjunction with secondary particle detectors. This will allow imaging in-situ without the need to relocate the objects and will enable differentiation of special nuclear material (SNM) from other high-Z materials.

Schwellenbach, D. [NSTec; Dreesen, W. [NSTec; Green, J. A. [NSTec; Tibbitts, A. [NSTec; Schotik, G. [NSTec; Borozdin, K. [LANL; Bacon, J. [LANL; Midera, H. [LANL; Milner, C. [LANL; Morris, C. [LANL; Perry, J. [LANL; Barrett, S. [UW; Perry, K. [UW; Scott, A. [UW; Wright, C. [UW; Aberle, D. [NSTec

2013-03-18T23:59:59.000Z

375

Track A - Energy Systems Innovations | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Track A - Energy Systems Innovations Track A - Energy Systems Innovations Track A - Energy Systems Innovations Presentations from Track A, Energy Systems Innovations, of the U.S. Department of Energy Building America program's 2012 Residential Energy Efficiency Stakeholder Meeting are provided below as Adobe Acrobat PDFs. These presentations for this track covered the following topics: Space Conditioning and Hot Water Systems; Options for Insulating Foundations; Mini-split Systems; Heat Pump Water Heaters; Hydronic Heating Control Strategies; and Exterior Insulation Breakthroughs. contractor_accept.pdf testing_water_heating.pdf combined_tankless_wh.pdf upgrade_below_grade.pdf assessing_priorities.pdf industry_perspective.pdf ductless_hp_factory.pdf ductless_heat_pumps_nw.pdf field_eval_hpwh.pdf

376

Track B - Critical Guidance for Peak Performance Homes | Department of  

Broader source: Energy.gov (indexed) [DOE]

Track B - Critical Guidance for Peak Performance Homes Track B - Critical Guidance for Peak Performance Homes Track B - Critical Guidance for Peak Performance Homes Presentations from Track B, Critical Guidance for Peak Performance Homes of the U.S. Department of Energy Building America program's 2012 Residential Energy Efficiency Stakeholder Meeting are provided below as Adobe Acrobat PDFs. These presentations for this track covered the following topics: Ventilation Strategies in High Performance Homes; Combustion Safety in Tight Houses; Implementation Program Case Studies; Field Testing from Start to Finish; and Humidity Control and Analysis. why_we_ventilate.pdf formaldehyde_new_homes.pdf whole_bldg_ventilation.pdf combustion_safety_codes.pdf combustion_diagnostics.pdf test_protocols_results.pdf utility_incentive_programs.pdf

377

Thailand-Measurement and Performance Tracking (MAPT) Initiative | Open  

Open Energy Info (EERE)

Thailand-Measurement and Performance Tracking (MAPT) Initiative Thailand-Measurement and Performance Tracking (MAPT) Initiative Jump to: navigation, search Logo: Thailand-WRI Measurement and Performance Tracking (MAPT) Project Name Thailand-WRI Measurement and Performance Tracking (MAPT) Project Agency/Company /Organization World Resources Institute (WRI) Sector Climate, Energy Topics Background analysis, Baseline projection, Low emission development planning, -NAMA Resource Type Case studies/examples, Guide/manual, Lessons learned/best practices, Training materials, Workshop Website http://www.wri.org/mapt Program Start 2011 Country Thailand South-Eastern Asia References Measurement and Performance Tracking (MAPT) Project[1] Contents 1 Overview 2 Resources 3 Partners 4 References Overview Developing countries are increasingly undertaking mitigation efforts in

378

Tracking Santa: An Interview with the Head Researcher | Department of  

Broader source: Energy.gov (indexed) [DOE]

Tracking Santa: An Interview with the Head Researcher Tracking Santa: An Interview with the Head Researcher Tracking Santa: An Interview with the Head Researcher December 23, 2010 - 11:12am Addthis Tracking Santa: An Interview with the Head Researcher Ginny Simmons Ginny Simmons Former Managing Editor for Energy.gov, Office of Public Affairs What does this mean for me? You'll be able to start monitoring St. Nick's journey starting at 6 AM ET on Christmas Eve. Every year since 1998, the Department of Energy's Los Alamos lab has been using state of the art technology to track Santa Claus as he circles the globe the night before Christmas. You'll be able to start monitoring St. Nick's journey here starting at 6 AM ET on Christmas Eve. This week, I got a chance to talk to Santa Tracker Head Researcher (and Cibola Flight Experiment Project Leader) Diane Roussel-Dupre to get a

379

Track C - Market-Driven Research Solutions | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Track C - Market-Driven Research Solutions Track C - Market-Driven Research Solutions Track C - Market-Driven Research Solutions Presentations from Track C, Market-Driven Research Solutions of the U.S. Department of Energy Building America program's 2012 Residential Energy Efficiency Stakeholder Meeting are provided below as Adobe Acrobat PDFs. These presentations for this track covered the following topics: Outreach Initiatives; Case Studies; Technical Approach to Home Energy Management; Valuing Energy Efficiency; Software Accuracy Issues in Poorly Insulated, Leaky Homes; and New Additions to Codes. customer_focused_deploy.pdf building_america_pubs.pdf public_private_media.pdf higher_perf_cost_neutral.pdf cnt_energy_savers.pdf home_retrofits_southeast.pdf brillion_technology.pdf nonintrusive_load_monitor.pdf

380

India-Measurement and Performance Tracking (MAPT) Initiative | Open Energy  

Open Energy Info (EERE)

Measurement and Performance Tracking (MAPT) Initiative Measurement and Performance Tracking (MAPT) Initiative Jump to: navigation, search Logo: India-WRI Measurement and Performance Tracking (MAPT) Project Name India-WRI Measurement and Performance Tracking (MAPT) Project Agency/Company /Organization World Resources Institute (WRI) Sector Climate, Energy Topics Background analysis, Baseline projection, Low emission development planning, -NAMA Resource Type Case studies/examples, Guide/manual, Lessons learned/best practices, Training materials, Workshop Website http://www.wri.org/mapt Program Start 2011 Country India Southern Asia References Measurement and Performance Tracking (MAPT) Project[1] Contents 1 Overview 2 Resources 3 Partners 4 References Overview Developing countries are increasingly undertaking mitigation efforts in

Note: This page contains sample records for the topic "tracking concentrator pointed" 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

Corrective Action Tracking System User's Guide | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Corrective Action Tracking System User's Guide Corrective Action Tracking System User's Guide Corrective Action Tracking System User's Guide September 07, 2004 Corrective Action Tracking System (CATS) User's Guide for Direct Web Access The Department of Energy (DOE) Corrective Action Management Program (CAMP) prescribes process requirements and responsibilities for DOE line managers to develop and implement corrective actions to effectively resolve safety findings arising from: Findings as identified by the Office of Independent Oversight and Performance Assurance Environment, Safety and Health and Emergency Management assessments; Judgments of Need as identified by Type A accident investigations: Other sources as directed by the Secretary or Deputy Secretary, including crosscutting safety findings. Corrective Action Tracking System User's Guide

382

Corrective Action Tracking System User's Guide | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Corrective Action Tracking System User's Guide Corrective Action Tracking System User's Guide Corrective Action Tracking System User's Guide September 07, 2004 Corrective Action Tracking System (CATS) User's Guide for Direct Web Access The Department of Energy (DOE) Corrective Action Management Program (CAMP) prescribes process requirements and responsibilities for DOE line managers to develop and implement corrective actions to effectively resolve safety findings arising from: Findings as identified by the Office of Independent Oversight and Performance Assurance Environment, Safety and Health and Emergency Management assessments; Judgments of Need as identified by Type A accident investigations: Other sources as directed by the Secretary or Deputy Secretary, including crosscutting safety findings. Corrective Action Tracking System User's Guide

383

Corrective Action Tracking System (CATS) | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Corrective Action Tracking System (CATS) Corrective Action Tracking System (CATS) Corrective Action Tracking System (CATS) The CATS web-based database is used to enter, track, and report the status of corrective actions developed and implemented in the DOE Corrective Action Management Program (CAMP) to effectively resolve and prevent recurrence of reported findings. The web-site includes guidance for accessing, reviewing and editing the database. NOTICE: Because of the potential sensitive nature of some information in Corrective Action Plans (CAPs) that is placed in the Department of Energy (DOE) Corrective Action Tracking System (CATS), DOE is limiting access to the CATS web site. Members of the public cannot access the CATS web site at this time. DOE regrets any inconvenience caused by this decision in

384

Mass Tracking System Software [Nuclear Waste Management using  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Mass Tracking System Mass Tracking System Software Nuclear Fuel Cycle and Waste Management Technologies Overview Modeling and analysis Unit Process Modeling Mass Tracking System Software Waste Form Performance Modeling Safety Analysis, Hazard and Risk Evaluations Development, Design, Operation Overview Systems and Components Development Expertise System Engineering Design Other Major Programs Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE Division on Flickr Nuclear Waste Management using Electrometallurgical Technology Mass Tracking System Software Bookmark and Share The NE Division has developed a computer-based Mass Tracking (MTG) system, which is used at the Idaho National Laboratory Fuel Conditioning Facility (FCF) to maintain a real-time accounting of the inventory of containers and

385

DOE Seeks Small Businesses for Waste Tracking Contract | Department of  

Broader source: Energy.gov (indexed) [DOE]

Seeks Small Businesses for Waste Tracking Contract Seeks Small Businesses for Waste Tracking Contract DOE Seeks Small Businesses for Waste Tracking Contract July 25, 2013 - 12:00pm Addthis Media Contact Bill Taylor, 803-952-8564 bill.taylor@srs.gov Cincinnati - The U.S. Department of Energy (DOE) today issued a Request for Proposal (RFP) seeking Small Business Administration certified (8(a)) small business firms to provide DOE Transportation Tracking and Communications (TRANSCOM) Technical Support Services. A Requirements Contract will be awarded as a result of this RFP. The contract period of performance will be one year with four one-year option periods. The DOE TRANSCOM system continuously monitors and tracks active shipments of defense related spent nuclear fuel, radioactive/non-radioactive, hazardous, and transuranic (TRU) waste to and from DOE facilities. The

386

South Africa-Measurement and Performance Tracking (MAPT) Initiative | Open  

Open Energy Info (EERE)

South Africa-Measurement and Performance Tracking (MAPT) Initiative South Africa-Measurement and Performance Tracking (MAPT) Initiative Jump to: navigation, search Logo: South Africa-WRI Measurement and Performance Tracking (MAPT) Project Name South Africa-WRI Measurement and Performance Tracking (MAPT) Project Agency/Company /Organization World Resources Institute (WRI) Sector Climate, Energy Topics Background analysis, Baseline projection, Low emission development planning, -NAMA Resource Type Case studies/examples, Guide/manual, Lessons learned/best practices, Training materials, Workshop Website http://www.wri.org/mapt Program Start 2011 Country South Africa Southern Africa References Measurement and Performance Tracking (MAPT) Project[1] Contents 1 Overview 2 Resources 3 Partners 4 References Overview Developing countries are increasingly undertaking mitigation efforts in

387

Brazil-Measurement and Performance Tracking (MAPT) Initiative | Open Energy  

Open Energy Info (EERE)

Brazil-Measurement and Performance Tracking (MAPT) Initiative Brazil-Measurement and Performance Tracking (MAPT) Initiative Jump to: navigation, search Logo: Brazil-WRI Measurement and Performance Tracking (MAPT) Project Name Brazil-WRI Measurement and Performance Tracking (MAPT) Project Agency/Company /Organization World Resources Institute (WRI) Sector Climate, Energy Topics Background analysis, Baseline projection, Low emission development planning, -NAMA Resource Type Case studies/examples, Guide/manual, Lessons learned/best practices, Training materials, Workshop Website http://www.wri.org/mapt Program Start 2011 Country Brazil South America References Measurement and Performance Tracking (MAPT) Project[1] Contents 1 Overview 2 Resources 3 Partners 4 References Overview Developing countries are increasingly undertaking mitigation efforts in

388

NETL: News Release - Department of Energy Releases Updated Report Tracking  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Department of Energy Releases Updated Report Tracking Resurgence of Coal-Fired Power Plants Department of Energy Releases Updated Report Tracking Resurgence of Coal-Fired Power Plants Report Shows 151 Proposed and New Plants, 90 Gigawatts of Capacity by 2020 WASHINGTON, DC - A newly released Department of Energy report shows that many power producers are turning to coal as the most economic and abundant national resource for electricity generation. The report, titled Tracking New Coal-Fired Power Plants, was developed by the Office of Fossil Energy's National Energy Technology Laboratory (NETL) to provide a snapshot of coal's resurgence in the generation of electric power. The report was derived from a database that NETL maintains to track proposals for new coal-fired power plants. Created in 2002, the database is updated quarterly as new information is released and cataloged. The results contained in the database are derived from information publicly available from a variety of tracking organizations and news groups.

389

Colombia-Measurement and Performance Tracking (MAPT) Initiative | Open  

Open Energy Info (EERE)

Colombia-Measurement and Performance Tracking (MAPT) Initiative Colombia-Measurement and Performance Tracking (MAPT) Initiative Jump to: navigation, search Logo: Colombia-WRI Measurement and Performance Tracking (MAPT) Project Name Colombia-WRI Measurement and Performance Tracking (MAPT) Project Agency/Company /Organization World Resources Institute (WRI) Sector Climate, Energy Topics Background analysis, Baseline projection, Low emission development planning, -NAMA Resource Type Case studies/examples, Guide/manual, Lessons learned/best practices, Training materials, Workshop Website http://www.wri.org/mapt Program Start 2011 Country Colombia South America References Measurement and Performance Tracking (MAPT) Project[1] Contents 1 Overview 2 Resources 3 Partners 4 References Overview Developing countries are increasingly undertaking mitigation efforts in

390

Waste Shipment Tracking Technology Lowers Costs, Increases Efficiency |  

Broader source: Energy.gov (indexed) [DOE]

Shipment Tracking Technology Lowers Costs, Increases Shipment Tracking Technology Lowers Costs, Increases Efficiency Waste Shipment Tracking Technology Lowers Costs, Increases Efficiency February 27, 2013 - 12:00pm Addthis This graphic shows how the radiofrequency identification technology tracks and monitors packages in transport, in-transit stops and storage. This graphic shows how the radiofrequency identification technology tracks and monitors packages in transport, in-transit stops and storage. The technology developed by EM’s Office of Packaging and Transportation Packaging Certification Program technology development team was selected by the RFID Journal as the "Most Innovated Use of RFIDs.” Team members pictured here include Dr. John Lee, Dr. Yung Liu, Dr. Jim Shuler, Dr. Hanchung Tsai and John Anderson. Team members not pictured are Brian Craig and Dr. Kun Chen.

391

ARM - Measurement - Trace gas concentration  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

govMeasurementsTrace gas concentration govMeasurementsTrace gas concentration ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Trace gas concentration The amount per unit volume of trace gases other than carbon dioxide, ozone and water vapor, typically measured in conjunction with in situ aerosol measurements, e.g. carbon monoxide, nitrogen oxides, sulfur dioxide. Categories Atmospheric Carbon, Atmospheric State Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments CO : Carbon Monoxide Mixing Ratio System

392

A Bayesian Framework for Storm Tracking Using a Hidden-State Representation  

Science Journals Connector (OSTI)

A probabilistic tracking model is introduced that identifies storm tracks from feature vectors that are extracted from meteorological analysis data. The model assumes that the genesis and lysis times of each track are unknown and estimates their ...

Lucas Scharenbroich; Gudrun Magnusdottir; Padhraic Smyth; Hal Stern; Chia-chi Wang

2010-06-01T23:59:59.000Z

393

Energy 101: Concentrating Solar Power  

SciTech Connect (OSTI)

From towers to dishes to linear mirrors to troughs, concentrating solar power (CSP) technologies reflect and collect solar heat to generate electricity. A single CSP plant can generate enough power for about 90,000 homes. This video explains what CSP is, how it works, and how systems like parabolic troughs produce renewable power. For more information on the Office of Energy Efficiency and Renewable Energy's CSP research, see the Solar Energy Technology Program's Concentrating Solar Power Web page at http://www1.eere.energy.gov/solar/csp_program.html.

None

2010-01-01T23:59:59.000Z

394

Energy 101: Concentrating Solar Power  

ScienceCinema (OSTI)

From towers to dishes to linear mirrors to troughs, concentrating solar power (CSP) technologies reflect and collect solar heat to generate electricity. A single CSP plant can generate enough power for about 90,000 homes. This video explains what CSP is, how it works, and how systems like parabolic troughs produce renewable power. For more information on the Office of Energy Efficiency and Renewable Energy's CSP research, see the Solar Energy Technology Program's Concentrating Solar Power Web page at http://www1.eere.energy.gov/solar/csp_program.html.

None

2013-05-29T23:59:59.000Z

395

Sandia National Laboratories (SNL) and Oak Ridge National Laboratories (ORNL) joint development of SNL`s sample tracking, analysis and reporting (STAR) information system  

SciTech Connect (OSTI)

A comprehensive environmental sample management program allocates much of its resources to collecting, managing, and manipulating information. A computerized system that collects information at the field sampling point, tracks the sample to analytical labs and loads electronic data deliverables from these labs, while maintaining chain of custody and data integrity, is efficient and cost effective for providing consistent and accurate, legally defensible sample data. In June 1993, a team was formed to gather Sample Management Office requirements and begin development of a sample tracking system. This paper is an overview of experiences encountered when Sandia transferred and implemented sample software from the Waste Area Group (WAG6) at ORNL.

Fish, J.; Campbell, D.; Jenkins, B. [and others

1995-05-01T23:59:59.000Z

396

BP Cherry Point Cogeneration Project  

Broader source: Energy.gov (indexed) [DOE]

Final Environmental Impact Statement Final Environmental Impact Statement DOE/EIS-0349 Lead Agencies: Energy Facility Site Evaluation Council Bonneville Power Administration Cooperating Agency: U.S. Army Corps of Engineers August 2004 EFSEC Washington State Energy Facility Site Evaluation Council July 12, 2004 Dear Reader: Enclosed for your reference is the abbreviated Final Environmental Impact Statement (FEIS) for the proposed BP Cherry Point Cogeneration Project. This document is designed to correct information and further explain what was provided in the Draft Environmental Impact Statement (DEIS). The proponent, BP West Coast Products, LLC, has requested to build a 720-megawatt gas-fired combined cycle cogeneration facility in Whatcom County, Washington, and interconnect this facility into the regional

397

Advanced solar concentrator development in the United States  

SciTech Connect (OSTI)

Sandia National Laboratories is the lead laboratory for the United States Department of Energy's program to develop, build, and test advanced solar concentrators that are low in cost, have high performance, and demonstrate a long lifetime. The principal focus of DOE's concentrator program is on the development of heliostats for central receiver power plants and point focus parabolic dishes for use with a 25-kWe Stirling engine. The status and future plans of DOE's program in each area are reviewed. 29 refs., 7 figs.

Alpert, D.J.

1990-01-01T23:59:59.000Z

398

The upgrade of the ALICE Inner Tracking System  

E-Print Network [OSTI]

ALICE is a general purpose experiment dedicated to the study of nucleus-nucleus collisions at LHC. After more than 3 years of successful operation, an upgrade of the apparatus during the second long shutdown of LHC (LS2) in 2017/18 is in preparation. One of the major goals of the proposed upgrade is to extend the physics reach for rare probes at low transverse momentum. The reconstruction of the rare probes requires a precise determination of the primary and secondary vertices that is performed in ALICE by the Inner Tracking System (ITS). The present ITS made of 6 layers of three technologies of silicon devices allows, for example, to reconstruct D mesons with the transverse momentum down to ~2 GeV/c. Further extension of this range towards lower pT requires the installation of the new ITS consisting of 7 layers of silicon detectors with significantly better single point resolution and reduced material budget. It is expected that the new system will allow to improve the impact parameter resolution by a factor of ~3. Moreover, the data rate capability of the upgraded ITS should be significantly improved in order to exploit the full expected LHC lead-lead interaction rate of 50 kHz, almost two orders of magnitude above the present readout rate. The present contribution describes first the ITS upgrade requirements followed by the conceptual design of the new system and its expected performance. Secondly, an overview of the different R&D activities from the concept towards the final detector is given.

Serhiy Senyukov for the ALICE-ITS collaboration

2013-04-04T23:59:59.000Z

399

Field Demonstration of an Automated Heliostat Tracking Correction Method  

Science Journals Connector (OSTI)

Abstract This study provides a demonstration of an eight-parameter heliostat tracking-error correction method applied to heliostats at the National Solar Thermal Test Facility at Sandia National Laboratories. This method models the non-random physical error sources that arise from imperfect mount fabrication and installation processes. Previous work demonstrated this method for a single heliostat over a one-month period [1]. This study extends the previous work by expanding the number of heliostats modeled and tested to over 200. The duration over which errors were collected and modeled spanned 7 months. Smaller subsets of heliostats were observed and tested over an even longer, 10 month period. Error data was obtained by bringing heliostat beams (one by one) to a surveyed target on the Solar Tower and recording the measured elevation and azimuthal offsets. Beam position was determined by the centroid of the intensity image. Using automated sequencing, we were able to limit the time to process a heliostat to ?32 seconds. This allowed us to process the entire 200 heliostat field in just 2 full days (weather permitting). These 2- day collections were performed about once every 2-3 months, to cover the full annual range of motion. All error data were automatically collected, time tagged and synchronized, in real-time. The error data were then converted, by a post-processor, to updated model parameters. The updated model data were subsequently uploaded to the heliostat field for model performance testing. In this way, almost 50,000 error observations were collected for 200 heliostats during the course of the study. In addition, 19,000 model performance observations were also recorded. Initial results indicate this method was able to halve the RMS average pointing error from 1.5 mrad to 0.78 mrad across the field of 200 heliostats.

E.J. Smith; C.K. Ho

2014-01-01T23:59:59.000Z

400

Parallel Tracks: American Transcontinentalism and the Specter of Canada  

E-Print Network [OSTI]

of Far Western Indian policy could point to British Columbiaeven to the point of protecting Indian women and children

Eigen, Kathryn

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "tracking concentrator pointed" 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

ACCELERATED IMPROVEMENT A CONCENTRATED APPROACH  

E-Print Network [OSTI]

ACCELERATED IMPROVEMENT A CONCENTRATED APPROACH FOR CONTINUOUS IMPROVEMENT #12;Accelerated.quality.wisc.edu O F F I C E O F Q U A L I T Y I M P R O V E M E N T Accelerated Improvement This guide to improving resources. You will find helpful information needed to conduct an Accelerated Improvement project

Shapiro, Vadim

402

Physics and Astronomy Geophysics Concentration  

E-Print Network [OSTI]

Physics and Astronomy Geophysics Concentration Strongly recommended courses Credits Term Dept. to Geophysics 3 PHY 3230 Thermal Physics 3 CHE 1101 Introductory Chemistry - I 3 CHE 1110 Introductory Chemistry Laboratory - I 1 GLY 1101 Intro. to Physical Geology 4 GLY 2250 Evolution of the Earth 4 GLY 4705 Adv

Thaxton, Christopher S.

403

SYSTEM OPTIMIZTION OF HOT WATER CONCENTRATED SOLAR THERMOELECTRIC GENERATION  

E-Print Network [OSTI]

In this report, we describe the design of a concentrated solar thermoelectric (TE) system which can provide both electricity and hot water. Today’s thermoelectric materials have a relatively low efficiency (~6 % for temperature difference across the thermoelement on the order of 300 o C). However since thermoelectrics don’t need their cold side to be near room temperature, (in another word, one can chose the particular thermoelectric material to match to the operational temperature) it is possible to use the waste heat to provide hot water and this makes the overall efficiency of the combined system to be quite high. A key factor in the optimization of the thermoelectric module is the thermal impedance matching with the incident solar radiation, and also with the hot water heat exchanger on the cold side of the thermoelectric module. We have developed an analytic model for the whole system and optimized each component in order to minimize the material cost. TE element fill factor is found to be an important parameter to optimize at low solar concentrations (generated per mass of the thermoelectric elements. Similarly the co-optimization of the microchannel heat exchanger and the TE module can be used to minimize the amount of material in the heat exchanger and the pumping power required for forced convection liquid cooling. Changing the amount of solar concentration, changes the input heat flux and this is another parameter that can be optimized in order to reduce the cost of heat exchanger (by size), the tracking requirement and the whole system. A series of design curves for different solar concentration are obtained. It is shown that the overall efficiency of the system can be more than 80 % at 200x concentration which is independent of the material ZT (TE figure-of-merit). For a material with ZThot~0.9, the electrical conversion efficiency is ~10%. For advanced materials with ZThot ~ 2.8, the electrical conversion efficiency could reach ~21%. 1.

Kazuaki Yazawa; Ali Shakouri

404

E-Print Network 3.0 - angle tracking procedure Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

peculiarities... affect- ing the track appearances is the total internal reflection and inclination angles of elements... tracing method in studying tracks in SSNTDs D....

405

E-Print Network 3.0 - alpha-track radon monitor Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Public Health Tracking Network COLORADO Keeping Track, Promoting Health Summary: 's geology, topography and industries shape many of these concerns. For example, uranium,...

406

Search for point sources of high energy neutrinos with final data from AMANDA-II  

Science Journals Connector (OSTI)

We present a search for point sources of high energy neutrinos using 3.8 yr of data recorded by AMANDA-II during 2000–2006. After reconstructing muon tracks and applying selection criteria designed to optimally retain neutrino-induced events originating in the northern sky, we arrive at a sample of 6595 candidate events, predominantly from atmospheric neutrinos with primary energy 100 GeV to 8 TeV. Our search of this sample reveals no indications of a neutrino point source. We place the most stringent limits to date on E-2 neutrino fluxes from points in the northern sky, with an average upper limit of E2???+???5.2×10-11??TeV?cm-2?s-1 on the sum of ?? and ?? fluxes, assumed equal, over the energy range from 1.9 TeV to 2.5 PeV.

R. Abbasi et al. (IceCube Collaboration)

2009-03-18T23:59:59.000Z

407

Doppler effect on target tracking in wireless sensor networks  

Science Journals Connector (OSTI)

This paper presents a new detection algorithm and high speed/accuracy tracker for tracking ground targets in acoustic wireless sensor networks (WSNs). Our detection algorithm naturally accounts for the Doppler effect which is an important consideration for tracking higher-speed targets. This algorithm employs Kalman filtering (KF) with the weighted sensor position centroid being used as the target position measurement. The weighted centroid makes the tracker to be independent of the detection model and changes the tracker to be near optimal, at least within the detection parameters used in this study. Our approach contrasts with previous approaches that employ more sophisticated tracking algorithms with higher computational complexity and use a power law detection model. The power law detection model is valid only for low speed targets and is susceptible to mismatch with detection by the sensors in the field. Our tracking model also enables us to uniquely study various environmental effects on track accuracy, such as the Doppler effect, signal collision, signal delay, and different sampling time. Our WSN tracking model is shown to be highly accurate for a moving target in both linear and accelerated motions. The computing speed is estimated to be 50–100 times faster than the previous more sophisticated methods and track accuracy compares very favorably.

Youngwon Kim An; Seong-Moo Yoo; Changhyuk An; B. Earl Wells

2013-01-01T23:59:59.000Z

408

Vapor etching of nuclear tracks in dielectric materials  

DOE Patents [OSTI]

A process involving vapor etching of nuclear tracks in dielectric materials for creating high aspect ratio (i.e., length much greater than diameter), isolated cylindrical holes in dielectric materials that have been exposed to high-energy atomic particles. The process includes cleaning the surface of the tracked material and exposing the cleaned surface to a vapor of a suitable etchant. Independent control of the temperatures of the vapor and the tracked materials provide the means to vary separately the etch rates for the latent track region and the non-tracked material. As a rule, the tracked regions etch at a greater rate than the non-tracked regions. In addition, the vapor-etched holes can be enlarged and smoothed by subsequent dipping in a liquid etchant. The 20-1000 nm diameter holes resulting from the vapor etching process can be useful as molds for electroplating nanometer-sized filaments, etching gate cavities for deposition of nano-cones, developing high-aspect ratio holes in trackable resists, and as filters for a variety of molecular-sized particles in virtually any liquid or gas by selecting the dielectric material that is compatible with the liquid or gas of interest.

Musket, Ronald G. (Danville, CA); Porter, John D. (Berkeley, CA); Yoshiyama, James M. (Fremont, CA); Contolini, Robert J. (Lake Oswego, OR)

2000-01-01T23:59:59.000Z

409

Cost Analysis of a Concentrator Photovoltaic Hydrogen Production System  

SciTech Connect (OSTI)

The development of efficient, renewable methods of producing hydrogen are essential for the success of the hydrogen economy. Since the feedstock for electrolysis is water, there are no harmful pollutants emitted during the use of the fuel. Furthermore, it has become evident that concentrator photovoltaic (CPV) systems have a number of unique attributes that could shortcut the development process, and increase the efficiency of hydrogen production to a point where economics will then drive the commercial development to mass scale.

Thompson, J. R.; McConnell, R. D.; Mosleh, M.

2005-08-01T23:59:59.000Z

410

Tools for tracking and benchmarking facility energy performance | ENERGY  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Industrial energy management Industrial energy management » Measure, track, and benchmark » Tools for tracking and benchmarking facility energy performance Secondary menu About us Press room Contact Us Portfolio Manager Login Facility owners and managers Existing buildings Commercial new construction Industrial energy management Small business Service providers Service and product providers Verify applications for ENERGY STAR certification Design commercial buildings Energy efficiency program administrators Commercial and industrial program sponsors Associations State and local governments Federal agencies Tools and resources Training In this section Get started with ENERGY STAR Make the business case Build an energy management program Measure, track, and benchmark Tools for benchmarking energy management practices

411

A Multi-Axis Seam Tracking sensor for joining applications  

SciTech Connect (OSTI)

This paper describes the development and use of the Multi-Axis Seam Tracking (MAST) sensor for tracking seams or other features in real-time. Four independent, spatially-distributed electric fields are used to sense changes in the relative position of the sensor and the workpiece. The MAST sensor is very inexpensive compared with commercially available seam tracking sensors. It can be used in systems to perform cost-effective small-lot manufacturing operations in a faster, more consistent manner. The MAST sensor is used in an automated system for dispensing braze paste during a rocket nozzle fabrication process.

Novak, J.L.; Schmitt, D.J. [Sandia National Labs., Albuquerque, NM (United States); Maslakowski, J. [Rockwell International Corp., Canoga Park, CA (United States). Rocketdyne Div.

1993-11-01T23:59:59.000Z

412

TRACKING SURPLUS PLUTONIUM FROM WEAPONS TO DISPOSITION  

SciTech Connect (OSTI)

Supporting nuclear nonproliferation and global security principles, beginning in 1994 the United States has withdrawn more than 50 metric tons (MT) of government-controlled plutonium from potential use in nuclear weapons. The Department of Energy (DOE), including the National Nuclear Security Administration, established protocols for the tracking of this "excess" and "surplus" plutonium, and for reconciling the current storage and utilization of the plutonium to show that its management is consistent with the withdrawal policies. Programs are underway to ensure the safe and secure disposition of the materials that formed a major part of the weapons stockpile during the Cold War, and growing quantities have been disposed as waste, after which they are not included in traditional nuclear material control and accountability (NMC&A) data systems. A combination of resources is used to perform the reconciliations that form the basis for annual reporting to DOE, to U.S. Department of State, and to international partners including the International Atomic Energy Agency.

Allender, J.; Beams, J.; Sanders, K.; Myers, L.

2013-07-16T23:59:59.000Z

413

Energy Efficiency Adult Tracking Report - Final  

SciTech Connect (OSTI)

Postwave tracking study for the Energy Efficiency Adult Campaign This study serves as measure of key metrics among the campaign’s target audience, homeowners age 25+. Key measures include: Awareness of messages relating to the broad issue; Recognition of the PSAs; Relevant attitudes, including interest, ease of taking energy efficient steps, and likelihood to act; Relevant knowledge, including knowledge of light bulb alternatives and energy efficient options; and Relevant behaviors, including specific energy-saving behaviors mentioned within the PSAs. Wave 1: May 27 – June 7, 2011 Wave 2: May 29 – June 8, 2012 Wave 3: May 29 – June 19, 2014 General market sample of adults 25+ who own their homes W1 sample: n = 704; W2: n=701; W3: n=806 Online Survey Panel Methodology Study was fielded by Lightspeed Research among their survey panel. Sample is US Census representative of US homeowners by race/ethnicity, income, age, region, and family status. At least 30% of respondents were required to have not updated major appliances in their home in the past 5 years (dishwasher, stove, refrigerator, washer, or dryer).

Gibson-Grant, Amy

2014-09-30T23:59:59.000Z

414

Cylindrical acoustic levitator/concentrator  

DOE Patents [OSTI]

A low-power, inexpensive acoustic apparatus for levitation and/or concentration of aerosols and small liquid/solid samples having particulates up to several millimeters in diameter in air or other fluids is described. It is constructed from a commercially available, hollow cylindrical piezoelectric crystal which has been modified to tune the resonance frequency of the breathing mode resonance of the crystal to that of the interior cavity of the cylinder. When the resonance frequency of the interior cylindrical cavity is matched to the breathing mode resonance of the cylindrical piezoelectric transducer, the acoustic efficiency for establishing a standing wave pattern in the cavity is high. The cylinder does not require accurate alignment of a resonant cavity. Water droplets having diameters greater than 1 mm have been levitated against the force of gravity using; less than 1 W of input electrical power. Concentration of aerosol particles in air is also demonstrated.

Kaduchak, Gregory (Los Alamos, NM); Sinha, Dipen N. (Los Alamos, NM)

2002-01-01T23:59:59.000Z

415

Development of concentrator solar cells  

SciTech Connect (OSTI)

A limited pilot production run on PESC silicon solar cells for use at high concentrations (200 to 400 suns) is summarized. The front contact design of the cells was modified for operation without prismatic covers. The original objective of the contract was to systematically complete a process consolidation phase, in which all the, process improvements developed during the contract would be combined in a pilot production run. This pilot run was going to provide, a basis for estimating cell costs when produced at high throughput. Because of DOE funding limitations, the Photovoltaic Concentrator Initiative is on hold, and Applied Solar`s contract was operated at a low level of effort for most of 1993. The results obtained from the reduced scope pilot run showed the effects of discontinuous process optimization and characterization. However, the run provided valuable insight into the technical areas that can be optimized to achieve the original goals of the contract.

Not Available

1994-08-01T23:59:59.000Z

416

Concentration polarization in gas permeation  

SciTech Connect (OSTI)

It was verified that the selectivity of very thin (1 {mu}m thick) PDMS (polydimethylsiloxane) composite membranes for gaseous binary mixtures, like nitrogen and a hydrocarbon (HC), is as much as five times smaller than for the same mixture using a thick membrane (15 {mu}m-thick). This phenomenon is due to the build-up of the less permeable gas on the retentate side over the membrane and is known as the concentration polarization effect. In this paper we present a model for the gas concentration polarization effect based in the film theory and compare with the experimental results for the nitrogen-pentane separation using a PDMS membrane. 8 refs., 6 figs.

Mendes, A.M.M. [Univ. of Porto (Portugal); Alpers, A.; Peinemann, K.V.; Ohlrogge, K. [GKSS-Research Centre, Geesthacht (Germany)

1996-12-31T23:59:59.000Z

417

BROUWER'S FIXED POINT THEOREM JASPER DEANTONIO  

E-Print Network [OSTI]

BROUWER'S FIXED POINT THEOREM JASPER DEANTONIO Abstract. In this paper we prove Brouwer's Fixed be used to make three sequences which all have p as their limit point. Date: July 27, 2009. 1 #12;2 JASPER

May, J. Peter

418

Team Total Points Beta Theta Pi 2271  

E-Print Network [OSTI]

Bubbles 40 Upset City 30 Team Success 30 #12;Team Total Points Sly Tye 16 Barringer 15 Fire Stinespring 15

Buehrer, R. Michael

419

Other Purdue Web points of Interest  

E-Print Network [OSTI]

Other Purdue Web points of interest. Purdue University Home Page --- Schedule of Classes · Graduate School · Agronomy · Computer Science --- CS & E ...

420

Imaging infrared: Scene simulation, modeling, and real image tracking; Proceedings of the Meeting, Orlando, FL, Mar. 30, 31, 1989  

SciTech Connect (OSTI)

Various papers on scene simulation, modeling, and real image tracking using IR imaging are presented. Individual topics addressed include: tactical IR scene generator, dynamic FLIR simulation in flight training research, high-speed dynamic scene simulation in UV to IR spectra, development of an IR sensor calibration facility, IR celestial background scene description, transmission measurement of optical components at cryogenic temperatures, diffraction model for a point-source generator, silhouette-based tracking for tactical IR systems, use of knowledge in electrooptical trackers, detection and classification of target formations in IR image sequences, SMPRAD: simplified three-dimensional cloud radiance model, IR target generator, recent advances in testing of thermal imagers, generic IR system models with dynamic image generation, modeling realistic target acquisition using IR sensors in multiple-observer scenarios, and novel concept of scene generation and comprehensive dynamic sensor test.

Triplett, M.J.; Wolverton, J.R.; Hubert, A.J.

1989-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "tracking concentrator pointed" 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.


421

Level Set Implementations on Unstructured Point Cloud  

E-Print Network [OSTI]

Level Set Implementations on Unstructured Point Cloud by HO, Hon Pong A Thesis Submitted;Level Set Implementations on Unstructured Point Cloud by HO, Hon Pong This is to certify that I have implementations on unstructured point cloud 15 3.1 Level set initialization

Duncan, James S.

422

Check Point NGX R65 Security Administration  

Science Journals Connector (OSTI)

Check Point NGX R65 is the next major release of Check Point's flagship firewall software product, which has over 750,000 registered users. Check Point's NGX is the underlying security software platform for all of the company's enterprise firewall, VPN ... Keywords: Operating Systems, Security

Ralph Bonnell

2008-03-01T23:59:59.000Z

423

Point-based multiscale surface representation  

Science Journals Connector (OSTI)

In this article we present a new multiscale surface representation based on point samples. Given an unstructured point cloud as input, our method first computes a series of point-based surface approximations at successively higher levels of smoothness, ... Keywords: Surface representations, geometric modeling, morphing, scale space, shape modeling, spectral filtering

Mark Pauly; Leif P. Kobbelt; Markus Gross

2006-04-01T23:59:59.000Z

424

Range Monitoring with Photo-points  

E-Print Network [OSTI]

Photo-points provide a way for owners/managers to monitor rangeland health with a minimum of time and expense. This publication explains when, where and how often to photograph rangeland points, how to set up a photo point, and how to interpret...

McGinty, Allan; White, Larry D.

1998-08-31T23:59:59.000Z

425

Nesting points in the sphere Dan Archdeacon  

E-Print Network [OSTI]

Nesting points in the sphere Dan Archdeacon Dept. of Computer Science University of Vermont) Abstract Let G be a graph embedded in the sphere. A k-nest of a point x not in G is a collection C 1 nested if each point not on the graph has a k-nest. In this paper we

Archdeacon, Dan

426

Development of a commercial photovoltaic concentrator module  

SciTech Connect (OSTI)

The ojective of this work was to develop the design and prototype of a commercial high-concentration photovoltaic (PV) module. The design is for a 282-sun point-focus concentrating module. Most of the components, subassemblies, and design features incorporate simplifications and ease of manufacturing. The Solar Kinetics, Inc. (SKI) module is designed to incorporate high-efficiency, single-crystal silicon PV cells. The housing is made with aluminum laminated for voltage stand-off and simultaneously providing high thermal conductivity. The Fresnel lens injection molded by American Optical (AO) as singles. The cell assembly consists of a copper heat spreader, a photovoltaic cell soldered, a top and bottom contact, and a reflective secondary optical element (SOE). The cell assemblies passed all of the initial electrical characterization and high-potential tests. Under environmental cycling, the only bond that failed was the PV cell-to-heat spreader interface. The other components (top contact, bottom contact, SOE) passed all the environmental cycling tests. The cell assemblies were designed to be mounted onto the receiver section with a thermally conductive RTV. This geometry was subjected to environmental testing. There was no delamination of this bond nor was there electrical breakdown when the assemblies were subjected to the hi-pot test. A mock module was fabricated for environmental evaluation. This module was subjected to the humidity/freeze cycling to assess the performance of the lens mounting design. This module was also subjected to the rain test after the humidity/freeze cycling and checked for water leaks. The lens showed small displacement from its original position after the environmental cycling. One tablespoon of water did collect inside the module.

Saifee, S.T.; Hutchison, G. [Solar Kinetics, Inc., Dallas, TX (United States)

1992-09-01T23:59:59.000Z

427

DOE Seeks Applications for Tracking Carbon Dioxide Storage in Geologic  

Broader source: Energy.gov (indexed) [DOE]

Applications for Tracking Carbon Dioxide Storage in Applications for Tracking Carbon Dioxide Storage in Geologic Formations DOE Seeks Applications for Tracking Carbon Dioxide Storage in Geologic Formations February 19, 2009 - 12:00pm Addthis Washington, DC -- The U.S. Department of Energy (DOE) today issued a Funding Opportunity Announcement (FOA) to enhance the capability to simulate, track, and evaluate the potential risks of carbon dioxide (CO2) storage in geologic formations. Geologic storage is considered to be a key technological solution to mitigate CO2 emissions and combat climate change. DOE anticipates making multiple project awards under this FOA and, depending on fiscal year 2009 appropriations, may be able to provide up to $24 million to be distributed among selected recipients. This investment is

428

Noncompliance Tracking System Registration and Reporting | Department of  

Broader source: Energy.gov (indexed) [DOE]

Noncompliance Tracking System Registration and Reporting Noncompliance Tracking System Registration and Reporting Noncompliance Tracking System Registration and Reporting NTS Reporting NTS Registration (For new registration) REGISTRATION INFORMATION Once NTS account access has been granted, registrants for the Noncompliance Tracking System (NTS) with an ACTIVE ACCOUNT for the HSS Reporting Systems: Occurrence Reports & Processing System (ORPS), Computerized Accident/Incident Reporting System (CAIRS), Suspect Counterfeit Items (SCI), or the Daily Occurrence (DO) reports can use the same credentials to access NTS. Please access NTS REPORTING. Registrants who DO NOT have an HSS Reporting Systems account, or who have not accessed their account within the past six months MUST REGISTER for a NTS account. Please register at: HSS Reporting Systems Registration.

429

Particle Transport by Walking People: Tracking and Resuspension  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Particle Transport by Walking People: Tracking and Resuspension Particle Transport by Walking People: Tracking and Resuspension Speaker(s): Mark Sippola Date: November 8, 2007 - 12:00pm Location: 90-3122 In 2001, letters containing anthrax spores were sent through the mail, contaminating several US buildings. Subsequent sampling revealed that the spores were widely and unevenly spread throughout the buildings and could be found even at locations far from where the letters were handled or opened. The transport of spores was likely to be influenced by tracking and resuspension by walking people, but the magnitude of this type transport is uncertain and the parameters that control it are not understood. Particles on floors are tracked from one area to another on people's shoes and are resuspended from floors and clothing during

430

Inventory Tracking and Management: Fact Sheet | National Nuclear Security  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Inventory Tracking and Management: Fact Sheet | National Nuclear Security Inventory Tracking and Management: Fact Sheet | 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 > Media Room > Fact Sheets > Inventory Tracking and Management: Fact Sheet Fact Sheet Inventory Tracking and Management: Fact Sheet Mar 23, 2012 Under International Atomic Energy Agency (IAEA) safeguards agreements,

431

EISA Compliance Tracking System Reports and Data | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

EISA Compliance Tracking System Reports and Data EISA Compliance Tracking System Reports and Data EISA Compliance Tracking System Reports and Data October 8, 2013 - 2:06pm Addthis The Federal Energy Management Program (FEMP) provides links to reports and data illustrating Federal progress in meeting the requirements outlined in Section 432 of the Energy Independence and Security Act of 2007 (EISA) (42 U.S.C. 8253(f)) available through the EISA 432 Compliance Tracking System (CTS). EISA 432 CTS Data Levels Top-tier agency aggregates, representing all reported data subject to the EISA 432 requirements Facility-level detailed data that excludes information for facilities that have requested exemption from public disclosure for national-security purposes. Access Data Federal Government Compliance Overview: View key CTS metrics and aggregates

432

Stratigraphic Record Of The Yellowstone Hotspot Track, Neogene Sixmile  

Open Energy Info (EERE)

Stratigraphic Record Of The Yellowstone Hotspot Track, Neogene Sixmile Stratigraphic Record Of The Yellowstone Hotspot Track, Neogene Sixmile Creek Formation Grabens, Southwest Montana Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Stratigraphic Record Of The Yellowstone Hotspot Track, Neogene Sixmile Creek Formation Grabens, Southwest Montana Details Activities (1) Areas (1) Regions (0) Abstract: The Sixmile Creek Formation fills deep grabens in southwest Montana and preserves a stratigraphic record of the evolution of the Yellowstone hotspot track from ~ 17 Ma to ~ 2 Ma. The Ruby, Beaverhead, Big Hole, Deer Lodge, Medicine Lodge-Grasshopper, Three Forks, Canyon Ferry, Jefferson, Melrose, Wise River, and Paradise grabens were active during outbreak of the hotspot. They appear to be parts of a radial system of

433

Archived Technology Tracking Reports - Solid-State Lighting  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

4/16/2003 4/16/2003 | Headline News | Tracking Reports | Archived Tracking Reports | Hot Technical Papers |Credits & Disclaimer | ARCHIVED SCIENCE, TECHNOLOGY, BUSINESS AND NATIONAL NEWS TRACKING REPORTS This table contains archived tracking reports of news and literature related to solid-state lighting. Material from newswires, newspapers, magazines, websites, and technical journals is included. For these archived reports, links to full-text sources have been provided, but are not guaranteed to work. Issue # Dates Science & Technology Literature Business & National News 21 2003-2004 (Mid December 2003 – Early February 2004) button button 20 2003 (Mid Sept – Early December) button button 19 2003 (Mid July – Mid-September) button button 18 Archived Issue

434

Validation of a Three Dimensional Particle Tracking Velocimetry Software  

E-Print Network [OSTI]

reconstruction. For the experimental assessment, the OpenPTV results are compared with a Laser Doppler Velocimetry study, as well as results from the in-house two dimensional particle tracking velocimetry software. As contributions to the consortium, the author...

Goumnerov, Hristo

2014-08-01T23:59:59.000Z

435

Novel monitoring system to diagnose rail track foundation problems  

E-Print Network [OSTI]

A low cost, remote monitoring system has been developed to diagnose rail track subgrade failures. The portable monitoring system consists of five liquid vertical settlement probes, one piezometer, a small data acquisition ...

Aw, Eng Sew, 1978-

2004-01-01T23:59:59.000Z

436

Real-time seam tracking for rocket thrust chamber manufacturing  

SciTech Connect (OSTI)

A sensor-based control approach for real-time seam tracking of rocket thrust chamber assemblies has been developed to enable automation of a braze paste dispensing process. This approach utilizes a non-contact Multi-Axis Seam Tracking (MAST) sensor to track the seams. Thee MAST sensor measures capacitance variations between the sensor and the workpiece and produces four varying voltages which are read directly into the robot controller. A PID control algorithm which runs at the application program level has been designed based upon a simple dynamic model of the combined robot and sensor plant. The control algorithm acts on the incoming sensor signals in real-time to guide the robot motion along the seam path. Experiments demonstrate that seams can be tracked at 100 mm/sec within the accuracy required for braze paste dispensing.

Schmitt, D.J.; Novak, J.L. [Sandia National Labs., Albuquerque, NM (United States); Starr, G.P. [New Mexico Univ., Albuquerque, NM (United States); Maslakowski, J.E. [Rockwell International Corp., Canoga Park, CA (United States). Rocketdyne Div.

1993-11-01T23:59:59.000Z

437

Tracking Terrorism News Threads by Extracting Event Signatures  

E-Print Network [OSTI]

Tracking Terrorism News Threads by Extracting Event Signatures Syed Toufeeq Ahmed, Ruchi Bhindwale and terrorism in news streams through their life over a time line. We do this by first extracting signature

Davulcu, Hasan

438

Nano-tribology of discrete track recording media  

E-Print Network [OSTI]

1.27 (a) Schematic of slider flying over disk and pressure1.27 (a) Schematic of slider flying over disk and pressureat very small slider-disk flying heights for discrete track

Yoon, Yeoungchin

2010-01-01T23:59:59.000Z

439

Simulation of the head disk interface for discrete track media  

Science Journals Connector (OSTI)

This paper investigates the effect of discrete tracks on the steady state flying behavior of sub ambient proximity sliders. A ... air bearing simulator is used to simulate the flying characteristics of sliders ov...

Maik Duwensee; Shoji Suzuki; Judy Lin; David Wachenschwanz…

2007-05-01T23:59:59.000Z

440

A robust location tracking using ubiquitous RFID wireless network  

Science Journals Connector (OSTI)

A dangerous workplace like the iron production company needs a durable monitoring of workers to protect them from an critical accident. This paper concerns about a robust and accurate location tracking method using ubiquitous RFID wireless network. The ...

Keunho Yun; Seokwon Choi; Daijin Kim

2006-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "tracking concentrator pointed" 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

Generative Affine Localisation and Tracking John Winn Andrew Blake  

E-Print Network [OSTI]

Generative Affine Localisation and Tracking John Winn Andrew Blake Microsoft Research Cambridge://research.microsoft.com/mlp Abstract We present an extension to the Jojic and Frey (2001) layered sprite model which allows for layers

Winn, John

442

Renewable Energy Certificate (REC) Tracking Systems: Costs & Verification Issues (Presentation)  

SciTech Connect (OSTI)

This document provides information on REC tracking systems: how they are used in the voluntary REC market, a comparison of REC systems fees and information regarding how they treat environmental attributes.

Heeter, J.

2013-10-01T23:59:59.000Z

443

Robust Stereo Tracking for Space Applications Fabien Dionnet, Eric Marchand  

E-Print Network [OSTI]

Robust Stereo Tracking for Space Applications Fabien Dionnet, Eric Marchand Abstract-- This paper has Authors are with INRIA, IRISA, projet Lagadic, F-35000 Rennes, France ; Email {Fabien.Dionnet,Eric.Marchand

Boyer, Edmond

444

Feature tracking for visual servoing purposes ric Marchand, Franois Chaumette  

E-Print Network [OSTI]

Feature tracking for visual servoing purposes �ric Marchand, François Chaumette IRISA - INRIA experiments ordered by subjective increasing difficulties. Email addresses: marchand@irisa.fr (�ric Marchand

Paris-Sud XI, Université de

445

Tracking Objects using Recognition Randal C. Nelson Isaac A. Green  

E-Print Network [OSTI]

Tracking Objects using Recognition Randal C. Nelson Isaac A. Green Computer Science Department, such as glasses, car keys, and the TV remote control. In this domain, us- ing a traditional tracker would be both

Nelson, Randal

446

ROBUST PITCH TRACKING FOR PROSODIC MODELING IN TELEPHONE SPEECH  

E-Print Network [OSTI]

on the frequency-domain analysis of the speech signal, namely, the discrete logarithmic Fourier transform (DLFT and the tracking algorithms are quite different. When the DLFT based PDA was first introduced in [7], it required

447

Facilitating Opportunistic Communication by Tracking the Documents People Use  

E-Print Network [OSTI]

Facilitating Opportunistic Communication by Tracking the Documents People Use Jay Budzik, Xiaobin communication while they are manipulating related documents by embedding awareness and communication facilities directly into everyday document manipulation applications. I2I automatically clusters the documents users

Bustamante, Fabián E.

448

Vision Based Target Tracking and Collision Avoidance for Mobile Robots  

Science Journals Connector (OSTI)

A real-time object tracking and collision avoidance method is presented for mobile robot navigation in indoors environments using stereo vision ... and to calculate its relative distance from the mobile robot whi...

A. Tsalatsanis; K. Valavanis; A. Yalcin

2007-02-01T23:59:59.000Z

449

Automated Part Tracking and Metrology Applied to a Manufacturing Process  

E-Print Network [OSTI]

This paper presents a case study in the design of an automated part tracking and metrology systems for an industrial manufacturing system. A major productivity challenge of this facility is managing each batch of parts as it is formed, treated...

Morelli, F.; Halbert, T.; Hignight, M.; Kell, Z.; Lacy, J.; Rasmussen, B. P.

2013-01-01T23:59:59.000Z

450

3D Tracking at the Nanoscale | The Ames Laboratory  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3D Tracking at the Nanoscale A new theory shows that reactivity at catalytic sites inside narrow pores is controlled by how molecules move at the pore openings. Like cars...

451

Graphical models for visual object recognition and tracking  

E-Print Network [OSTI]

We develop statistical methods which allow effective visual detection, categorization, and tracking of objects in complex scenes. Such computer vision systems must be robust to wide variations in object appearance, the ...

Sudderth, Erik B. (Erik Blaine), 1977-

2006-01-01T23:59:59.000Z

452

Follow Live Dec 24: Los Alamos National Lab Tracks Rudolph's...  

Broader source: Energy.gov (indexed) [DOE]

before Christmas. Tracking Santa With Our Eyes in the Sky The Cibola Flight Experiment (CFE) is an experimental small satellite that was designed to prove that off-the-shelf...

453

Tracking long-distance migration to assess marine pollution impact  

Science Journals Connector (OSTI)

...Quebec, Canada 4 Environment Canada, Mount Pearl, Newfoundland, Canada Animal tracking provides new...multiple colonies in eastern Canada migrated to the pollution zone...cannot be determined during solar equinoxes [8], so latitude...

2012-01-01T23:59:59.000Z

454

Experiential Component Approval Form Concentration in Nanotechnology  

E-Print Network [OSTI]

Experiential Component Approval Form Concentration in Nanotechnology Return completed form to ENG Plan to complete the experiential component as a requirement for the concentration in Nanotechnology to complete the experiential component for the Nanotechnology Concentration by: Research Experience in Lab

Goldberg, Bennett

455

A microfabricated dielectrophoretic micro-organism concentrator  

E-Print Network [OSTI]

This project focuses on the development of a micro-organism concentrator. Pathogen detection, particularly MEMS based detection, is often limited by sample concentration. The proposed concentrator will interface with a ...

Muller, Rikky, 1980-

2004-01-01T23:59:59.000Z

456

A portable neural network approach to vehicle tracking  

E-Print Network [OSTI]

A PORTABLE NEURAL NETWORK APPROACH TO VEHICLE TRACKING A Thesis by KELLY MAXWELL MILLER Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May... 1994 Major Subject: Electrical Engineering A PORTABLE NEURAL NETWORK APPROACH TO VEHICLE TRACKING A Thesis by KELLY MAXWELL MILLER Submitted to the OAice of Graduate Studies of Texas ARM University in partial fulfillment of the requirements...

Miller, Kelly Maxwell

2012-06-07T23:59:59.000Z

457

Sandia National Laboratories: multiscale concentrated solar power  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

concentrated solar power Solar Energy Research Institute for India and the United States Kick-Off On November 27, 2012, in Concentrating Solar Power, Energy, National Solar Thermal...

458

Sandia National Laboratories: Concentrating Solar Power  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Concentrating Solar Power Solar Energy On February 3, 2011, in Solar Programs Photovoltaics Concentrating Solar Power Sunshine to Petrol Solar Publications Recent Solar Highlights...

459

Sandia National Laboratories: Concentrating Solar Power  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Concentrating Solar Power (CSP) On April 13, 2011, in CSP R&D at Sandia Testing Facilities Software & Tools Resources Contacts News Concentrating Solar Power ANNOUNCEMENT: Sandia's...

460

Tracking topic birth and death in LDA.  

SciTech Connect (OSTI)

Most topic modeling algorithms that address the evolution of documents over time use the same number of topics at all times. This obscures the common occurrence in the data where new subjects arise and old ones diminish or disappear entirely. We propose an algorithm to model the birth and death of topics within an LDA-like framework. The user selects an initial number of topics, after which new topics are created and retired without further supervision. Our approach also accommodates many of the acceleration and parallelization schemes developed in recent years for standard LDA. In recent years, topic modeling algorithms such as latent semantic analysis (LSA)[17], latent Dirichlet allocation (LDA)[10] and their descendants have offered a powerful way to explore and interrogate corpora far too large for any human to grasp without assistance. Using such algorithms we are able to search for similar documents, model and track the volume of topics over time, search for correlated topics or model them with a hierarchy. Most of these algorithms are intended for use with static corpora where the number of documents and the size of the vocabulary are known in advance. Moreover, almost all current topic modeling algorithms fix the number of topics as one of the input parameters and keep it fixed across the entire corpus. While this is appropriate for static corpora, it becomes a serious handicap when analyzing time-varying data sets where topics come and go as a matter of course. This is doubly true for online algorithms that may not have the option of revising earlier results in light of new data. To be sure, these algorithms will account for changing data one way or another, but without the ability to adapt to structural changes such as entirely new topics they may do so in counterintuitive ways.

Wilson, Andrew T.; Robinson, David Gerald

2011-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "tracking concentrator pointed" 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

LiTrack: A Fast Longitudinal Phase Space Tracking Code with Graphical User Interface  

SciTech Connect (OSTI)

Linac-based light sources and linear colliders typically apply longitudinal phase space manipulations in their design, including electron bunch compression and wakefield-induced energy spread control. Several computer codes handle such issues, but most also require detailed information on the transverse focusing lattice. In fact, in most linear accelerators, the transverse distributions do not significantly affect the longitudinal, and can be ignored initially. This allows the use of a fast 2D code to study longitudinal aspects without time-consuming considerations of the transverse focusing. LiTrack is based on a 15-year old code (same name) originally written by one of us (KB), which is now a Matlab [1] code with additional features, such as graphical user interface, prompt output plotting, and functional call within a script. This single-bunch tracking code includes RF acceleration, bunch compression to 3rd order, geometric and resistive short-range wakefields, aperture limits, synchrotron radiation, and flexible output plotting. The code was used to design both the LCLS [2] and the SPPS [3] projects at SLAC and typically runs 10{sub 5} particles in < 1 minute. We describe the features, show some examples, and provide free access to the code.

Bane, K.L.F.

2005-03-24T23:59:59.000Z

462

Critical point analysis of phase envelope diagram  

SciTech Connect (OSTI)

Phase diagram or phase envelope is a relation between temperature and pressure that shows the condition of equilibria between the different phases of chemical compounds, mixture of compounds, and solutions. Phase diagram is an important issue in chemical thermodynamics and hydrocarbon reservoir. It is very useful for process simulation, hydrocarbon reactor design, and petroleum engineering studies. It is constructed from the bubble line, dew line, and critical point. Bubble line and dew line are composed of bubble points and dew points, respectively. Bubble point is the first point at which the gas is formed when a liquid is heated. Meanwhile, dew point is the first point where the liquid is formed when the gas is cooled. Critical point is the point where all of the properties of gases and liquids are equal, such as temperature, pressure, amount of substance, and others. Critical point is very useful in fuel processing and dissolution of certain chemicals. Here in this paper, we will show the critical point analytically. Then, it will be compared with numerical calculations of Peng-Robinson equation by using Newton-Raphson method. As case studies, several hydrocarbon mixtures are simulated using by Matlab.

Soetikno, Darmadi; Siagian, Ucok W. R. [Department of Petroleum Engineering, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132 (Indonesia); Kusdiantara, Rudy, E-mail: rkusdiantara@s.itb.ac.id; Puspita, Dila, E-mail: rkusdiantara@s.itb.ac.id; Sidarto, Kuntjoro A., E-mail: rkusdiantara@s.itb.ac.id; Soewono, Edy; Gunawan, Agus Y. [Department of Mathematics, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132 (Indonesia)

2014-03-24T23:59:59.000Z

463

AMF Deployment, Point Reyes National Seashore, California  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

California California Point Reyes Deployment AMF Home Point Reyes Home Data Plots and Baseline Instruments Experiment Planning MASRAD Proposal Abstract and Related Campaigns Outreach Posters Climate Research at Point Reyes National Seashore (horizontal) Climate Research at Point Reyes National Seashore (vertical) News Campaign Images AMF Deployment, Point Reyes National Seashore, California Point Reyes National Seashore, on the California coast north of San Francisco. Shelters: 38° 5' 30.51" N, 122° 57' 19.90" W Instrument Field: 38° 5' 27.6" N, 122° 57' 25.80" W Altitude: 8 meters Point Reyes National Seashore, on the California coast north of San Francisco, was the location of the first deployment of the DOE's Atmospheric Radiation Measurement (ARM) Mobile Facility (AMF). The ARM

464

Analysis of Crossover Points for MVLT Superclass  

Broader source: Energy.gov (indexed) [DOE]

of Crossover Points for MVLT Superclass of Crossover Points for MVLT Superclass 58761v1 Page 1 White Paper - Analysis of Cross-Over Points for Grain-Oriented Electrical Steel and Amorphous Ribbon for the MVLT Superclass Cross-over points for the Medium Voltage Liquid Filled distribution transformer super-class have been analyzed based on the Engineering Analysis provided by the Department of Energy. For the purpose of this white paper, a cross-over point is defined as where the low-cost curve fitted to the point cloud for all of the transformers with M-3 grain-oriented electrical steel core designs crosses the low-cost curve fitted to the point cloud for all of the transformers with amorphous (SA1) core designs. This analysis is based on the data from the DOE Engineering Analysis. It excludes uncorroborated data

465

Designing energy efficient target tracking protocol with quality monitoring in wireless sensor networks  

Science Journals Connector (OSTI)

Target tracking is one application of wireless sensor networks and energy efficient target tracking algorithms that can be used for accurate tracking are highly desired. In order to achieve energy savings, we focus on reducing energy usage by limiting ... Keywords: Data quality, Energy efficiency, Network lifetime, Target tracking, Wireless sensor networks

Minyi Guo; Elizabeth Olule; Guojun Wang; Song Guo

2010-02-01T23:59:59.000Z

466

Video-Based Document Tracking: Unifying Your Physical and Electronic Desktops  

E-Print Network [OSTI]

Video-Based Document Tracking: Unifying Your Physical and Electronic Desktops Jiwon Kim Steven M tracking scenario, the system tracks changes in the stacks of printed documents and books on the desk camera mounted above a desktop (a, b), our system tracks and recognizes all documents and links them

Zhang, Li

467

AMIEDoT: An annotation model for document tracking and recommendation service  

E-Print Network [OSTI]

AMIEDoT: An annotation model for document tracking and recommendation service ROBERT Charles for Information Exchange and Document Tracking) an annotation model that can assist in document tracking a document was used for. Beyond document tracking, our model can be used in not only for selective

Boyer, Edmond

468

The Optical Designing Method and the Concentrating Performance Analysis for a Toroidal Heliostat with Spinning-Elevation Sun Tracking  

Science Journals Connector (OSTI)

A practical optical designing method for and some optical simulation results of a toroidal surface heliostat with the two axis spinning-elevation sun ... hydrogen generation system. As a prototype, this heliostat

Minghuan Guo; Zhifeng Wang; Zhenwu Lu

2009-01-01T23:59:59.000Z

469

Cloud point determination using a thickness shear mode resonator  

SciTech Connect (OSTI)

Crude oils and crude oil products contain substantial amounts of petroleum waxes, consisting of a distribution of high molecular weight hydrocarbons. These waxes or paraffins have limited solubility in oil and tend to precipitate out at a temperature determined by the concentration and constituents of the wax. Precipitation and deposition of wax results in narrowing of pipelines, making crude oil recovery difficult. A parameter of practical importance is the wax precipitation temperature, traditionally known as the cloudpoint, at which visible crystallization occurs. Deposition problems arise in oil field operations at or below this temperature. Several techniques can be used to determine the cloud point: (1) visual observation, (2) viscosity measurement, (3) differential thermal analysis, and (4) pulsed nuclear magnetic resonance. This report describes a method for determination of cloud point with the use of a thickness shear mode resonator.

Spates, J.J. [Ktech Corp., Albuquerque, NM (United States); Martin, S.J.; Mansure, A.J. [Sandia National Lab., Albuquerque, NM (United States); Germer, J.W. [Petrolite Corp., St. Louis, MO (United States)

1995-12-31T23:59:59.000Z

470

SunShot Initiative: Concentrating Solar Power  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Concentrating Solar Power to Concentrating Solar Power to someone by E-mail Share SunShot Initiative: Concentrating Solar Power on Facebook Tweet about SunShot Initiative: Concentrating Solar Power on Twitter Bookmark SunShot Initiative: Concentrating Solar Power on Google Bookmark SunShot Initiative: Concentrating Solar Power on Delicious Rank SunShot Initiative: Concentrating Solar Power on Digg Find More places to share SunShot Initiative: Concentrating Solar Power on AddThis.com... Concentrating Solar Power Systems Components Competitive Awards Staff Photovoltaics Systems Integration Balance of Systems Concentrating Solar Power SunShot CSP Team Learn more about the SunShot concentrating solar power program staff by visiting the team's profile pages. Argonne National Laboratory Argonne National Laboratory

471

Perpendicular fibre tracking for neural fibre bundle analysis using diffusion MRI  

Science Journals Connector (OSTI)

Information on the directionality and structure of axonal fibres in neural tissue can be obtained by analysing diffusion-weighted MRI data sets. Several fibre tracking algorithms have been presented in the literature that trace the underlying field of principal orientations of water diffusion, which correspond to the local primary eigenvectors of the diffusion tensor field. However, the majority of the existing techniques ignore the secondary and tertiary orientations of diffusion, which contain significant information on the local patterns of diffusion. In this paper, we introduce the idea of perpendicular fibre tracking and present a novel dynamic programming method that traces surfaces, which are locally perpendicular to the axonal fibres. This is achieved by using a cost function, with geometric and fibre orientation constraints, that is evaluated dynamically for every voxel in the image domain starting from a given seed point. The proposed method is tested using synthetic and real DW-MRI data sets. The results conclusively demonstrate the accuracy and effectiveness of our method.

S. Ray; W. O'Dell; Angelos Barmpoutis

2014-01-01T23:59:59.000Z

472

Apparatus and method for tracking a molecule or particle in three dimensions  

DOE Patents [OSTI]

An apparatus and method were used to track the movement of fluorescent particles in three dimensions. Control software was used with the apparatus to implement a tracking algorithm for tracking the motion of the individual particles in glycerol/water mixtures. Monte Carlo simulations suggest that the tracking algorithms in combination with the apparatus may be used for tracking the motion of single fluorescent or fluorescently labeled biomolecules in three dimensions.

Werner, James H. (Los Alamos, NM); Goodwin, Peter M. (Los Alamos, NM); Lessard, Guillaume (Santa Fe, NM)

2009-03-03T23:59:59.000Z

473

Optically Modulated Electrokinetic Manipulation and Concentration ...  

E-Print Network [OSTI]

Mar 16, 2010 ... pubs.acs.org/Langmuir. ©2010 American Chemical Society ..... different aspects of the REP process are studied with techniques such as LIF thermometry ... using a MATLAB adaptation of the IDL particle tracking soft- ...... Simplified Trapping Probability Models from Simulation of Optical Tweezers. Systems.

2010-03-16T23:59:59.000Z

474

Concentrating Solar Power: Technology Overview  

SciTech Connect (OSTI)

Concentrating Solar Power (CSP) has the potential to contribute significantly to the generation of electricity by renewable energy resources in the U.S.. Thermal storage can extend the duty cycle of CSP beyond daytime hours to early evening where the value of electricity is often the highest. The potential solar resource for the southwest U.S. is identified, along with the need to add power lines to bring the power to consumers. CSP plants in the U.S. and abroad are described. The CSP cost of electricity at the busbar is discussed. With current incentives, CSP is approaching competiveness with conventional gas-fired systems during peak-demand hours when the price of electricity is the highest. It is projected that a mature CSP industry of over 4 GWe will be able to reduce the energy cost by about 50%, and that U.S. capacity could be 120 GW by 2050.

Mehos, M.

2008-01-01T23:59:59.000Z

475

End Points Management | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Management Management End Points Management The policy of the EM is that a formal project management approach be used for the planning, managing, and conducting of its projects. Specifying and achieving end points is a systematic, engineering way of proceeding from an existing condition to a stated desired final set of conditions in which the facility is safe and can be economically monitored and maintained. An end point method is a way to translate broad mission statements to explicit goals that are readily understood by engineers and craft personnel who do the work. (It should be recognized that while end points as addressed here are for a final set of conditions for deactivation, they may represent an interim point for the overall EM cleanup goal.) End Points Management

476

The Rheology of Concentrated Suspensions  

SciTech Connect (OSTI)

Research program on the rheological properties of flowing suspensions. The primary purpose of the research supported by this grant was to study the flow characteristics of concentrated suspensions of non-colloidal solid particles and thereby construct a comprehensive and robust theoretical framework for modeling such systems quantitatively. At first glance, this seemed like a modest goal, not difficult to achieve, given that such suspensions were viewed simply as Newtonian fluids with an effective viscosity equal to the product of the viscosity of the suspending fluid times a function of the particle volume fraction. But thanks to the research findings of the Principal Investigator and of his Associates, made possible by the steady and continuous support which the PI received from the DOE Office of Basic Energy Sciences, the subject is now seen to be more complicated and therefore much more interesting in that concentrated suspensions have been shown to exhibit fascinating and unique rheological properties of their own that have no counterpart in flowing Newtonian or even non-Newtonian (polymeric) fluids. In fact, it is generally acknowledged that, as the result of these investigations for which the PI received the 2001 National Medal of Science, our understanding of how suspensions behave under flow is far more detailed and comprehensive than was the case even as recently as a decade ago. Thus, given that the flow of suspensions plays a crucial role in many diverse physical processes, our work has had a major and lasting impact in a subject having both fundamental as well as practical importance.

Andreas Acrivos

2004-09-07T23:59:59.000Z

477

Design and prototype of a minimal cost tracking photovoltaic array structure  

SciTech Connect (OSTI)

This paper presents research results to develop a minimal cost photovoltaic array tracking structure. Objectives of the project were to (1) employ a modular design based upon multiple point foundations, off-site assembly, and commercially available materials; (2) offer performance improvements over horizontal one-axis trackers by tilting the axis of rotation; (3) verify design performance, and cost goals through prototype construction and operation. Each of these objectives was accomplished beginning with design activities in early 1993 and culminating with construction of commercial trackers in early 1995. The Delta Trackers{trademark} offer dramatic reduction in PV energy production costs ({cents}/kWh) through lower balance-of-system costs and improved performance.

Shugar, D.S. [Advanced Photovoltaic Systems, Inc., San Bruno, CA (United States); Matlin, R.W. [Enertech Engineering, Lexington, MA (United States)

1995-10-01T23:59:59.000Z

478

Exposure of nuclear track emulsion to thermal neutrons, heavy ions and muons  

E-Print Network [OSTI]

Physical analysis of exposures of test samples of reproduced nuclear track emulsion (NTE) is presented. In boron enriched NTE the angular and energy correlations of products of the reaction induced by thermal neutrons n$_{th} + ^{10}B \\rightarrow ^{7}Li + (\\gamma) + \\alpha$ are studied. NTE was exposed to ions $^{86}Kr^{+17}$ and $^{124}Xe^{+26}$ of energy about 1.2 A MeV. Measurements of the heavy ion ranges of in NTE allowed one to determine their energy on a basis of the SRIM model. Nuclear stars of large multiplicity of target nuclei are observed in exposure of NTE to ultrarelativistic $\\mu$-mesons. The kinematical characteristics of the events of splitting of carbon nuclei into three $\\alpha$-particles studied in this exposure point to a nuclear diffractive mechanism of interactions.

D. A. Artemenkov; V. Bradnova; A. A. Zaitsev; P. I. Zarubin; I. G. Zarubina; R. R. Kattabekov; K. Z. Mamatkulov; V. V. Rusakova

2014-07-17T23:59:59.000Z

479

[0268] First Galley Proofs MULTIPLICITIES, BOUNDARY POINTS,  

E-Print Network [OSTI]

, multiplicity, extreme point, sharp point, boundary point. c Ð , Zagreb Paper OaM-0268 1 #12;2 W.S. CHEUNG NUMERICAL RANGES WAI-SHUN CHEUNG, XUHUA LIU AND TIN-YAU TAM (Communicated by C.-K. Li) Abstract, XUHUA LIU AND T.Y. TAM Given W(A), Embry [8] introduced M = M (A) := {x Cn : x Ax = x x}. In general

Tam, Tin-Yau

480

Prediction of Cloud Points of Biodiesel  

Science Journals Connector (OSTI)

Prediction of Cloud Points of Biodiesel† ... Despite the lack of accurate data for the cloud points of biodiesel, the results obtained here allow for an adequate evaluation of the model proposed, showing that it can produce good predictions of the cloud points of mixtures of fatty acid esters. ... Because of its environmental benefits, resulting from a decrease in CO2 emissions, its origin from renewable resources, and the increase in crude oil costs, biodiesel is become increasingly attractive. ...

J. C. A. Lopes; L. Boros; M. A. Krähenbühl; A. J. A. Meirelles; J. L. Daridon; J. Pauly; I. M. Marrucho; J. A. P. Coutinho

2007-10-09T23:59:59.000Z

Note: This page contains sample records for the topic "tracking concentrator pointed" 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.


481

Electronic film with embedded micro-mirrors for solar energy concentrator systems  

E-Print Network [OSTI]

A novel electronic film solar energy concentrator with embedded micro-mirrors that track the sun is described. The potential viability of this new concept is presented. Due to miniaturization, the amount of material needed for the optical system is minimal. Because it is light-weight and flexible, it can easily be attached to the land or existing structures. This presents an economic advantage over conventional concentrators which require the construction of a separate structure to support them, and motors to orient them to intercept and properly reflect sunlight. Such separate structures must be able to survive gusts, windstorms, earthquakes, etc. This concentrator utilizes the ground or existing edifices which are already capable of withstanding such vicissitudes of nature.

Mario Rabinowitz; Mark Davidson

2004-04-16T23:59:59.000Z

482

Electronic film with embedded micro-mirrors for solar energy concentrator systems  

E-Print Network [OSTI]

A novel electronic film solar energy concentrator with embedded micro-mirrors that track the sun is described. The potential viability of this new concept is presented. Due to miniaturization, the amount of material needed for the optical system is minimal. Because it is light-weight and flexible, it can easily be attached to the land or existing structures. This presents an economic advantage over conventional concentrators which require the construction of a separate structure to support them, and motors to orient them to intercept and properly reflect sunlight. Such separate structures must be able to survive gusts, windstorms, earthquakes, etc. This concentrator utilizes the ground or existing edifices which are already capable of withstanding such vicissitudes of nature.

Rabinowitz, M; Rabinowitz, Mario; Davidson, Mark

2004-01-01T23:59:59.000Z

483

New York Nuclear Profile - Indian Point  

U.S. Energy Information Administration (EIA) Indexed Site

Indian Point" "Unit","Summer capacity (mw)","Net generation (thousand mwh)","Summer capacity factor (percent)","Type","Commercial operation date","License expiration date"...

484

Wisconsin Nuclear Profile - Point Beach Nuclear Plant  

U.S. Energy Information Administration (EIA) Indexed Site

Point Beach Nuclear Plant" "Unit","Summer capacity (mw)","Net generation (thousand mwh)","Summer capacity factor (percent)","Type","Commercial operation date","License expiration...

485

Building Green in Greensburg: Prairie Pointe Townhomes  

Office of Energy Efficiency and Renewable Energy (EERE)

This poster highlights energy efficiency, renewable energy, and sustainable features of the high-performing Prairie Pointe Townhomes in Greensburg, Kansas.

486

Homework/Program #1 Solutions a) ( 1 point for each Hello*.java files (3 points), 1 point for each Hello*.class file (3 points)  

E-Print Network [OSTI]

Homework/Program #1 Solutions 1. a) ( 1 point for each Hello*.java files (3 points), 1 point for each Hello*.class file (3 points) -rw-r--r--. 1 cs11xyz cs11sxyz 718 Oct 2 21:47 Hello2.class -rw-r--r--. 1 cs11xyz cs11sxyz 938 Oct 2 21:22 Hello2.java -rw-r--r--. 1 cs11xyz cs11sxyz 427 Oct 2 21:47 Hello

Papadopoulos, Philip M.

487

Inexact and accelerated proximal point algorithms  

E-Print Network [OSTI]

Aug 10, 2011 ... Abstract: We present inexact accelerated proximal point algorithms for minimizing a proper lower semicon- tinuous and convex function.

Saverio Salzo

2011-08-10T23:59:59.000Z

488

Assessing the Effects of Anthropogenic Aerosols on Pacific Storm Track Using a Multiscale Global Climate Model  

SciTech Connect (OSTI)

Atmospheric aerosols impact weather and global general circulation by modifying cloud and precipitation processes, but the magnitude of cloud adjustment by aerosols remains poorly quantified and represents the largest uncertainty in estimated forcing of climate change. Here we assess the impacts of anthropogenic aerosols on the Pacific storm track using a multi-scale global aerosol-climate model (GCM). Simulations of two aerosol scenarios corresponding to the present day and pre-industrial conditions reveal long-range transport of anthropogenic aerosols across the north Pacific and large resulting changes in the aerosol optical depth, cloud droplet number concentration, and cloud and ice water paths. Shortwave and longwave cloud radiative forcing at the top of atmosphere are changed by - 2.5 and + 1.3 W m-2, respectively, by emission changes from pre-industrial to present day, and an increased cloud-top height indicates invigorated mid-latitude cyclones. The overall increased precipitation and poleward heat transport reflect intensification of the Pacific storm track by anthropogenic aerosols. Hence, this work provides for the first time a global perspective of the impacts of Asian pollution outflows from GCMs. Furthermore, our results suggest that the multi-scale modeling framework is essential in producing the aerosol invigoration effect of deep convective clouds on the global scale.

Wang, Yuan; Wang, Minghuai; Zhang, Renyi; Ghan, Steven J.; Lin, Yun; Hu, Jiaxi; Pan, Bowen; Levy, Misti; Jiang, Jonathan; Molina, Mario J.

2014-05-13T23:59:59.000Z

489

Coupled problem of point force and generalized point source of diffusive substance or heat at the surface of semi-infinite transversely isotropic material  

SciTech Connect (OSTI)

For a three-dimensional semi-infinite transversely isotropic material, Green's functions (that give the full set of coupled fields due to the arbitrarily oriented point force and concentrated generalized point source, that represents either the diffusive chemical substance concentration or heat applied at the boundary of the half-space) are derived in elementary functions in a simple way, using methods of the potential theory. In the course of the analysis we derived the general solution of the field equations, represented in terms of four harmonic potential functions, which may also be relevant to other problems of chemical concentration or heat diffusion. These solutions constitute generalization of Boussinesq's and Cerruti s problems of elasticity for the chemically diffusive and/or thermoelastic materials.

Karapetian, E. [Suffolk University, Boston; Kalinin, Sergei V [ORNL

2011-01-01T23:59:59.000Z

490

Three-dimensional track reconstruction for directional Dark Matter detection  

SciTech Connect (OSTI)

Directional detection of Dark Matter is a promising search strategy. However, to perform such detection, a given set of parameters has to be retrieved from the recoiling tracks: direction, sense and position in the detector volume. In order to optimize the track reconstruction and to fully exploit the data of forthcoming directional detectors, we present a likelihood method dedicated to 3D track reconstruction. This new analysis method is applied to the MIMAC detector. It requires a full simulation of track measurements in order to compare real tracks to simulated ones. We conclude that a good spatial resolution can be achieved, i.e. sub-mm in the anode plane and cm along the drift axis. This opens the possibility to perform a fiducialization of directional detectors. The angular resolution is shown to range between 20° to 80°, depending on the recoil energy, which is however enough to achieve a high significance discovery of Dark Matter. On the contrary, we show that sense recognition capability of directional detectors depends strongly on the recoil energy and the drift distance, with small efficiency values (50%–70%). We suggest not to consider this information either for exclusion or discovery of Dark Matter for recoils below 100 keV and then to focus on axial directional data.

Billard, J.; Mayet, F.; Santos, D., E-mail: billard@lpsc.in2p3.fr, E-mail: mayet@lpsc.in2p3.fr, E-mail: santos@lpsc.in2p3.fr [Laboratoire de Physique Subatomique et de Cosmologie, Université Joseph Fourier Grenoble 1, CNRS/IN2P3, Institut Nationale Polytechnique de Grenoble, 53 rue des Martyrs, Grenoble (France)

2012-04-01T23:59:59.000Z

491

Chapter 4 - Solid-State Nuclear Track Detectors  

Science Journals Connector (OSTI)

Part 1 describes the elements of solid-state nuclear track detectors (SSNTDs) including detector materials (crystals, glasses, and polymers), recordable particles (protons, ?-particles, fission fragments, heavy ions, neutrons, and exotic particles), track formation mechanisms, track etching, particle identification, and track measuring instruments. Part 2 describes applications in nuclear physics, astrophysics, cosmic-ray physics, fission track dating and geothermal chronology, medical science, radiation dosimetry, Rn monitoring, environmental sciences, and nanotechnology. Attention is paid to the newly emerged fields: laser acceleration, laser inertial-confinement fusion, nuclear forensics, and safeguards. The internal structure in this chapter is closely linked between materials, particles, and applications; when describing one of these, the other two are introduced. The above structure of this chapter was organized for the benefit of the reader by providing the current principles and techniques together with the broad research fields of application of SSNTDs. Numerous detector parameters and applications are provided. Essential literature references are provided for detailed information on breakthroughs and recent advances.

Shi-Lun Guo; Bao-Liu Chen; S.A. Durrani

2012-01-01T23:59:59.000Z

492

Distributed target tracking and boundary estimation in wireless sensor networks  

Science Journals Connector (OSTI)

We study the problem of target tracking and boundary detection of a substance diffusing from a mobile source using a wireless sensor network. We present a Prediction-based Mobility Adaptive Tracking (P-MAT algorithm to study the tradeoff among energy, accuracy of tracking, coverage and boundary estimation. P-MAT minimises overall energy consumption by incorporating adaptivity in two forms: (1) the size of the active region and (2) modulation of the sampling rate. It uses adaptive Kalman filtering to predict the target's future location and velocity. The predicted target location determines a set of sensors surrounding that location to be activated known as the active region. Sensors in the active region are responsible for target tracking and boundary detection. In this article, we include dynamic boundary estimation. Boundary estimation in many situations can be performed efficiently using a subset of nodes within the vicinity of the phenomenon. This subset of nodes in our algorithm is the set of nodes in the active region. As the substance spreads, sensors in the active region determine if additional sensors outside of the active region are needed to enclose the boundary. Results from simulation experiments show that P-MAT can perform both tracking and boundary.

Jennifer Yick; Biswanath Mukherjee; Dipak Ghosal

2008-01-01T23:59:59.000Z

493

Model based Open-loop Correction of Heliostat Tracking Errors  

Science Journals Connector (OSTI)

Abstract The heliostat field is by far the most expensive part of a typical Central Receiver (CR) plant. To achieve high conversion efficiencies, heliostats with very high tracking accuracy are needed, but errors are introduced due to manufacturing-, installation- and alignment tolerances as well control system granularity. Mechanical error profiles are unique for every heliostat and cause tracking errors that vary over the course of days and seasons and therefore cannot be corrected by once-off angle offset corrections. Developments in microcontroller technology drives decentralization of CR control systems. Powerful open-loop error correction algorithms can run on low cost heliostat local controllers, enabling high tracking accuracy from lower cost heliostats with reduced tolerances. A prototype array of 18 heliostats, each 1 ft2 in size, was constructed to validate the field control system functionality and final tracking accuracy. Tests were conducted at SU's solar laboratory with an 18m tower and heliostat slant ranges of around 40 m. Prototype experiments indicate a daily open-loop RMS normal vector tracking error below 1 mrad. Strong correlation exists between successive days’ residual error curves, indicating that further model refinements may be possible, including frequency spectrum analysis (using FFT) to identify and correct for mechanism-specific periodic drivetrain errors.

K. Malan; P. Gauché

2014-01-01T23:59:59.000Z

494

Concentrator Photovoltaic System Basics | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Concentrator Photovoltaic System Basics Concentrator Photovoltaic System Basics Concentrator Photovoltaic System Basics August 20, 2013 - 4:12pm Addthis Concentrator photovoltaic (PV) systems use less solar cell material than other PV systems. PV cells are the most expensive components of a PV system, on a per-area basis. A concentrator makes use of relatively inexpensive materials such as plastic lenses and metal housings to capture the solar energy shining on a fairly large area and focus that energy onto a smaller area-the solar cell. One measure of the effectiveness of this approach is the concentration ratio-in other words, how much concentration the cell is receiving. Concentrator PV systems have several advantages over flat-plate systems. First, concentrator systems reduce the size or number of cells needed and

495

Regional Atmospheric Transport Code for Hanford Emission Tracking, Version 2(RATCHET2)  

SciTech Connect (OSTI)

This manual describes the atmospheric model and computer code for the Atmospheric Transport Module within SAC. The Atmospheric Transport Module, called RATCHET2, calculates the time-integrated air concentration and surface deposition of airborne contaminants to the soil. The RATCHET2 code is an adaptation of the Regional Atmospheric Transport Code for Hanford Emissions Tracking (RATCHET). The original RATCHET code was developed to perform the atmospheric transport for the Hanford Environmental Dose Reconstruction Project. Fundamentally, the two sets of codes are identical; no capabilities have been deleted from the original version of RATCHET. Most modifications are generally limited to revision of the run-specification file to streamline the simulation process for SAC.

Ramsdell, James V.; Rishel, Jeremy P.

2006-07-01T23:59:59.000Z

496

Planar photovoltaic solar concentrator module  

DOE Patents [OSTI]

A planar photovoltaic concentrator module for producing an electrical signal from incident solar radiation includes an electrically insulating housing having a front wall, an opposing back wall and a hollow interior. A solar cell having electrical terminals is positioned within the interior of the housing. A planar conductor is connected with a terminal of the solar cell of the same polarity. A lens forming the front wall of the housing is operable to direct solar radiation incident to the lens into the interior of the housing. A refractive optical element in contact with the solar cell and facing the lens receives the solar radiation directed into the interior of the housing by the lens and directs the solar radiation to the solar cell to cause the solar cell to generate an electrical signal. An electrically conductive planar member is positioned in the housing to rest on the housing back wall in supporting relation with the solar cell terminal of opposite polarity. The planar member is operable to dissipate heat radiated by the solar cell as the solar cell generates an electrical signal and further forms a solar cell conductor connected with the solar cell terminal to permit the electrical signal generated by the solar cell to be measured between the planar member and the conductor. 5 figs.

Chiang, C.J.

1992-12-01T23:59:59.000Z

497

Form drag at Three Tree Point  

E-Print Network [OSTI]

form drag with bottom pressure sensors #12;Oscillatory dynamics tidal energy converted to internal waves, eddies and mixing no tidally averaged work done on system slack tide: background tilt flood & ebb Puget Sound, WA Point Three Tree Pressure sensors (PPODs) at Three Tree Point (TTP) PPODs #12;PPOD

Warner, Sally

498

The Control Point Policy Stanley B. Gershwin  

E-Print Network [OSTI]

://web.mit.edu/manuf-sys Massachusetts Institute of Technology Spring, 2012 The Control Point Policy 1/33 Copyright c 2012 Stanley B-time calculation. The purpose of real-time scheduling in a factory is to make decisions in response to random failures, change in demand, etc. The Control Point Policy 4/33 Copyright c 2012 Stanley B. Gershwin. All

Gershwin, Stanley B.

499

Multiple Point Schemes for Corank 1 Maps  

Science Journals Connector (OSTI)

......Multiple Point Schemes for Corank 1 Maps Washington Luiz Marar David Mond...MULTIPLE POINT SCHEMES FOR CORANK 1 MAPS WASHINGTON LUIZ MARAR AND DAVID...1). Finally, denote the map Cn "1+fc -> C*~m defined...g:(Cn -1+k ,0) *C\\gis G-invariant}. Then

Washington Luiz Marar; David Mond

1989-06-01T23:59:59.000Z

500

Analysis of the parallel distinguished point tradeoff  

Science Journals Connector (OSTI)

Cryptanalytic time memory tradeoff algorithms are tools for quickly inverting one-way functions and many consider the rainbow table method to be the most efficient tradeoff algorithm. However, it was recently announced, mostly based on experiments, that ... Keywords: distinguished point, parallel distinguished point, rainbow table, time memory tradeoff

Jin Hong; Ga Won Lee; Daegun Ma

2011-12-01T23:59:59.000Z