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1

Uncertainty propagation in a model for the estimation of the1 ground level concentration of dioxin/furans emitted from a waste2  

E-Print Network [OSTI]

Uncertainty propagation in a model for the estimation of the1 ground level concentration of dioxin concentration of dioxin/furans emitted from a waste gasification plant. Under the17 condition of insufficient

Paris-Sud XI, Université de

2

Estimation of Carbon Monoxide and Carbon Dioxide at Sub-ppm Level Concentrations in Ammonia Synthesis Gas  

Science Journals Connector (OSTI)

......can be handled per analysis. The ammonia synthesis...conditioning of I2O5 reactors or to marginal flow...20%. Thus, the reliability of the method depends...practice for the analysis of trace impurities...estimated from a single analysis the method of converting...to CO2 using I2O5 reactor (11) after its......

K. Annaji Rao; K.K. Pushpa; Hari Mohan; R.M. Iyer

1978-07-01T23:59:59.000Z

3

ARM - Lesson Plans: Estimating Local Sea Level  

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

Lesson Plans Lesson Plans: Estimating Local Sea Level Objective The objective is to train students' skills in observing the local environment based upon the sea level...

4

Estimating the Economic Cost of Sea-Level Rise  

E-Print Network [OSTI]

To improve the estimate of economic costs of future sea-level rise associated with global climate change,

Sugiyama, Masahiro.

5

Estimating background concentrations of inorganic analytes from on-site soil sample data  

SciTech Connect (OSTI)

At Superfund sites, regulatory agencies have commonly required that an extensive off-site study be performed to identify background concentrations of chemicals of concern in the sample medium for the purpose of establishing action levels. However, in an effort to save time and money, graphic statistics were used to estimate background concentrations of inorganic chemicals from 127 on-site soil samples collected at Andersen Air Force Base, a Superfund site on Guam. The statistical method used for this evaluation utilized probability plots, and was a modification of a technique used in mineral exploration to identify anomalous and background geochemical data. This paper provides an overview of the modified statistical method and its application at Andersen Air Force Base, and the results of the evaluation, including estimated background concentrations.

Cook, P.D. [ICF Kaiser Engineers, Inc., Pittsburgh, PA (United States)

1998-12-31T23:59:59.000Z

6

Blood lead concentrations in marine mammals validate estimates of 10{sup 2}- to 10{sup 3}-fold increase in human blood lead concentrations  

SciTech Connect (OSTI)

Measurements of ultra-low ambient blood lead (PbB) concentrations (mean {+-} SD = 0.13 {+-} 0.06 {micro}g/dL) in Northern elephant seals (Mirounga angustirostris) validate previous estimates of ultra-low PbB levels in preindustrial humans. These estimates had been unsubstituted, since PbB levels in this range had never been measured in any organisms prior to this study. Similarities in PbB levels among these contemporary and preindustrial mammals are consistent with similarities in their measured and estimated lead exposures, respectively. The marginally higher PbB levels and rates of lead exposure in contemporary marine mammals are, also, consistent with lead isotopic composition analyses that indicate their PbB levels have been elevated from exposure to industrial lead. Consequently, these analyses substantiate concerns that current baseline PbB levels in humans, which are estimated to be two to three orders of magnitude above natural levels, may still constitute public health risks.

Owen, B.D.; Flegal, A.R. [Univ. of California, Santa Cruz, CA (United States)] [Univ. of California, Santa Cruz, CA (United States)

1998-08-01T23:59:59.000Z

7

Modeling spatial patterns in soil arsenic to estimate natural baseline concentrations  

SciTech Connect (OSTI)

ABSTRACT Arsenic in soil is an important public health concern. Toxicity guidelines and models based on laboratory studies (i.e., U.S. EPA’s Integrated Risk Information System) should consider natural soil As concentrations to avoid unnecessary remediation burdens on society. We used soil and stream sediment samples from the USGS National Geochemical Survey database to assess the spatial distribution of natural As in a 1.16E+5 km2 area. Samples were collected at 348 soil and 144 stream locations, providing approximately one sample for every 290 km2. Sample sites were selected to minimize the potential influence of anthropogenic inputs. Samples were processed using acid digestion of whole samples (concentrated HCl and ascorbic acid) and concentrations were measured using hydride-generation atomic absorption spectrometry. Soil As ranged from 2.0 to 45.6 mg kg-1. Geostatistical techniques were used to model and map the spatial variability of As. The mean and variance at unsampled locations were estimated using sequential Gaussian simulation. Five areas of elevated concentration (> the median of 10 mg kg-1) were identified and the relationships to geologic parent materials, glacial sedimentation patterns, and soil conditions interpreted. Our results showed As concentrations >10 mg kg-1 were common, and >20 mg kg-1 were not unusual for the central and west central portions of Ohio (USA). In contrast, concentrations <4 mg kg-1 were rare. Measured concentrations typically exceeded the soil As human generic screening levels of 0.39 mg/kg (1); the calculated value that corresponds to a cancer risk level of 1 in 1,000,000 for soil ingestion. Because the As content of Ohio soils is similar to many world soils, the USEPA generic soil screening level of 0.39 mg/kg is of little utility. A more useful and practical approach would be the uses of natural background levels. Regional soil As patterns based on geology and biogeochemistry and not political boundaries should be used for soil screening and other risk assessment determinations.

Venteris, Erik R.; Basta, Nicolas T.; Bigham, Jerry M.; Rea, Ron

2014-05-09T23:59:59.000Z

8

Inhalation and Ingestion Intakes with Associated Dose Estimates for Level II and Level III Personnel Using Capstone Study Data  

SciTech Connect (OSTI)

Depleted uranium (DU) intake rates and subsequent dose rates were estimated for personnel entering armored combat vehicles perforated with DU penetrators (level II and level III personnel) using data generated during the Capstone Depleted Uranium (DU) Aerosol Study. Inhalation intake rates and associated dose rates were estimated from cascade impactors worn by sample recovery personnel and from cascade impactors that served as area monitors. Ingestion intake rates and associated dose rates were estimated from cotton gloves worn by sample recovery personnel and from wipe test samples from the interior of vehicles perforated with large caliber DU munitions. The mean DU inhalation intake rate for level II personnel ranged from 0.447 mg h-1 based on breathing zone monitor data (in and around a perforated vehicle) to 14.5 mg h-1 based on area monitor data (in a perforated vehicle). The mean DU ingestion intake rate for level II ranged from 4.8 mg h-1 to 38.9 mg h-1 based on the wipe test data including surface to glove transfer factors derived from the Capstone data. Based on glove contamination data, the mean DU ingestion intake rates for level II and level III personnel were 10.6 mg h-1 was and 1.78 mg h-1, respectively. Effective dose rates and peak kidney uranium concentration rates were calculated based on the intake rates. The peak kidney uranium concentration rate cannot be multiplied by the total exposure duration when multiple intakes occur because uranium will clear from the kidney between the exposures.

Szrom, Fran; Falo, Gerald A.; Lodde, Gordon M.; Parkhurst, MaryAnn; Daxon, Eric G.

2009-03-01T23:59:59.000Z

9

Development and Application of a Model to Estimate Wastewater Treatment Plant Prescription Pharmaceutical Influent Loadings and Concentrations  

Science Journals Connector (OSTI)

A mass balance model was developed to estimate prescription pharmaceutical loadings to municipal wastewater treatment plants via computation of influent concentrations (C IN). Model estimates of C

Karl J. Ottmar; Lisa M. Colosi…

2010-05-01T23:59:59.000Z

10

A Comparison of Load Estimates Using Total Suspended Solids and Suspended-Sediment Concentration Data  

E-Print Network [OSTI]

-sediment concentration (SSC) data and the ramifications of using each type of data to estimate sediment loads from paired TSS and SSC data, to annual loads computed by the U.S. Geological Survey (USGS) using traditional techniques and SSC data. Load estimates were compared for 10 stations where sufficient TSS and SSC

Torgersen, Christian

11

Estimating suspended sediment concentrations in areas with limited hydrological data using a mixed-effects model  

E-Print Network [OSTI]

Estimating suspended sediment concentrations in areas with limited hydrological data using a mixed of Geography, Simon Fraser University, Burnaby, British Columbia, Canada Abstract: Sediment rating curves are commonly used to estimate the suspended sediment load in rivers and streams under the assumption

Venditti, Jeremy G.

12

First estimates of mass concentrations from Eyjafjll over The Netherlands using PCA on  

E-Print Network [OSTI]

First estimates of mass concentrations from Eyjafjöll over The Netherlands using PCA on multi The Netherlands a limit has been proposed of 1 mg m-3. Here, we present preliminary results from Raman lidar measurements made in central Netherlands. A first estimate of the maximum mass loading that occurred over

Graaf, Martin de

13

Ground-level nitrogen dioxide concentrations inferred from the satellite-borne Ozone Monitoring Instrument  

E-Print Network [OSTI]

Ground-level nitrogen dioxide concentrations inferred from the satellite-borne Ozone Monitoring; published 28 August 2008. [1] We present an approach to infer ground-level nitrogen dioxide (NO2), Ground-level nitrogen dioxide concentrations inferred from the satellite-borne Ozone Monitoring

Martin, Randall

14

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

15

Information fusion for estimation of summer MIZ ice concentration from SAR imagery  

E-Print Network [OSTI]

In this paper we define the concept of information fusion and show how we used it to estimate summer sea ice concentration in the marginal ice zone (MIZ) from single-channel SAR satellite imagery, We used data about melt stage, wind speed...

Haverkamp, Donna S.; Tsatsoulis, Costas

1999-05-01T23:59:59.000Z

16

Screening-level approach for estimating contaminant export from tributaries  

SciTech Connect (OSTI)

The in-place pollutant export model (IPX) is a screening-level model for estimating contaminant export from tributaries with contaminated sediments to receiving waterbodies. IPX is a modified version of the USEPA`s WASP4 modeling framework. IPX synthesizes sediment transport processes for sediment aging, decreased sediment resuspendability with increasing age, and resuspension of freshly deposited sediments as a function of water velocity, into an expanded WASP4 contaminant transport and fate chassis while retaining the computational flexibility of the original framework. These process descriptions are needed to accurately simulate contaminant transport and substantially improve the framework for application to tributary systems subject to significant deposition and resuspension events. The potential for applying IPX is broad; water quality impairments attributable to contaminated sediments are widespread due to discharges from industry, agriculture, and mining and ore processing. IPX has been successfully applied to the upper and lower Fox River in Wisconsin, and the Buffalo and Oswego Rivers in New York, all impaired by contaminated sediments.

Velleux, M. [Wisconsin Dept. of Natural Resources, Madison, WI (United States); Gailani, J. [Army Corps of Engineers, Vicksburg, MS (United States); Endicott, D. [EPA Large Lakes Research Station, Grosse Ile, MI (United States)

1996-06-01T23:59:59.000Z

17

Impact of the 2011 southern US drought on ground-level fine aerosol concentration in summertime  

Science Journals Connector (OSTI)

This study investigates the impacts of the 2011 severe drought in the southern United States (U.S.) on ground-level fine aerosol (PM2.5) concentrations in the summer. The changes in surface concentrations and planetary boundary layer (PBL) budget ...

Yuxuan Wang; Yuanyu Xie; Libao Cai; Wenhao Dong; Qianqian Zhang; Lin Zhang

18

Meta-Analysis of Estimates of Life Cycle Greenhouse Gas Emissions from Concentrating Solar Power: Preprint  

SciTech Connect (OSTI)

In reviewing life cycle assessment (LCA) literature of utility-scale CSP systems, this analysis focuses on clarifying central tendency and reducing variability in estimates of life cycle greenhouse gas (GHG) emissions through a meta-analytical process called harmonization. From 125 references reviewed, 10 produced 36 independent GHG emission estimates passing screens for quality and relevance: 19 for parabolic trough technology and 17 for power tower technology. The interquartile range (IQR) of published GHG emission estimates was 83 and 20 g CO2eq/kWh for trough and tower, respectively, with medians of 26 and 38 g CO2eq/kWh. Two levels of harmonization were applied. Light harmonization reduced variability in published estimates by using consistent values for key parameters pertaining to plant design and performance. Compared to the published estimates, IQR was reduced by 69% and median increased by 76% for troughs. IQR was reduced by 26% for towers, and median was reduced by 34%. A second level of harmonization was applied to five well-documented trough LC GHG emission estimates, harmonizing to consistent values for GHG emissions embodied in materials and from construction activities. As a result, their median was further reduced by 5%, while the range increased by 6%. In sum, harmonization clarified previous results.

Heath, G. A.; Burkhardt, J. J.

2011-09-01T23:59:59.000Z

19

Estimating Radiological Doses to Predators Foraging in a Low-Level Radioactive Waste Management Area  

SciTech Connect (OSTI)

Since 1957, Los Alamos National Laboratory has operated Area G as its low-level, solid radioactive waste management and disposal area. Although the waste management area is developed, plants, small mammals, and avian and mammalian predators still occupy the less disturbed and revegetated portions of the land. For almost a decade, we have monitored the concentrations of selected radionuclides in soils, plants, and small mammals at Area G. The radionuclides tritium, plutonium-238, and plutonium-239 are regularly found at levels above regional background in all three media. Based on radionuclide concentrations in mice collected from 1994 to 1999, we calculated doses to higher trophic levels (owl, hawk, kestrel, and coyote) that forage on the waste management area. These predators play important functions in the regional ecosystems and are an important part of local Native American traditional tales that identify the uniqueness of their culture. The estimated doses are compared to Department of Energy's interim limit of 0.1 rad/day for the protection of terrestrial wildlife. We used exposure parameters that were derived from the literature for each receptor, including Environmental Protection Agency's exposure factors handbook. Estimated doses to predators ranged from 9E-06 to 2E-04 rad/day, assuming that they forage entirely on the waste management area. These doses are greater than those calculated for predators foraging exclusively in reference areas, but are still well below the interim dose limit. We believe that these calculated doses represent upper-bound estimates of exposure for local predators because the larger predators forage over areas that are much greater than the 63-acre waste management area. Based on these results, we concluded that predators foraging on this area do not face a hazard from radiological exposure under current site conditions.

L.Soholt; G.Gonzales; P.Fresquez; K.Bennett; E.Lopez

2003-03-01T23:59:59.000Z

20

DEVELOPING CORRIDOR-LEVEL TRUCK TRAVEL TIME ESTIMATES AND OTHER  

E-Print Network [OSTI]

by comparing estimated travel times during a winter weather-induced delay. The analysis showed that corridor given on increased sensor spacing and filter improvement. Finally, potential performance metrics

Bertini, Robert L.

Note: This page contains sample records for the topic "level concentration estimated" 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

Estimating the economic cost of sea-level rise Masahiro Sugiyama  

E-Print Network [OSTI]

Estimating the economic cost of sea-level rise by Masahiro Sugiyama Bachelor of Science in Earth To improve the estimate of economic costs of future sea-level rise associated with global climate change, the thesis generalizes the sea-level rise cost function originally proposed by Fankhauser, and applies

22

Derived concentration guideline levels for Argonne National Laboratory's building 310 area.  

SciTech Connect (OSTI)

The derived concentration guideline level (DCGL) is the allowable residual radionuclide concentration that can remain in soil after remediation of the site without radiological restrictions on the use of the site. It is sometimes called the single radionuclide soil guideline or the soil cleanup criteria. This report documents the methodology, scenarios, and parameters used in the analysis to support establishing radionuclide DCGLs for Argonne National Laboratory's Building 310 area.

Kamboj, S., Dr.; Yu, C ., Dr. (Environmental Science Division)

2011-08-12T23:59:59.000Z

23

A SURVEY OF STATE-LEVEL COST ESTIMATES OF RENEWABLES PORTFOLIO STANDARDS  

E-Print Network [OSTI]

LEVEL COST ESTIMATES OF RENEWABLES PORTFOLIO STANDARDS Galenthe incremental cost of renewables portfolio standards (RPS)Washington DC have adopted renewables portfolio standards (

Barbose, Galen

2014-01-01T23:59:59.000Z

24

Ground level concentration of sulfur dioxide at Kuwait`s major population centers during the oil-field fires  

SciTech Connect (OSTI)

During the Iraqi occupation, Kuwait`s oil wells were ignited. the fires were damaging to the country`s oil resources and air quality. The impact of the oil-field fires on the air quality was studied to determine the level of exposure to pollutants in major population centers. The period of July-September 1991 was selected for examination. A mathematical model was used to compute the ground-level concentration isopleths. The results of these computations are supported by significant concentrations measured and reported by the Environmental Protection Council, Kuwait. The ground-level concentrations of sulfur dioxide in the major population centers, whether measure or estimated, were less than the ambient standards of the U.S. Environmental Protection Agency`s air pollution index. The dispersive characteristics were classified according to wind conditions. The results of this assessment provide historical data on Kuwait`s oil fires and may be useful in assessing risks resulting from this catastrophe. 6 refs., 10 fig., 2 tab.

Al-Ajmi, D.N.; Marmoush, Y.R. [Kuwait Institute for Scientific Research (Kuwait)] [Kuwait Institute for Scientific Research (Kuwait)

1996-08-01T23:59:59.000Z

25

Estimating the economic cost of sea-level rise  

E-Print Network [OSTI]

(cont.) In the case of a classical linear sea-level rise of one meter per century, the use of DIVA generally decreases the protection fraction of the coastline, and results in a smaller protection cost because of high ...

Sugiyama, Masahiro, Ph. D. Massachusetts Institute of Technology

2007-01-01T23:59:59.000Z

26

Using ADCP Background Sound Levels to Estimate Wind Speed  

Science Journals Connector (OSTI)

It is well known that ambient sound is generated by wind through the process of wave breaking and bubble injection. The resulting sound levels are highly correlated with wind speed and, even though the physical process is not fully understood, ...

Len Zedel

2001-11-01T23:59:59.000Z

27

ANEMOS: A computer code to estimate air concentrations and ground deposition rates for atmospheric nuclides emitted from multiple operating sources  

SciTech Connect (OSTI)

This code estimates concentrations in air and ground deposition rates for Atmospheric Nuclides Emitted from Multiple Operating Sources. ANEMOS is one component of an integrated Computerized Radiological Risk Investigation System (CRRIS) developed for the US Environmental Protection Agency (EPA) for use in performing radiological assessments and in developing radiation standards. The concentrations and deposition rates calculated by ANEMOS are used in subsequent portions of the CRRIS for estimating doses and risks to man. The calculations made in ANEMOS are based on the use of a straight-line Gaussian plume atmospheric dispersion model with both dry and wet deposition parameter options. The code will accommodate a ground-level or elevated point and area source or windblown source. Adjustments may be made during the calculations for surface roughness, building wake effects, terrain height, wind speed at the height of release, the variation in plume rise as a function of downwind distance, and the in-growth and decay of daughter products in the plume as it travels downwind. ANEMOS can also accommodate multiple particle sizes and clearance classes, and it may be used to calculate the dose from a finite plume of gamma-ray-emitting radionuclides passing overhead. The output of this code is presented for 16 sectors of a circular grid. ANEMOS can calculate both the sector-average concentrations and deposition rates at a given set of downwind distances in each sector and the average of these quantities over an area within each sector bounded by two successive downwind distances. ANEMOS is designed to be used primarily for continuous, long-term radionuclide releases. This report describes the models used in the code, their computer implementation, the uncertainty associated with their use, and the use of ANEMOS in conjunction with other codes in the CRRIS. A listing of the code is included in Appendix C.

Miller, C.W.; Sjoreen, A.L.; Begovich, C.L.; Hermann, O.W.

1986-11-01T23:59:59.000Z

28

The Concentration Of Tritium In Urine And Internal Radiation Dose Estimation Of PTNBR Radiation Workers  

SciTech Connect (OSTI)

The operation of Triga 2000 reactor in Nuclear Technology Center for Materials and Radiometry (PTNBR BATAN) normally produce tritium radionuclide which is the activation product of deuterium atom in reactor primary cooling water. According to previous monitoring, tritium was detected with the concentration of 8.236{+-}0.677 kBq/L and 1.704{+-}0.046 Bq/L in the primary cooling water and in reactor hall air, respectively. The tritium in reactor hall air chronically can be inhaled by the workers. In this research, tritium content in radiation workers' urine was determined to estimate the internal radiation doses received by the workers. About 50-100 mL of urine samples were collected from 48 PTNBR workers that is classified as 24 radiation workers and 24 administration staffs as a control. Urine samples of 25 mL were then prepared by active charcoal and KMnO{sub 4} addition and followed with complete distillation. The 2 mL of distillate was added with 13 mL scintillator, shaked vigorously and remained in cool and dark condition for about 24 hours. The tritium in the samples was then measured using liquid scintillation counter (LSC) for 1 hour. From the measurement results it was obtained that the tritium concentration in the urine of radiation workers were in the range of not detected and 5.191 Bq/mL, whereas in the administration staffs the concentration were between not detected and 4.607 Bq/mL. Internally radiation doses were calculated using the tritium concentration data, and it was found the averages about 0.602 {mu}Sv/year and 0.532 {mu}Sv/year for radiation workers and administration staffs, respectively. The doses received by the workers were lower than that of the permissible doses from tritium, i.e. 40 {mu}Sv/year.

Tjahaja, Poppy Intan; Sukmabuana, Putu; Aisyah, Neneng Nur [PTNBR BATAN, Jl. Tamansari no. 71, Bandung 40132 (Indonesia)

2010-12-23T23:59:59.000Z

29

RADIOACTIVE HIGH LEVEL WASTE TANK PITTING PREDICTIONS: AN INVESTIGATION INTO CRITICAL SOLUTION CONCENTRATIONS  

SciTech Connect (OSTI)

A series of cyclic potentiodynamic polarization tests was performed on samples of ASTM A537 carbon steel in support of a probability-based approach to evaluate the effect of chloride and sulfate on corrosion the steel?s susceptibility to pitting corrosion. Testing solutions were chosen to systemically evaluate the influence of the secondary aggressive species, chloride, and sulfate, in the nitrate based, high-level wastes. The results suggest that evaluating the combined effect of all aggressive species, nitrate, chloride, and sulfate, provides a consistent response for determining corrosion susceptibility. The results of this work emphasize the importance for not only nitrate concentration limits, but also chloride and sulfate concentration limits.

Hoffman, E.

2012-11-08T23:59:59.000Z

30

A model-based technique for real-time estimation of absolute fluorine concentration in a CF4/Ar plasma  

E-Print Network [OSTI]

A model-based technique for real-time estimation of absolute fluorine concentration in a CF4/Ar for quantitative interpretation of actinometric data to deduce bulk plasma fluorine concentration in a CF4/Ar, for application of real-time feedback control to plasma etching. Based upon a model of CF4 chemistry reaction

Terry, Fred L.

31

Dynamic response of marshes to perturbations in suspended sediment concentrations and rates of relative sea level rise  

E-Print Network [OSTI]

of relative sea level rise A. D'Alpaos,1 S. M. Mudd,2,3 and L. Carniello4 Received 18 May 2011; revised 5 in suspended sediment concentrations, plant productivity, and the rate of relative sea level rise (RSLR in suspended sediment concentrations and rates of relative sea level rise, J. Geophys. Res., 116, F04020, doi

32

Improving clay content measurement in oxidic and volcanic ash soils of Hawaii by increasing dispersant concentration and ultrasonic energy levels  

Science Journals Connector (OSTI)

Abstract Quantifying clay content is a fundamental step in predicting and managing soil behaviors such as nutrient and water retention. However, clay measurements are underestimated when using standard methods of dispersion in soils rich in oxides and volcanic ash-derived non-crystalline minerals. Increasing levels of the chemical dispersant and ultrasonic energy are two simple techniques found to increase dispersion and clay measurements in temperate soils, but their effects are less known for oxidic and volcanic ash soils. In this study we investigated the effects of increasing dispersion concentration and ultrasonic energy on clay measurements for a range of oxidic and volcanic ash soils from Hawaii. While doubling and tripling the standard sodium hexametaphosphate concentration of 0.441 g L? 1 did not increase estimates of clay content, increasing levels of ultrasonic energy up to 1600 J mL? 1 significantly increased measured clay content for all oxide and volcanic ash soils. The response to ultrasonication was dependent on soil carbon, oxide content, and surface charge, with more energy needed to disperse soils higher in carbon, oxides, and positive charge. Scanning electron microscopy revealed damage to the sand fraction in some soils when ultrasonicated, but the extent of this damage was viewed as negligible. Porous sand-sized particles resembling pumice grains were also observed in some soils, suggesting that conventional particle size analysis and clay interpretations may not adequately describe surface related behaviors.

Joshua H.S. Silva; Jonathan L. Deenik; Russell S. Yost; Gregory L. Bruland; Susan E. Crow

2015-01-01T23:59:59.000Z

33

Improved Tropical Cyclone Flight-Level Wind Estimates Using Routine Infrared Satellite Reconnaissance  

Science Journals Connector (OSTI)

A new and improved method to estimate the tropical cyclone flight-level winds using globally and routinely available tropical cyclone (TC) information and infrared (IR) satellite imagery is presented. The developmental data set is comprised of ...

John A. Knaff; Scott P. Longmore; Robert T. DeMaria; Debra A. Molenar

34

County-level Estimates for Carbon Distribution in U.S. Croplands, 1990-2005  

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

County-level Estimates for Carbon Distribution in U.S. Croplands, 1990-2005 County-level Estimates for Carbon Distribution in U.S. Croplands, 1990-2005 Tristram O. West Environmental Sciences Division, Oak Ridge National Laboratory Net Primary Productivity (NPP) for croplands can be estimated using a statistical method that includes factors for dry weight, harvest indices, and root:shoot ratios multiplied by yield data from the National Agricultural Statistics Service (NASS). This method has been documented and published by Prince et al. (2001), Hicke and Lobell (2004), and Hicke et al. (2004). We expanded this method by including factors for more crops and by using an estimated carbon content of 0.45 for agricultural crops to estimate (a) total net carbon uptake, (b) carbon in aboveground biomass, (c) carbon in belowground biomass, (d) carbon harvested and transported off

35

Estimating the Capacity Value of Concentrating Solar Power Plants: A Case Study of the Southwestern United States  

SciTech Connect (OSTI)

We estimate the capacity value of concentrating solar power (CSP) plants without thermal energy storage in the southwestern U.S. Our results show that CSP plants have capacity values that are between 45% and 95% of maximum capacity, depending on their location and configuration. We also examine the sensitivity of the capacity value of CSP to a number of factors and show that capacity factor-based methods can provide reasonable approximations of reliability-based estimates.

Madaeni, S. H.; Sioshansi, R.; Denholm, P.

2012-05-01T23:59:59.000Z

36

Abstract--Accurate recognition of air pollutants and estimation of their concentrations are critical for human health  

E-Print Network [OSTI]

Exposure to air pollutions has a serious effect on the health of humans and has become the leading cause Abstract--Accurate recognition of air pollutants and estimation of their concentrations of relevant gases. However, because there are several air pollutants that need to be monitored simultaneously

Mason, Andrew

37

Estimating concentrations of heat producing elements in the crust near the Sudbury Neutrino Observatory, Ontario, Canada  

E-Print Network [OSTI]

the concentrations of uranium and thorium in the crust must be determined precisely for the future geoneutrino with measure- ments on outcrop and core samples, and with heat flow data. The concentrations of uranium, thorium, and po- tassium from radiometric surveys are correlated with geology, but heat production

38

Parameter Estimates for High-Level Nuclear Transport in Fractured Porous Media  

E-Print Network [OSTI]

accurate description of the transport and dispersion of nuclear contam- ination through a granitic medium with a standard model for the transport and dispersion of a nuclear chain in an unfractured, singleParameter Estimates for High-Level Nuclear Transport in Fractured Porous Media Jim Douglas, Jr. #3

Douglas Jr., Jim

39

Use of Personal-Indoor-Outdoor Sulfur Concentrations to Estimate the Infiltration Factor and Outdoor Exposure Factor for Individual Homes and Persons  

Science Journals Connector (OSTI)

Use of Personal-Indoor-Outdoor Sulfur Concentrations to Estimate the Infiltration Factor and Outdoor Exposure Factor for Individual Homes and Persons ...

Lance Wallace; Ron Williams:?

2005-05-12T23:59:59.000Z

40

Preliminary estimates of cost savings for defense high level waste vitrification options  

SciTech Connect (OSTI)

The potential for realizing cost savings in the disposal of defense high-level waste through process and design modificatins has been considered. Proposed modifications range from simple changes in the canister design to development of an advanced melter capable of processing glass with a higher waste loading. Preliminary calculations estimate the total disposal cost (not including capital or operating costs) for defense high-level waste to be about $7.9 billion dollars for the reference conditions described in this paper, while projected savings resulting from the proposed process and design changes could reduce the disposal cost of defense high-level waste by up to $5.2 billion.

Merrill, R.A.; Chapman, C.C.

1993-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "level concentration estimated" 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

Cost estimate of high-level radioactive waste containers for the Yucca Mountain Site Characterization Project  

SciTech Connect (OSTI)

This report summarizes the bottoms-up cost estimates for fabrication of high-level radioactive waste disposal containers based on the Site Characterization Plan Conceptual Design (SCP-CD). These estimates were acquired by Babcock and Wilcox (B&S) under sub-contract to Lawrence Livermore National Laboratory (LLNL) for the Yucca Mountain Site Characterization Project (YMP). The estimates were obtained for two leading container candidate materials (Alloy 825 and CDA 715), and from other three vendors who were selected from a list of twenty solicited. Three types of container designs were analyzed that represent containers for spent fuel, and for vitrified high-level waste (HLW). The container internal structures were assumed to be AISI-304 stainless steel in all cases, with an annual production rate of 750 containers. Subjective techniques were used for estimating QA/QC costs based on vendor experience and the specifications derived for the LLNL-YMP Quality Assurance program. In addition, an independent QA/QC analysis is reported which was prepared by Kasier Engineering. Based on the cost estimates developed, LLNL recommends that values of $825K and $62K be used for the 1991 TSLCC for the spent fuel and HLW containers, respectively. These numbers represent the most conservative among the three vendors, and are for the high-nickel anstenitic steel (Alloy 825). 6 refs., 7 figs.

Russell, E.W.; Clarke, W. [Lawrence Livermore National Lab., CA (United States)] [Lawrence Livermore National Lab., CA (United States); Domian, H.A. [Babcock and Wilcox Co., Lynchburg, VA (United States)] [Babcock and Wilcox Co., Lynchburg, VA (United States); Madson, A.A. [Kaiser Engineers California Corp., Oakland, CA (United States)] [Kaiser Engineers California Corp., Oakland, CA (United States)

1991-08-01T23:59:59.000Z

42

Use of Personal-Indoor-Outdoor Sulfur Concentrations to Estimate the Infiltration Factor and Outdoor Exposure Factor for Individual Homes and Persons  

Science Journals Connector (OSTI)

Use of Personal-Indoor-Outdoor Sulfur Concentrations to Estimate the Infiltration Factor and Outdoor Exposure Factor for Individual Homes and Persons ... Indoor?outdoor comparisons of sulfur concentrations thus provide a direct way to estimate Finf for each individual home. ... Of 36 homes, 22 had intercepts not significantly different from zero, indicating no apparent source of sulfur in the home. ...

Lance Wallace; Ron Williams

2005-01-26T23:59:59.000Z

43

Survey of State-Level Cost and Benefit Estimates of Renewable Portfolio Standards  

SciTech Connect (OSTI)

Most renewable portfolio standards (RPS) have five or more years of implementation experience, enabling an assessment of their costs and benefits. Understanding RPS costs and benefits is essential for policymakers evaluating existing RPS policies, assessing the need for modifications, and considering new policies. This study provides an overview of methods used to estimate RPS compliance costs and benefits, based on available data and estimates issued by utilities and regulators. Over the 2010-2012 period, average incremental RPS compliance costs in the United States were equivalent to 0.8% of retail electricity rates, although substantial variation exists around this average, both from year-to-year and across states. The methods used by utilities and regulators to estimate incremental compliance costs vary considerably from state to state and a number of states are currently engaged in processes to refine and standardize their approaches to RPS cost calculation. The report finds that state assessments of RPS benefits have most commonly attempted to quantitatively assess avoided emissions and human health benefits, economic development impacts, and wholesale electricity price savings. Compared to the summary of RPS costs, the summary of RPS benefits is more limited, as relatively few states have undertaken detailed benefits estimates, and then only for a few types of potential policy impacts. In some cases, the same impacts may be captured in the assessment of incremental costs. For these reasons, and because methodologies and level of rigor vary widely, direct comparisons between the estimates of benefits and costs are challenging.

Heeter, J.; Barbose, G.; Bird, L.; Weaver, S.; Flores-Espino, F.; Kuskova-Burns, K.; Wiser, R.

2014-05-01T23:59:59.000Z

44

Estimates of Radioxenon Released from Southern Hemisphere Medical isotope Production Facilities Using Measured Air Concentrations and Atmospheric Transport Modeling  

SciTech Connect (OSTI)

Abstract The International Monitoring System (IMS) of the Comprehensive-Nuclear-Test-Ban-Treaty monitors the atmosphere for radioactive xenon leaking from underground nuclear explosions. Emissions from medical isotope production represent a challenging background signal when determining whether measured radioxenon in the atmosphere is associated with a nuclear explosion prohibited by the treaty. The Australian Nuclear Science and Technology Organisation (ANSTO) operates a reactor and medical isotope production facility in Lucas Heights, Australia. This study uses two years of release data from the ANSTO medical isotope production facility and Xe-133 data from three IMS sampling locations to estimate the annual releases of Xe-133 from medical isotope production facilities in Argentina, South Africa, and Indonesia. Atmospheric dilution factors derived from a global atmospheric transport model were used in an optimization scheme to estimate annual release values by facility. The annual releases of about 6.8×1014 Bq from the ANSTO medical isotope production facility are in good agreement with the sampled concentrations at these three IMS sampling locations. Annual release estimates for the facility in South Africa vary from 1.2×1016 to 2.5×1016 Bq and estimates for the facility in Indonesia vary from 6.1×1013 to 3.6×1014 Bq. Although some releases from the facility in Argentina may reach these IMS sampling locations, the solution to the objective function is insensitive to the magnitude of those releases.

Eslinger, Paul W.; Friese, Judah I.; Lowrey, Justin D.; McIntyre, Justin I.; Miley, Harry S.; Schrom, Brian T.

2014-04-06T23:59:59.000Z

45

County-level Estimates for Carbon Distribution in U.S. Croplands, 1990-2005 Method of Estimation  

E-Print Network [OSTI]

to estimate total above-ground biomass. Multiplying aboveground biomass with the root:shoot ratio provides an estimate of below-ground biomass. Finally, summing above- and below-ground biomass provides an estimate-carbon for U.S. crops. Crop Reporting units mass per unit (kg) Conversion to Dry matter Harvest Index Root

46

Estimate of the Potential Amount of Low-Level Waste from the Fukushima Prefecture - 12370  

SciTech Connect (OSTI)

The amount of waste generated by the cleanup of the Fukushima Prefecture (Fukushima-ken) following the releases from the Fukushima Daiichi nuclear power plant accident (March 2011) is dependent on many factors, including: - Contamination amounts; - Cleanup levels determined for the radioisotopes contaminating the area; - Future land use expectations and human exposure scenarios; - Groundwater contamination considerations; - Costs and availability of storage areas, and eventually disposal areas for the waste; and - Decontamination and volume reduction techniques and technologies used. For the purposes of estimating these waste volumes, Fukushima-ken is segregated into zones of similar contamination level and expected future use. Techniques for selecting the appropriate cleanup methods for each area are shown in a decision tree format. This approach is broadly applied to the 20 km evacuation zone and the total amounts and types of waste are estimated; waste resulting from cleanup efforts outside of the evacuation zone is not considered. Some of the limits of future use and potential zones where residents must be excluded within the prefecture are also described. The size and design of the proposed intermediate storage facility is also discussed and the current situation, cleanup, waste handling, and waste storage issues in Japan are described. The method for estimating waste amounts outlined above illustrates the large amount of waste that could potentially be generated by remediation of the 20 km evacuation zone (619 km{sup 2} total) if the currently proposed cleanup goals are uniformly applied. The Japanese environment ministry estimated in early October that the 1 mSv/year exposure goal would make the government responsible for decontaminating about 8,000 km{sup 2} within Fukushima-ken and roughly 4,900 km{sup 2} in areas outside the prefecture. The described waste volume estimation method also does not give any consideration to areas with localized hot spots. Land use and area dose rate estimates for the 20 km evacuation zone indicate there are large areas where doses to the public can be mitigated through methods other than removal and disposal of soil and other wastes. Several additional options for waste reduction can also be considered, including: - Recycling/reusing or disposing of as municipal waste material that can be unconditionally cleared; - Establishing additional precautionary (e.g., liners) and monitoring requirements for municipal landfills to dispose of some conditionally-cleared material; and - Using slightly-contaminated material in construction of reclamations, banks and roads. Waste estimates for cleanup will continue to evolve as decontamination plans are drafted and finalized. (authors)

Hill, Carolyn; Olson, Eric A.J.; Elmer, John [S.M. Stoller Corporation, Broomfield, Colorado 80021 (United States)

2012-07-01T23:59:59.000Z

47

FAST LEVEL SET ESTIMATION FROM PROJECTION MEASUREMENTS Kalyani Krishnamurthy, Waheed U. Bajwa, Rebecca Willett, and Robert Calderbank  

E-Print Network [OSTI]

focused on S can be collected immediately, resulting in an overall low radiation dose. (2) "PlugFAST LEVEL SET ESTIMATION FROM PROJECTION MEASUREMENTS Kalyani Krishnamurthy, Waheed U. Bajwa, Durham, NC 27708 ABSTRACT Estimation of the level set of a function (i.e., regions where the function

Willett, Rebecca

48

Ground-water levels and tritium concentrations at the Maxey Flats low-level radioactive waste disposal site near Morehead, Kentucky, June 1984 to April 1989  

SciTech Connect (OSTI)

The Maxey Flats disposal site, Kentucky encompasses about 280 acres near the edge of a flat-topped ridge. The ridge is underlain by fractured shale and sandstone beds of the Nancy Member and the Farmers Member of the Borden Formation of Mississippian age. Groundwater flow in the strata beneath the site occurs through fractures, and flow patterns are difficult to delineate. The potentiometric surface also is difficult to delineate because several saturated and unsaturated zones are present in the rocks. Generally, ground-water levels in wells intersecting permeable fractures fluctuated seasonally and were lowest from December through June and highest from July through November. Water levels in the disposal trenches fluctuations less than those in wells, and for most trenches the fluctuations were less than 0.5 foot. From June 1984 to April 1989, tritium concentrations in groundwater ranged from 0 to 2,402,200 picocuries/ml. The greatest and most variable tritium concentrations were in wells along the northwest side of the site. The major conduit of groundwater flow from the trenches in the northwestern part of the site is a fractured sandstone bed that forms the base of most trenches. Elsewhere along the site perimeter, elevated levels of tritium were not detected in wells, and mean tritium were not detected in wells, and mean tritium concentrations showed little change between 1986 and 1988.

Wilson, K.S.; Lyons, B.E. (Geological Survey, Reston, VA (United States))

1991-01-01T23:59:59.000Z

49

Radionuclide Concentrations in soils an Vegetation at Low-Level Radioactive Waste Disposal Area G During 2004  

SciTech Connect (OSTI)

Soil samples were collected at 15 locations and unwashed overstory and understory vegetation samples were collected at nine locations within and around the perimeter of Area G, the primary disposal facility for low-level radioactive solid waste at Los Alamos National Laboratory (LANL). These samples were analyzed for {sup 3}H, {sup 238}Pu, {sup 239,240}Pu, {sup 90}Sr, {sup 241}Am, {sup 137}Cs, {sup 234}U, {sup 235}U, and {sup 238}U. Soil samples collected at Area G contained detectable concentrations of 3H (27%), {sup 239,240}Pu (60%), {sup 238}Pu (40%), and {sup 241}Am (47%) above regional statistical reference levels (RSRLs). In contrast, the levels of {sup 137}Cs, {sup 90}Sr, and U in all of the soil samples at Area G were either nondetectable or within RSRLs. The highest levels of {sup 3}H in soils were detected in the southwestern portion of Area G near the {sup 3}H shafts, whereas the highest concentrations of the Pu isotopes were detected in the northern and northeastern portions. All concentrations of {sup 3}H and Pu in soils, however, were far below LANL screening action levels. As for vegetation, most radionuclides in/on plants were either nondetectable or within RSRLs. The exceptions were {sup 3}H in overstory and some understory vegetation, particularly in the southwestern portion of Area G, which correlated very well with the soils data in that area. Also, there was some foliar contamination from {sup 241}Am and Pu isotopes in/on a few plant samples--the highest concentrations occurring in the northern section of Area G.

P.R. Fresquez; E.A. Lopez

2004-11-01T23:59:59.000Z

50

Glass Property Data and Models for Estimating High-Level Waste Glass Volume  

SciTech Connect (OSTI)

This report describes recent efforts to develop glass property models that can be used to help estimate the volume of high-level waste (HLW) glass that will result from vitrification of Hanford tank waste. The compositions of acceptable and processable HLW glasses need to be optimized to minimize the waste-form volume and, hence, to save cost. A database of properties and associated compositions for simulated waste glasses was collected for developing property-composition models. This database, although not comprehensive, represents a large fraction of data on waste-glass compositions and properties that were available at the time of this report. Glass property-composition models were fit to subsets of the database for several key glass properties. These models apply to a significantly broader composition space than those previously publised. These models should be considered for interim use in calculating properties of Hanford waste glasses.

Vienna, John D.; Fluegel, Alexander; Kim, Dong-Sang; Hrma, Pavel R.

2009-10-05T23:59:59.000Z

51

ESTIMATING HIGH LEVEL WASTE MIXING PERFORMANCE IN HANFORD DOUBLE SHELL TANKS  

SciTech Connect (OSTI)

The ability to effectively mix, sample, certify, and deliver consistent batches of high level waste (HLW) feed from the Hanford double shell tanks (DSTs) to the Waste Treatment and Immobilization Plant (WTP) presents a significant mission risk with potential to impact mission length and the quantity of HLW glass produced. The Department of Energy's (DOE's) Tank Operations Contractor (TOC), Washington River Protection Solutions (WRPS) is currently demonstrating mixing, sampling, and batch transfer performance in two different sizes of small-scale DSTs. The results of these demonstrations will be used to estimate full-scale DST mixing performance and provide the key input to a programmatic decision on the need to build a dedicated feed certification facility. This paper discusses the results from initial mixing demonstration activities and presents data evaluation techniques that allow insight into the performance relationships of the two small tanks. The next steps, sampling and batch transfers, of the small scale demonstration activities are introduced. A discussion of the integration of results from the mixing, sampling, and batch transfer tests to allow estimating full-scale DST performance is presented.

THIEN MG; GREER DA; TOWNSON P

2011-01-13T23:59:59.000Z

52

Greater-than-Class C low-level radioactive waste characterization: Estimated volumes, radionuclide activities, and other characteristics. Revision 1  

SciTech Connect (OSTI)

The Department of Energy`s (DOE`s) planning for the disposal of greater-than-Class C low-level radioactive waste (GTCC LLW) requires characterization of the waste. This report estimates volumes, radionuclide activities, and waste forms of GTCC LLW to the year 2035. It groups the waste into four categories, representative of the type of generator or holder of the waste: Nuclear Utilities, Sealed Sources, DOE-Held, and Other Generator. GTCC LLW includes activated metals (activation hardware from reactor operation and decommissioning), process wastes (i.e., resins, filters, etc.), sealed sources, and other wastes routinely generated by users of radioactive material. Estimates reflect the possible effect that packaging and concentration averaging may have on the total volume of GTCC LLW. Possible GTCC mixed LLW is also addressed. Nuclear utilities will probably generate the largest future volume of GTCC LLW with 65--83% of the total volume. The other generators will generate 17--23% of the waste volume, while GTCC sealed sources are expected to contribute 1--12%. A legal review of DOE`s obligations indicates that the current DOE-Held wastes described in this report will not require management as GTCC LLW because of the contractual circumstances under which they were accepted for storage. This report concludes that the volume of GTCC LLW should not pose a significant management problem from a scientific or technical standpoint. The projected volume is small enough to indicate that a dedicated GTCC LLW disposal facility may not be justified. Instead, co-disposal with other waste types is being considered as an option.

Not Available

1994-09-01T23:59:59.000Z

53

County-level Estimates for Carbon Distribution in U.S. Croplands, 1990-2005  

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

Metadata Metadata Method of Estimation The United Sates Department of Agriculture (USDA), National Agricultural Statistics Survey (NASS) produces estimates of crop yields per county per year. These yield estimates can be converted to carbon by converting units reported by NASS to one standard unit (kg), converting to dry matter, and multiplying by a carbon content factor of 0.45 (Brady and Weil, 1996). Yield estimates are divided by the harvest index to estimate total above-ground biomass. Multiplying aboveground biomass with the root:shoot ratio provides an estimate of below-ground biomass. Finally, summing above- and below-ground biomass provides an estimate for total net primary productivity (NPP). This method follows approaches used by Prince et al. (2001), Hicke and Lobell (2004), and Hicke et al. (2004). A mean harvest

54

An Algorithm to Estimate Field Concentrations in the Wake of a Power Plant Complex under Nonsteady Meteorological Conditions from Wind-Tunnel Experiments  

Science Journals Connector (OSTI)

Highest concentrations of pollutant at ground level are often produced from surface sources with stable or unstable atmospheric conditions and near calm erratic winds. This paper describes a weighted data methodology developed to predict surface ...

K. M. Kothari; R. N. Meroney; R. J. B. Bouwmeester

1981-08-01T23:59:59.000Z

55

ESS 2012 Peer Review - Estimation of Capital and Levelized Cost for Redox Flow Batteries - Vilayanur Viswanathan, PNNL  

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

Estimation of Capital and Levelized Estimation of Capital and Levelized Cost for Redox Flow Batteries V. Viswanathan, A. Crawford, L. Thaller 1 , D. Stephenson, S. Kim, W. Wang, G. Coffey, P. Balducci, Z. Gary Yang 2 , Liyu Li 2 , M. Kintner-Meyer, V. Sprenkle 1 Consultant 2 UniEnergy Technology September 28, 2012 USDOE-OE ESS Peer Review Washington, DC Dr. Imre Gyuk - Energy Storage Program Manager, Office of Electricity Delivery and Energy Reliability 1 What are we trying to accomplish? PNNL grid analytics team has established ESS cost targets for various applications PNNL cost/performance model estimates cost for redox flow battery systems of various chemistries drives research internally to focus on most important components/parameters/metrics for cost reduction and performance improvement

56

Estimation of Recharge to the Middle Trinity Aquifer of Central Texas Using Water-Level Fluctuations  

E-Print Network [OSTI]

A 23-site monitoring well network located in the Trinity Aquifer region of Central Texas, with all wells penetrating the Middle Trinity Aquifer, was used with available values of aquifer storativity and specific yield to estimate recharge...

Jennings, Marshall; Chad, Thomas; Burch, John; Creutzburg, Brian; Lambert, Lance

57

Assessment of radon concentration and external gamma radiation level in the environs of Narwapahar uranium mine, India and its radiological significance  

Science Journals Connector (OSTI)

In the environs of uranium mining, milling and processing facilities and in the uranium mineralized terrain, a little higher ambient radon concentration and gamma radiation level may be expected in comparison ...

B. K. Rana; R. M. Tripathi; J. S. Meena…

2011-11-01T23:59:59.000Z

58

Evaluation Of Glass Density To Support The Estimation Of Fissile Mass Loadings From Iron Concentrations In SB8 Glasses  

SciTech Connect (OSTI)

The Department of Energy – Savannah River (DOE-SR) has provided direction to Savannah River Remediation (SRR) to maintain fissile concentration in glass below 897 g/m{sup 3}. In support of that guidance, the Savannah River National Laboratory (SRNL) provided a technical basis and a supporting Microsoft® Excel® spreadsheet for the evaluation of fissile loading in Sludge Batch 5 (SB5), Sludge Batch 6 (SB6), Sludge Batch 7a (SB7a), and Sludge Batch 7b (SB7b) glass based on the iron (Fe) concentration in glass as determined by the measurements from the Slurry Mix Evaporator (SME) acceptability analysis. SRR has since requested that the necessary density information be provided to allow SRR to update the Excel® spreadsheet so that it may be used to maintain fissile concentration in glass below 897 g/m{sup 3} during the processing of Sludge Batch 8 (SB8). One of the primary inputs into the fissile loading spreadsheet includes an upper bound for the density of SB8-based glasses. Thus, these bounding density values are to be used to assess the fissile concentration in this glass system. It should be noted that no changes are needed to the underlying structure of the Excel-based spreadsheet to support fissile assessments for SB8. However, SRR should update the other key inputs to the spreadsheet that are based on fissile and Fe concentrations reported from the SB8 Waste Acceptance Product Specification (WAPS) sample.

Edwards, T. B.; Peeler, D. K.; Kot, W. K.; Gan, H.; Pegg, I. L.

2013-04-30T23:59:59.000Z

59

State-level evaluations of the Weatherization Assistance Program in 1990-1996: a metaevaluation that estimates national savings  

SciTech Connect (OSTI)

The DOE Weatherization Assistance Program is one of the largest energy conservation programs in the nation. To obtain an updated estimate of national Program savings, an approach of metaevaluation was selected, which involved locating, assembling, and summarizing the results of all state-level evaluations of the Program that have become available since 1990. All of the savings estimates that are presented in this report are for dwellings that heat primarily with natural gas.This review of the state-level evaluations conducted since 1990 concluded that Program performance has improved significantly in the last seven years. The finding that savings are increasing are supported by a literature review, within-state comparisons of savings over time, and regression modeling results.

Berry, L.

1997-01-01T23:59:59.000Z

60

ESTIMATED SIL LEVELS AND RISK COMPARISONS FOR RELIEF VALVES AS A FUNCTION OF TIME-IN-SERVICE  

SciTech Connect (OSTI)

Risk-based inspection methods enable estimation of the probability of spring-operated relief valves failing on demand at the United States Department of Energy's Savannah River Site (SRS) in Aiken, South Carolina. The paper illustrates an approach based on application of the Frechet and Weibull distributions to SRS and Center for Chemical Process Safety (CCPS) Process Equipment Reliability Database (PERD) proof test results. The methodology enables the estimation of ANSI/ISA-84.00.01 Safety Integrity Levels (SILs) as well as the potential change in SIL level due to modification of the maintenance schedule. Current SRS practices are reviewed and recommendations are made for extending inspection intervals. The paper compares risk-based inspection with specific SILs as maintenance intervals are adjusted. Groups of valves are identified in which maintenance times can be extended as well as different groups in which an increased safety margin may be needed.

Harris, S.

2012-03-26T23:59:59.000Z

Note: This page contains sample records for the topic "level concentration estimated" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
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61

Estimation of Failure Frequency for Type I and II High Level Waste Tanks  

SciTech Connect (OSTI)

The failure frequency of Type I and Type II High Level Waste tanks was calculated. The degradation mechanism that could lead to large break failure and the credits taken for steps taken to prevent large break failure were considered.

Subramanian, K.H.

2001-05-15T23:59:59.000Z

62

Estimation of mean annual effective dose through radon concentration in the water and indoor air of Islamabad and Murree  

Science Journals Connector (OSTI)

......strength to the energy of alpha particle...particles of different energies. Different isotopes...different alpha energies and produce different...about 30 min, the average radon content is...estimate of water consumption (60 la1), respectively...having ventilated homes structure, though......

N. Ali; E. U. Khan; P. Akhter; F. Khan; A. Waheed

2010-09-01T23:59:59.000Z

63

Source Term Estimation of Radioxenon Released from the Fukushima Dai-ichi Nuclear Reactors Using Measured Air Concentrations and Atmospheric Transport Modeling  

SciTech Connect (OSTI)

Systems designed to monitor airborne radionuclides released from underground nuclear explosions detected radioactive fallout from the Fukushima Daiichi nuclear accident in March 2011. Atmospheric transport modeling (ATM) of plumes of noble gases and particulates were performed soon after the accident to determine plausible detection locations of any radioactive releases to the atmosphere. We combine sampling data from multiple International Modeling System (IMS) locations in a new way to estimate the magnitude and time sequence of the releases. Dilution factors from the modeled plume at five different detection locations were combined with 57 atmospheric concentration measurements of 133-Xe taken from March 18 to March 23 to estimate the source term. This approach estimates that 59% of the 1.24×1019 Bq of 133-Xe present in the reactors at the time of the earthquake was released to the atmosphere over a three day period. Source term estimates from combinations of detection sites have lower spread than estimates based on measurements at single detection sites. Sensitivity cases based on data from four or more detection locations bound the source term between 35% and 255% of available xenon inventory.

Eslinger, Paul W. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Biegalski, S. [Univ. of Texas at Austin, TX (United States); Bowyer, Ted W. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Cooper, Matthew W. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Haas, Derek A. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Hayes, James C. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Hoffman, Ian [Radiation Protection Bureau, Health Canada, Ottawa, ON (Canada); Korpach, E. [Radiation Protection Bureau, Health Canada, Ottawa, ON (Canada); Yi, Jing [Radiation Protection Bureau, Health Canada, Ottawa, ON (Canada); Miley, Harry S. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Rishel, Jeremy P. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Ungar, R. Kurt [Radiation Protection Bureau, Health Canada, Ottawa, ON (Canada); White, Brian [Radiation Protection Bureau, Health Canada, Ottawa, ON (Canada); Woods, Vincent T. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)

2014-01-01T23:59:59.000Z

64

Estimation of low-level neutron dose-equivalent rate by using extrapolation method for a curie level Am–Be neutron source  

Science Journals Connector (OSTI)

Abstract Neutron radiation protection is an important research area because of the strong radiation biological effect of neutron field. The radiation dose of neutron is closely related to the neutron energy, and the connected relationship is a complex function of energy. For the low-level neutron radiation field (e.g. the Am–Be source), the commonly used commercial neutron dosimeter cannot always reflect the low-level dose rate, which is restricted by its own sensitivity limit and measuring range. In this paper, the intensity distribution of neutron field caused by a curie level Am–Be neutron source was investigated by measuring the count rates obtained through a 3He proportional counter at different locations around the source. The results indicate that the count rates outside of the source room are negligible compared with the count rates measured in the source room. In the source room, 3He proportional counter and neutron dosimeter were used to measure the count rates and dose rates respectively at different distances to the source. The results indicate that both the count rates and dose rates decrease exponentially with the increasing distance, and the dose rates measured by a commercial dosimeter are in good agreement with the results calculated by the Geant4 simulation within the inherent errors recommended by ICRP and IEC. Further studies presented in this paper indicate that the low-level neutron dose equivalent rates in the source room increase exponentially with the increasing low-energy neutron count rates when the source is lifted from the shield with different radiation intensities. Based on this relationship as well as the count rates measured at larger distance to the source, the dose rates can be calculated approximately by the extrapolation method. This principle can be used to estimate the low level neutron dose values in the source room which cannot be measured directly by a commercial dosimeter.

Gang Li; Jiayun Xu; Jie Zhang

2015-01-01T23:59:59.000Z

65

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

66

Estimation of the xenon concentration and delayed neutrons precursors densities in the pressurized-water nuclear reactors (PWR) with sliding mode observer considering xenon oscillations  

Science Journals Connector (OSTI)

Abstract One of the important operations in nuclear power plants is load-following in which the imbalance in 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 is considered to be a constraint for the load-following operation. On the other hands, precursors produce delayed neutrons which are important with respect to reactor period and control, but xenon concentration and precursors densities cannot be measured directly. In this paper, the 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 equations with three groups of the delayed neutrons to estimate the xenon concentration and delayed neutrons precursor densities of the pressurized-water nuclear reactor (PWR) using reactor power measurements. The stability analysis is provided by means of the Lyapunov approach, thus the system is guaranteed to be stable over a wide range. The employed method is easy to implement. 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 parameter uncertainties and disturbances.

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

2015-01-01T23:59:59.000Z

67

C3c concentrations in sera of persons living in areas with different levels of air pollution in Northrhine-Westphalia (Federal Republic of Germany)  

SciTech Connect (OSTI)

A number of air pollutants is known to affect the immune system resulting in alterations of the complement activity in serum. We determined the levels of C3c, one of the activation products of the component C3, in serum samples obtained from various population groups living in areas with different levels of air pollution in Northrhine-Westphalia (FRG). The results show that the serum C3c levels tend to be increased in subjects living in areas with elevated levels of air pollution. By applying a linear regression model it can be demonstrated that a significant part of the variance of the C3c concentrations is explained by the residence area factor after making allowance for the effect of various confounders. The increase of the serum C3c concentrations appears to result from an increased activation of the complement component C3. The underlying mechanisms as well as the pathophysiological significance of these findings are unknown.

Stiller-Winkler, R.; Kraemer, U.F.; Fiedler, E.; Ewers, U.; Dolgner, R.

1989-06-01T23:59:59.000Z

68

New Remote Method for Estimation of Contamination Levels of Reactor Equipment - 13175  

SciTech Connect (OSTI)

Projects for decommissioning of shutdown reactors and reactor facilities carried out in several countries, including Russia. In the National Research Centre 'Kurchatov Institute' decontamination and decommissioning of the research reactor MR (Material Testing Reactor) has been initiated. The research reactor MR has a long history and consists of nine loop facilities for experiments with different kinds of fuel. During the operation of main and auxiliary equipment of reactors it was subjected to strong radioactive contamination. The character of this contamination requires individual strategies for the decontamination work. This requires information about the character of the distribution of radioactive contamination of equipment in the premises. A detailed radiation survey of these premises using standard dosimetric equipment is almost impossible because of high levels of radiation and high-density of the equipment that does not allow identifying the most active fragments using standard tools of measurement. The problem can be solved using the method of remote measurements of distribution of radioactivity with help of the collimated gamma-ray detectors. For radiation surveys of the premises of loop installations remotely operated spectrometric collimated system was used [1, 2, 3]. As a result of the work, maps of the distribution of activity and dose rate for surveyed premises were plotted and superimposed on its photo. The new results of measurements in different areas of the reactor and at its loop installations, with emphasis on the radioactive survey of highly-contaminated samples, are presented. (authors)

Danilovich, Alexey; Ivanov, Oleg; Potapov, Victor; Semenov, Sergey; Semin, Ilya; Smirnov, Sergey; Stepanov, Vyacheslav; Volkovich, Anatoly [National Research Centre 'Kurchatov Institute', Moscow (Russian Federation)] [National Research Centre 'Kurchatov Institute', Moscow (Russian Federation)

2013-07-01T23:59:59.000Z

69

Investigating Returns to Investments in Education: An Empirical Study Estimating Returns to Primary, Secondary and Tertiary Education for Countries at Different Levels of Economic Development  

E-Print Network [OSTI]

refer to where in education governments should invest in order to obtain the highest returns, based on the specific characteristics of their countries (i.e. level of economic development). The purpose of this dissertation is to estimate and determine...

Lozano, Ricardo Viviano

2012-07-16T23:59:59.000Z

70

Ground-water levels and tritium concentrations at the Maxey Flats low-level radioactive-waste-disposal site near Morehead, Kentucky, June 1984 to April 1989. Water - resources investigation  

SciTech Connect (OSTI)

The report, one in a series of reports by the USGS, summarizes ground-water level and tritium data that were collected by the USGS from June 1984 through April 1989. The report also describes the occurrence and distribution of tritium in water from selected wells. Data for ground-water levels in wells and disposal tranches and the concentrations of tritium in water from monitoring wells at the site are presented. Precipitation data were collected in conjunction with the water-level data to relate precipitation to ground-water recharge. Specific conductance data, routinely determined for ground-water samples, also were collected to compare changes in specific conductance to changes in tritium concentrations. All data are stored locally on the U.S. Geological Survey's National Water Information System (NWIS).

Wilson, K.S.; Lyons, B.E.

1991-01-01T23:59:59.000Z

71

The effect of dietary levels of protein on the concentration of free amino acids in the plasma and tissue of chicks and swine  

E-Print Network [OSTI]

THE EFFECT OF DIETARY IEVEI8 OF PROTEIN ON THE CON". ECTION OF FREE AMINO ACIDS IN THE PLASMA AND TISSIE OF CHICKS AND SWINE A Thesis By Donald E. Johnson Submgtted to the Graduate School of the Agricultural and Mechanical College of Texas... in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August 1959 Major Subject: BIOCHEMISTRT AND NDTRITION THE EFFECT OF DIETARY LEVELS OF PROTEIN ON THE CONCENTRATION OF FREE AMINO ACIDS IN THE PLASMA AND TISSUE OF CHICES...

Johnson, Donald Edgar

2012-06-07T23:59:59.000Z

72

Approaches for Establishing Predicted-No-Effect Concentrations for Population-Level Ecological Risk Assessment in the Context of Chemical Substances Management  

Science Journals Connector (OSTI)

Approaches for Establishing Predicted-No-Effect Concentrations for Population-Level Ecological Risk Assessment in the Context of Chemical Substances Management ... Research Center for Chemical Risk Management, National Institute of Advanced Industrial Science and Technology, 16-1 Onogawa, Tsukuba, Ibaraki Prefecture 305-8569, Japan ... The results of our case study demonstrate that it has three useful implications for performing PLERA in the context of chemical risk management:? (1) the approach shown here is a practical way of establishing a target value for population-level impacts; (2) it is able to exploit currently available toxicity test data; and (3) it provides useful information on how to design future toxicity tests for PLERA. ...

Bin-le Lin; Akihiro Tokai; Junko Nakanishi

2005-05-28T23:59:59.000Z

73

Stationary IPA Estimates for NonSmooth G/G/1/1 Functionals via Palm Inversion and LevelCrossing Analysis. \\Lambda  

E-Print Network [OSTI]

Stationary IPA Estimates for Non­Smooth G/G/1/1 Functionals via Palm Inversion and Level Infinitesimal Perturbation Analysis (IPA), a method first introduced by Ho and Cao [13] and further developed and Cao [14] summarize and review most previous results on IPA. Alternative methods have been used

Lasgouttes, Jean-Marc

74

Estimation of Ground-Level Reflectivity Factor in Operational Weather Radar Networks Using VPR-Based Correction Ensembles  

Science Journals Connector (OSTI)

An operational method is presented that corrects the bias of radar-based quantitative precipitation estimations (QPE) in radar networks that is due to the vertical profile of reflectivity (VPR) factor. It is used in both rain and snowfall. ...

Jarmo Koistinen; Heikki Pohjola

2014-10-01T23:59:59.000Z

75

Nearest Neighbor Averaging and its Effect on the Critical Level and Minimum Detectable Concentration for Scanning Radiological Survey Instruments that Perform Facility Release Surveys.  

SciTech Connect (OSTI)

Through the SNL New Mexico Small Business Assistance (NMSBA) program, several Sandia engineers worked with the Environmental Restoration Group (ERG) Inc. to verify and validate a novel algorithm used to determine the scanning Critical Level (L c ) and Minimum Detectable Concentration (MDC) (or Minimum Detectable Areal Activity) for the 102F scanning system. Through the use of Monte Carlo statistical simulations the algorithm mathematically demonstrates accuracy in determining the L c and MDC when a nearest-neighbor averaging (NNA) technique was used. To empirically validate this approach, SNL prepared several spiked sources and ran a test with the ERG 102F instrument on a bare concrete floor known to have no radiological contamination other than background naturally occurring radioactive material (NORM). The tests conclude that the NNA technique increases the sensitivity (decreases the L c and MDC) for high-density data maps that are obtained by scanning radiological survey instruments.

Fournier, Sean Donovan; Beall, Patrick S [Sandia National Laboratories, Livermore, CA; Miller, Mark L.

2014-08-01T23:59:59.000Z

76

A Nonparametric Instrumental Variable Approach to Estimating the Environmental Kuznets Curve for Water Pollutants at the Global Level1  

E-Print Network [OSTI]

specifically on air pollution (e.g., Bruvoll and Medin, 2003; Deacon and Norman, 2006; Heerink et al., 2001 for Water Pollutants at the Global Level1 C.-Y. Cynthia Lin,2 Krishna P. Paudel, Mahesh Pandit for Water Pollutants at the Global Level Abstract We examine the relationship between income and water

Lin, C.-Y. Cynthia

77

Refining Estimates of Polar Ice Volumes during the MIS11 Interglacial Using Sea Level Records from South Africa  

Science Journals Connector (OSTI)

Peak eustatic sea level (ESL), or minimum ice volume, during the protracted marine isotope stage 11 (MIS11) interglacial at ~420 ka remains a matter of contention. A recent study of high-stand markers of MIS11 age from the tectonically stable ...

Florence Chen; Sarah Friedman; Charles G. Gertler; James Looney; Nizhoni O’Connell; Katie Sierks; Jerry X. Mitrovica

2014-12-01T23:59:59.000Z

78

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

79

Comparison of predicted ground-level airborne radionuclide concentrations to measured values resulting from operation of the Los Alamos Meson Physics Facility  

E-Print Network [OSTI]

A comparison study of measured and predicted downwind radionuclide concentrations from the Los Alamos Meson Physics Facility (LAMPF) was performed. The radionuclide emissions consist primarily of the radioisotopes "C, 'IN, and 110. The gases...

Hoak, William Vandergrift

2012-06-07T23:59:59.000Z

80

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

Note: This page contains sample records for the topic "level concentration estimated" 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

Estimation of natural ground water recharge for the performance assessment of a low-level waste disposal facility at the Hanford Site  

SciTech Connect (OSTI)

In 1994, the Pacific Northwest Laboratory (PNL) initiated the Recharge Task, under the PNL Vitrification Technology Development (PVTD) project, to assist Westinghouse Hanford Company (WHC) in designing and assessing the performance of a low-level waste (LLW) disposal facility for the US Department of Energy (DOE). The Recharge Task was established to address the issue of ground water recharge in and around the LLW facility and throughout the Hanford Site as it affects the unconfined aquifer under the facility. The objectives of this report are to summarize the current knowledge of natural ground water recharge at the Hanford Site and to outline the work that must be completed in order to provide defensible estimates of recharge for use in the performance assessment of this LLW disposal facility. Recharge studies at the Hanford Site indicate that recharge rates are highly variable, ranging from nearly zero to greater than 100 mm/yr depending on precipitation, vegetative cover, and soil types. Coarse-textured soils without plants yielded the greatest recharge. Finer-textured soils, with or without plants, yielded the least. Lysimeters provided accurate, short-term measurements of recharge as well as water-balance data for the soil-atmosphere interface and root zone. Tracers provided estimates of longer-term average recharge rates in undisturbed settings. Numerical models demonstrated the sensitivity of recharge rates to different processes and forecast recharge rates for different conditions. All of these tools (lysimetry, tracers, and numerical models) are considered vital to the development of defensible estimates of natural ground water recharge rates for the performance assessment of a LLW disposal facility at the Hanford Site.

Rockhold, M.L.; Fayer, M.J.; Kincaid, C.T.; Gee, G.W.

1995-03-01T23:59:59.000Z

82

A Method for energy estimation and mass composition determination of primary cosmic rays at Chacaltaya observation level based on atmospheric Cerenkov light technique  

E-Print Network [OSTI]

A new method for energy and mass composition estimation of primary cosmic ray radiation based on atmospheric Cerenkov light flux in extensive air showers (EAS) analysis is proposed. The Cerenkov light flux in EAS initiated by primary protons and iron nuclei is simulated with CORSIKA 5.62 code for Chacaltaya observation level (536 g/cm2) in the energy range 10 TeV - 10 PeV. An adequate model, approximation of lateral distribution of Cerenkov light in showers is obtained. Using the proposed model and solution of overdetermined system of nonlinear equations based on Gauss Newton method with autoregularization, two different array detector arrangements are compared. The detector response for the detector sets is simulated. The accuracies in energy and shower axis determination are studied and the corresponding selection criteria are proposed. An approximation with nonlinear fit is obtained and the energy dependence of the proposed model function parameters is studied. The approximation of model parameters as function of the primary energy is carried out. This permits, taking into account the properties of the proposed method and model, to distinguish proton primaries from iron primaries. The detector response for the detector sets is simulated and the accuracies in energy determination are calculated. Moreover the accuracies in shower axis determination are studied and criteria in shower axis position estimation are proposed.

S. Mavrodiev; A. Mishev; J. Stamenov

2003-10-22T23:59:59.000Z

83

The influence of levels of low quality roughages upon feedlot performance and carcass characteristics of beef cattle fed high concentrate rations  

E-Print Network [OSTI]

feeding experiment of 239 days duration to compare performance of steers fsd cottonseed hulls, flex chives and rice hulls at levels of 10, 20 and 30 percent and ammoniated rice hulls at levels of 10 and 20 percent in fattening rations. 15... flax chives and ammoniated rice hulls, neither of which hsd been previously tested on any scale. The better perforaaaoe in Experiment 1 of cattle fed 10 percent rice hulls than that ~~ cattle fed 20 or 30 percent also raised question...

Wahed, A. B. M. Fazle

1965-01-01T23:59:59.000Z

84

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

85

Improving Estimates of Cloud Condensation Nuclei Concentration  

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

aerosols), the Azores (sea-salt aerosols, local pollution from airport traffic, and long-range transport from Europe), the Black Forest in Germany (agricultural and forested...

86

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...

87

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

88

RADIATION CARCINOGENESIS IN MAN: INFLUENCE OF DOSE-RESPONSE MODELS AND RISK PROJECTION MODELS IN THE ESTIMATION OF RISK COEFFICIENTS FOLLOWING EXPOSURE TO LOW-LEVEL RADIATION  

E-Print Network [OSTI]

RADIATION CARCINOGENESIS IN MAN: INFLUENCE OF DOSE-RESPONSE MODELS AND RISK PROJECTION MODELS IN THE ESTIMATIONRADIATION CARCINOGENESIS IN HAN: INFLUENCE OF DOSE-RESPONSE MODELS AND RISK PROJECTION MODELS IN THE ESTIMATION

Fabrikant, J.I.

2010-01-01T23:59:59.000Z

89

Current Status of Concentrator Photovoltaic (CPV) Technology  

SciTech Connect (OSTI)

This report describes the current status of the market and technology for concentrator photovoltaic (CPV) cells and modules. Significant progress in CPV has been achieved, including record efficiencies for modules (36.7%) and cells (46%), as well as growth of large field installations in recent years. CPV technology may also have the potential to be cost-competitive on a levelized cost of energy (LCOE) basis in regions of high direct normal irradiance (DNI). The study includes an overview of all installations larger than 1 MW, information on companies currently active in the CPV field, efficiency data, and estimates of the LCOE in different scenarios.

Philipps, S. P.; Bett, A. W.; Horowitz, K.; Kurtz, S.

2015-01-01T23:59:59.000Z

90

Mixed low-level waste form evaluation  

SciTech Connect (OSTI)

A scoping level evaluation of polyethylene encapsulation and vitreous waste forms for safe storage of mixed low-level waste was performed. Maximum permissible radionuclide concentrations were estimated for 15 indicator radionuclides disposed of at the Hanford and Savannah River sites with respect to protection of the groundwater and inadvertent intruder pathways. Nominal performance improvements of polyethylene and glass waste forms relative to grout are reported. These improvements in maximum permissible radionuclide concentrations depend strongly on the radionuclide of concern and pathway. Recommendations for future research include improving the current understanding of the performance of polymer waste forms, particularly macroencapsulation. To provide context to these estimates, the concentrations of radionuclides in treated DOE waste should be compared with the results of this study to determine required performance.

Pohl, P.I.; Cheng, Wu-Ching; Wheeler, T.; Waters, R.D.

1997-03-01T23:59:59.000Z

91

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

92

Satellite-based estimates of ground-level fine particulate matter during extreme events: A case study of the Moscow fires in 2010  

E-Print Network [OSTI]

adverse health effects. Large short-term increases in air pollution, or air pollution episodes, in the mid on August 7, 2010 in the Moscow region of the Russian Federation. We estimate that exposure to air pollution, but it is reasonable to assume that these extreme, short-lived excursions in ambient air pollution resulted in serious

Martin, Randall

93

Estimating Methods  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

Based on the project's scope, the purpose of the estimate, and the availability of estimating resources, the estimator can choose one or a combination of techniques when estimating an activity or project. Estimating methods, estimating indirect and direct costs, and other estimating considerations are discussed in this chapter.

1997-03-28T23:59:59.000Z

94

Improved freezing level retrieval  

E-Print Network [OSTI]

TRMM Microwave Imager(TMI)-based passive microwave retrieval techniques result in biased estimates of the freezing level and rainfall over the east Pacific in the Inter Tropical Convergence Zone (ITCZ). Passive microwave rainfall estimates...

Hong, Sungwook

2002-01-01T23:59:59.000Z

95

High Level of Correlation of Human Papillomavirus-16 DNA Viral Load Estimates Generated by Three Real-time PCR Assays Applied on Genital Specimens  

Science Journals Connector (OSTI)

...measure HPV DNA from individual types and has a sensitivity end point of 5,000 HPV DNA copies per test (26, 27). Furthermore...ancient pandemic spread of the virus and its coevolution with humankind. J Virol 1992;66:2057-66. High level of correlation...

Julie Fontaine; Patti Gravitt; Lee-Min Duh; Jonas Lefevre; Karina Pourreaux; Catherine Hankins; François Coutlée; and The Canadian Women's HIV Study Group

2005-09-01T23:59:59.000Z

96

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,

97

Los Alamos PC estimating system  

SciTech Connect (OSTI)

The Los Alamos Cost Estimating System (QUEST) is being converted to run on IBM personal computers. This very extensive estimating system is capable of supporting cost estimators from many different and varied fields. QUEST does not dictate any fixed method for estimating. QUEST supports many styles and levels of detail estimating. QUEST can be used with or without data bases. This system allows the estimator to provide reports based on levels of detail defined by combining work breakdown structures. QUEST provides a set of tools for doing any type of estimate without forcing the estimator to use any given method. The level of detail in the estimate can be mixed based on the amount of information known about different parts of the project. The system can support many different data bases simultaneously. Estimators can modify any cost in any data base.

Stutz, R.A.; Lemon, G.D.

1987-01-01T23:59:59.000Z

98

Open questions regarding implications of radioadaptive response in the estimation of the risks of low-level exposures in nuclear workers  

Science Journals Connector (OSTI)

Substantial data indicate that increased levels of chromosome aberrations in lymphocytes can be used to predict cancer risk in humans. One may conclude that a dose of ionising radiation sufficient to produce a certain level of cell damage increases production of antioxidants and repair enzymes that decrease either the frequency of chromosome aberrations or the cancer risk. People in some areas of Ramsar, a city in northern Iran, receive an annual radiation dose from background radiation that is more than five times higher than the 20 mSv yr-1 that is permitted for radiation workers. If an annual radiation dose of a few hundred mSv is detrimental to health, causing genetic abnormalities or an increased risk of cancer, it should be evident in these people, while cytogenetic studies show no significant differences between people in the high background compared to people in normal background areas. Although there is not yet solid epidemiological information, most local physicians in Ramsar report anecdotally there is no increase in the incidence rates of cancer or leukemia in their area. On the other hand, there are no data to indicate a significant increase of cancer incidence in other High Background Radiation Areas (HBRAs) around the world. Furthermore, several studies show a significant decrease of cancer death rates in areas with high backgrounds. To assess the possible induction of an adaptive response, an in vitro challenge dose of 1.5 Gy of gamma rays was administered to the lymphocytes of the inhabitants as well as those of a neighbouring area. Lymphocytes of Ramsar residents showed a significantly reduced radiation sensitivity for chromosome aberrations compared to those of residents in normal background areas. Given the apparent lack of ill effects in the populations of these high dose-rate areas, these data further suggest that current dose limits are overly conservative.

S.M.J. Mortazavi; T. Ikushima

2006-01-01T23:59:59.000Z

99

Optics for Concentration on PV Cells  

Science Journals Connector (OSTI)

Modern PhotoVoltaic cells and technologies for Concentrating PhotoVoltaics require high level of solar light concentration. The paper proposes different collectors for the exploitation of solar light using CPV sy...

P. Sansoni; D. Fontani; F. Francini…

2009-01-01T23:59:59.000Z

100

Statistical Analysis Of Heavy Metals Concentration In Watermelon Plants Irrigated By Wastewater  

Science Journals Connector (OSTI)

Concentration of heavy metals in vegetables irrigated by urban wastewater is a cause of serious concern due to the potentials health problems of consuming contaminated produce. In this study it is tried to model the concentration of heavy metals (Cd Cr Cu Fe …) as a function of their concentration in watermelon roots and stems. Our study shows there is a good relationship between them for most of collected data. By measuring the concentration in root and stem of watermelon plant samples before harvesting the concentration of heavy metal in watermelon's fruit can be estimated by presented mathematical models. This study shows the concentrations of heavy metals in fruits roots and stems of watermelon plants are very high and in dangerous level when irrigated by municipal waste water.

M. J. Khanjani; A. A. Maghsoudi moud; V. R. Saffari; S. M. Hashamipor; M. Soltanizadeh

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "level concentration estimated" 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

State Emissions Estimates  

Gasoline and Diesel Fuel Update (EIA)

Estimates of state energy-related carbon dioxide emissions Estimates of state energy-related carbon dioxide emissions Because energy-related carbon dioxide (CO 2 ) constitutes over 80 percent of total emissions, the state energy-related CO 2 emission levels provide a good indicator of the relative contribution of individual states to total greenhouse gas emissions. The U.S. Energy Information Administration (EIA) emissions estimates at the state level for energy-related CO 2 are based on data contained in the State Energy Data System (SEDS). 1 The state-level emissions estimates are based on energy consumption data for the following fuel categories: three categories of coal (residential/commercial, industrial, and electric power sector); natural gas; and ten petroleum products including-- asphalt and road oil, aviation gasoline, distillate fuel, jet fuel, kerosene, liquefied petroleum gases

102

Cost Estimator  

Broader source: Energy.gov [DOE]

A successful candidate in this position will serve as a senior cost and schedule estimator who is responsible for preparing life-cycle cost and schedule estimates and analyses associated with the...

103

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

104

Estimating “Safe” Levels, a Hazardous Undertaking  

Science Journals Connector (OSTI)

...Agency may promote the use of atomic energy for electric power, while the Public Health...may be more concerned with radiant energy as a cause of cancer. (The old...Report for 1970. Unit of Chemical Car cinogenesis, Chap. 4, pp. 66...

Nathan Mantel and Marvin A. Schneiderman

1975-06-01T23:59:59.000Z

105

Equilibrium and eigenfunctions estimates in the semiclassical regime  

SciTech Connect (OSTI)

We establish eigenfunctions estimates, in the semiclassical regime, for critical energy levels associated to an isolated singularity. For Schroedinger operators, the asymptotic repartition of eigenvectors is the same as in the regular case, excepted in dimension one where a concentration at the critical point occurs. This principle extends to pseudo-differential operators and the limit measure is the Liouville measure as long as the singularity remains integrable.

Camus, Brice [Ruhr-Universitaet Bochum, Fakultaet fuer Mathematik, Universitaetsstr. 150, D-44780 Bochum (Germany)

2006-11-15T23:59:59.000Z

106

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

107

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

108

GAO Cost Estimating and Assessment Guide Twelve Steps of a High-Quality Cost Estimating Process  

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

GAO Cost Estimating and Assessment Guide GAO Cost Estimating and Assessment Guide Twelve Steps of a High-Quality Cost Estimating Process Step Description Associated task 1 Define estimate's purpose Determine estimate's purpose, required level of detail, and overall scope; Determine who will receive the estimate 2 Develop estimating plan Determine the cost estimating team and develop its master schedule; Determine who will do the independent cost estimate; Outline the cost estimating approach; Develop the estimate timeline 3 Define program characteristics In a technical baseline description document, identify the program's

109

Estimation of radiation doses from 137Cs to frogs in a wetland ecosystem  

Science Journals Connector (OSTI)

Currently, there is no established methodology to estimate radiation doses to non-human biota. Therefore, in this study, various dose models were used to estimate radiation doses to moor frogs (Rana arvalis) in a wetland ecosystem contaminated with 137Cs. External dose estimations were based on activity concentrations of 137Cs in soil and water, considering changes in habitat over a life-cycle. Internal doses were calculated from the activity concentrations of 137Cs measured in moor frogs. Depending on the dose model used, the results varied substantially. External dose rates ranged from 21 to 160 mGy/y, and internal dose rates varied between 1 and 14 mGy/y. Maximum total dose rates to frogs were below the expected safe level for terrestrial populations, but close to the suggested critical dose rate for amphibians. The results show that realistic assumptions in dose models are particularly important at high levels of contamination.

K. Stark; R. Avila; P. Wallberg

2004-01-01T23:59:59.000Z

110

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

111

Statistical Exposure Estimation Spatial Confounding Bias  

E-Print Network [OSTI]

, and 3 Account for spatial correlation in the health outcome data. Applications include air pollution Epidemiology Estimates of chronic health effects of air pollution are identified from cross-sectional (i Exposure Estimation Methods for Air Pollution Often researchers estimate ambient concentrations and use

Paciorek, Chris

112

Estimated Ultraviolet Radiation Doses in Wetlands in  

E-Print Network [OSTI]

Estimated Ultraviolet Radiation Doses in Wetlands in Six National Parks Stephen A. Diamond,1 ABSTRACT Ultraviolet-B radiation (UV-B, 280­320-nm wave- lengths) doses were estimated for 1024 wetlands of vegetative features, and quantification of DOC concentration and spectral absorbance. UV-B dose estimates

Knapp, Roland

113

Reinforcing flood–risk estimation  

Science Journals Connector (OSTI)

...However, most ood-risk estimates support decisions...charac- ter. These are investment decisions, where the...current level of ood risk, making improvements...generated a national ood-risk map with a high political and societal impact...

2002-01-01T23:59:59.000Z

114

ESTIMATE OF RADIUM-226 CONCENTRATIONS IN RUBBLED PCB WAREHOUSE...  

Office of Legacy Management (LM)

THE NIAGARA FALLS STORAGE SITE MAY 1987 Prepared for UNITED STATES DEPARTMENT OF ENERGY OAK RIDGE OPERATIONS OFFICE Under Contract No. DE-AC05-810R20722 By Bechtel National, Inc....

115

Examples of Cost Estimation Packages  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

Estimates can be performed in a variety of ways. Some of these are for projects for an undefined scope, a conventional construction project, or where there is a level of effort required to complete the work. Examples of cost estimation packages for these types of projects are described in this appendix.

1997-03-28T23:59:59.000Z

116

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...

117

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

118

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

119

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."

120

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

Note: This page contains sample records for the topic "level concentration estimated" 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

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

122

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:...

123

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

124

Long-term investigations of radiocaesium activity concentrations in carps in north Croatia after the Chernobyl accident  

E-Print Network [OSTI]

Long-term investigations of radiocaesium activity concentrations in carps in the Republic of Croatia are presented. The radiocaesium levels in carps decreased exponentially and the effective ecological half-life of 137Cs in carps was estimated to be about 1 year for 1987-2002 period and 5 years for 1993-2005 period. The observed 134Cs:137Cs activity ratio in carps has been found to be similar to the ratio that has been observed in other environmental samples. Concentration factor for carps (wet weight) was roughly estimated to be 128 +/- 74 Lkg-1, which is in reasonable agreement with model prediction based on K+ concentrations in water. Estimated annual effective doses received by 134Cs and 137Cs intake due to consumption of carps for an adult member of Croatian population are small, per caput dose for the 1987 - 2005 estimated to be 0.5 +/- 0.2 microSv. Due to minor freshwater fish consumption in Croatia and low radiocaesium activity concentrations in carps, it can be concluded that carps consumption was no...

Franic, Z

2007-01-01T23:59:59.000Z

125

Evaluation of Background Mercury Concentrations in the SRS Groundwater System  

SciTech Connect (OSTI)

Mercury analyses associated with the A-01 Outfall have highlighted the importance of developing an understanding of mercury in the Savannah River Site groundwater system and associated surface water streams. This activity is critical based upon the fact that the EPA Ambient Water Quality Criteria (AWQC) for this constituent is 0.012mg/L, a level that is well below conventional detection limits of 0.1 to 0.2 mg/L. A first step in this process is obtained by utilizing the existing investment in groundwater mercury concentrations (20,242 records) maintained in the SRS geographical information management system (GIMS) database. Careful use of these data provides a technically defensible initial estimate for total recoverable mercury in background and contaminated SRS wells.

Looney, B.B.

1999-03-03T23:59:59.000Z

126

Thermal management and overall performance of a high concentration PV  

Science Journals Connector (OSTI)

An advanced thermal management approach for HCPV systems is demonstrated in this manuscript proposing the concept of efficient heat recovery at ultra high concentration ratios by collecting the heat on a high temperature level. With the availability of this low grade heat the efficiency of the HCPV system is increased further as the 'waste' heat is supplied to different thermal consumers engaging in thermal desalination or adsorption cooling processes. To asses the value of the concept we have estimated the economic value of heat with regard to its consumer and observed that this differs from its thermodynamic value. This valuable input is was used to determine the overall generated value of a dual output system as a function of the operation temperature where we have actively demonstrated a superior performance of the HCPVT.

Werner Escher; Stephan Paredes; Severin Zimmermann; Chin Lee Ong

2012-01-01T23:59:59.000Z

127

Estimation of reactogenicity of preparations produced on the basis of photoinactivated live vaccines against brucellosis and tularaemia on the organismic level. 2. Using the method of speckle-microscopy with high spatial resolution  

SciTech Connect (OSTI)

The method of speckle microscopy was adapted to estimate the reactogenicity of the prototypes of vaccine preparations against extremely dangerous infections. The theory is proposed to describe the mechanism of formation of the output signal from the super-high spatial resolution speckle microscope. The experimental studies show that bacterial suspensions, irradiated in different regimes of inactivation, do not exert negative influence on the blood microcirculations in laboratory animals. (optical technologies in biophysics and medicine)

Ulianova, O V; Uianov, S S; Li Pengcheng; Luo Qingming

2011-04-30T23:59:59.000Z

128

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

129

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

130

The RCP Greenhouse Gas Concentrations and their Extensions from 1765 to 2300  

SciTech Connect (OSTI)

We present the greenhouse gas concentrations for the Representative Concentration Pathways (RCPs) and their extensions beyond 2100, the Extended Concentration Pathways (ECPs). These projections include all major anthropogenic greenhouse gases and are a result of a multi-year effort to produce new scenarios for climate change research. We first compiled a suite of observations and emissions estimates for greenhouse gases (GHGs) through the historical period (1750-2005). For the 21st century, we start from emissions projected by four different Integrated Assessment Models for 2005-2100. We harmonize these emissions to allow inter-comparability of scenarios and to achieve a smooth transition from historical data. These harmonized emissions are then used to derive future GHG concentrations. We also present the GHG concentrations for one supplementary extension, which illustrates the emissions implications of attempting to go back to ECP4.5 concentration levels after emissions in the 21st century followed RCP6. Corresponding radiative forcing values are also presented for the RCP and ECPs.

Meinshausen, Malte; Smith, Steven J.; Calvin, Katherine V.; Daniel, John S.; Kainuma, M.; Lamarque, J.-F.; Matsumoto, Ken ichi; Montzka, S.; Raper, S.; Riahi, Keywan; Thomson, Allison M.; Velders, G.J.M; Van Vuuren, Detlef

2011-08-01T23:59:59.000Z

131

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

132

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

133

Probability of sea level rise  

SciTech Connect (OSTI)

The report develops probability-based projections that can be added to local tide-gage trends to estimate future sea level at particular locations. It uses the same models employed by previous assessments of sea level rise. The key coefficients in those models are based on subjective probability distributions supplied by a cross-section of climatologists, oceanographers, and glaciologists.

Titus, J.G.; Narayanan, V.K.

1995-10-01T23:59:59.000Z

134

7 - Estimation of Radiation Doses  

Science Journals Connector (OSTI)

Abstract Radiation doses to the Japanese population from inhalation of contaminated air, external irradiation, terrestrial and marine food contamination are estimated and compared with other sources of anthropogenic (global fallout, Chernobyl accident), natural (radionuclides in food, cosmic radiation) and medical applications (X-ray tests, CT-tests, etc.) of ionizing radiation. The estimated doses from inhalation, ingestion of terrestrial and marine food, and radiation exposure from radioactive clouds and deposited radionuclides were generally below the levels which could cause health damage of the Japanese population, as well as of the world population. The estimated total radiation doses to fish and shellfish in coastal waters during the largest radionuclide releases were by a factor of 10 lower than the baseline safe level postulated for the marine organisms, therefore no harmful effects are expected for the marine ecosystem as well.

Pavel P. Povinec; Katsumi Hirose; Michio Aoyama

2013-01-01T23:59:59.000Z

135

ESTIMATING RISK TO CALIFORNIA ENERGY INFRASTRUCTURE FROM PROJECTED CLIMATE CHANGE  

E-Print Network [OSTI]

Change Scenarios and Sea Level Rise Estimates for theThe puzzle of global sea-level rise. ” Physics Today 55 (3):2009. The Impacts of Sea-Level Rise on the California Coast.

Sathaye, Jayant

2011-01-01T23:59:59.000Z

136

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

137

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

138

Capacity Value of Concentrating Solar Power Plants  

SciTech Connect (OSTI)

This study estimates the capacity value of a concentrating solar power (CSP) plant at a variety of locations within the western United States. This is done by optimizing the operation of the CSP plant and by using the effective load carrying capability (ELCC) metric, which is a standard reliability-based capacity value estimation technique. Although the ELCC metric is the most accurate estimation technique, we show that a simpler capacity-factor-based approximation method can closely estimate the ELCC value. Without storage, the capacity value of CSP plants varies widely depending on the year and solar multiple. The average capacity value of plants evaluated ranged from 45%?90% with a solar multiple range of 1.0-1.5. When introducing thermal energy storage (TES), the capacity value of the CSP plant is more difficult to estimate since one must account for energy in storage. We apply a capacity-factor-based technique under two different market settings: an energy-only market and an energy and capacity market. Our results show that adding TES to a CSP plant can increase its capacity value significantly at all of the locations. Adding a single hour of TES significantly increases the capacity value above the no-TES case, and with four hours of storage or more, the average capacity value at all locations exceeds 90%.

Madaeni, S. H.; Sioshansi, R.; Denholm, P.

2011-06-01T23:59:59.000Z

139

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

140

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

Note: This page contains sample records for the topic "level concentration estimated" 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

Uranium-238 and thorium-232 series concentrations in soil, radon-222 indoor and drinking water concentrations and dose assessment in the city of Aldama, Chihuahua, Mexico  

Science Journals Connector (OSTI)

High-resolution gamma spectrometry was used to determine the concentration of 40K, 238U and 232Th series in soil samples taken from areas surrounding the city of Aldama, in Chihuahua. Results of indoor air short-time sampling, with diffusion barrier charcoal detectors, revealed relatively high indoor radon levels, ranging from 29 to 422 Bq/m3; the radon concentrations detected exceeded 148 Bq/m3 in 76% of the homes tested. Additionally, liquid scintillation counting showed concentrations of radon in drinking water ranging from 4.3 to 42 kBq/m3. The high activity of 238U in soil found in some places may be a result of the uranium milling process performed 20 years ago in the area. High radon concentrations indoor and in water may be explained by assuming the presence of uranium-bearing rocks underneath of the city, similar to a felsic dike located near Aldama. The estimated annual effective dose of gamma radiation from the soil and radon inhalation was 3.83 mSv.

L. Colmenero Sujo; M.E. Montero Cabrera; L. Villalba; M. Rentería Villalobos; E. Torres Moye; M. García León; R. García-Tenorio; F. Mireles García; E.F. Herrera Peraza; D. Sánchez Aroche

2004-01-01T23:59:59.000Z

142

Internal Dose Estimates from  

E-Print Network [OSTI]

Appendix F Internal Dose Estimates from NTS Fallout F-1 #12;Radiation Dose to the Population;TABLE OF CONTENTS Page F- Part I. Estimates of Dose...........................................................................................40 Comparison to dose estimates from global fallout

143

Parameter Estimation Through Ignorance  

E-Print Network [OSTI]

Dynamical modelling lies at the heart of our understanding of physical systems. Its role in science is deeper than mere operational forecasting, in that it allows us to evaluate the adequacy of the mathematical structure of our models. Despite the importance of model parameters, there is no general method of parameter estimation outside linear systems. A new relatively simple method of parameter estimation for nonlinear systems is presented, based on variations in the accuracy of probability forecasts. It is illustrated on the Logistic Map, the Henon Map and the 12-D Lorenz96 flow, and its ability to outperform linear least squares in these systems is explored at various noise levels and sampling rates. As expected, it is more effective when the forecast error distributions are non-Gaussian. The new method selects parameter values by minimizing a proper, local skill score for continuous probability forecasts as a function of the parameter values. This new approach is easier to implement in practice than alternative nonlinear methods based on the geometry of attractors or the ability of the model to shadow the observations. New direct measures of inadequacy in the model, the "Implied Ignorance" and the information deficit are introduced.

Hailiang Du; Leonard A. Smith

2012-06-06T23:59:59.000Z

144

State energy data report 1994: Consumption estimates  

SciTech Connect (OSTI)

This document provides annual time series estimates of State-level energy consumption by major economic sector. The estimates are developed in the State Energy Data System (SEDS), operated by EIA. SEDS provides State energy consumption estimates to members of Congress, Federal and State agencies, and the general public, and provides the historical series needed for EIA`s energy models. Division is made for each energy type and end use sector. Nuclear electric power is included.

NONE

1996-10-01T23:59:59.000Z

145

Estimation of trap levels in SrTiO{sub 3} epitaxial films from measurement of (LaSr)MnO{sub 3}/SrTiO{sub 3}/(LaSr)TiO{sub 3} p-i-n diode characteristics  

SciTech Connect (OSTI)

We have explored electrical trap levels inside SrTiO{sub 3} epitaxial films grown by the pulsed laser deposition method from electrical measurements of semiconducting oxide p-i-n diodes consisting of La{sub 0.85}Sr{sub 0.15}MnO{sub 3}/SrTiO{sub 3}/La{sub 0.05}Sr{sub 0.95}TiO{sub 3} trilayers. The prepared p-i-n diodes exhibited a marked temperature dependence in their current{endash}voltage (I{endash}V) characteristics. By attributing the temperature dependence of I{endash}V curves to the space-charge limitation due to the trapped charges inside the i-SrTiO{sub 3} layer, we estimated crudely the level of the dominant trap in the SrTiO{sub 3} layer as {similar_to}0.09 eV. The trap density was also estimated from the curve-fitting technique. At this moment, the trap densities were 10{sup 16} and 10{sup 18}/cm{sup 3} when SrTiO{sub 3} layers were grown at 650 and 630{degree}C, respectively. {copyright} 2001 American Institute of Physics.

Sugiura, Masanori; Uragou, Kazuyuki; Tachiki, Minoru; Kobayashi, Takeshi

2001-07-01T23:59:59.000Z

146

Chapter 6 - Subsea Cost Estimation  

Science Journals Connector (OSTI)

Publisher Summary This chapter provides guidelines for cost estimation during a project feasibility study, where the accuracy range is between ± 30% for subsea field development projects. Subsea cost refers to the cost of the whole project, which generally includes the capital expenditures (CAPEX) and operation expenditures (OPEX) of the subsea field development. The feasibility studies are performed before execution of the project, which may include three phases as shown in the figure: prefield development; conceptual/feasibility study; and front-end engineering design (FEED). Cost estimations are made for several purposes, and the methods used for the estimations as well as the desired amount of accuracy will be different. The cost estimation classifications according to Association for the Advancement of Cost Engineering (AACE): level of project definition: expressed as percentage of complete definition; end usage: typical purpose of estimation; methodology: typical estimating method; expected accuracy range: typical ± range relative to best index of 1; and preparation effort: typical degree of effort relative to least cost index of 1.

Yong Bai; Qiang Bai

2010-01-01T23:59:59.000Z

147

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

148

Types of Costs Types of Cost Estimates  

E-Print Network [OSTI]

first cost or capital investment): ­ Expenditures made to acquire or develop capital assets ­ Three main· Types of Costs · Types of Cost Estimates · Methods to estimate capital costs MIN E 408: Mining-site management or corporate level expenditure · Direct vs. Indirect Costs ­ Direct (or variable) costs apply

Boisvert, Jeff

149

Types of Costs Types of Cost Estimates  

E-Print Network [OSTI]

-Revenue Relationships · Capital Costs (or first cost or capital investment): ­ Expenditures made to acquire or develop05-1 · Types of Costs · Types of Cost Estimates · Methods to estimate capital costs MIN E 408 ­ off-site management or corporate level expenditure · Direct vs. Indirect Costs ­ Direct (or variable

Boisvert, Jeff

150

Cost Estimation Package  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

This chapter focuses on the components (or elements) of the cost estimation package and their documentation.

1997-03-28T23:59:59.000Z

151

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

152

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

153

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.

154

Check Estimates and Independent Costs  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

Check estimates and independent cost estimates (ICEs) are tools that can be used to validate a cost estimate. Estimate validation entails an objective review of the estimate to ensure that estimate criteria and requirements have been met and well documented, defensible estimate has been developed. This chapter describes check estimates and their procedures and various types of independent cost estimates.

1997-03-28T23:59:59.000Z

155

Concentrating On California Solar Power | Department of Energy  

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

Concentrating On California Solar Power Concentrating On California Solar Power Concentrating On California Solar Power June 14, 2011 - 4:22pm Addthis Ginny Simmons Ginny Simmons Former Managing Editor for Energy.gov, Office of Public Affairs What will the project do? Combined, the projects are estimated to create nearly 1,800 jobs and enough energy to power more than 100,000 homes. Today, Secretary Chu announced conditional commitments for approximately $2 billion in loan guarantees to two California concentrating solar power plants. The projects are estimated to create nearly 1,800 jobs and will utilize advanced technologies which can help drive down the cost of solar power. The two plants, the Mojave Solar Project in San Bernardino County, California and the Genesis Solar Project in Riverside County, California,

156

Company Level Imports Explanatory Notes  

Gasoline and Diesel Fuel Update (EIA)

Company Level Imports Explanatory Notes Company Level Imports Explanatory Notes Notice: Ongoing analysis of imports data to the Energy Information Administration reveals that some imports are not correctly reported on Form EIA-814 "Monthly Imports Report". Contact with the companies provides sufficient information for EIA to include these imports in the data even though they have not provided complete reports on Form EIA-814. Estimates are included in aggregate data, but the estimates are not included in the file of Company-Level Imports. Therefore, summation of volumes for PAD Districts 1-5 from the Company-Level Imports will not equal aggregate import totals. Explanation of Codes Used in Imports Database Files SURVEY_ID EIA-814 Survey Form Number for Collecting Petroleum Import Statistics

157

Measurement of indoor radon concentration in kindergartens in Sofia, Bulgaria  

Science Journals Connector (OSTI)

......significance of the overall factors for indoor radon concentration was tested by analysis of variance (ANOVA) and Kruskal-Wallis non-parametric test at a significance level of 95 %. Number of measurements, minimum, median, maximum, GM......

Kremena Ivanova; Zdenka Stojanovska; Martina Tsenova; Viktor Badulin; Bistra Kunovska

2014-11-01T23:59:59.000Z

158

Radon-222 Daughter Concentrations in Uranium Mine Atmospheres  

Science Journals Connector (OSTI)

... undertaken to measure the concentrations of 210Pb and 210Po in uranium mine atmospheres at various radon daughter concentration levels, and to determine the amount of 210Pb in the mine atmosphere ... atmosphere relative to that which would be produced from the decay of the short-lived radon daughters deposited in the lungs. Radium-226 was also measured in air so as ...

RICHARD L. BLANCHARD

1969-07-19T23:59:59.000Z

159

PCB contaminated dust on indoor surfaces – Health risks and acceptable surface concentrations in residential and occupational settings  

Science Journals Connector (OSTI)

Polychlorinated biphenyls (PCBs) have been used in diverse purposes such as indoor paints. Removal of these paints with dust creating techniques, like sandblasting, will result in contamination of building surfaces with PCB-containing dust. Objectives of this study was to analyze the PCB concentrations on surfaces after sandblasting with silica using wipe samples and estimate the resulting health risks and further calculate the risk based acceptable PCB surface concentrations that do not cause incremental lifetime cancer risk higher that 10?5 or does not cause immunosupression effects in residential use or in occupational settings. Both deterministic and probabilistic approaches were used. The total PCB concentrations on surfaces ranged from 10 to 1100 ?g/m2. Estimated cancer risk was 1.2 × 10?4 for childhood exposure, 1.3 × 10?5 for adult residents and 1.5 × 10?5 for occupational exposure. Probabilistic risk assessment revealed that point estimates were quite reasonable and located between 45th and 79th percentiles on probabilistic distribution of risk. The noncancer risks were calculated as hazard quotients (HQ) which ranged from 3.3 to 35 depending on the exposure scenario. Acceptable surface concentrations based on noncancer effects that are protective for 95% of exposed population were 7 ?g/m2 for residential use, 65 ?g/m2 for residential use if only adults will be exposed and 140 ?g/m2 for occupational use. Preliminary cleanup experiment revealed that when contaminated dust was carefully removed with industrial vacuum cleaner and further washed with terpene containing liquid the surface concentration dropped below the acceptable levels calculated in this study.

Sari Kuusisto; Outi Lindroos; Tiina Rantio; Eero Priha; Tuula Tuhkanen

2007-01-01T23:59:59.000Z

160

Radionuclide Concentrations in Deer and Elk from Los Alamos National Laboratory: 1991-1998  

SciTech Connect (OSTI)

Mule deer (Odocoileus hemionus) and Rocky Mountain elk (Cervus elaphus) forage in many areas at Los Alamos National Laboratory (LANL) that may contain radioactivity above natural and/or worldwide fallout levels. This paper summarizes radionuclide concentrations 3H, 90Sr, 137Cs, 238Pu, 239,240Pu, 241Am, and total uranium in muscle and bone tissue of deer and elk collected from LANL lands from 1991 through 1998. Also, the committed effective dose equivalent (CEDE) and the risk of excess cancer fatalities (RECF) to people who ingest muscle and bone from deer and elk collected from LANL lands were estimated. Most radionuclide concentrations in muscle and bone from individual deer and elk collected from LANL lands were either at less than detectable quantities (where the analytical result was smaller than two counting uncertainties) and/or within upper (95%) level background (BG) concentrations. As a group, most radionuclides in muscle and bone of deer and elk from LANL lands were not significantly higher (p<0.10) than in similar tissues from deer and elk collected from BG locations. Also, elk that had been radio collared and tracked for two years and spent an average time of 50% on LANL lands were not significantly different in most radionuclides from road kill elk that have been collected as part of the environmental surveillance program. Overall, the upper (95%) level net CEDES (the CEDE plus two sigma for each radioisotope minus background) at the most conservative ingestion rate (51 lbs of muscle and 13 lbs of bone) were as follows: deer muscle = 0.220, deer bone = 3.762, elk muscle = 0.117, and elk bone = 1.67 mrendy. AU CEDES were far below the International Commission on Radiological Protection guideline of 100 mrem/y, and the highest muscle plus bone CEDE (4.0 mrendy) corresponded to a RECF of 2E-06 which is far below the Environmental Protection Agency upper level guideline of 1E04.

D. H. Kraig; J. K. Ferenbaugh; J. R. Biggs; K. D. Bennett; M. A. Mullen; P. R. Fresquez

1998-12-01T23:59:59.000Z

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While these samples are representative of the content of NLEBeta,
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161

Radiation Dose Estimates from  

E-Print Network [OSTI]

Summary: Radiation Dose Estimates from Hanford Radioactive Material Releases to the Air- tantly, what radiation dose people may have received. An independent Technical Steering Panel (TSP, additionalProjectworkcouldresultin revisions of these dose estimates. April 21, 1994 Companion

162

State Energy Production Estimates  

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

State Energy Production Estimates 1960 Through 2012 2012 Summary Tables Table P1. Energy Production Estimates in Physical Units, 2012 Alabama 19,455 215,710 9,525 0 Alaska 2,052...

163

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

164

Estimated Farm Level Benefits of Improved Irrigation Efficiency  

E-Print Network [OSTI]

for pumping since 1973. For example, in the Trans Pecos Region of Texas, natural gas prices increased 450% from 1972 to 1975. Energy has become one of the most important factors in irrigated crop production. A 1975 study showed that 53% of the total variable...

Lee, John G.; Lacewell, Ronald D.; Ellis, John R.; Reneau, Duane R.

1984-06-10T23:59:59.000Z

165

CLIMATE CHANGE SCENARIOS AND SEA LEVEL RISE ESTIMATES FOR THE  

E-Print Network [OSTI]

· Environmentally Preferred Advanced Generation · Industrial/Agricultural/Water End-Use Energy Efficiency's electricity and natural gas ratepayers. The PIER Program strives to conduct the most promising public interest: · Buildings End-Use Energy Efficiency · Energy-Related Environmental Research · Energy Systems Integration

166

Types of Cost Estimates  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

The chapter describes the estimates required on government-managed projects for both general construction and environmental management.

1997-03-28T23:59:59.000Z

167

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

168

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...

169

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

170

External Dose Estimates from  

E-Print Network [OSTI]

Appendix G External Dose Estimates from Global Fallout G-1 #12;External Radiation Exposure-MQ-003539 March 15, 2000 G-2 #12;Abstract This report provides estimates of the external radiation-62. Estimates are given on a county by county basis for each month from 1953-1972. The average population dose

171

External Dose Estimates from  

E-Print Network [OSTI]

Appendix E External Dose Estimates from NTS Fallout E-1 #12;External Radiation Exposure. 1, 1999) E-2 #12;Abstract This report provides estimates of the external radiation exposure of this report to: "Prepare crude estimates of the doses from external irradiation received by the American

172

Sea Level CD-ROMs Introduction  

E-Print Network [OSTI]

Sea Level CD-ROMs Introduction The Tropical Ocean Global Atmosphere (TOGA) Sea Level Center Service for Mean Sea Level. This CD-ROM contains the holdings of the WDC as of July 1994, which consists with the greatest concentration between 5 and 30 years, although a few sites have over 70 years. CD-ROM Contents

173

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

174

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

175

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

176

Concentration of marc extracts by membrane techniques  

Science Journals Connector (OSTI)

By-products obtained from red currant processing still contain large amounts of useful components, e.g. pectin. Pectin was extracted from red currant marc with water at a solid/liquid ratio of 1:10. To reduce the operating costs of further possessing, we concentrated the pectin solution by membrane separation, i.e. nanofiltration (NF) and reverse osmosis (RO). The objectives of our work were to study the effects of the operating pressure and cross-volume flow rate on the flux and on the membrane separation concentration ratio in order to establish the optimum operating conditions and to evaluate the contributions of the fouling, cake and membrane resistances to the overall resistance. Flat-sheet RO and a spiral-wound NF membrane were applied in the work. The conductivity, the color, the viscosity and the TSS of the permeate and the concentrate were followed during the measurements. Concentration by RO resulted in an increase of the TSS content to 4.28°Brix; for NF the corresponding level was 8.88°Brix. The membrane resistance and the fouling resistance were the determinant relative to the gel resistance.

C. Hodúr; Sz. Kertész; S. Beszédes; Zs. László; G. Szabó

2009-01-01T23:59:59.000Z

177

Cedar Key Aquaculture Workshop Sulfide Concentrations in Sediments  

E-Print Network [OSTI]

Cedar Key Aquaculture Workshop Sulfide Concentrations in Sediments and Water: Influence on Hard;ObjectivesObjectives Examine sediment sulfide levels in the SuwanneeExamine sediment sulfide levels of sulfide on hard clam survivalsurvival #12;MethodsMethods SedimentSediment porewaterporewater samples

Florida, University of

178

EPA 402-R-93-076 ESTIMATING RADIOGENIC CANCER RISKS  

E-Print Network [OSTI]

comparing health risk estimates due to low level exposures of low-LET radiation based on models recently This document presents a revised methodology for EPA's estimation of cancer risks due to low-LET radiation, the risk models are applied to estimate organ-specific risks, per unit dose, for a stationary population

179

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

180

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

Note: This page contains sample records for the topic "level concentration estimated" 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

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

182

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

183

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

184

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

185

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

186

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

187

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

188

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

189

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

190

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

191

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

192

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

193

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

194

WHAT DO THREAT LEVELS AND RESPONSE LEVELS MEAN? THREAT LEVELS  

E-Print Network [OSTI]

WHAT DO THREAT LEVELS AND RESPONSE LEVELS MEAN? THREAT LEVELS: The UK Threat Level is decided by the Government's Joint Terrorism Analysis Centre (JTAC). It is the system to assess the threat to the UK from Threat Levels: Low - an attack is unlikely Moderate - an attack is possible, but not likely Substantial

Edinburgh, University of

195

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 | January 15, 2013 | Ganapathi Thin Film mirror is ~40-50% cheaper and 60% lighter than SOA * Project leverages extensive space experience by JPL and L'Garde to develop a low-cost parabolic dish capable of providing 4 kW thermal. Key features: * Metallized reflective thin film material with high reflectivity (>93%) with polyurethane foam backing * Single mold polyurethane backing fabrication enables low cost high production manufacturing * Ease of panel installation and removal enables repairs and results in a low total life cycle cost * Deployment of multiple dishes enhances system level optimizations by simulating larger fields which addresses issues like shared resources

196

Effect of low and high storage temperatures on head space gas concentrations and physical properties of wood pellets  

SciTech Connect (OSTI)

Headspace gas concentrations and wood pellet properties were studied in sealed glass canisters at 5–40 degrees C storage temperatures. CO2 and CO concentrations at 5, 10, 20 and 40 degrees C at the end of 23–28 days of storage were 1600 and 200, 4700 and 1200, and 31 200 and 15 800 parts per million by volume (ppmv) respectively. Corresponding O2 concentration was about 19•49, 19•20, 18•0 and 2•07% respectively. Non-linear regression equations adequately described the gas concentrations in the storage container as a function of time. Safe level estimation functions developed were linear for O2 and logarithmic for CO and CO2 concentrations. Measured pellet properties moisture, length, diameter, unit, bulk and tapped density, durability, calorific value, ash content and per cent fines were in the range of 4•6–5•02%, 14–15 mm, 6•4–6•5 mm, 1125–1175 kg m-3, 750–770 kg m-3, 825–840 kg m-3, 73–74%, 18•32–18•78 MJ kg-1, 0•65–0•74% and 0•13–0•15%. Durability values of pellets decreased by 13% at 40 degrees C storage temperature and other properties changed marginally.

Jaya Shankar Tumuluru; Shahab Sokhansanj; C. Jim Lim; Tony Bi; Xingya Kuang; Staffan Melin

2013-11-01T23:59:59.000Z

197

Resource Optimization in a Wireless Sensor Network with Guaranteed Estimator  

E-Print Network [OSTI]

algorithm at the fusion center, and provide a closed-form expression for the steady-state error covariance energy consumption and guarantees a desired level of estimation quality at the fusion center. We further a single sensor may not be enough to provide a desired level of estimation quality, and data fusion from

Murray, Richard M.

198

Effects of cooking on levels of PCBs in the fillets of winter flounder (Pseudopleuronectes americanus)  

SciTech Connect (OSTI)

The Pacific Northwest Laboratory and Battelle Ocean Sciences performed a study to determine the effect of cooking on polychlorinated biphenyl (PCB) levels in the fillets of winter flounder (Pseudopleuronectes americanus). Broiling, pan frying, and deep frying in oil were tested on fillets from 21 fish collected from New Bedford Harbor, Massachusetts, on February 21, 1991. The evaluation involved estimating the change in PCB concentrations using a mass-balance approach that factored the change in fillet weight resulting from cooking with the changes in PCB concentration expressed on a precooked wet-weight basis. Deep frying in oil resulted in a 47% reduction in total PCB levels in fillet tissue. Additionally, deep frying caused a 40% reduction in fillet mass. Pan frying and broiling resulted in statistically in insignificant increases in total PCB levels of 15% and 17%, respectively. Fillet mass reductions resulting from pan frying and broiling were 7% and 15%, respectively. The effects of cooking on 18 individual congeners generally paralleled the results observed for total PCB. All 18 congeners were significantly reduced by deep frying. Congener Cl{sub 2}(08) also was significantly reduced by either pan frying. Congeners Cl{sub 5}(105) and Cl{sub 5}(118) showed apparent significant increases in concentrations following pan frying. Congeners Cl{sub 5}(105), Cl{sub 5}(118), and C1{sub 6}(138) showed significant increases in concentration following broiling.

Poston, T.M. [Pacific Northwest Lab., Richland, WA (United States); Durell, G.S.; Koczwara, G.; Spellacy, A.M. [Battelle Ocean Sciences, Duxbury, MA (United States)

1995-08-01T23:59:59.000Z

199

Appendix D Surface Water and Ground Water Time-Concentration Plots,  

Office of Legacy Management (LM)

Surface Water and Ground Water Time-Concentration Plots, Surface Water and Ground Water Time-Concentration Plots, Stream Discharge Measurements, Ground Water Level Data, and Ground Water Well Hydrographs This page intentionally left blank Contents Section .................................................................................. Surface Water Time-Concentration Plots D1.O ............................................................................................... Stream Discharge Measurements D2.0 ............................................................. Ground Water Time-Concentration Plots for Uranium D3.0 .......................................................................................................... Ground Water Level Data D4.0 ..............................................................................................

200

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

Note: This page contains sample records for the topic "level concentration estimated" 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

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

202

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

203

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...

204

Life Cycle Greenhouse Gas Emissions of Trough and Tower Concentrating Solar Power Electricity Generation: Systematic Review and Harmonization  

SciTech Connect (OSTI)

In reviewing life cycle assessment (LCA) literature of utility-scale concentrating solar power (CSP) systems, this analysis focuses on reducing variability and clarifying the central tendency of published estimates of life cycle greenhouse gas (GHG) emissions through a meta-analytical process called harmonization. From 125 references reviewed, 10 produced 36 independent GHG emissions estimates passing screens for quality and relevance: 19 for parabolic trough (trough) technology and 17 for power tower (tower) technology. The interquartile range (IQR) of published estimates for troughs and towers were 83 and 20 grams of carbon dioxide equivalent per kilowatt-hour (g CO2-eq/kWh),1 respectively; median estimates were 26 and 38 g CO2-eq/kWh for trough and tower, respectively. Two levels of harmonization were applied. Light harmonization reduced variability in published estimates by using consistent values for key parameters pertaining to plant design and performance. The IQR and median were reduced by 87% and 17%, respectively, for troughs. For towers, the IQR and median decreased by 33% and 38%, respectively. Next, five trough LCAs reporting detailed life cycle inventories were identified. The variability and central tendency of their estimates are reduced by 91% and 81%, respectively, after light harmonization. By harmonizing these five estimates to consistent values for global warming intensities of materials and expanding system boundaries to consistently include electricity and auxiliary natural gas combustion, variability is reduced by an additional 32% while central tendency increases by 8%. These harmonized values provide useful starting points for policy makers in evaluating life cycle GHG emissions from CSP projects without the requirement to conduct a full LCA for each new project.

Burkhardt, J. J.; Heath, G.; Cohen, E.

2012-04-01T23:59:59.000Z

205

NREL: Concentrating Solar Power Research - Systems Analysis  

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

Systems Analysis Systems Analysis Featured Resource Learn more about NREL's capabilities in modeling and analysis of CSP Systems. NREL and other national laboratories support U.S. Department of Energy (DOE) systems analysis activities to evaluate and validate the cost, performance, durability, and grid penetration impacts for concentrating solar power (CSP) technologies. DOE's systems analysis program focuses on the greatest opportunities for impact, based on estimates of the current and future costs of CSP plants, subsystems, and components. Opportunities and Potential Impact The DOE SunShot Initiative to reduce the installed cost of solar energy systems by 75% by the end of the decade will require low-cost configurations that are easy to integrate into the electric grid. Systems

206

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.

207

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

208

Introduction Estimation paramtrique (exemples)  

E-Print Network [OSTI]

Introduction Estimation paramétrique (exemples) FARMAN : Laboratoire SATIE Jean-Pierre Barbot J.P. Barbot Séminaires FARMAN (Traitement du Signal) - 1/36 #12;Introduction Estimation paramétrique (exemples de paramètres de synchronisation (VDSL 2) J.P. Barbot Séminaires FARMAN (Traitement du Signal) - 2

209

Internal Dose Estimates from  

E-Print Network [OSTI]

Appendix H Internal Dose Estimates from Global Fallout H-1 #12;Radiation Dose to the Population. 263-MQ-008090 September 30, 2000 H-2 #12;Radiation Dose to the Population of the Continental United Site Part I. Estimates of Dose Lynn R. Anspaugh Lynn R. Anspaugh, Consulting Salt Lake City, UT Report

210

Estimating Specialty Costs  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

Specialty costs are those nonstandard, unusual costs that are not typically estimated. Costs for research and development (R&D) projects involving new technologies, costs associated with future regulations, and specialty equipment costs are examples of specialty costs. This chapter discusses those factors that are significant contributors to project specialty costs and methods of estimating costs for specialty projects.

1997-03-28T23:59:59.000Z

211

Sedimentation behavior of noble metal particles in simulated high-level waste borosilicate glasses  

SciTech Connect (OSTI)

Solubility of noble metal elements (NME) in the melted borosilicate glass is much smaller than its normal concentration of the high level liquid waste. Thus most of NME show small particles in the melted glass and tend to sediment in the bottom region of the vitrification melter due to their higher density than that of glass. Experiments of the sedimentation of NME particles in the melted glass were carried out under static condition. Three conditions of initial NME concentration (1.1, 3.0, 6.1 wt % with an equivalent for each oxide) in the simulated glass were set and held at 1100 C. degrees up to 2880 hours. The specimen with 1.1 wt % initial NME concentration indicated zone settling, and the settling rate of the interface is constant: 2.4 mm/h. This sedimentation behavior is the type of rapid settling. Following the rapid settling, the settling rate goes gradually slower; this is the type of compressive settling. The specimens with 3.0 wt % and 6.1 wt % initial NME concentration showed compression settling from the beginning. From the settling curve of the interface, the maximum concentration of NME in sediment was estimated to be around 23- 26 wt %. Growth of NME particles was observed by holding at 1100 C. degrees for up to 2880 hours. The viscosity becomes higher as NME concentration increases and the dependence on shear rate becomes simultaneously stronger. The effect of the particle growth to viscosity appears to be not significant.

Nakajima, M.; Ohyama, K.; Morikawa, Y.; Miyauchi, A.; Yamashita, T. [Japan Atomic Energy Agency, 4-33 Muramatsu, Tokai-mura, Naka-gun, Ibaraki 319-1109 (Japan); Komamine, S.; Ochi, E. [Japan Nuclear Fuel Limited, Bussan-Bldg. Bekkan, 1-1-5 Nishi-Shinbashi Minato-ku, Tokyo 105-0003 (Japan)

2013-07-01T23:59:59.000Z

212

DISSOLVED CONCENTRATION LIMITS OF RADIOACTIVE ELEMENTS  

SciTech Connect (OSTI)

The purpose of this study is to evaluate dissolved concentration limits (also referred to as solubility limits) of elements with radioactive isotopes under probable repository conditions, based on geochemical modeling calculations using geochemical modeling tools, thermodynamic databases, field measurements, and laboratory experiments. The scope of this modeling activity is to predict dissolved concentrations or solubility limits for 14 elements with radioactive isotopes (actinium, americium, carbon, cesium, iodine, lead, neptunium, plutonium, protactinium, radium, strontium, technetium, thorium, and uranium) important to calculated dose. Model outputs for uranium, plutonium, neptunium, thorium, americium, and protactinium are in the form of tabulated functions with pH and log (line integral) CO{sub 2} as independent variables, plus one or more uncertainty terms. The solubility limits for the remaining elements are either in the form of distributions or single values. The output data from this report are fundamental inputs for Total System Performance Assessment for the License Application (TSPA-LA) to determine the estimated release of these elements from waste packages and the engineered barrier system. Consistent modeling approaches and environmental conditions were used to develop solubility models for all of the actinides. These models cover broad ranges of environmental conditions so that they are applicable to both waste packages and the invert. Uncertainties from thermodynamic data, water chemistry, temperature variation, and activity coefficients have been quantified or otherwise addressed.

NA

2004-11-22T23:59:59.000Z

213

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

214

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

215

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

216

Buildings GHG Mitigation Estimator Worksheet, Version 1 | Department of  

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

Buildings GHG Mitigation Estimator Worksheet, Version 1 Buildings GHG Mitigation Estimator Worksheet, Version 1 Buildings GHG Mitigation Estimator Worksheet, Version 1 Xcel document describes Version 1 of the the Buildings GHG Mitigation Estimator tool. This tool assists federal agencies in estimating the greenhouse gas mitigation reduction from implementing energy efficiency measures across a portfolio of buildings. It is designed to be applied to groups of office buildings, for example, at a program level (regional or site) that can be summarized at the agency level. While the default savings and cost estimates apply to office buildings, users can define their own efficiency measures, costs, and savings estimates for inclusion in the portfolio assessment. More information on user-defined measures can be

217

Impact of Light-Duty Vehicle Emissions on 21st Century Carbon Dioxide Concentrations  

SciTech Connect (OSTI)

The impact of light-duty passenger vehicle emissions on global carbon dioxide concentrations was estimated using the MAGICC reduced-form climate model combined with the PNNL contribution to the CCSP scenarios product. Our central estimate is that tailpipe light duty vehicle emissions of carbon-dioxide over the 21st century will increase global carbon dioxide concentrations by slightly over 12 ppmv by 2100.

Smith, Steven J.; Kyle, G. Page

2007-08-04T23:59:59.000Z

218

DOE Statement on Savannah River Site Vitrified Waste Concentrations |  

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

Statement on Savannah River Site Vitrified Waste Concentrations Statement on Savannah River Site Vitrified Waste Concentrations DOE Statement on Savannah River Site Vitrified Waste Concentrations April 30, 2010 - 12:30pm Addthis "The Office of Environmental Management has decided not to move forward at this time with its February decision to direct contractors to start planning for higher concentrations of plutonium in waste canisters at the Savannah River Site. While this may ultimately be a better way to manage and minimize the volume of waste, the Department wants to further review the issues involved before proceeding. No canisters have been filled at the higher concentration level." Addthis Related Articles Energy Secretary Chu Announces $6 Billion in Recovery Act Funding for Environmental Cleanup Department of Energy Projects Win 36 R&D 100 Awards for 2011

219

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

220

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.

Note: This page contains sample records for the topic "level concentration estimated" 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

Cost Estimating Guide  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

This Guide provides uniform guidance and best practices that describe the methods and procedures that could be used in all programs and projects at DOE for preparing cost estimates. No cancellations.

2011-05-09T23:59:59.000Z

222

: Helmholtz machine estimation .  

E-Print Network [OSTI]

: Helmholtz machine density estimation . . : . . . (supervised learning) , (active learning) (query learning) [1, 3]. . (unsupervised learning), . , [5]. . Helmholtz machine , . Helmholtz machine : Helmholtz machine [2] . Helmholtz machine (generative network) (recognition network) . , , . Helmholtz machine (self

223

ESTIMATING COMPLEMENTARITY BETWEEN EDUCATION AND TRAINING  

E-Print Network [OSTI]

ESTIMATING COMPLEMENTARITY BETWEEN EDUCATION AND TRAINING Christian BELZIL Jørgen HANSEN Nicolai BETWEEN EDUCATION AND TRAINING* Christian BELZIL1 Jørgen HANSEN2 Nicolai KRISTENSEN3 November 2008 Cahier-schooling training that explicitly allows for possible complementarity between initial schooling levels and returns

Paris-Sud XI, Université de

224

Estimating Power System Dynamic States Using Extended Kalman Filter  

SciTech Connect (OSTI)

Abstract—The state estimation tools which are currently deployed in power system control rooms are based on a steady state assumption. As a result, the suite of operational tools that rely on state estimation results as inputs do not have dynamic information available and their accuracy is compromised. This paper investigates the application of Extended Kalman Filtering techniques for estimating dynamic states in the state estimation process. The new formulated “dynamic state estimation” includes true system dynamics reflected in differential equations, not like previously proposed “dynamic state estimation” which only considers the time-variant snapshots based on steady state modeling. This new dynamic state estimation using Extended Kalman Filter has been successfully tested on a multi-machine system. Sensitivity studies with respect to noise levels, sampling rates, model errors, and parameter errors are presented as well to illustrate the robust performance of the developed dynamic state estimation process.

Huang, Zhenyu; Schneider, Kevin P.; Nieplocha, Jaroslaw; Zhou, Ning

2014-10-31T23:59:59.000Z

225

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

226

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

227

HLW-OVP-97-0068 High Level Waste Management Division High-Level...  

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

not exceed the applicable concentration limits for Class C low-level waste as set out in 10 CFR Part 61; and (c) will be managed, pursuant to the Atomic Energy Act, so that safety...

228

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

229

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

230

Weekly Coal Production Estimation Methodology  

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

Weekly Coal Production Estimation Methodology Step 1 (Estimate total amount of weekly U.S. coal production) U.S. coal production for the current week is estimated using a ratio...

231

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

232

Concentrating-collector mass-production feasibility. Volume I. Final report  

SciTech Connect (OSTI)

The Performance Prototype Trough (PPT) Concentrating Collector consists of four 80-foot modules in a 320-foot row. The collector was analyzed, including cost estimates and manufacturing processes to produce collectors in volumes from 100 to 100,000 modules per year. The four different reflector concepts considered were the sandwich reflector structure, sheet metal reflector structure, molded reflector structure, and glass laminate structure. The sheet metal and glass laminate structures are emphasized with their related structure concepts. A preliminary manufacturing plan is offered that includes: documentation of the manufacturing process with production flow diagrams; labor and material costs at various production levels; machinery and equipment requirements including preliminary design specifications; and capital investment costs for a new plant. Of five reflector designs considered, the two judged best and considered at length are thin annealed glass and steel laminate on steel frame panel and thermally sagged glass. Also discussed are market considerations, costing and selling price estimates, design cost analysis and make/buy analysis. (LEW)

Not Available

1981-11-02T23:59:59.000Z

233

REQUESTS FOR RETIREMENT ESTIMATE  

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

REQUEST FOR RETIREMENT ANNUITY ESTIMATE REQUEST FOR RETIREMENT ANNUITY ESTIMATE Instructions: Please read and answer the following questions thoroughly to include checking all applicable boxes. Unanswered questions may delay processing. Print and Fax back your request form to 202.586.6395 or drop request to GM-169. The request will be assigned to your servicing retirement specialist. They will confirm receipt of your request. SECTION A Request Submitted _____________________ ______________________ ________________________ _____________________ Name (last, first, middle) Last four SSN Date of Birth ___________________________ _________________________ __________________________ Organization Office Telephone Number Fax Number

234

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...

235

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...

236

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...

237

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...

238

Nitrogen oxides emission trends in Monthly emission estimates of nitrogen oxides from space provide  

E-Print Network [OSTI]

Chapter 5 Nitrogen oxides emission trends in East Asia Abstract Monthly emission estimates present first results of a new emission estimation algorithm, specifically designed to use daily satellite observations of column concentrations for fast updates of emission estimates of short-lived atmospheric

Haak, Hein

239

Lane estimation for autonomous vehicles using vision and LIDAR  

E-Print Network [OSTI]

Autonomous ground vehicles, or self-driving cars, require a high level of situational awareness in order to operate safely and eciently in real-world conditions. A system able to quickly and reliably estimate the location ...

Huang, Albert Shuyu

2010-01-01T23:59:59.000Z

240

Deriving Atmospheric Density Estimates Using Satellite Precision Orbit Ephemerides  

E-Print Network [OSTI]

Model regardless of solar and geomagnetic activity levels. The POE density estimates were obtained with the desired accuracy for a ±10% variation in the ballistic coefficient used to initialize the process. Fit span length showed little influence...

Hiatt, Andrew Timothy

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "level concentration estimated" 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

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

242

Estimating SCR installation costs  

SciTech Connect (OSTI)

The EUCG surveyed 72 separate US installations of selective catalytic reduction (SCR) systems at coal-fired units totalling 41 GW of capacity to identify the systems' major cost drivers. The results, summarized in this article, provide excellent first-order estimates and guidance for utilities considering installing the downstream emissions-control technology. 4 figs., 1 tab.

Marano, M.; Sharp, G. [American Electric Power (United States)

2006-01-15T23:59:59.000Z

243

SPACE TECHNOLOGY Actual Estimate  

E-Print Network [OSTI]

SPACE TECHNOLOGY TECH-1 Actual Estimate Budget Authority (in $ millions) FY 2011 FY 2012 FY 2013 FY.7 247.0 Exploration Technology Development 144.6 189.9 202.0 215.5 215.7 214.5 216.5 Notional SPACE TECHNOLOGY OVERVIEW .............................. TECH- 2 SBIR AND STTR

244

Sea level budget over 20032008: A reevaluation from GRACE space gravimetry, satellite altimetry and Argo  

E-Print Network [OSTI]

global mean sea level rise during the 1993­2003 decade, the remaining rate of rise being essentially that recent years sea level rise can be mostly explained by an increase of the mass of the oceans. Estimating of sea level rise over that period. We next estimate the steric sea level (i.e., ocean thermal expansion

Berthier, Etienne

245

Integrate Experiments and Models to Estimate Exposure - (1) Building  

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

Integrate Experiments and Models to Estimate Exposure - (1) Building Integrate Experiments and Models to Estimate Exposure - (1) Building Fumigation and (2) Elemental Mercury Spill Speaker(s): Wanyu Chan Date: February 22, 2010 - 12:00pm Location: 90-3075 Seminar Host/Point of Contact: Michael Sohn Models that predict exposure concentrations in the indoor and outdoor air can be improved by experiments designed to validate or calibrate the models. This presentation will showcase two examples where experiments and models are integrated to estimate exposure concentrations. One example is the use of methyl bromide as fumigant at food processing facilities. Field studies were conducted at three mill sites that are representative of typical industry practices in terms of size, operation, and fumigation protocol. Concentrations of methyl bromide inside the mills and outdoors

246

Use of Cost Estimating Relationships  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

Cost Estimating Relationships (CERs) are an important tool in an estimator's kit, and in many cases, they are the only tool. Thus, it is important to understand their limitations and characteristics. This chapter discusses considerations of which the estimator must be aware so the Cost Estimating Relationships can be properly used.

1997-03-28T23:59:59.000Z

247

Reinforcing flood–risk estimation  

Science Journals Connector (OSTI)

...publication of the Flood estimation handbook, studies of ood risk are now...especially for its neglect of the physics of catchment pro- cesses of...recommended in the Flood estimation handbook (Institute of Hydrology 1999...estimates. The Flood estimation handbook (Institute of Hydrology 1999...

2002-01-01T23:59:59.000Z

248

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

249

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

250

Assessing the Uncertainty in Projecting Local Mean Sea Level from Global Temperature  

Science Journals Connector (OSTI)

The process of moving from an ensemble of global climate model temperature projections to local sea level projections requires several steps. Sea level was estimated in Olympia, Washington (a city that is very concerned with sea level rise because ...

Peter Guttorp; Alex Januzzi; Marie Novak; Harry Podschwit; Lee Richardson; Colin D. Sowder; Aaron Zimmerman; David Bolin; Aila Särkkä

2014-09-01T23:59:59.000Z

251

Potential Inundation Due to Rising Sea Levels in the San Francisco Bay Region  

E-Print Network [OSTI]

impact of accelerated sea level rise on San Francisco Bay.change scenarios and sea level rise estimates for thedistribution of sea level rise over the 1950–2000 period.

Knowles, Noah

2010-01-01T23:59:59.000Z

252

NPP Estimation for Grasslands  

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

NPP for Grasslands NPP for Grasslands Introduction The Oak Ridge DAAC Net Primary Production (NPP) Database includes field measurements from grassland study sites worldwide. The following brief review and discussion is intended to explain the complexity of NPP estimates derived from grassland measurements. There is no single answer to the question, "What is the productivity of the ecosystem at study site A?"; rather there may be range of estimates of NPP, depending upon what data were actually collected and how these data are processed. Although some of these methods for determining NPP for grasslands may be applicable to other vegetation types (e.g., semi-deserts, tundra, or some crops), methods for forests, in particular, are significantly different. Nevertheless, it should be possible to answer the question, "Is this modelled value of NPP reasonable for this ecosystem type at this location?"

253

State energy data report 1996: Consumption estimates  

SciTech Connect (OSTI)

The State Energy Data Report (SEDR) provides annual time series estimates of State-level energy consumption by major economic sectors. The estimates are developed in the Combined State Energy Data System (CSEDS), which is maintained and operated by the Energy Information Administration (EIA). The goal in maintaining CSEDS is to create historical time series of energy consumption by State that are defined as consistently as possible over time and across sectors. CSEDS exists for two principal reasons: (1) to provide State energy consumption estimates to Members of Congress, Federal and State agencies, and the general public and (2) to provide the historical series necessary for EIA`s energy models. To the degree possible, energy consumption has been assigned to five sectors: residential, commercial, industrial, transportation, and electric utility sectors. Fuels covered are coal, natural gas, petroleum, nuclear electric power, hydroelectric power, biomass, and other, defined as electric power generated from geothermal, wind, photovoltaic, and solar thermal energy. 322 tabs.

NONE

1999-02-01T23:59:59.000Z

254

On Nuclear Energy Levels  

Science Journals Connector (OSTI)

...research-article On Nuclear Energy Levels K. M. Guggenheimer The formula for the energy levels of the rigid rotator...nuclei. Two kinds of nuclear rotation are discussed...an A relation for the energy levels of different nuclei...

1942-01-01T23:59:59.000Z

255

" Level: National Data;" " ...  

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

fuels is not available due to the potential" "environmental impact of storage tanks." " NFNo applicable RSE rowcolumn factor." " * Estimate less than 0.5." " WWithheld...

256

Estimating CNC discrimination with spondee words  

Science Journals Connector (OSTI)

Five experiments with normal listeners were performed to determine the percentage of CNC monosyllables correctly identified in various presentation paradigms at the speech reception threshold(SRT) for spondee materials. The purpose was to obtain information which would allow the quick estimation from the SRT of the stimulus level yielding these CNC percentages. Descending simple?up?and?down and best?of?three measuring techniques were used for SRT tests and best?of?five doublet and constant?level tests were employed for measuring CNC discrimination. All tests involved monaural (earphone) listening conditions in quiet or against a background of either 60 or 80 dB SPLwhite noise. Findings revealed that the various SRT tests estimated percentage CNC discrimination scores ranging in about 17–29% on the rising portion of articulation functions. In general present results indicated that SRT tests are most apt to measure approximately the 23% point on CNC functions for normal listeners.

Daniel L. Bode; Raymond Carhart

1975-01-01T23:59:59.000Z

257

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

258

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

259

Radon concentrations in ground and drinking water in the state of Chihuahua, Mexico  

Science Journals Connector (OSTI)

This paper reports 222Rn concentrations in ground and drinking water of nine cities of Chihuahua State, Mexico. Fifty percent of the 114 sampled wells exhibited 222Rn concentrations exceeding 11 Bq/L, the maximum contaminant level (MCL) recommended by the USEPA. Furthermore, around 48% (123 samples) of the tap-water samples taken from 255 dwellings showed radon concentrations over the MCL. There is an apparent correlation between total dissolved solids and radon concentration in ground-water. The high levels of 222Rn found may be entirely attributed to the nature of aquifer rocks.

L. Villalba; L. Colmenero Sujo; M.E. Montero Cabrera; A. Cano Jiménez; M. Rentería Villalobos; C.J. Delgado Mendoza; L.A. Jurado Tenorio; I. Dávila Rangel; E.F. Herrera Peraza

2005-01-01T23:59:59.000Z

260

Estimation of E. coli Concentrations from Failing On-Site Wastewater Treatment Facilities (OWTS) Using GIS  

E-Print Network [OSTI]

Failing Onsite Wastewater Treatment Systems (OWTSs) have been identified as a significant threat to water quality, discharging significant amounts of inadequately treated sewage effluents. When developing a Watershed Protection Plan (WPP), OWTS has...

Virani, Afreen Shiraz

2014-08-12T23:59:59.000Z

Note: This page contains sample records for the topic "level concentration estimated" 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

Estimates of the dose due to 222Rn concentrations in water  

Science Journals Connector (OSTI)

...Radiation Protection Dosimetry Vol...increasing interest in this naturally occuring radionuclide. In the...are a major source of radiation in two ways: first...air, location of the radiation source, anatomical models......

M. Galán López; A. Martín Sánchez; V. Gómez Escobar

2004-08-01T23:59:59.000Z

262

RADON AND RADIUM CONCENTRATION IN WATER FROM NORTH-WEST OF ROMANIA AND THE ESTIMATED DOSES  

Science Journals Connector (OSTI)

......524 Bq l1 with the average of 0.085 Bq l1...population during the consumption of water. Table-2 shows that the average of committed effective...expected doses from the consumption of water in Romania...Assessment for Radon in Homes and Workplaces...International Atomic Energy Agency. International......

M. Moldovan; V. Benea; D. C. Ni??; B. Papp; B. D. Burghele; N. Bican-Bri?an; C. Cosma

2014-07-01T23:59:59.000Z

263

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

264

Sea Level Changes in the Southeastern United States  

E-Print Network [OSTI]

climate change are usu- ally focused on sea level rise rather than on warming. In Florida most long-term stations measuring sea level are currently registering a rise of about 2 millimeters per year or about 8 estimates a rise of 32 inches by 2100 as the best guess for sea level rise in south Florida and a smaller

Ronquist, Fredrik

265

High Hydrogen Concentrations Detected In The Underground Vaults For RH-TRU Waste At INEEL Compared With Calculated Values Using The INEEL-Developed Computer Code  

SciTech Connect (OSTI)

About 700 remote-handled transuranic (RH-TRU) waste drums are stored in about 144 underground vaults at the Intermediate-Level Transuranic Storage Facility at the Idaho National Environmental and Engineering Laboratory’s (INEEL’s) Radioactive Waste Management Complex (RWMC). These drums were shipped to the INEEL from 1976 through 1996. During recent monitoring, concentrations of hydrogen were found to be in excess of lower explosive limits. The hydrogen concentration in one vault was detected to be as high as 18% (by volume). This condition required evaluation of the safety basis for the facility. The INEEL has developed a computer program to estimate the hydrogen gas generation as a function of time and diffusion through a series of layers (volumes), with a maximum five layers plus a sink/environment. The program solves the first-order diffusion equations as a function of time. The current version of the code is more flexible in terms of user input. The program allows the user to estimate hydrogen concentrations in the different layers of a configuration and then change the configuration after a given time; e.g.; installation of a filter on an unvented drum or placed in a vault or in a shipping cask. The code has been used to predict vault concentrations and to identify potential problems during retrieval and aboveground storage. The code has generally predicted higher hydrogen concentrations than the measured values, particularly for the drums older than 20 year, which could be due to uncertainty and conservative assumptions in drum age, heat generation rate, hydrogen generation rate, Geff, and diffusion rates through the layers.

Rajiv Bhatt; Soli Khericha

2005-02-01T23:59:59.000Z

266

An estimate by two methods of thyroid absorbed doses due to BRAVO fallout in several northern Marshall Islands  

SciTech Connect (OSTI)

Estimates of the thyroid absorbed doses due to fallout originating from the 1 March 1954 BRAVO thermonuclear test on Bikini Atoll have been made for several inhabited locations in the Northern Marshall Islands. Rongelap, Utirik, Rongerik and Ailinginae Atolls were also inhabited on 1 March 1954, where retrospective thyroid absorbed doses have previously been reconstructed. Current estimates are based primarily on external exposure data, which were recorded shortly after each nuclear test in the Castle Series, and secondarily on soil concentrations of {sup 137}Cs in samples collected in 1978 and 1988, along with aerial monitoring done in 1978. External exposures and {sup 137}Cs Soil concentrations were representative of the atmospheric transport and deposition patterns of the entire Castle Series tests and show that the BRAVO test was the major contributor to fallout exposure during the Castle series and other test series which were carried out in the Marshall Islands. These data have been used as surrogates for fission product radioiodines and telluriums in order to estimate the range of thyroid absorbed doses that may have occurred throughout the Marshall Islands. Dosimetry based on these two sets of estimates agreed within a factor of 4 at the locations where BRAVO was the dominant contributor to the total exposure and deposition. Both methods indicate that thyroid absorbed doses in the range of 1 Gy (100 rad) may have been incurred in some of the northern locations, whereas the doses at southern locations did not significantly exceed levels comparable to those from worldwide fallout. The results of these estimates indicate that a systematic medical survey for thyroid disease should be conducted, and that a more definitive dose reconstruction should be made for all the populated atolls and islands in the Northern Marshall Islands beyond Rongelap, Utirik, Rongerik and Ailinginae, which were significantly contaminated by BRAVO fallout. 30 refs., 2 figs., 10 tabs.

Musolino, S.V.; Hull, A.P. [Brookhaven National Lab., Upton, NY (United States); Greenhouse, N.A.

1997-10-01T23:59:59.000Z

267

An analysis of radar estimated precipitation to rain gauge measurements  

E-Print Network [OSTI]

the surface. These levels included 1.0 1.5@ 2.0 @ 2.5 km, and 3.0 km. Radar precipitation estimates were calculated at each 1.4 2 level using Z = 30ORand Z = 25OR" . The precipitation amounts, as measured by both the gauges and the radar,were used...

Gleason, Byron Edward

1997-01-01T23:59:59.000Z

268

Removal of Historic Low-Level Radioactive Sediment from the Port Hope Harbour - 13314  

SciTech Connect (OSTI)

At the Port Hope Harbour, located on the north shore of Lake Ontario, the presence of low-level radioactive sediment, resulting from a former radium and uranium refinery that operated alongside the Harbour, currently limits redevelopment and revitalization opportunities. These waste materials contain radium-226, uranium, arsenic and other contaminants. Several other on-land locations within the community of Port Hope are also affected by the low-level radioactive waste management practices of the past. The Port Hope Project is a community initiated undertaking that will result in the consolidation of an estimated 1.2 million cubic metres of the low-level radioactive waste from the various sites in Port Hope into a new engineered above ground long-term waste management facility. The remediation of the estimated 120,000 m{sup 3} of contaminated sediments from the Port Hope Harbour is one of the more challenging components of the Port Hope Project. Following a thorough review of various options, the proposed method of contaminated sediment removal is by dredging. The sediment from the dredge will then be pumped as a sediment-water slurry mixture into geo-synthetic containment tubes for dewatering. Due to the hard substrate below the contaminated sediment, the challenge has been to set performance standards in terms of low residual surface concentrations that are attainable in an operationally efficient manner. (authors)

Kolberg, Mark [Baird and Associates, 1267 Cornwall Rd., Suite 100, Oakville ON, L6J7T5 (Canada)] [Baird and Associates, 1267 Cornwall Rd., Suite 100, Oakville ON, L6J7T5 (Canada); Case, Glenn [Atomic Energy of Canada Limited, Port Hope, ON (Canada)] [Atomic Energy of Canada Limited, Port Hope, ON (Canada); Ferguson Jones, Andrea [MMM Group Limited, Thornhill, ON (Canada)] [MMM Group Limited, Thornhill, ON (Canada)

2013-07-01T23:59:59.000Z

269

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

270

Ethylene Glycol Poisoning and Lactate Concentrations  

Science Journals Connector (OSTI)

......2009 letter Letter to the Editor Ethylene Glycol Poisoning and Lactate Concentrations...Wilrijkstraat 10, B-2650 Edegem, Belgium Ethylene glycol poisoning and lactate concentrations...Comment Letter | 107-21-1 Ethylene Glycol 50-21-5 Lactic Acid......

Philippe G. Jorens

2009-09-01T23:59:59.000Z

271

NREL: News - NREL Quantifies Significant Value in Concentrating Solar Power  

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

413 413 NREL Quantifies Significant Value in Concentrating Solar Power CSP with thermal energy storage boosts California electric grid April 24, 2013 Researchers from the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) have quantified the significant value that concentrating solar power (CSP) plants can add to an electric grid. The NREL researchers evaluated the operational impacts of CSP systems with thermal energy storage within the California electric grid managed by the California Independent System Operator (CAISO). NREL used a commercial production cost model called PLEXOS to help plan system expansion, to evaluate aspects of system reliability, and to estimate fuel cost, emissions, and other operational factors within the CAISO system. The

272

Concentration in Mathematics (2014-2015)  

E-Print Network [OSTI]

Concentration in Mathematics (2014-2015) What Can You Do With Math? Concentration in mathematics is an excellent preparation for a career in either pure or applied mathematics, in academia or in industry on mathematical methods, a math concentration can provide an invaluable background for many different careers

Wolfe, Patrick J.

273

Non-imaging optics in photovoltaic concentration  

Science Journals Connector (OSTI)

It is suggested that solar energy could become a more economical power source through the use of techniques which concentrate the maximum amount of light onto photovoltaic cells. Limits of concentration are discussed and the design of practical 3D concentrations is considered

A. Luque

1986-01-01T23:59:59.000Z

274

Concentration of Atmospheric Radon and Wind Direction  

Science Journals Connector (OSTI)

... in Lisbon, near the sea, is therefore excellent to test any probable relationship between radon concentration and wind directions since only half the possible wind directions are continental ones, ... since only half the possible wind directions are continental ones, therefore corresponding probably to higher radon concentrations. In order to study any correlation, the concentration of ...

F. BARREIRA

1961-06-17T23:59:59.000Z

275

Natural radioactivity in various water samples and radiation dose estimations in Bolu province, Turkey  

Science Journals Connector (OSTI)

Abstract The level of natural radioactivity for Bolu province of north-western Turkey was assessed in this study. There is no information about radioactivity measurement reported in water samples in the Bolu province so far. For this reason, gross ? and ? activities of 55 different water samples collected from tap, spring, mineral, river and lake waters in Bolu were determined. The mean activity concentrations were 68.11 mBq L?1, 169.44 mBq L?1 for gross ? and ? in tap water. For all samples the gross ? activity is always higher than the gross ? activity. All value of the gross ? were lower than the limit value of 500 mBq L?1 while two spring and one mineral water samples were found to have gross ? activity concentrations of greater than 1000 mBq L?1. The associated age-dependent dose from all water ingestion in Bolu was estimated. The total dose for adults had an average value exceeds the WHO recommended limit value. The risk levels from the direct ingestion of the natural radionuclides in tap and mineral water in Bolu were determinated. The mean 210Po and 228Ra risk the value of tap and mineral waters slightly exceeds what some consider on acceptable risk of 10?4 or less.

F. Korkmaz Gorur; H. Camgoz

2014-01-01T23:59:59.000Z

276

Estimating terrestrial uranium and thorium by antineutrino flux measurements  

E-Print Network [OSTI]

of uranium and thorium concentrations in geological reservoirs relies largely on geochemi- cal modelEstimating terrestrial uranium and thorium by antineutrino flux measurements Stephen T. Dye, and approved November 16, 2007 (received for review July 11, 2007) Uranium and thorium within the Earth produce

Mcdonough, William F.

277

Seasonal variation of radon concentrations in UK homes  

Science Journals Connector (OSTI)

The patterns of seasonal variation of radon concentrations were measured in 91 homes in five regions of the UK over a period of two years. The results showed that there was no significant difference between the regions in the pattern or magnitude of seasonal variation in radon concentrations. The arithmetic mean variation was found to be close to that found previously in the UK national survey. Differences in the pattern between the two years of the study were not significant. Two-thirds of homes in the study followed the expected pattern of high radon in the winter and low radon in the summer. Most of the rest showed little seasonal variation, and a few showed a reversed seasonal pattern. The study does not provide any clear evidence for the recorded house characteristics having an effect on the seasonal variation in radon concentrations in UK homes, though the statistical power for determining such effects is limited in this study. The magnitude of the seasonal variation varied widely between homes. Analysis of the individual results from the homes showed that because of the wide variation in the amount of seasonal variation, applying seasonal correction factors to the results of three-month measurements can yield only relatively small improvements in the accuracy of estimates of annual mean concentrations.

J C H Miles; C B Howarth; N Hunter

2012-01-01T23:59:59.000Z

278

Antiandrogenic activity of phthalate mixtures: Validity of concentration addition  

SciTech Connect (OSTI)

Phthalates and bisphenol A have very widespread use leading to significant exposure of humans. They are suspected to interfere with the endocrine system, including the androgen, estrogen and the thyroid hormone system. Here we analyzed the antiandrogenic activity of six binary, and one ternary mixture of phthalates exhibiting complete antiandrogenic dose–response curves, and binary mixtures of phthalates and bisphenol A at equi-effective concentrations of EC{sub 10}, EC{sub 25} and EC{sub 50} in MDA-kb2 cells. Mixture activity followed the concentration addition (CA) model with a tendency to synergism at high and antagonism at low concentrations. Isoboles and the toxic unit approach (TUA) confirmed the additive to synergistic activity of the binary mixtures BBP + DBP, DBP + DEP and DEP + BPA at high concentrations. Both methods indicate a tendency to antagonism for the EC{sub 10} mixtures BBP + DBP, BBP + DEP and DBP + DEP, and the EC{sub 25} mixture of DBP + BPA. A ternary mixture revealed synergism at the EC{sub 50}, and weak antagonistic activity at the EC{sub 25} level by the TUA. A mixture of five phthalates representing a human urine composition and reflecting exposure to corresponding parent compounds showed no antiandrogenic activity. Our study demonstrates that CA is an appropriate concept to account for mixture effects of antiandrogenic phthalates and bisphenol A. The interaction indicates a departure from additivity to antagonism at low concentrations, probably due to interaction with the androgen receptor and/or cofactors. This study emphasizes that a risk assessment of phthalates should account for mixture effects by applying the CA concept. -- Highlights: ? Antiandrogenic activity of mixtures of 2 and 3 phthalates are assessed in MDA-kb2 cells. ? Mixture activities followed the concentration addition model. ? A tendency to synergism at high and antagonism at low levels occurred.

Christen, Verena [University of Applied Sciences Northwestern Switzerland, School of Life Sciences, Gründenstrasse 40, CH-4132 Muttenz (Switzerland)] [University of Applied Sciences Northwestern Switzerland, School of Life Sciences, Gründenstrasse 40, CH-4132 Muttenz (Switzerland); Crettaz, Pierre; Oberli-Schrämmli, Aurelia [Swiss Federal Office of Public Health, Division Chemical Products, 3003 Bern (Switzerland)] [Swiss Federal Office of Public Health, Division Chemical Products, 3003 Bern (Switzerland); Fent, Karl, E-mail: karl.fent@bluewin.ch [University of Applied Sciences Northwestern Switzerland, School of Life Sciences, Gründenstrasse 40, CH-4132 Muttenz (Switzerland) [University of Applied Sciences Northwestern Switzerland, School of Life Sciences, Gründenstrasse 40, CH-4132 Muttenz (Switzerland); Swiss Federal Institute of Technology Zürich (ETH Zürich), Department of Environmental Sciences, 8092 Zürich (Switzerland)

2012-03-01T23:59:59.000Z

279

Nanofluidic Concentration Device for Biomolecules Utilizing Ion Concentration Polarization: Theory, Fabrication, and Applications  

E-Print Network [OSTI]

Recently, a new type of electrokinetic concentration devices has been developed in a microfluidic chip format, which allows efficient trapping and concentration of biomolecules by utilizing ion concentration polarization ...

Kim, Sung Jae

280

Potential Application Of Radionuclide Scaling Factors To High Level Waste Characterization  

SciTech Connect (OSTI)

Production sources, radiological properties, relative solubilities in waste, and laboratory analysis techniques for the forty-five radionuclides identified in Hanford?s Waste Treatment and Immobilization Plant (WTP) Feed Acceptance Data Quality Objectives (DQO) document are addressed in this report. Based on Savannah River Site (SRS) experience and waste characteristics, thirteen of the radionuclides are judged to be candidates for potential scaling in High Level Waste (HLW) based on the concentrations of other radionuclides as determined through laboratory measurements. The thirteen radionuclides conducive to potential scaling are: Ni-59, Zr-93, Nb-93m, Cd-113m, Sn-121m, Sn-126, Cs-135, Sm-151, Ra-226, Ra-228, Ac-227, Pa-231, and Th-229. The ability to scale radionuclides is useful from two primary perspectives: 1) it provides a means of checking the radionuclide concentrations that have been determined by laboratory analysis; and 2) it provides a means of estimating radionuclide concentrations in the absence of a laboratory analysis technique or when a complex laboratory analysis technique fails. Along with the rationale for identifying and applying the potential scaling factors, this report also provides examples of using the scaling factors to estimate concentrations of radionuclides in current SRS waste and into the future. Also included in the report are examples of independent laboratory analysis techniques that can be used to check results of key radionuclide analyses. Effective utilization of radionuclide scaling factors requires understanding of the applicable production sources and the chemistry of the waste. As such, the potential scaling approaches identified in this report should be assessed from the perspective of the Hanford waste before reaching a decision regarding WTP applicability.

Reboul, S. H.

2013-09-30T23:59:59.000Z

Note: This page contains sample records for the topic "level concentration estimated" 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

Optimal control of xenon concentration by observer design under reactor model uncertainty  

SciTech Connect (OSTI)

The state feedback in control theory enjoys many advantages, such as stabilization and improved transient response, which could be beneficially used for control of the xenon oscillation in a power reactor. It is, however, not possible in nuclear reactors to measure the state variables, such as xenon and iodine concentrations. For implementation of the optimal state feedback control law, it is thus necessary to estimate the unmeasurable state variables. This paper uses the Luenberger observer to estimate the xenon and iodine concentrations to be used in a linear quadratic problem with state feedback. To overcome the stiffness problem in reactor kinetics, a singular perturbation method is used.

Cho, Nam Z.; Yang, Chae Y.; Woo, Hae S.

1989-01-01T23:59:59.000Z

282

Carbon sequestration in forest vegetation of Beijing at sublot level  

Science Journals Connector (OSTI)

Based on forest inventory data (FID) at sublot level, we estimated the carbon sequestration in forest vegetation of Beijing, China in 2009. In this study, the carbon sequestration in forest vegetation at sublot l...

Yu Xiao; Kai An; Gaodi Xie; Chunxia Lu; Biao Zhang

2011-06-01T23:59:59.000Z

283

Concentrating solar power | Open Energy Information  

Open Energy Info (EERE)

Concentrating solar power Concentrating solar power (Redirected from Concentrating Solar Power) Jump to: navigation, search Concentrating Solar Power Basics (The following text is derived from NREL's concentrating solar power information page.)[1] Concentrating solar power (CSP) offers a utility-scale, firm, dispatchable renewable energy option that can help meet our nation's demand for electricity. CSP plants produce power by first using mirrors to focus sunlight to heat a working fluid. Ultimately, this high-temperature fluid is used to spin a turbine or power an engine that drives a generator. And the final product is electricity. Smaller CSP systems can be located directly where the power is needed. Larger, utility-scale CSP applications provide hundreds of megawatts of electricity for the power grid. Both linear concentrator and power tower

284

Metamaterial anisotropic flux concentrators and magnetic arrays  

E-Print Network [OSTI]

A metamaterial magnetic flux concentrator is investigated in detail in combination with a Halbach cylinder of infinite length. A general analytical solution to the field is determined and the magnetic figure of merit is determined for a Halbach cylinder with a flux concentrator. It is shown that an ideal flux concentrator will not change the figure of merit of a given magnet design, while the non-ideal will always lower it. The geometric parameters producing maximum figure of merit, i.e. the most efficient devices, are determined. The force and torque between two concentric Halbach cylinders with flux concentrators is determined and the maximum torque is found. Finally, the effect of non-ideal flux concentrators and the practical use of flux concentrators, as well as demagnetization issues, is discussed.

Bjørk, R; Bahl, C R H

2014-01-01T23:59:59.000Z

285

Concentrating solar power | Open Energy Information  

Open Energy Info (EERE)

Concentrating solar power Concentrating solar power (Redirected from - Concentrating Solar Power) Jump to: navigation, search Concentrating Solar Power Basics (The following text is derived from NREL's concentrating solar power information page.)[1] Concentrating solar power (CSP) offers a utility-scale, firm, dispatchable renewable energy option that can help meet our nation's demand for electricity. CSP plants produce power by first using mirrors to focus sunlight to heat a working fluid. Ultimately, this high-temperature fluid is used to spin a turbine or power an engine that drives a generator. And the final product is electricity. Smaller CSP systems can be located directly where the power is needed. Larger, utility-scale CSP applications provide hundreds of megawatts of electricity for the power grid. Both linear concentrator and power tower

286

Levelized Electricity Costs  

Science Journals Connector (OSTI)

The concept of levelized energy costs responds to the necessity of disclosing the ... in order to recover the total life cycle cost of energy production. This chapter charts the effectiveness of levelized cost fo...

Nuno Luis Madureira

2014-01-01T23:59:59.000Z

287

The Enterprise Level Roadmap  

E-Print Network [OSTI]

The Enterprise Level Roadmap is part of a Transition-To-Lean Guide, a three volume set of materials designed to help a user navigate through the Roadmap at increasingly deeper levels of detail.

Lean Advancement Initiative

2000-01-01T23:59:59.000Z

288

Cost Estimating, Analysis, and Standardization  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

To establish policy and responsibilities for: (a) developing and reviewing project cost estimates; (b) preparing independent cost estimates and analysis; (c) standardizing cost estimating procedures; and (d) improving overall cost estimating and analytical techniques, cost data bases, cost and economic escalation models, and cost estimating systems. Cancels DOE O 5700.2B, dated 8-5-1983; DOE O 5700.8, dated 5-27-1981; and HQ 1130.1A, dated 12-30-1981. Canceled by DOE O 5700.2D, dated 6-12-1992

1984-11-02T23:59:59.000Z

289

Assessment of variations in benzene concentration produced from vehicles and gas stations in Tehran using GIS  

Science Journals Connector (OSTI)

This study investigates the variations of benzene concentration levels in district 1, situated in the north part of Tehran, capital of Iran. Thirty-three stations in five categories, namely roadsides, busy ... ar...

F. Atabi; F. Moattar; N. Mansouri…

2013-03-01T23:59:59.000Z

290

Regional-Scale Estimation of Electric Power and Power Plant CO2 Emissions Using Defense Meteorological Satellite Program Operational Linescan System Nighttime Satellite Data  

Science Journals Connector (OSTI)

For estimation, the relationship between Defense Meteorological Satellite Program Operational Linescan System (DMSP/OLS) annual nighttime stable light product (NSL) for 2006 and statistical data on power generation, power consumption, and power plant CO2 emissions in 10 electric power supply regions of Japan was investigated. ... There are similar linear correlations of electricity consumption for lighting and total electricity consumption at the regional (e.g., state and province) level, but possibly not for CO2 emissions because of regional concentrations of electricity from renewable energy and nuclear power plants, which produce low CO2 emissions. ...

Husi Letu; Takashi Y. Nakajima; Fumihiko Nishio

2014-04-24T23:59:59.000Z

291

Neutron Reflection Method for the Fast Estimation of Neutron Removal Cross Section in Hydrogenous Materials  

Science Journals Connector (OSTI)

Neutron reflection method was used for the fast estimation of the neutron removal cross section in hydrogenous materials of ... to hydrogenous materials with a low concentration of neutron absorbing elements.

L. Desdin; C. Ceballos

2000-03-01T23:59:59.000Z

292

CONDITIONAL EXTREMES FROM HEAVY-TAILED DISTRIBUTIONS: AN APPLICATION TO THE ESTIMATION  

E-Print Network [OSTI]

CONDITIONAL EXTREMES FROM HEAVY-TAILED DISTRIBUTIONS: AN APPLICATION TO THE ESTIMATION OF EXTREME author, Stephane.Girard@inrialpes.fr Abstract - This paper is dedicated to the estimation of extreme on a simulation study. An application to the estimation of pointwise return levels of extreme rainfalls in the C

Paris-Sud XI, Université de

293

Liquid level detector  

DOE Patents [OSTI]

A liquid level detector for low pressure boilers. A boiler tank, from which apor, such as steam, normally exits via a main vent, is provided with a vertical side tube connected to the tank at the desired low liquid level. When the liquid level falls to the level of the side tube vapor escapes therethrough causing heating of a temperature sensitive device located in the side tube, which, for example, may activate a liquid supply means for adding liquid to the boiler tank. High liquid level in the boiler tank blocks entry of vapor into the side tube, allowing the temperature sensitive device to cool, for example, to ambient temperature.

Grasso, Albert P. (Vernon, CT)

1986-01-01T23:59:59.000Z

294

Liquid level detector  

DOE Patents [OSTI]

A liquid level detector for low pressure boilers. A boiler tank, from which vapor, such as steam, normally exits via a main vent, is provided with a vertical side tube connected to the tank at the desired low liquid level. When the liquid level falls to the level of the side tube vapor escapes therethrough causing heating of a temperature sensitive device located in the side tube, which, for example, may activate a liquid supply means for adding liquid to the boiler tank. High liquid level in the boiler tank blocks entry of vapor into the side tube, allowing the temperature sensitive device to cool, for example, to ambient temperature.

Grasso, A.P.

1984-02-21T23:59:59.000Z

295

Cost Function Estimates  

Science Journals Connector (OSTI)

Abstract The cost function describes the cost-minimizing combinations of inputs required for production of different levels of output. Empirical cost function studies take both short-run and long-run approaches and can be structurally consistent with microeconomic theory versus more behavioral or real-world data oriented. Studies of health care providers face numerous challenges including the multiproduct nature of the firm, difficulty in controlling for quality of service, and frequent failure of the profit-maximization assumption. Cost function applications in health care are numerous and include such topics as optimal firm size, performance inefficiency measures, and comparisons of production costs with third-party payments.

K. Carey

2014-01-01T23:59:59.000Z

296

Use of passive sampling devices to determine soil contaminant concentrations  

SciTech Connect (OSTI)

The effective remediation of contaminated sites requires accurate identification of chemical distributions. A rapid sampling method using passive sampling devices (PSDs) can provide a thorough site assessment. We have been pursuing their application in terrestrial systems and have found that they increase the ease and speed of analysis, decrease solvent usage and overall cost, and minimize the transport of contaminated soils. Time and cost savings allow a higher sampling frequency than is generally the case using traditional methods. PSDs have been used in the field in soils of varying physical properties and have been successful in estimating soil concentrations ranging from 1 {mu}g/kg (parts per billion) to greater than 200 mg/kg (parts per million). They were also helpful in identifying hot spots within the sites. Passive sampling devices show extreme promise as an analytical tool to rapidly characterize contaminant distributions in soil. There are substantial time and cost savings in laboratory personnel and supplies. By selectively excluding common interferences that require sample cleanup, PSDs can be retrieved from the field and processed rapidly (one technician can process approximately 90 PSDs in an 8-h work day). The results of our studies indicate that PSDs can be used to accurately estimate soil contaminant concentrations and provide lower detection limits. Further, time and cost savings will allow a more thorough and detailed characterization of contaminant distributions. 13 refs., 4 figs., 2 tabs.

Johnson, K.A. [Clemson Univ., Pendleton, SC (United States); [Washington State Univ., Richland, WA (United States); Hooper, M.J. [Clemson Univ., Pendleton, SC (United States); Weisskopf, C.P. [Washington State Univ., Richland, WA (United States)

1996-12-31T23:59:59.000Z

297

A Method to Estimate the Chronic Health Impact of Air Pollutants in U.S.  

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

A Method to Estimate the Chronic Health Impact of Air Pollutants in U.S. A Method to Estimate the Chronic Health Impact of Air Pollutants in U.S. Residences Title A Method to Estimate the Chronic Health Impact of Air Pollutants in U.S. Residences Publication Type Journal Article Refereed Designation Refereed LBNL Report Number LBNL-5267E Year of Publication 2011 Authors Logue, Jennifer M., Phillip N. Price, Max H. Sherman, and Brett C. Singer Journal Environmental Health Perspectives Volume 120 Start Page 216 Pagination 216-222 Date Published 11/2011 Keywords air toxics, criteria pollutants, DALYs, exposure, impact assessment, indoor air pollutants, indoor air quality Abstract Background: Indoor air pollutants (IAPs) cause multiple health impacts. Prioritizing mitigation options that differentially impact individual pollutants and comparing IAPs to other environmental health hazards requires a common metric of harm. Objectives: The objective was to demonstrate a methodology to quantify and compare health impacts from IAPs. The methodology is needed to assess population health impacts of large-scale initiatives - including energy efficiency upgrades and ventilation standards - that affect indoor air quality (IAQ). Methods: Available disease incidence and disease impact models for specific pollutant-disease combinations were synthesized with data on measured concentrations to estimate the chronic heath impact, in Disability Adjusted Life Years (DALYs), due to inhalation of a subset of IAPs in U.S. residences. Model results were compared to independent estimates of DALYs lost due to disease. Results: PM2.5, acrolein, and formaldehyde accounted for the vast majority of DALY losses caused by IAPs considered in this analysis, with impacts on par or greater than estimates for secondhand tobacco smoke and radon. Confidence intervals of DALYs lost derived from epidemiology-based response functions are tighter than those derived from toxicology-based, inter-species extrapolations. Statistics on disease incidence in the US indicate that the upper-bound confidence interval for aggregate IAP harm is implausibly high. Conclusions: The demonstrated approach may be used to assess regional and national initiatives that impact IAQ at the population level. Cumulative health impacts from inhalation in U.S. residences of the IAPs assessed in this study are estimated at 400-1100 DALYs annually per 100,000 people.

298

Concentrating Solar Power Basics | Department of Energy  

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

Basics Basics Concentrating Solar Power Basics August 20, 2013 - 4:38pm Addthis Text Version This solar concentrator has a fixed-focus faceted dish with a concentration of about 250 suns. This system can be used for large fields connected to the utility grid, hydrogen generation, or water pumping. Credit: Science Applications International Corporation / PIX 13464 Concentrating solar power (CSP) technologies use mirrors to reflect and concentrate sunlight onto receivers that collect solar energy and convert it to heat. This thermal energy can then be used to produce electricity via a steam turbine or heat engine that drives a generator. Concentrating solar power offers a utility-scale, firm, dispatchable renewable energy option that can help meet our nation's demand for

299

Power Consumption Estimation of a C Program for Data-Intensive Applications  

E-Print Network [OSTI]

Power Consumption Estimation of a C Program for Data-Intensive Applications Eric Senn, Nathalie://lester.univ-ubs.fr:8080/ Abstract. A method for estimating the power consumption of an al- gorithm is presented.2 % at the C-level, and 1.8 % at the assembly level. 1 Introduction Power consumption is currently a critical

Paris-Sud XI, Université de

300

Job: ID Job Title Employer End Date Majors/Concentrations Class Level 56903 Engineer/Est  

E-Print Network [OSTI]

), Computer Science (High Performance Computing and Simulations), Computer Science (Human Language Technology Networks), Computer Science (Computer Security), Computer Science (High Performance Computing (High Performance Computing and Simulations), Computer Science (Human Language Technology), Computer

Wang, Hai

Note: This page contains sample records for the topic "level concentration estimated" 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

Reference Concentrations of Antidepressants. A Compilation of Postmortem and Therapeutic Levels  

Science Journals Connector (OSTI)

......themfromperformingcomplextasks,such as arranging a ligature, driving a car, or firing a gun at the head). The aims of this present study...Eichelbaum, N. Spannbrucker, B. Steincke, and H.J.Dengler. Defective N-oxidation of sparteine in man: a new pharmacoge- netic......

M. Reis; T. Aamo; J. Ahlner; H. Druid

2007-06-01T23:59:59.000Z

302

Monitoring Viable Fungal and Bacterial Bioaerosol Concentrations to Identify Acceptable Levels for Common Indoor Environments  

E-Print Network [OSTI]

0 CFU/m3 of non-toxigenic or non-pathogenic organisms should be typical for normal, non-immunocompromised environments. With the exception of Cladosporium, no organism should individually contribute more than 150 CFUfm3. Furthermore, it is concluded...

Robertson, L. D.

1998-01-01T23:59:59.000Z

303

Sandia National Laboratories: Concentrating Solar Power: Efficiently...  

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

Equilibrium Mechanisms for Engineering New Thermochemical Storage Sandia Researchers Win CSP:ELEMENTS Funding Award On June 4, 2014, in Advanced Materials Laboratory, Concentrating...

304

Concentrating Solar Power | Department of Energy  

Office of Environmental Management (EM)

technologies use mirrors to reflect and concentrate sunlight onto receivers that collect solar energy and convert it to heat. Thermal energy can then be used to produce...

305

Sandia National Laboratories: Concentrating Solar Power  

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

InstituteSandia Photovoltaic Systems Symposium On April 15, 2014, in Concentrating Solar Power, Distribution Grid Integration, Energy, Facilities, Grid Integration, News,...

306

Sandia National Laboratories: Concentrating Solar Power  

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

Sandia and EMCORE: Solar Photovoltaics, Fiber Optics, MODE, and Energy Efficiency On March 29, 2013, in Concentrating Solar Power, Energy, Partnership, Photovoltaic, Renewable...

307

TOPCAT Solar Cell Alignment & Energy Concentration Technology...  

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

Thermal Solar Thermal Find More Like This Return to Search TOPCAT Solar Cell Alignment & Energy Concentration Technology Sandia National Laboratories Contact SNL About This...

308

Sandia National Laboratories: Concentrating Solar Power  

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

Center in Vermont Achieves Milestone Installation On September 23, 2014, in Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, News &...

309

Concentrating Solar Power Resources and Technologies  

Broader source: Energy.gov [DOE]

This page provides a brief overview of concentrating solar power (CSP) technologies supplemented by specific information to apply CSP within the Federal sector.

310

Concentrating Solar Power: Energy from Mirrors  

SciTech Connect (OSTI)

This fact sheet explains how concentrating solar power technology works and the three types of systems in development today: trough, dish, and central receiver.

Poole, L.

2001-02-27T23:59:59.000Z

311

Concentrating Solar Power (Revised) (Fact Sheet)  

SciTech Connect (OSTI)

The fact sheet summarizes the goals and activities of the DOE Solar Energy Technologies Program efforts within its concentrating solar power subprogram.

Not Available

2010-11-01T23:59:59.000Z

312

Technological value of coal concentrates for coking  

Science Journals Connector (OSTI)

Options are outlined for calculating the technological value of coal and coal concentrates in the context of contractual obligations and the quality of the coke produced.

E. N. Stepanov; G. V. Larin; A. E. Stepanova; I. V. Semiokhina

2010-02-01T23:59:59.000Z

313

Sandia National Laboratories: Concentrating Solar Power  

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

Solar Power Technical Management Position On July 12, 2012, in Concentrating Solar Power, Energy, Facilities, Job Listing, National Solar Thermal Test Facility, News,...

314

Sandia National Laboratories: Concentrating Solar Power  

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

Salt Initial Flow Testing is a Tremendous Success On November 2, 2012, in Concentrating Solar Power, News, Renewable Energy, Solar The Molten Salt Test Loop (MSTL ) system at...

315

Sandia National Laboratories: Concentrating Solar Power  

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

Sandia Workers Received Entrepreneurial Spirit Awards On April 3, 2013, in Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, News &...

316

Sandia National Laboratories: Concentrating Solar Power  

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

Safety and Health Go Green Initiative On December 19, 2012, in Concentrating Solar Power, Energy, Events, Facilities, National Solar Thermal Test Facility, News, News...

317

Sandia National Laboratories: Concentrating Solar Power  

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

in Concentrating Solar Power, Customers & Partners, Energy, News, Partnership, Renewable Energy, Solar Areva Solar is collaborating with Sandia National Laboratories on a new...

318

Project Profile: Concentrated Solar Thermoelectric Power | Department...  

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

Solar Thermoelectric Power Project Profile: Concentrated Solar Thermoelectric Power MIT logo The Rohsenow-Kendall Heat Transfer Lab at Massachusetts Institute of...

319

A solar concentrating photovoltaic/thermal collector .  

E-Print Network [OSTI]

??This thesis discusses aspects of a novel solar concentrating photovoltaic / thermal (PV/T) collector that has been designed to produce both electricity and hot water.… (more)

Coventry, Joseph S

2008-01-01T23:59:59.000Z

320

Change in Contaminant Concentration in Fraser  

E-Print Network [OSTI]

during this period: dioxins, furans, polycyclic aromatic hydrocarbons (PAHs), chlorophenolics, resin to the peak in suspended sediment concentration during the freshet sampling period, iv) dioxins

Note: This page contains sample records for the topic "level concentration estimated" 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

Sandia National Laboratories: Concentrating Solar Power  

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

NASA's Solar Tower Test of the 1-Meter Aeroshell On August 23, 2012, in Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, Partnership,...

322

Sandia National Laboratories: Concentrating Solar Power Systems  

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

Power Systems Air Force Research Laboratory Testing On November 2, 2012, in Concentrating Solar Power, Facilities, National Solar Thermal Test Facility, News, News & Events,...

323

Sandia National Laboratories: Concentrating Solar Power  

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

and Transportation R&D Activities View all EC Publications Related Topics Concentrating Solar Power CSP EFRC Energy Energy Efficiency Energy Security Infrastructure...

324

Microtracking and Self-Adaptive Solar Concentration  

Broader source: Energy.gov [DOE]

This presentation was delivered at the SunShot Concentrating Solar Power (CSP) Program Review 2013, held April 23–25, 2013 near Phoenix, Arizona.

325

Correlation Between Geographically Dispersed Concentrating Solar Power and Demand in the United States  

SciTech Connect (OSTI)

Correlations between the electricity generated by concentrating solar thermal power (CSP) plants, as well as cross-correlations between CSP, wind power and electricity demand, have significant impacts on decisions for how much and where to build utility-scale CSP capacity, the optimal amount of thermal storage in the CSP plants, reserve capacity needed to back-up the system, as well as the expected levels of curtailed renewable power. Accurately estimating these correlations is vital to performing detailed analyses of high renewable penetration scenarios. This study quantifies the degree of correlation between geographically dispersed CSP, as well as the correlation between CSP and wind power, and CSP and electricity demand in 356 discrete regions in the contiguous US. Correlations are calculated using hourly data on an annual basis. Maps of the correlations will be presented to illustrate the degree of correlation between solar power and the demand it is serving, as well as the synergies between the negatively-correlated wind power and solar power serving the same region.

Mowers, M.; Helm, C.; Blair, N.; Short, W.

2010-01-01T23:59:59.000Z

326

Tiltmeter leveling mechanism  

DOE Patents [OSTI]

A tiltmeter device having a pair of orthogonally disposed tilt sensors that are levelable within an inner housing containing the sensors. An outer housing can be rotated to level at least one of the sensor pair while the inner housing can be rotated to level the other sensor of the pair. The sensors are typically rotated up to about plus or minus 100 degrees. The device is effective for measuring tilts in a wide range of angles of inclination of wells and can be employed to level a platform containing a third sensor.

Hunter, Steven L. (Livermore, CA); Boro, Carl O. (Milpitas, CA); Farris, Alvis (late of Byron, CA)

2002-01-01T23:59:59.000Z

327

" Level: National Data;" " ...  

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

7 Number of Establishments with Capability to Switch Electricity to Alternative Energy Sources, 2010; " " Level: National Data;" " Row: NAICS Codes;" " Column: Energy Sources;" "...

328

" Level: National Data;" " ...  

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

3 Number of Establishments with Capability to Switch Natural Gas to Alternative Energy Sources, 2002;" " Level: National Data;" " Row: NAICS Codes;" " Column: Energy Sources;" "...

329

" Level: National Data;" " ...  

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

3 Number of Establishments with Capability to Switch Natural Gas to Alternative Energy Sources, 2010;" " Level: National Data;" " Row: NAICS Codes;" " Column: Energy Sources;" "...

330

" Level: National Data;" " ...  

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

7 Number of Establishments with Capability to Switch Electricity to Alternative Energy Sources, 2002; " " Level: National Data;" " Row: NAICS Codes;" " Column: Energy Sources;" "...

331

" Level: National Data;" " ...  

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

3 Number of Establishments with Capability to Switch LPG to Alternative Energy Sources, 2010;" " Level: National Data;" " Row: NAICS Codes;" " Column: Energy Sources;" " Unit:...

332

" Level: National Data;" " ...  

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

0.5 Number of Establishments with Capability to Switch Residual Fuel Oil to Alternative Energy Sources, 2010;" " Level: National Data;" " Row: NAICS Codes;" " Column: Energy...

333

" Level: National Data;" " ...  

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

1 Number of Establishments with Capability to Switch Coal to Alternative Energy Sources, 2010;" " Level: National Data;" " Row: NAICS Codes;" " Column: Energy Sources;" " Unit:...

334

" Level: National Data;" " ...  

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

9 Number of Establishments with Capability to Switch Distillate Fuel Oil to Alternative Energy Sources, 2010;" " Level: National Data;" " Row: NAICS Codes;" " Column: Energy...

335

ARM Evaluation Product : Droplet Number Concentration Value-Added Product  

SciTech Connect (OSTI)

Cloud droplet number concentration is an important factor in understanding aerosol-cloud interactions. As aerosol concentration increases, it is expected that droplet number concentration, Nd, will increase and droplet size decrease, for a given liquid water path (Twomey 1977), which will greatly affect cloud albedo as smaller droplets reflect more shortwave radiation. However, the magnitude and variability of these processes under different environmental conditions is still uncertain. McComiskey et al. (2009) have implemented a method, based on Boers and Mitchell (1994), for calculating Nd from ground-based remote sensing measurements of optical depth and liquid water path. They show that the magnitude of the aerosol-cloud interactions (ACI) varies with a range of factors, including the relative value of the cloud liquid water path (LWP), the aerosol size distribution, and the cloud updraft velocity. Estimates of Nd under a range of cloud types and conditions and at a variety of sites are needed to further quantify the impacts of aerosol cloud interactions.

Riihimaki, Laura

2014-05-15T23:59:59.000Z

336

Worm virulence estimation for the containment of local worm outbreak  

Science Journals Connector (OSTI)

A worm-infected host scanning globally may not cause any new infection in its underlying local network before it is detected and quarantined by a worm detector. To defend this type of scanning hosts, a number of worm scanner detection methods such as failed scan detection, honeypot, and dark port detection are proposed. However, for a stealthier worm limiting its scan inside an enterprise network, the chance of a successful local outbreak increases substantively due to the more limited scan space. To protect a local or enterprise network against a local outbreak, we need a coordinated and cost-conscious defense that entails an accurate estimate of worm virulence level. Unfortunately, many existing defense methods suffer from estimating the worm virulence level in a local or enterprise network. In this regard, we propose a maximum likelihood estimator to progressively estimate the size of susceptible host population in the local or enterprise network. From analysis and experimental evaluation, it is shown that the proposed estimator can report a reliable estimate of the size of susceptible population only after a few infections, sometimes only four, much faster than a similar method based on a Kalman filter. Also, based on maximum likelihood estimate, an appropriate containment threshold can be set to effectively stop the worm propagation while causing minimum service disruption to normal network users.

Y.-H. Choi; L. Li; P. Liu; G. Kesidis

2010-01-01T23:59:59.000Z

337

Shoreface Morphodynamics, Back Beach Variability, and Implications of Future Sea-Level Rise for California's Sandy Shorelines  

E-Print Network [OSTI]

change scenarios and sea-level rise estimates for thePilkey, O.H. (2004) Sea-level rise and shoreline retreat:and multi-decadal sea-level rise, Nature 453:1090-1093.

Harden, Erika Lynne

2012-01-01T23:59:59.000Z

338

Concentrations of Heavy Metals in Selected Tissues of Blue  

E-Print Network [OSTI]

Abstract: Persian Gulf supports diverse ecosystems and biota in need of remediation and protection and metal data from this region is needed. The levels of heavy metals (Fe, Hg, Ni and Pb) in tissues (hepatopancreas, muscle and exoskeleton) of blue swimming crab, Portunus pelagicus and sediments in the Persian Gulf coasts, south Iran were investigated. Heavy metals analysis was performed by Atomic Absorption Spectrophotometer. The concentration of heavy metals in sediments at all sampling stations occurs in descending order of Fe> Ni> Hg> Pb during both seasons. The distribution pattern of heavy metals in the tissues of crab and sediments was as follows: sediment> hepatopancreasn> muscle> exoskeleton. Maximum concentration of the total heavy metals in sediments and all tissues of P. pelagicus observes in Bahrekan station (Pheavy metals in the tissues of the crab P. pelagicus. In present study recorded that there was negligible differences in heavy metals levels between different seasons. Differences in heavy metals concentrations among the species is likely to have resulted from metal bioavailability, hydrodynamics of the environment, changes in tissue composition, stations of collection and sources of pollution within Persian Gulf.

Mehdi Hosseini; Afshin Abdi Bastami; Javad Kazemzadeh Khoei; Maryam Esmailian; Elmira Janmohammadi Songhori; Mina Najafzadeh

339

Environmental Health Perspectives volume 119 | number 8 | August 2011 1123 Predicting air pollution concentrations at reso-  

E-Print Network [OSTI]

air pollution concentrations at reso- lutions capable of capturing local-scale pollut- ant gradients of approaches may be used to model air pollution over large areas, includ- ing interpolation of fixed use for producing local- scale pollution estimates. Interpolation of fixed-site air pollution

Martin, Randall

340

Solar refractive secondary concentrator technology overview  

Science Journals Connector (OSTI)

Refractive secondary concentrators coupled with advanced primary concentrators can efficiently convert solar energy to heat for a wide variety of space applications including power generation thermal propulsion and furnaces. These applications typically require very high temperatures (as high as 2000 K) and high concentration ratios (10 000 to 1). To enable concentration systems that meet these requirements the NASA Glenn Research Center is developing the refractive secondary concentrator which uses refraction and total internal reflection to concentrate and direct solar energy. Presented is an overview of the refractive secondary concentrator technology development effort including a description of benefits past accomplishments and future plans. Highlighted is a recent proof-of-concept test of a prototype sapphire refractive secondary concentrator performed in a solar vacuum environment that demonstrated throughput efficiency of 87%. It is anticipated that the application of an optical coating to the inlet surface of the refractive secondary to reduce the reflection losses at this surface can improve the throughput efficiency to 93%. Plans to conduct additional solar thermal vacuum tests to demonstrate high temperatures and high throughput power are also presented (up to 2000 K and 5 kW).

Wayne A. Wong

2001-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "level concentration estimated" 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

Concentration Distributions during Pulse Jet Mixing  

SciTech Connect (OSTI)

Obtaining real-time, in situ slurry concentration measurements during unsteady mixing can provide increased understanding into mixer performance. During recent tests an ultrasonic attenuation sensor was inserted into a mixing vessel to measure the slurry concentration during unsteady mixing in real time during pulse jet mixer operation. These pulse jet mixing tests to suspend noncohesive solids in Newtonian liquid were conducted at three geometric scales. To understand the solids suspension process and resulting solids distribution, the concentration of solids in the cloud was measured at various elevations and radial positions during the pulse jet mixer cycle. In the largest scale vessel, concentration profiles were measured at three radial locations: r = 0, 0.5 and 0.9 R where R is the vessel radius. These radial concentration data are being analyzed to provide a model for predicting concentration as a function of elevation. This paper describes pulse jet mixer operation, provides a description of the concentration probe, and presents transient concentration data obtained at three radial positions: in the vessel center (O R), midway between the center and the wall (0.5 R) and near the vessel wall (0.9 R) through out the pulse to provide insight into pulse jet mixer performance.

Bamberger, Judith A.; Meyer, Perry A.

2010-08-05T23:59:59.000Z

342

MANAGEMENT INFORMATION SYSTEMS (MIS) CONCENTRATION FOR UNDERGRADUATES  

E-Print Network [OSTI]

MANAGEMENT INFORMATION SYSTEMS (MIS) CONCENTRATION FOR UNDERGRADUATES The management information systems concentration, like a major, focuses on the use of information technology for value creation creation. Link to Rensselaer 2012-2013 Catalog Required Courses MGMT 4240 Systems Analysis & Design MGMT

Salama, Khaled

343

Requirements for a Concentration in Energy Technologies  

E-Print Network [OSTI]

Technologies ­ 4 cr ENG EC 417 ­ Electric Energy Systems: Adapting to Renewable Resources ­ 4 cr Additional* - Methods of Environmental Policy ­ 4 cr ENG ME 533 ­ Energy Conversion ­ 4 cr ENG EC/ME/SE 543Requirements for a Concentration in Energy Technologies The concentration in Energy Technologies

344

Highly concentrated foam formulation for blast mitigation  

DOE Patents [OSTI]

A highly concentrated foam formulation for blast suppression and dispersion mitigation for use in responding to a terrorism incident involving a radiological dispersion device. The foam formulation is more concentrated and more stable than the current blast suppression foam (AFC-380), which reduces the logistics burden on the user.

Tucker, Mark D. (Albuquerque, NM); Gao, Huizhen (Albuquerque, NM)

2010-12-14T23:59:59.000Z

345

Definition: Concentrating solar power | Open Energy Information  

Open Energy Info (EERE)

Dictionary.png Dictionary.png Concentrating solar power Technologies that use mirrors to reflect and concentrate sunlight onto receivers that collect solar energy and convert it to heat. This thermal energy can then be used to produce electricity via a steam turbine or heat engine that drives a generator.[1][2] View on Wikipedia Wikipedia Definition . ]] File:El-v-01 ubt. jpeg Sustainable energy Renewable energy Anaerobic digestion Hydroelectricity · Geothermal Microgeneration · Solar Tidal · Wave · Wind Energy conservation Cogeneration · Energy efficiency Geothermal heat pump Green building · Passive Solar Sustainable transport Plug-in hybrids · Electric vehicles File:Terra- edge blur. png Environment Portal v · d · e Concentrated solar power (also called concentrating solar power, concentrated solar thermal, and CSP) systems use

346

Concentration of HCB in Callinectes sapidus from the Calcasieu Estuary, Louisiana  

SciTech Connect (OSTI)

Blue crabs (Callinectes sapidus) were collected from several areas in the estuary, and edible tissues were analyzed for the organic compound hexachlorobenzene (HCB). Hexachlorobenzene was established as an indicator of industrial chemical contamination by the Louisiana Department of Health and Hospitals (LDHH). This organization used the FDA interim guideline concentration of 0.5 ppm HCB in fatty tissue of beef to develop an emergency action level of 0.060 ppm for edible seafood. In this study, an average HCB tissue concentration of 40 ppb was found in the Calcasieu Estuary. There was no significant difference in concentrations between sampling locations. However, the range in HCB concentrations varied among samples, with some analyses yielding tissue concentrations greater than the emergency action level of 60 ppb.

Murray, H.E.; Murphy, C.N.; Gaston, G.R. (McNeese State Univ., Lake Charles, LA (United States))

1992-01-01T23:59:59.000Z

347

Assessment of microbial processes on gas production at radioactive low-level waste disposal sites  

SciTech Connect (OSTI)

Factors controlling gaseous emanations from low level radioactive waste disposal sites are assessed. Importance of gaseous fluxes of methane, carbon dioxide, and possible hydrogen from the site, stems from the inclusion of tritium and/or carbon-14 into the elemental composition of these compounds. In that the primary source of these gases is the biodegradation of organic components of the waste material, primary emphasis of the study involved an examination of the biochemical pathways producing methane, carbon dioxide, and hydrogen, and the environmental parameters controlling the activity of the microbial community involved. Initial examination of the data indicates that the ecosystem is anaerobic. As the result of the complexity of the pathway leading to methane production, factors such as substrate availability, which limit the initial reaction in the sequence, greatly affect the overall rate of methane evolution. Biochemical transformations of methane, hydrogen and carbon dioxide as they pass through the soil profile above the trench are discussed. Results of gas studies performed at three commercial low level radioactive waste disposal sites are reviewed. Methods used to obtain trench and soil gas samples are discussed. Estimates of rates of gas production and amounts released into the atmosphere (by the GASFLOW model) are evaluated. Tritium and carbon-14 gaseous compounds have been measured in these studies; tritiated methane is the major radionuclide species in all disposal trenches studied. The concentration of methane in a typical trench increases with the age of the trench, whereas the concentration of carbon dioxide is similar in all trenches.

Weiss, A.J.; Tate, R.L. III; Colombo, P.

1982-05-01T23:59:59.000Z

348

Precision liquid level sensor  

DOE Patents [OSTI]

A precision liquid level sensor utilizes a balanced R. F. bridge, each arm including an air dielectric line. Changes in liquid level along one air dielectric line imbalance the bridge and create a voltage which is directly measurable across the bridge.

Field, Michael E. (Albuquerque, NM); Sullivan, William H. (Albuquerque, NM)

1985-01-01T23:59:59.000Z

349

A study of radon-222 concentrations in North Carolina groundwater  

SciTech Connect (OSTI)

The groundwater of 400 North Carolina homes was sampled to ascertain the distribution and extent of {sup 222}Rn in North Carolina groundwater. Arithmetic mean (AM) and geometric mean (GM) concentrations of 1,816 pCi L{sup {minus}1} and 656 pCi L{sup {minus}1} were found for the state. These results indicate that two-thirds of 114{degree}C. homes served by groundwater exceed the EPA proposed 300 pCi L{sup {minus}1} maximum contaminant level (MCL). Only 2% of NC homes exceeded 10,000 pCi L-1. The Eastern region had the lowest radon concentrations by far, with a GM of 2-)0 pCi L{sup {minus}1}. The Central region and Western region had GM`s of 794 pCi L{sup {minus}1} and 1,032 pCi L{sup {minus}1} respectively. The groundwater data approached a log normal distribution. No consistent trends were noted in the relationship between indoor radon concentrations and groundwater radon concentrations. A correlation coefficient of 0.00921 revealed a very weak linear relationship.

Evans, J.P.

1992-12-31T23:59:59.000Z

350

EFFECTS OF WATER SPRAYS AND SCRUBBER EXHAUST ON FACE METHANE CONCENTRATIONS  

E-Print Network [OSTI]

methane levels. KEYWORDS Ventilation, water sprays, methane, coal mining, dust scrubber INTRODUCTIONChapter 65 EFFECTS OF WATER SPRAYS AND SCRUBBER EXHAUST ON FACE METHANE CONCENTRATIONS Ch.D. Taylor-mounted scrubber and water sprays can reduced methane levels at the face. The current research was conducted

Saylor, John R.

351

5, 30473104, 2005 Estimates of  

E-Print Network [OSTI]

parametrisations, one relating convective preciptation (CP scheme) to lightning flash15 distributionsACPD 5, 3047­3104, 2005 Estimates of lightning NOx production K. F. Boersma et al. Title Page Discussions Estimates of lightning NOx production from GOME satellite observations K. F. Boersma, H. J. Eskes

Paris-Sud XI, Université de

352

Energy Expenditure Estimation DEMO Application  

E-Print Network [OSTI]

of accelerometry. An average smart phone contains an inertial sensor and today we hardly leave our home without itEnergy Expenditure Estimation DEMO Application Bozidara Cvetkovi´c1,2 , Simon Kozina1,2 , Bostjan://www.mps.si Abstract. The paper presents two prototypes for the estimation of hu- man energy expenditure during normal

LuÂ?trek, Mitja

353

Advanced Heat Transfer Fluids for Concentrated Solar Power (CSP)  

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

Science Science Computing, Environment & Life Sciences Energy Engineering & Systems Analysis Photon Sciences Physical Sciences & Engineering Energy Frontier Research Centers Science Highlights Postdoctoral Researchers Advanced Heat Transfer Fluids for Concentrated Solar Power (CSP) Applications November 1, 2011 Tweet EmailPrint The current levelized cost of energy (LCOE) from concentrated solar power (CSP) is ~ $0.11/kWh. The U.S. Department of Energy has set goals to reduce this cost to ~$0.07/kWh with 6 hours of storage by 2015 and to ~$0.05/kWh with 16 hours of storage by 2020. To help meet these goals, scientists at Argonne National Laboratory are working to improve the overall CSP plant efficiency by enhancing the thermophysical properties of heat transfer

354

Kinetic dielectric decrement revisited: phenomenology of finite ion concentrations  

E-Print Network [OSTI]

With the help of a recently developed non-equilibrium approach, we investigate the ionic strength dependence of the Hubbard--Onsager dielectric decrement. We compute the depolarization of water molecules caused by the motion of ions in sodium chloride solutions from the dilute regime (0.035 M) up close to the saturation concentration (4.24 M), and find that the kinetic decrement displays a strong nonmonotonic behavior, in contrast to the prediction of available models. We introduce a phenomenological modification of the Hubbard--Onsager continuum theory, that takes into account the screening due to the ionic cloud at mean field level, and, is able to describe the kinetic decrement at high concentrations including the presence of a pronounced minimum.

Marcello Sega; Sofia Kantorovich; Axel Arnold

2014-07-16T23:59:59.000Z

355

E-Print Network 3.0 - atmospheric pollutants levels Sample Search...  

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

Dispersion a. Maximum ground-level ambient concentration b... Pollution Prevention, Control and Sustainability Instructor: V.M. Fthenakis, Tel: (212) 854-8885, Email: vmf......

356

Impact of Natural Gas Appliances on Pollutant Levels in California Homes  

E-Print Network [OSTI]

concentrations inside homes. ” Atmospheric Environment 40(formaldehyde epxosure in homes. ” Allergy 54: 330- Hampson,Levels in California Homes B6>46C$! BD? :7! Mullen, Li,

Mullen, Nasim A.

2014-01-01T23:59:59.000Z

357

Polycyclic aromatic hydrocarbon (PAH) in four fish species from different trophic levels in the Persian Gulf  

Science Journals Connector (OSTI)

Concentration of ten polycyclic aromatic hydrocarbon (PAH) compounds were determined in liver of four fish species from different trophic levels (Aurigequula fasciata, omnivore; Alepes djedaba, carnivore; Liza ab...

Shirin Rahmanpour; Nasrin Farzaneh Ghorghani…

2014-11-01T23:59:59.000Z

358

Low Level Waste Disposition - Quantity and Inventory | Department of  

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

Low Level Waste Disposition - Quantity and Inventory Low Level Waste Disposition - Quantity and Inventory Low Level Waste Disposition - Quantity and Inventory This study has been prepared by the Used Fuel Disposition (UFD) campaign of the Fuel Cycle Research and Development (FCR&D) program. The purpose of this study is to provide an estimate of the volume of low level waste resulting from a variety of commercial fuel cycle alternatives in order to support subsequent system-level evaluations of disposal system performance. This study provides an estimate of Class A/B/C low level waste (LLW), greater than Class C (GTCC) waste, mixed LLW and mixed GTCC waste generated from the following initial set of fuel cycles and recycling processes: 1. Operations at a geologic repository based upon a once through light

359

Low Level Waste Disposition - Quantity and Inventory | Department of  

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

Low Level Waste Disposition - Quantity and Inventory Low Level Waste Disposition - Quantity and Inventory Low Level Waste Disposition - Quantity and Inventory This study has been prepared by the Used Fuel Disposition (UFD) campaign of the Fuel Cycle Research and Development (FCR&D) program. The purpose of this study is to provide an estimate of the volume of low level waste resulting from a variety of commercial fuel cycle alternatives in order to support subsequent system-level evaluations of disposal system performance. This study provides an estimate of Class A/B/C low level waste (LLW), greater than Class C (GTCC) waste, mixed LLW and mixed GTCC waste generated from the following initial set of fuel cycles and recycling processes: 1. Operations at a geologic repository based upon a once through light

360

NREL: Concentrating Solar Power Research - Publications  

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

Publications Publications NREL develops publications, including technical reports and papers, about its R&D activities in concentrating solar power, as well as related information. Below you'll find a list of selected NREL publications concerning these activities. Also see TroughNet's publications on parabolic trough technology, and market and economic assessment. For other NREL concentrating solar power publications, you can search NREL's Publications Database. Selected Publications These publications are available as Adobe Acrobat PDFs. Utility-Scale Power Tower Solar Systems: Performance Acceptance Test Guidelines NREL Subcontract Report Author: David Kearney - Kearney & Associates Publication Date: March 2013 Simulating the Value of Concentrating Solar Power with Thermal Energy

Note: This page contains sample records for the topic "level concentration estimated" 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

Si concentrator solar cell development. [Final report  

SciTech Connect (OSTI)

This is the final report of a program to develop a commercial, high-efficiency, low-cost concentrator solar cell compatible with Spectrolab`s existing manufacturing infrastructure for space solar cells. The period covered is between 1991 and 1993. The program was funded through Sandia National Laboratories through the DOE concentrator initiative and, was also cost shared by Spectrolab. As a result of this program, Spectrolab implemented solar cells achieving an efficiency of over 19% at 200 to 300X concentration. The cells are compatible with DOE guidelines for a cell price necessary to achieve a cost of electricity of 12 cents a kilowatthour.

Krut, D.D. [Spectrolab, Inc., Sylmar, CA (United States)

1994-10-01T23:59:59.000Z

362

Accurate, reproducible, and quantitative measurement of protein analyte concentration(s) in tissue slides  

Science Journals Connector (OSTI)

...analyte concentration(s) in tissue slides David Rimm Robert Camp Allison Welsh Christopher Moeder Jennifer Giltnane Sharon Pozner-Moulis...Immunohistochemistry (IHC) has been used as a tool for over a quarter of a century to assess protein concentration within the context of the spatial...

David Rimm; Robert Camp; Allison Welsh; Christopher Moeder; Jennifer Giltnane; Sharon Pozner-Moulis; Marisa Dolled-Filhart; Harriet Kluger; Gina Chung; Mark Gustavson; and Jason Christiansen

2008-10-01T23:59:59.000Z

363

Modelling the settling of suspended sediments for concentrations close to the gelling concentration  

E-Print Network [OSTI]

Modelling the settling of suspended sediments for concentrations close to the gelling concentration with the sedimentation of highly concentrated sediment suspensions (co- hesive as well as non-cohesive) and the beginning-cohesive sediments. In addition it plays a role in determining whether one or two interfaces develop during

Paris-Sud XI, Université de

364

Correctness of Source-Level Safety Policies Ewen Denney  

E-Print Network [OSTI]

safety policy. Recent work has thus concentrated on ways to guarantee the correctness of safety policies safety policies [13]. However, all these approaches work on the object code level, and cannot di- rectlyCorrectness of Source-Level Safety Policies Ewen Denney and Bernd Fischer QSS / RIACS NASA Ames

365

Associations of prenatal maternal blood mercury concentrations with early and mid-childhood blood pressure: A prospective study  

Science Journals Connector (OSTI)

AbstractBackground Childhood blood pressure (BP) is an important determinant of adult cardiovascular disease. Prenatal exposure to methylmercury through maternal fish consumption has been reported to increase the BP of children years later. Methods Mother–child pairs were enrolled from Project Viva, a prospective cohort study in Massachusetts. From second trimester maternal blood samples, we measured erythrocyte mercury concentration. Systolic BP in children, measured up to 5 times per visit in early and mid-childhood (median ages 3.2 and 7.7 years), was the primary outcome. We used mixed-effect regression models to account for variation in the number of BP measurements and to average effects over both time points. Results Among 1103 mother–child pairs, mean (SD) second trimester total erythrocyte mercury concentration was 4.0 (3.9) ng/g among mothers whose children were assessed in early childhood and 4.0 (4.0) ng/g for children assessed in mid-childhood. Mean (SD) offspring systolic BP was 92.1 (10.4) mm Hg in early childhood and 94.3 (8.4) mm Hg in mid-childhood. After adjusting for mother and infant characteristics, mean second trimester blood mercury concentration was not associated with child systolic BP (regression coefficient, 0.1 mm Hg; 95% CI, ?1.3 to 1.5 for quartile 4 vs. quartile 1) at either time period. Further adjusting for second trimester maternal fish consumption, as well as docosahexaenoic acid and eicosapentaenoic acid consumption, did not substantially change the estimates. Conclusions The results of this study demonstrate an absence of association between childhood blood pressure and low-level mercury exposure typical of the general US population.

Brian T. Kalish; Sheryl L. Rifas-Shiman; Robert O. Wright; Chitra J. Amarasiriwardena; Innocent Jayawardene; Matthew W. Gillman; Steven E. Lipshultz; Emily Oken

2014-01-01T23:59:59.000Z

366

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

367

Concentrating solar power | Open Energy Information  

Open Energy Info (EERE)

Concentrating Solar Power Basics (The following text is derived from NREL's concentrating solar power information page.)[1] Concentrating solar power (CSP) offers a utility-scale, firm, dispatchable renewable energy option that can help meet our nation's demand for electricity. CSP plants produce power by first using mirrors to focus sunlight to heat a working fluid. Ultimately, this high-temperature fluid is used to spin a turbine or power an engine that drives a generator. And the final product is electricity. Smaller CSP systems can be located directly where the power is needed. Larger, utility-scale CSP applications provide hundreds of megawatts of electricity for the power grid. Both linear concentrator and power tower systems can be easily integrated with thermal storage, helping to generate

368

Sandia National Laboratories: Concentrating Solar Power  

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

CSP Resources On September 26, 2012, in CSP Images & Videos On September 26, 2012, in Image Gallery Videos Concentrating Solar Power Image Gallery A picture says a thousand words,...

369

Low-Cost, Lightweight Solar Concentrator  

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

sunshot DOEGO-102012-3663 * September 2012 MOTIVATION Solar concentrators currently cost 150-250m 2 , which represents as much as half of the total installed cost for a...

370

Viscosity/Concentration Relationships for Emulsions  

Science Journals Connector (OSTI)

Empirical and theoretical relationships are developed to describe the viscosity/concentration behavior of Newtonian and non?Newtonian emulsions having dispersed?phase concentrations less than 74% by volume. The developed equations are valid for both oil in water and water in oil types of emulsions.Emulsions exhibiting electroviscous effect (increase in viscosity due to presence of electric charge on the surface of droplets) could also be described adequately by these equations. The proposed equations have the ability to predict the emulsionviscosity as a function of dispersed?phase concentration and shear rate if the flow curve (shear stress versus shear rate plot) is known experimentally at a single value of the dispersed?phase concentration.

Rajinder Pal; Edward Rhodes

1989-01-01T23:59:59.000Z

371

Future trends in environmental mercury concentrations: implications  

E-Print Network [OSTI]

Future trends in environmental mercury concentrations: implications for prevention strategies interactions among natural and human climate system components; objectively assess uncertainty in economic, monitor and verify greenhouse gas emissions and climatic impacts. This reprint is one of a series intended

372

Advancing Concentrating Solar Power Research (Fact Sheet)  

SciTech Connect (OSTI)

Researchers at the National Renewable Energy Laboratory (NREL) provide scientific, engineering, and analytical expertise to help advance innovation in concentrating solar power (CSP). This fact sheet summarizes how NREL is advancing CSP research.

Not Available

2014-02-01T23:59:59.000Z

373

Effect of concentration polarization on permselectivity  

E-Print Network [OSTI]

In this paper, the variation of permselectivity in the course of concentration polarization is systematically analyzed for a three-layer membrane system consisting of a nonperfectly permselective ion exchange membrane, ...

abu-Rjal, Ramadan

374

Sandia National Laboratories: Concentrating Solar Power  

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

Molten Salt Test Loop Melted Salt On October 10, 2012, in Concentrating Solar Power, Energy, News, Renewable Energy, Solar The Molten Salt Test Loop (MSTL) team at Sandia National...

375

Postnatal Testosterone Concentrations and Male Social Development  

E-Print Network [OSTI]

concentrations of testosterone predicted less vocalization in toddlers and higher parental ratings on an established screening measure for autism spectrum disorder. These findings suggest a role of the transient activation of the HPG axis in the development...

Alexander, Gerianne M.

2014-01-13T23:59:59.000Z

376

Physics and Astronomy Engineering Electronics Concentration  

E-Print Network [OSTI]

Physics and Astronomy Engineering Electronics Concentration Strongly recommended courses Credits PHY 3230 Thermal Physics 2 PHY 4330 Digital Electronics 3 PHY 4635 Advanced Microprocessors Grade PHY 4020 Computational Methods in Physics & Engineering 3 PHY 4620 Optics 4 PHY 4735

Thaxton, Christopher S.

377

Market boundaries for coking-coal concentrates  

Science Journals Connector (OSTI)

The construction of geographic and commodity boundaries is considered in relation to the Russian market for coking-coal concentrates. In this market, uniform commodities ... construction of the market boundaries....

V. A. Brodskii

2011-05-01T23:59:59.000Z

378

Gas concentration cells for utilizing energy  

DOE Patents [OSTI]

An apparatus and method are disclosed for utilizing energy, in which the apparatus may be used for generating electricity or as a heat pump. When used as an electrical generator, two gas concentration cells are connected in a closed gas circuit. The first gas concentration cell is heated and generates electricity. The second gas concentration cell repressurizes the gas which travels between the cells. The electrical energy which is generated by the first cell drives the second cell as well as an electrical load. When used as a heat pump, two gas concentration cells are connected in a closed gas circuit. The first cell is supplied with electrical energy from a direct current source and releases heat. The second cell absorbs heat. The apparatus has no moving parts and thus approximates a heat engine. 4 figs.

Salomon, R.E.

1987-06-30T23:59:59.000Z

379

Unfolded aplanats for high-concentration photovoltaics  

Science Journals Connector (OSTI)

The exigencies of high-concentration photovoltaics motivate optics that (1) obviate the need for optical bonds, (2) exhibit maximal optical tolerance, (3) are not damaged at off-axis...

Gordon, Jeffrey M; Feuermann, Daniel; Young, Pete

2008-01-01T23:59:59.000Z

380

Gas concentration cells for utilizing energy  

DOE Patents [OSTI]

An apparatus and method for utilizing energy, in which the apparatus may be used for generating electricity or as a heat pump. When used as an electrical generator, two gas concentration cells are connected in a closed gas circuit. The first gas concentration cell is heated and generates electricity. The second gas concentration cell repressurizes the gas which travels between the cells. The electrical energy which is generated by the first cell drives the second cell as well as an electrical load. When used as a heat pump, two gas concentration cells are connected in a closed gas circuit. The first cell is supplied with electrical energy from a direct current source and releases heat. The second cell absorbs heat. The apparatus has no moving parts and thus approximates a heat engine.

Salomon, Robert E. (Philadelphia, PA)

1987-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "level concentration estimated" 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

DNA Concentration By UV Spectrophotometry Measure Absorption  

E-Print Network [OSTI]

DNA Concentration By UV Spectrophotometry Measure Absorption: 1. Dilute DNA to 0.5 to 50 µg 2. Measure absorption at 260 nm (A260). Start by zeroing instrument with TE buffer or dH2O alone

Aris, John P.

382

SunShot Concentrating Solar Power Program  

Broader source: Energy.gov [DOE]

This poster, originally presented at the Concentrating Solar Power program review, summarizes the DOE SunShot Initiative's goals as well as the strategy for CSP funding opportunity announcements.

383

Landscape Design, Construction and Management Concentration  

E-Print Network [OSTI]

Landscape Design, Construction and Management Concentration Program of Study The Landscape for careers in the landscape and nursery industries, public gardens and arboreta. Opportunities include plant production, landscape design, construction and maintenance, marketing, management

Isaacs, Rufus

384

2014 Concentrating Solar Power Report | Department of Energy  

Energy Savers [EERE]

2014 Concentrating Solar Power Report 2014 Concentrating Solar Power Report Concentrating solar power (CSP) is a technology that harnesses the sun's energy potential and has the...

385

NREL: Concentrating Solar Power Research Home Page  

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

A collage of Concentrating Solar Power photographs. The first photo shows a dish-engine solar system. The second is of a SAIC Stirling dish collector. And the third photo shows a SkyTrough solar concentrator located on a mesa top. A collage of Concentrating Solar Power photographs. The first photo shows a dish-engine solar system. The second is of a SAIC Stirling dish collector. And the third photo shows a SkyTrough solar concentrator located on a mesa top. NREL collaborates with industry to further the research and development (R&D) of concentrating solar power (CSP) plant and solar thermal technologies. NREL's projects in concentrating solar power focus on components R&D and systems analysis related to power tower and parabolic trough technologies: Collectors Receivers Power block Thermal energy storage Analysis. In addition, NREL has received funding through the following competitively awarded projects: 10-megawatt supercritical carbon dioxide (s-CO2) turbine test Near-blackbody, enclosed-particle receiver integrated with a

386

Radionuclide concentrations in white sturgeon from the Columbia River  

SciTech Connect (OSTI)

Although radioactive releases from the US Department of Energy's Hanford Site have been monitored in the environment since the reactors began operating in 1945, recent information regarding historical releases of radionuclides has led to renewed interest in estimating human exposure to radionuclides at Hanford. Knowledge of the fate of radionuclides in some fish species may be important because of the potential for food-chain transfer to humans. White sturgeon (Acipenser transmontanus) were selected for study because they are long-lived, reside year-round in the Hanford Reach, are benthic, and are an important commercial and sport species in the Columbia River. They also have a greater potential for accumulating persistent radionuclides than shorter-lived species with pelagic and/or anadromous life histories. The purpose of our study was to summarize data on historical concentrations of industrial radionuclides in white sturgeon and to collect additional data on current body burdens in the Columbia River.

Dauble, D.D.; Price, K.R.; Poston, T.M.

1992-09-01T23:59:59.000Z

387

Radionuclide concentrations in white sturgeon from the Columbia River  

SciTech Connect (OSTI)

Although radioactive releases from the US Department of Energy`s Hanford Site have been monitored in the environment since the reactors began operating in 1945, recent information regarding historical releases of radionuclides has led to renewed interest in estimating human exposure to radionuclides at Hanford. Knowledge of the fate of radionuclides in some fish species may be important because of the potential for food-chain transfer to humans. White sturgeon (Acipenser transmontanus) were selected for study because they are long-lived, reside year-round in the Hanford Reach, are benthic, and are an important commercial and sport species in the Columbia River. They also have a greater potential for accumulating persistent radionuclides than shorter-lived species with pelagic and/or anadromous life histories. The purpose of our study was to summarize data on historical concentrations of industrial radionuclides in white sturgeon and to collect additional data on current body burdens in the Columbia River.

Dauble, D.D.; Price, K.R.; Poston, T.M.

1992-09-01T23:59:59.000Z

388

Estimation of resources and reserves  

E-Print Network [OSTI]

This report analyzes the economics of resource and reserve estimation. Current concern about energy problems has focused attention on how we measure available energy resources. One reads that we have an eight-year oil ...

Massachusetts Institute of Technology. Energy Laboratory.

1982-01-01T23:59:59.000Z

389

Wavelet Based Density Estimators for Modeling Multidimensional Data Sets  

E-Print Network [OSTI]

the distribution of this random variable. We exhibit an estimator for the wavelet coeÃ?cients of this density and ionospheric data. After three levels of o#11;-line pre-processing, observations of temperature, water vapor agreement nr. F30602-99-1-0524, and unrestricted cash/equipment gifts from NCR, IBM, Intel and SUN. #12; 1

Shahabi, Cyrus

390

Estimating Hydrologic Values for Planning Wildland Fire Protection1  

E-Print Network [OSTI]

Estimating Hydrologic Values for Planning Wildland Fire Protection1 Henry W. Anderson and Clinton B- quencies under various levels of protection in the area, and (c) the effects of those fires-26, 1981, San Diego, California. 2 Consulting Hydrologist, Lafayette, California, Assistant Chief of Fire

Standiford, Richard B.

391

Estimating the effect of air pollution from a coal-fired power station on the development of children's pulmonary function  

SciTech Connect (OSTI)

Using geographical information systems (GIS) tools, the present study analyzed the association between children's lung function development and their long-term exposure to air pollution. The study covered the cohort of 1492 schoolchildren living in the vicinity of a major coal-fired power station in the Hadera sub-district of Israel. In 1996 and 1999, the children underwent subsequent pulmonary function tests (PFT) (forced vital capacity (FVC) and forced expiratory volume during the first second (FEV1)), and the children's parents completed a detailed questionnaire on their health status and household characteristics. A negative association was found between changes in the results of PFT and the estimated individual levels of air pollution. A sensitivity test revealed a FEV1 decline from -4.3% for the average pollution level to -10.2% for the high air pollution level. The results of a sensitivity test for FVC were found to be similar. Association with the reported health status was found to be insignificant. As we conclude, air pollution from a coal-fired power station, although not exceeding local pollution standards, had a negative effect on children's lung function development. As argued, previous studies carried out in the region failed to show the above association because they were based on zone approaches that assign average concentration levels of air pollutants to all individuals in each zone, leading to a misclassification bias of individual exposure.

Dubnov, J.; Barchana, M.; Rishpon, S.; Leventhal, A.; Segal, I.; Carel, R.; Portnov, B.A. [Ministry of Health, Haifa (Israel). Haifa District Health Office

2007-01-15T23:59:59.000Z

392

Estimating the Value of Electricity Storage Resources in Electricity  

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

Estimating the Value of Electricity Storage Resources in Estimating the Value of Electricity Storage Resources in Electricity Markets - EAC 2011 Estimating the Value of Electricity Storage Resources in Electricity Markets - EAC 2011 The purpose of this report is to assist the U.S. Department of Energy (DOE) in 1) establishing a framework for understanding the role electricity storage resources (storage) can play in wholesale and retail electricity markets, 2) assessing the value of electricity storage in a variety of regions or markets, 3) analyzing current and potential issues that can affect the valuation of storage by investors at the wholesale and retail level, and 4) identifying areas for future research and development for electricity storage technologies and applications. EAC - Estimating the Value of Electricity Storage Resources in Electricity

393

Estimating the Value of Electricity Storage Resources in Electricity  

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

Estimating the Value of Electricity Storage Resources in Estimating the Value of Electricity Storage Resources in Electricity Markets - EAC 2011 Estimating the Value of Electricity Storage Resources in Electricity Markets - EAC 2011 The purpose of this report is to assist the U.S. Department of Energy (DOE) in 1) establishing a framework for understanding the role electricity storage resources (storage) can play in wholesale and retail electricity markets, 2) assessing the value of electricity storage in a variety of regions or markets, 3) analyzing current and potential issues that can affect the valuation of storage by investors at the wholesale and retail level, and 4) identifying areas for future research and development for electricity storage technologies and applications. EAC - Estimating the Value of Electricity Storage Resources in Electricity

394

The feasibility of low CO2 concentration targets and the role of bio-energy with carbon capture and storage (BECCS)  

Science Journals Connector (OSTI)

The United Nations Framework Convention on Climate Change (UNFCCC 1992) calls for stabilization of atmospheric greenhouse gas (GHG) concentrations at a level that would prevent dangerous anthropogenic interferenc...

Christian Azar; Kristian Lindgren; Michael Obersteiner; Keywan Riahi…

2010-05-01T23:59:59.000Z

395

High level nuclear waste  

SciTech Connect (OSTI)

The DOE Division of Waste Products through a lead office at Savannah River is developing a program to immobilize all US high-level nuclear waste for terminal disposal. DOE high-level wastes include those at the Hanford Plant, the Idaho Chemical Processing Plant, and the Savannah River Plant. Commercial high-level wastes, for which DOE is also developing immobilization technology, include those at the Nuclear Fuel Services Plant and any future commercial fuels reprocessing plants. The first immobilization plant is to be the Defense Waste Processing Facility at Savannah River, scheduled for 1983 project submission to Congress and 1989 operation. Waste forms are still being selected for this plant. Borosilicate glass is currently the reference form, but alternate candidates include concretes, calcines, other glasses, ceramics, and matrix forms.

Crandall, J L

1980-01-01T23:59:59.000Z

396

ENRAF gauge reference level calculations  

SciTech Connect (OSTI)

This document describes the method for calculating reference levels for Enraf Series 854 Level Detectors as installed in the tank farms. The reference level calculation for each installed level gauge is contained herein.

Huber, J.H., Fluor Daniel Hanford

1997-02-06T23:59:59.000Z

397

Ultrasonic liquid level detector  

DOE Patents [OSTI]

An ultrasonic liquid level detector for use within a shielded container, the detector being tubular in shape with a chamber at its lower end into which liquid from in the container may enter and exit, the chamber having an ultrasonic transmitter and receiver in its top wall and a reflector plate or target as its bottom wall whereby when liquid fills the chamber a complete medium is then present through which an ultrasonic wave may be transmitted and reflected from the target thus signaling that the liquid is at chamber level.

Kotz, Dennis M. (North Augusta, SC); Hinz, William R. (Augusta, GA)

2010-09-28T23:59:59.000Z

398

Liquid-level detector  

DOE Patents [OSTI]

Aliquid level sensor is described which has a pair of upright conductors spaced by an insulator defining a first high resistance path between the conductors. An electrically conductive path is interposed between the upright conductors at a discrete location at which liquid level is to be measured. It includes a liquid accessible gap of a dimension such that the electrical resistance across the conductor when the gap is filled with the liquid is detectably less than when the gap is emptied. The conductor might also be physically altered by temperature changes to serve also as an indicator of elevated temperature.

Not Available

1981-01-29T23:59:59.000Z

399

Concentrating Solar Power SunShot Research and Development |...  

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

Flexible Assembly Solar Technology Jet Propulsion Laboratory: Low-Cost, Lightweight Solar Concentrators Massachusetts Institute of Technology: Concentrated Solar...

400

National Laboratory Concentrating Solar Power Research and Development...  

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

& Publications National Laboratory Concentrating Solar Power Research and Development Particle Receiver Integrated with Fludized Bed Scattering Solar Thermal Concentrators...

Note: This page contains sample records for the topic "level concentration estimated" 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

Strategic Minimization of High Level Waste from Pyroprocessing of Spent Nuclear Fuel  

SciTech Connect (OSTI)

The pyroprocessing of spent nuclear fuel results in two high-level waste streams--ceramic and metal waste. Ceramic waste contains active metal fission product-loaded salt from the electrorefining, while the metal waste contains cladding hulls and undissolved noble metals. While pyroprocessing was successfully demonstrated for treatment of spent fuel from Experimental Breeder Reactor-II in 1999, it was done so without a specific objective to minimize high-level waste generation. The ceramic waste process uses “throw-away” technology that is not optimized with respect to volume of waste generated. In looking past treatment of EBR-II fuel, it is critical to minimize waste generation for technology developed under the Global Nuclear Energy Partnership (GNEP). While the metal waste cannot be readily reduced, there are viable routes towards minimizing the ceramic waste. Fission products that generate high amounts of heat, such as Cs and Sr, can be separated from other active metal fission products and placed into short-term, shallow disposal. The remaining active metal fission products can be concentrated into the ceramic waste form using an ion exchange process. It has been estimated that ion exchange can reduce ceramic high-level waste quantities by as much as a factor of 3 relative to throw-away technology.

Simpson, Michael F.; Benedict, Robert W.

2007-09-01T23:59:59.000Z

402

TransCom3 Level 2 Data Set Released  

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

Level 2 Data Set Released Level 2 Data Set Released The ORNL DAAC announces the release of "TransCom 3: Seasonal CO2 Flux Estimates from Atmospheric Inversions (Level 2)", prepared by K.R. Gurney and A.S. Denning. This data set provides model outputs and seasonal mean CO2 fluxes from the Atmospheric Carbon Cycle Inversion Intercomparison (TransCom 3), Level 2 inversion experiment. This Level 2 experiment inverted for the spatial and temporal pattern of the residual CO2 sources and sinks. The seasonal inversion consists of a 3-year forward simulation (365 days per year) containing 4 presubtracted tracers, 11 SF6 tracers, and 22 CO2 tracers (11 terrestrial, 11 oceanic) (Gurney et al., 2000). Carbon fluxes were estimated for each month of an average year determined as the mean of the

403

Oxygen Concentration Microgradients for Cell Culture  

E-Print Network [OSTI]

The Chemotactic Effect of Oxygen on Bacteria,” J. Pathol.Measurement and Control of Oxygen Levels in MicrofluidicA Microfabricated Electrochemical Oxygen Generator for High-

Park, Jaehyun

2010-01-01T23:59:59.000Z

404

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

405

concentrating solar power | OpenEI  

Open Energy Info (EERE)

concentrating solar power concentrating solar power Dataset Summary Description This dataset is part of a larger internal dataset at the National Renewable Energy Laboratory (NREL) that explores various characteristics of large solar electric (both PV and CSP) facilities around the United States. This dataset focuses on the land use characteristics for solar facilities that are either under construction or currently in operation. Source Land-Use Requirements for Solar Power Plants in the United States Date Released June 25th, 2013 (7 months ago) Date Updated Unknown Keywords acres area average concentrating solar power csp Density electric hectares km2 land land requirements land use land-use mean photovoltaic photovoltaics PV solar statistics Data application/vnd.openxmlformats-officedocument.spreadsheetml.sheet icon Master Solar Land Use Spreadsheet (xlsx, 1.5 MiB)

406

Heavy metal concentrations in soils of five United States cities, 1972 urban soils monitoring program  

SciTech Connect (OSTI)

Research report:Lead, mercury, cadmium, and arsenic levels detected in soil samples taken from five U.S. cities are reported. Cities studied were: Des Moines, Iowa; Fitchburg, Mass.; Lake Charles, La.; Reading, Pa.; and Pittsburgh. In all cities except Fitchburg, urban soils had higher concentrations of the metals than suburban soils had. Higher metals concentrations in urban soil are attributed to atmospheric fallout of aerosols from industrial processes and fossil fuel burning. (26 references, 2 tables)

Carey, A.E.; Gowen, J.A.; Forehand, T.J.; Tai, H.; Wiersma, G.B.

1980-03-01T23:59:59.000Z

407

Simplified 2DEG carrier concentration model for composite barrier AlGaN/GaN HEMT  

SciTech Connect (OSTI)

The self consistent solution of Schrodinger and Poisson equations is used along with the total charge depletion model and applied with a novel approach of composite AlGaN barrier based HEMT heterostructure. The solution leaded to a completely new analytical model for Fermi energy level vs. 2DEG carrier concentration. This was eventually used to demonstrate a new analytical model for the temperature dependent 2DEG carrier concentration in AlGaN/GaN HEMT.

Das, Palash, E-mail: d.palash@gmail.com; Biswas, Dhrubes, E-mail: d.palash@gmail.com [Indian Institute of Technology Kharagpur, Kharagpur - 721302, West Bengal (India)

2014-04-24T23:59:59.000Z

408

Resonance-shifting luminescent solar concentrators  

DOE Patents [OSTI]

An optical system and method to overcome luminescent solar concentrator inefficiencies by resonance-shifting, in which sharply directed emission from a bi-layer cavity into a glass substrate returns to interact with the cavity off-resonance at each subsequent reflection, significantly reducing reabsorption loss en route to the edges. In one embodiment, the system comprises a luminescent solar concentrator comprising a transparent substrate, a luminescent film having a variable thickness; and a low refractive index layer disposed between the transparent substrate and the luminescent film.

Giebink, Noel Christopher; Wiederrecht, Gary P; Wasielewski, Michael R

2014-09-23T23:59:59.000Z

409

Framework for State-Level Renewable Energy Market Potential Studies  

SciTech Connect (OSTI)

State-level policymakers are relying on estimates of the market potential for renewable energy resources as they set goals and develop policies to accelerate the development of these resources. Therefore, accuracy of such estimates should be understood and possibly improved to appropriately support these decisions. This document provides a framework and next steps for state officials who require estimates of renewable energy market potential. The report gives insight into how to conduct a market potential study, including what supporting data are needed and what types of assumptions need to be made. The report distinguishes between goal-oriented studies and other types of studies, and explains the benefits of each.

Kreycik, C.; Vimmerstedt, L.; Doris, E.

2010-01-01T23:59:59.000Z

410

Evaluation of the capabilities of the Hanford Reservation and Envirocare of Utah for disposal of potentially problematic mixed low-level waste streams  

SciTech Connect (OSTI)

The US Department of Energy`s (DOE) Mixed Waste Focus Area is developing a program to address and resolve issues associated with final waste form performance in treating and disposing of DOE`s mixed low-level waste (MLLW) inventory. A key issue for the program is identifying MLLW streams that may be problematic for disposal. Previous reports have quantified and qualified the capabilities of fifteen DOE sites for MLLW disposal and provided volume and radionuclide concentration estimates for treated MLLW based on the DOE inventory. Scoping-level analyses indicated that 101 waste streams identified in this report (approximately 6,250 m{sup 3} of the estimated total treated MLLW) had radionuclide concentrations that may make their disposal problematic. The radionuclide concentrations of these waste streams were compared with the waste acceptance criteria (WAC) for a DOE disposal facility at Hanford and for Envirocare`s commercial disposal facility for MLLW in Utah. Of the treated MLLW volume identified as potentially problematic, about 100 m{sup 3} exceeds the WAC for disposal at Hanford, and about 4,500 m{sup 3} exceeds the WAC for disposal at Envirocare. Approximately 7% of DOE`s total MLLW inventory has not been sufficiently characterized to identify a treatment process for the waste and was not included in the analysis. In addition, of the total treated MLLW volume, about 30% was associated with waste streams that did not have radionuclide concentration data and could not be included in the determination of potentially problematic waste streams.

Waters, R.D.; Pohl, P.I.; Cheng, W.C.; Gruebel, M.M.; Wheeler, T.A.; Langkopf, B.S.

1998-03-01T23:59:59.000Z

411

Estimated Cost Description Determination Date:  

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

and posted 2/10/2011 and posted 2/10/2011 *Title, Location Estimated Cost Description Determination Date: uncertain Transmittal to State: uncertain EA Approval: uncertain $50,000 FONSI: uncertain Determination Date: uncertain Transmittal to State: uncertain EA Approval: uncertain FONSI: uncertain Total Estimated Cost $70,000 Attachment: Memo, Moody to Marcinowski, III, SUBJECT: NEPA 2011 APS for DOE-SRS, Dated: Annual NEPA Planning Summary Environmental Assessments (EAs) Expected to be Initiated in the Next 12 Months Department of Energy (DOE) Savannah River Site (SRS) Jan-11 Estimated Schedule (**NEPA Milestones) South Carolina Department of Health and Environmental Control (SCDHEC) issued a National Pollutant Discharge Elimination System (NPDES) Industrial Stormwater General Permit (IGP) # SCR000000 November 12, with an effective date of January

412

STATE ESTIMATION AND THE MEANING The discipline of the scholar is a consecration to the pursuit of the truth.  

E-Print Network [OSTI]

with the things of God. Optimal State Estimation, First Edition. By Dan J. Simon ISBN 0471708585 c 2006 John Wiley, and other subatomic particles. Similarly, on a superficial level it appears that state estimation estimation is based on mathematical truth. · God created the universe and all that is in it. This includes

Simon, Dan

413

Lead and chromium concentrations in the potable water of the Eastern Province of Saudi Arabia  

SciTech Connect (OSTI)

The World Health Organization (WHO) and United States Public Health Service (USPHS) standards for drinking water recommend an upper limit concentration of 0.05 mg/L for both lead and chromium. The authors studied the cadmium and zinc concentrations in the potable water of the Eastern Province of the Kingdom of Saudi Arabia. They report here the results of the study of lead and chromium concentrations in the potable water of the same area to provide a more complete profile of the levels of heavy metals in the potable water of the Eastern Province.

Hassan, H.M.A.; Mustafa, H.T.; Rihan, T.I. (King Faisal Univ., Dammam (Saudi Arabia))

1989-10-01T23:59:59.000Z

414

Lead and cadmium concentrations in the hair of fishermen from the Subae River basin, Brazil  

SciTech Connect (OSTI)

Previous studies have shown heavy pollution by lead and cadmium in the Subae River basin, State of Bahia, Brazil, caused by a lead smelter. Concentrations of these metals were determined in scalp hair of fishermen from three riverside towns and from a reference town. Increased levels for both metals were associated with increasing proximity to the smelter. Mean concentrations of lead and cadmium were higher among fishermen with straight hair than among those with curly hair. The effects of hair washing, hair type, and color and age on metal concentrations in fishermen's hair were studied.

Carvalho, F.; Tavares, T.M.; Souza, S.P.; Linhares, P.S.

1984-04-01T23:59:59.000Z

415

The effect of dietary protein and fiber on in vivo ammonia concentration  

E-Print Network [OSTI]

protein level, ten animals received a basal fiber-free diet, ten received the same diet diluted with 8X cellulose, and ten received the basal diet diluted with BX pectin. Cecal total ammonia (NH + NH ) concentration was highest 4 in the fiber-free high... protein and the cellulose high protein-fed rats. The proximal colon ammonia concentration was greatest in the fiber-free high protein treatment group, and the pectin-fed rats had a significantly greater concentration than the cellulose groups...

Marchant, Linda Jean

1986-01-01T23:59:59.000Z

416

SunShot Initiative: Concentrating Solar Power  

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

Power 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 High-Efficiency Thermal Energy Storage System for CSP University of California Los Angeles University of California Los Angeles High Operating Temperature Liquid Metal Heat Transfer Fluids Jet Propulsion Laborator Jet Propulsion Laboratory Low-Cost, Lightweight Solar Concentrators Abengoa Solar Abengoa Solar Advanced Nitrate Salt Central Receiver Power Plant HiTek Services HiTek Services Low-Cost Heliostat Development The Department of Energy (DOE) supports research and development of concentrating solar power (CSP) technologies as a unique path to achieve SunShot Initiative cost targets with systems that can supply solar power on demand through the use of thermal storage. CSP technologies use mirrors to reflect and concentrate sunlight onto receivers that collect solar energy and convert it to heat. Thermal energy can then be used to produce electricity via a turbine or heat engine driving a generator.

417

Low-Cost, Lightweight Solar Concentrators  

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

or parabolic dish) can range between 40-50% of the total costs. To meet SunShot cost target of 6ckWh, the concentrator costs need to reduced from 150-200m 2 to 75m 2...

418

BME ERGONOMICS AND REHABILITATION ENGINEERING CONCENTRATION1  

E-Print Network [OSTI]

BME ERGONOMICS AND REHABILITATION ENGINEERING CONCENTRATION1 ­ F10 MS: 30 total credit hours minimum Advisor: Thomas J. Armstrong, Ph.D. (tja@umich.edu) Ergonomics /Rehabilitation Engineering: IOE 463 Measurement and Design of Work (3) (I, II) (Prerequisite: IOE 333 Ergonomics) BIOMED E 534

Eustice, Ryan

419

Concentrated solutions for internal wave equations  

SciTech Connect (OSTI)

The authors consider the propagation of internal gravity waves in a stratified fluid layer with a current. Formal asymptotic solutions concentrated in the horizontal plane are constructed for the linearized system of equations in the Boussinesq approximation. The complex space-time ray method is used.

Markov, V.A.

1987-07-10T23:59:59.000Z

420

Physiological Concentrations of DHEA in Human Hair  

Science Journals Connector (OSTI)

......doping agent. As athletes can abuse DHEA to benefit from its conversion...positive screen for testosterone abuse (5). However,in the same...body-buildingclientele on the Internet is up to 1000mg/day. Although...concentrations for determining abuse, a more complete epidemiological......

P. Kintz; V. Cirimele; B. Ludes

1999-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "level concentration estimated" 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

Optimal concentration for sugar transport in plants  

Science Journals Connector (OSTI)

...authors wish thank Maciej Zwieniecki, John Bush, Wonjung Kim, Nick Carroll, Kenneth Ho and David Weitz. This work was supported...pp.37.4.527 ( doi:10.1104/pp.37.4.527 ) 73 Merritt, SZ . 1996 Within-plant variation in concentrations of amino...

2013-01-01T23:59:59.000Z

422

Physics and Astronomy Engineering/Physics Concentration  

E-Print Network [OSTI]

Physics and Astronomy Engineering/Physics Concentration Strongly recommended courses Credits Term Electromagnetic Fields & Waves 3 PHY 3230 Thermal Physics 3 PHY 4020 Computational Methods in Physics.) taken Grade PHY 4620 Optics 4 PHY 3211 Modern Physics II 3 PHY 4730 Analog Circuits 3 PHY 4640 Quantum

Thaxton, Christopher S.

423

Physics and Astronomy Radiation Safety Physics Concentration  

E-Print Network [OSTI]

Physics and Astronomy Radiation Safety Physics Concentration Strongly recommended courses Credits Environucleonics Lab 1 PHY 3211 Modern Physics II 3 PHY 3230 Thermal Physics 3 PHY 4330 Digital Electronics 3 PHY 4820 Medical Physics 3 CHE 1101 Intro. Chemistry I 3 CHE 1110 Intro. Chemistry I Lab 1 CHE 1102 Intro

Thaxton, Christopher S.

424

Physics and Astronomy Chemical Physics Concentration  

E-Print Network [OSTI]

Physics and Astronomy Chemical Physics Concentration Strongly recommended courses Credits Term Dept Fields & Waves 3 PHY 3230 Thermal Physics 3 PHY 4640 Quantum Mechanics 3 PHY 4020 Computational Methods in Physics & Engineering 3 PHY 4330 Digital Electronics 3 CHE 1101 Intro. Chemistry I 3 CHE 1110 Intro

Thaxton, Christopher S.

425

Diploma in Management Internet Business concentration  

E-Print Network [OSTI]

, telecommunications, the internet and the Web as well as a good understanding of consumer behaviour. Our internet1 Diploma in Management Internet Business concentration Looking for a Career in Internet Business? Since the past decade, internet and web-based technologies have evolved to become a fundamental part

Pientka, Brigitte

426

Project Profile: Scattering Solar Thermal Concentrators  

Broader source: Energy.gov [DOE]

Pennsylvania State University, under the 2012 SunShot Concentrating Solar Power (CSP) R&D FOA, is designing and testing a novel solar collector system that relies on stationary optics, avoiding the need for mirror movement. The system is capable of achieving optical performance equal to state-of-the-art parabolic trough systems, but at a lower cost.

427

Nonimaging light concentrator with uniform irradiance  

DOE Patents [OSTI]

A nonimaging light concentrator system including a primary collector of light, an optical mixer disposed near the focal zone for collecting light from the primary collector, the optical mixer having a transparent entrance aperture, an internally reflective housing for substantially total internal reflection of light, a transparent exit aperture and an array of photovoltaic cells disposed near the transparent exit aperture.

Winston, Roland (Chicago, IL); Gee, Randy C. (Arvada, CO)

2003-04-01T23:59:59.000Z

428

Nuclear Engineering Catalog 2014 Radiological Concentration  

E-Print Network [OSTI]

Nuclear Engineering Catalog 2014 Radiological Concentration Fall Math 141 or 147 (4) FA, SP, SU-approved by the department. Courses in Nuclear Engineering other than 500, 502 or 598 may also be used as technical electives. No more than four (4) credit hours of nuclear engineering courses in which a C- or lower is the highest

Grissino-Mayer, Henri D.

429

Biomedical Engineering Graduate Concentration Fall 2013 Biotechnology  

E-Print Network [OSTI]

Biomedical Engineering Graduate Concentration ­ Fall 2013 Biotechnology BIOTECHNOLOGY (select one course): BIOMEDE 410 Design and Applications of Biomaterials (3) (I) BIOMEDE 556 Cellular and Molecular Biomechanics (3) (I) BIOMEDE 574 Cells in Their Environment (3) (II) BIOMEDE 616 Analysis of Chemical Signaling

Eustice, Ryan

430

Biomedical Engineering Graduate Concentration Fall 2014 Bioelectrical  

E-Print Network [OSTI]

Biomedical Engineering Graduate Concentration ­ Fall 2014 Bioelectrical Advisor: Cynthia Chestek, Ph.D. BIOELECTRICAL: BIOMEDE 417 Electrical Biophysics (4) (II) GENERAL (both courses are required): BIOMEDE 500 Biomedical Engineering Seminar (1) (I,II) BIOMEDE 550 Ethics and Enterprise (1) (I) BIOMEDICAL

Eustice, Ryan

431

Biomedical Engineering Graduate Concentration Fall 2013 Biomechanics  

E-Print Network [OSTI]

Biomedical Engineering Graduate Concentration ­ Fall 2013 Biomechanics BIOMECHANICS (select one course): BIOMEDE 456 Tissue Mechanics (3) (I) BIOMEDE 476 Biofluid Mechanics (4) (II) GENERAL (both courses are required): BIOMEDE 500 Biomedical Engineering Seminar (1) (I,II) BIOMEDE 550 Ethics

Eustice, Ryan

432

Biomedical Engineering Graduate Concentration Fall 2014 Biomaterials  

E-Print Network [OSTI]

Biomedical Engineering Graduate Concentration ­ Fall 2014 Biomaterials Advisor: David Kohn, Ph.D. BIOMATERIALS: BIOMEDE 410 Design and Applications of Biomaterials (3) (I) GENERAL (both courses are required): BIOMEDE 500 Biomedical Engineering Seminar (1) (I,II) BIOMEDE 550 Ethics and Enterprise (1) (I) BIOMEDICAL

Eustice, Ryan

433

Biomedical Engineering Graduate Concentration Fall 2013 Bioelectrical  

E-Print Network [OSTI]

Biomedical Engineering Graduate Concentration ­ Fall 2013 Bioelectrical BIOELECTRICAL: BIOMEDE 417 Electrical Biophysics (4) (II) GENERAL (both courses are required): BIOMEDE 500 Biomedical Engineering Seminar (1) (I,II) BIOMEDE 550 Ethics and Enterprise (1) (I) BIOMEDICAL RESEARCH AND DESIGN (select one

Eustice, Ryan

434

Biomedical Engineering Graduate Concentration Fall 2013 Biomaterials  

E-Print Network [OSTI]

Biomedical Engineering Graduate Concentration ­ Fall 2013 Biomaterials BIOMATERIALS: BIOMEDE 410 Design and Applications of Biomaterials (3) (I) GENERAL (both courses are required): BIOMEDE 500 Biomedical Engineering Seminar (1) (I,II) BIOMEDE 550 Ethics and Enterprise (1) (I) BIOMEDICAL RESEARCH

Eustice, Ryan

435

Biomedical Engineering Graduate Concentration Fall 2014 Biomechanics  

E-Print Network [OSTI]

Biomedical Engineering Graduate Concentration ­ Fall 2014 Biomechanics Advisor: Scott Hollister, Ph.D. BIOMECHANICS (select one course): BIOMEDE 456 Tissue Mechanics (3) (I) BIOMEDE 476 Biofluid Mechanics (4) (II) GENERAL (both courses are required): BIOMEDE 500 Biomedical Engineering Seminar (1) (I,II) BIOMEDE 550

Eustice, Ryan

436

Biomedical Engineering Graduate Concentration Fall 2014 Biotechnology  

E-Print Network [OSTI]

Biomedical Engineering Graduate Concentration ­ Fall 2014 Biotechnology Advisor: Michael Mayer, Ph.D. BIOTECHNOLOGY (select one course): BIOMEDE 410 Design and Applications of Biomaterials (3) (I) BIOMEDE 556 Cellular and Molecular Biomechanics (3) (I) BIOMEDE 574 Cells in Their Environment (3) (II) BIOMEDE 616

Eustice, Ryan

437

Estimate sequence methods: extensions and approximations  

E-Print Network [OSTI]

Aug 11, 2009 ... Estimate sequence methods: extensions and approximations ... or both, and draw some guidelines on the design of further estimate sequence ...

Michel Baes

2009-08-11T23:59:59.000Z

438

BPA Metering Services Editing and Estimating Procedures  

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

Editing and Estimating Interval Data 1. Introduction This section defines the meter interval data editing and estimation techniques performed by BPA's Metering Services...

439

ORISE: Radiation Dose Estimates and Other Compendia  

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

downloaded free from the Adobe website. Early Internal and External Dose Magnitude Estimation (PDF) This article addresses methods that can be used to rapidly estimate internal...

440

Mississippi Crude Oil + Lease Condensate Estimated Production...  

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

Estimated Production from Reserves (Million Barrels) Mississippi Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2...

Note: This page contains sample records for the topic "level concentration estimated" 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

California Crude Oil + Lease Condensate Estimated Production...  

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

Estimated Production from Reserves (Million Barrels) California Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

442

Pennsylvania Crude Oil + Lease Condensate Estimated Production...  

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

Estimated Production from Reserves (Million Barrels) Pennsylvania Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2...

443

Estimating Waste Inventory and Waste Tank Characterization |...  

Office of Environmental Management (EM)

Estimating Waste Inventory and Waste Tank Characterization Estimating Waste Inventory and Waste Tank Characterization Summary Notes from 28 May 2008 Generic Technical Issue...

444

Development of surface mine cost estimating equations  

SciTech Connect (OSTI)

Cost estimating equations were developed to determine capital and operating costs for five surface coal mine models in Central Appalachia, Northern Appalachia, Mid-West, Far-West, and Campbell County, Wyoming. Engineering equations were used to estimate equipment costs for the stripping function and for the coal loading and hauling function for the base case mine and for several mines with different annual production levels and/or different overburden removal requirements. Deferred costs were then determined through application of the base case depreciation schedules, and direct labor costs were easily established once the equipment quantities (and, hence, manpower requirements) were determined. The data points were then fit with appropriate functional forms, and these were then multiplied by appropriate adjustment factors so that the resulting equations yielded the model mine costs for initial and deferred capital and annual operating cost. (The validity of this scaling process is based on the assumption that total initial and deferred capital costs are proportional to the initial and deferred costs for the primary equipment types that were considered and that annual operating cost is proportional to the direct labor costs that were determined based on primary equipment quantities.) Initial capital costs ranged from $3,910,470 in Central Appalachia to $49,296,785; deferred capital costs ranged from $3,220,000 in Central Appalachia to $30,735,000 in Campbell County, Wyoming; and annual operating costs ranged from $2,924,148 in Central Appalachia to $32,708,591 in Campbell County, Wyoming. (DMC)

Not Available

1980-09-26T23:59:59.000Z

445

Modification of the feeding behavior of marine copepods by sub-lethal concentrations of water-accommodated fuel oil  

Science Journals Connector (OSTI)

The feeding behaviors of Acartia clausi and A. tonsa were measured in samples of water containing low levels of a water-accommodated fraction of No. 2 fuel oil. The copepods fed normally at a hydrocarbon concentr...

M. S. Berman; D. R. Heinle

446

6 GeV light source project cost estimating procedure  

SciTech Connect (OSTI)

To maintain uniformity in estimating the cost requirements of the various components of the 6 GeV Light Source, the following procedure will be used by all the task groups. The procedure uses a Work Breakdown Structure (VBS) to break down the project into manageable, easy to estimate, components. The project is first broken down into major tasks or categories. Then each major division is continuously subdivided until the desired level of detail is achieved. This can be shown best by using the example of the WBS of the Aladdin Upgrade Project, excerpts of which are included in Appendix A.

NONE

1985-10-23T23:59:59.000Z

447

Cost Estimates for New Molecules  

Science Journals Connector (OSTI)

Cost Estimates for New Molecules ... Once this has been carried out, the projected cost/kilogram for the new drug substance (if only raw material costs and no manufacturing/overhead/labour costs are considered) may well come down by a factor of 10 or even 100, and this is often more acceptable to management trying to make strategic decisions about potential profitability. ...

Trevor Laird

2005-02-22T23:59:59.000Z

448

Characterization Of State Estimation Biases  

Science Journals Connector (OSTI)

The control and operation of an electric power system is based on the ability to determine the state of the system in real time. State estimation (SE) has been introduced in the 1960s to achieve this objective. The initial implementation was based on ...

A. P. Sakis Meliopoulos; George K. Stefopoulos

2006-01-01T23:59:59.000Z

449

Trades Estimate Guide September, 2013  

E-Print Network [OSTI]

labor hours are provided using "industry standard" hours. Each trade has an hourly recharge rate. Here are a few examples of why our shops estimates may be considered high. HVAC & SHEET METAL · In the HVAC area. This work can include: required engineering and design, new HVAC equipment to accommodate design

Rose, Michael R.

450

ERROR ESTIMATIONS FOR INDIRECT MEASUREMENTS  

E-Print Network [OSTI]

Chapter 1 ERROR ESTIMATIONS FOR INDIRECT MEASUREMENTS: RANDOMIZED VS. DETERMINISTIC ALGORITHMS difficult or even impossible to directly measure the quantity in which we are interested: e.g., we cannot directly measure a distance to a distant galaxy or the amount of oil in a given well. Since we cannot

Kreinovich, Vladik

451

2012 Proved Reserves Estimation Methodology  

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

-366 11,933 Estimated 818 124 759 0 0 19 0 0 236 1,693 1,658 Imputation for nonresponse Unit and item nonresponse on the EIA-23 is imputed for using the same ratio function that is...

452

HYPERPARAMETER ESTIMATION FOR EMISSION COMPUTED  

E-Print Network [OSTI]

HYPERPARAMETER ESTIMATION FOR EMISSION COMPUTED TOMOGRAPHY DATA A. López (a) , R. Molina (b) (a limited due to several factors. These factors include the need of greater computational time than to the projection data to obtain two-dimensional slices or cross sections (images) of activity distribution. #12

Granada, Universidad de

453

Indoor 222Rn concentration measurements in some buildings of Hebron province during the winter season of the year 2000  

Science Journals Connector (OSTI)

......4,5). The radon gas emanates from the soil...Over the past decades, natural radiation exposure due...concentration levels of radon gas and its progeny. The...the emanation of radon gas. In the case of our study...concentration measurements in Cyprus using high-sensitivity......

Amin A. Leghrouz; Mohammad M. Abu-Samreh; Karam M. Awawdah; Mohammed I. Abu-Taha; Abdelkarim M. Saleh; Rushdi M. Kitaneh; Saquer M. Darwish

2007-02-01T23:59:59.000Z

454

Statistical Estimation of Leakage-Induced Power Grid Voltage Drop Considering Within-Die Process Variations  

E-Print Network [OSTI]

Statistical Estimation of Leakage-Induced Power Grid Voltage Drop Considering Within-Die Process the power grid, the grid develops large voltage drops, which is an unavoidable background level of noise on the grid. We develop techniques for estimation of the statistics of the leakage-induced power grid voltage

Najm, Farid N.

455

Statistical Estimation of LeakageInduced Power Grid Voltage Drop Considering WithinDie Process Variations #  

E-Print Network [OSTI]

Statistical Estimation of Leakage­Induced Power Grid Voltage Drop Considering Within­Die Process the power grid, the grid develops large voltage drops, which is an unavoidable background level of noise on the grid. We develop techniques for estimation of the statistics of the leakage­induced power grid voltage

Najm, Farid N.

456

Stationary IPA Estimates for Non-Smooth G/G/1/ Functionals via Palm Inversion and  

E-Print Network [OSTI]

Stationary IPA Estimates for Non-Smooth G/G/1/ Functionals via Palm Inversion and Level, the derivative of J with respect to . To this end, we use Infinitesimal Perturbation Analysis (IPA), a method on IPA. Alternative methods have been used to estimate derivatives, namely Smooth Perturbation Analysis

Paris-Sud XI, Université de

457

SunShot Initiative: National Laboratory Concentrating Solar Power Research  

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

National Laboratory Concentrating National Laboratory Concentrating Solar Power Research to someone by E-mail Share SunShot Initiative: National Laboratory Concentrating Solar Power Research on Facebook Tweet about SunShot Initiative: National Laboratory Concentrating Solar Power Research on Twitter Bookmark SunShot Initiative: National Laboratory Concentrating Solar Power Research on Google Bookmark SunShot Initiative: National Laboratory Concentrating Solar Power Research on Delicious Rank SunShot Initiative: National Laboratory Concentrating Solar Power Research on Digg Find More places to share SunShot Initiative: National Laboratory Concentrating Solar Power Research on AddThis.com... Concentrating Solar Power Systems Components Competitive Awards CSP Research & Development Thermal Storage

458

TEXIN2: a model for predicting carbon monoxide concentrations near intersections  

E-Print Network [OSTI]

of the Journal of the Air Pollution Control Association emitted along straight roadways, where traffic is wel 1-def ined and flows uniformly at constant speeds. This scenario is extremely inap- propriate for intersections. A simple conversion from straight... are presented in Chapter V. CHAPTER II LITERATURE REVIEW The task of modeling pollutant concentrations near intersections has traditionally been approached by first enlisting an emissions model to estimate a composite emission rate for vehicular traffic...

Korpics, J. J

1985-01-01T23:59:59.000Z

459

Derived Annual Estimates of Manufacturing Energy Consumption, 1974-1988  

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

Manufacturing > Derived Annual Estimates - Executive Summary Manufacturing > Derived Annual Estimates - Executive Summary Derived Annual Estimates of Manufacturing Energy Consumption, 1974-1988 Figure showing Derived Estimates Executive Summary This report presents a complete series of annual estimates of purchased energy used by the manufacturing sector of the U.S. economy, for the years 1974 to 1988. These estimates interpolate over gaps in the actual data collections, by deriving estimates for the missing years 1982-84 and 1986-87. For the purposes of this report, "purchased" energy is energy brought from offsite for use at manufacturing establishments, whether the energy is purchased from an energy vendor or procured from some other source. The actual data on purchased energy comes from two sources, the U.S. Department of Commerce Bureau of the Census's Annual Survey of Manufactures (ASM) and EIA's Manufacturing Energy Consumption Survey (MECS). The ASM provides annual estimates for the years 1974 to 1981. However, in 1982 (and subsequent years) the scope of the ASM energy data was reduced to collect only electricity consumption and expenditures and total expenditures for other purchased energy. In 1985, EIA initiated the triennial MECS collecting complete energy data. The series equivalent to the ASM is referred to in the MECS as "offsite-produced fuels." The completed annual series for 1974 to 1988 developed in this report links the ASM and MECS "offsite" series, estimating for the missing years. Estimates are provided for the manufacturing sector as a whole and at the two-digit Standard Industrial Classification (SIC) level for total energy consumption and for the consumption of individual fuels. There are no direct sources of data for the missing years (1982-1984 and 1986-1987). To derive consumption estimates, a comparison was made between the ASM, MECS, and other economic series to see whether there were any good predictors for the missing data. Various estimation schemes were analyzed to fill in the gaps in data after 1981 by trying to match known data for the 1974 to 1981 period.

460

NREL: Concentrating Solar Power Research - Projects  

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

Projects Projects NREL's concentrating solar power (CSP) projects focus on components R&D and systems analysis related to power tower and parabolic trough technologies. We support the U.S. Department of Energy (DOE) in its CSP deployment efforts in the following areas: Collectors Receivers Power block Thermal energy storage Analysis. NREL received funding from DOE for concentrating solar power research projects. Through a competitive process, NREL was selected to lead the following projects: Novel Components to Overcome Existing Barriers-Particle Receiver Integrated with a Fluidized Bed Thermodynamic Cycle to Revolutionize CSP Systems-10-Megawatt Supercritical Carbon Dioxide (s-CO2) Turbine Test Nanomaterials for thermal energy storage in CSP plants In addition to these efforts, NREL is also a key partner on two other

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461

ORIGINAL ARTICLE Radionuclide Concentrations in Benthic Invertebrates  

Office of Legacy Management (LM)

Environ Monit Assess (2007) 128:329-341 Environ Monit Assess (2007) 128:329-341 DO1 10.1007/~10661-006-93 I 6 4 ORIGINAL ARTICLE - Radionuclide Concentrations in Benthic Invertebrates from Amchitka and Kiska Islands in the Aleutian Chain, Alaska Joanna Burger Michael Gochfeld Stephen C. Jewett Received: 8 March 2006 /Accepted: 8 May 2006 1 Published online: 21 October 2006 0 Springer Science + Business Media B.V. 2006 Abstract Concentrations of 13 radionuclides 1291, 60co, 1 5 2 ~ ~ , 9 0 s r , 9 9 ~ ~ , 2 4 1 ~ ~ , 238pu, 239249pu, 2 3 4 ~ , 2 3 5 ~ , 236U, 2 3 8 ~ were examined in seven species of invertebrates from Amchitka and Kiska Islands, in the Aleutian Chain of Alaska, using gamma spectroscopy, inductively coupled plasma mass spectroscopy, and alpha spectroscopy. Amchitka Island was the site of three underground nuclear test

462

NREL: Concentrating Solar Power Research - Partnerships  

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

Partnerships Partnerships NREL maintains partnerships to advance concentrating solar power research, development, and deployment efforts. Currently, NREL works with Sandia National Laboratories in Albuquerque, New Mexico, through SunLab-a partnership developed by the U.S. Department of Energy to administer its concentrating solar power R&D and analysis activities. SolarPACES Solar Power and Chemical Energy Systems (SolarPACES), an international program of the International Energy Agency, furthers collaborative development, testing, and marketing of CSP plants. NREL represents the U.S. activities and serves on various committees in SolarPACES, which now has 13 members: Algeria, Australia, Egypt, the European Commission, France, Germany, Israel, Mexico, South Africa, South Korea, Spain, Switzerland, and

463

Cast Stone Formulation At Higher Sodium Concentrations  

SciTech Connect (OSTI)

A low temperature waste form known as Cast Stone is being considered to provide supplemental Low Activity Waste (LAW) immobilization capacity for the Hanford site. Formulation of Cast Stone at high sodium concentrations is of interest since a significant reduction in the necessary volume of Cast Stone and subsequent disposal costs could be achieved if an acceptable waste form can be produced with a high sodium molarity salt solution combined with a high water to premix (or dry blend) ratio. The objectives of this study were to evaluate the factors involved with increasing the sodium concentration in Cast Stone, including production and performance properties and the retention and release of specific components of interest. Three factors were identified for the experimental matrix: the concentration of sodium in the simulated salt solution, the water to premix ratio, and the blast furnace slag portion of the premix. The salt solution simulants used in this study were formulated to represent the overall average waste composition. The cement, blast furnace slag, and fly ash were sourced from a supplier in the Hanford area in order to be representative. The test mixes were prepared in the laboratory and fresh properties were measured. Fresh density increased with increasing sodium molarity and with decreasing water to premix ratio, as expected given the individual densities of these components. Rheology measurements showed that all of the test mixes produced very fluid slurries. The fresh density and rheology data are of potential value in designing a future Cast Stone production facility. Standing water and density gradient testing showed that settling is not of particular concern for the high sodium compositions studied. Heat of hydration measurements may provide some insight into the reactions that occur within the test mixes, which may in turn be related to the properties and performance of the waste form. These measurements showed that increased sodium concentration in the salt solution reduced the time to peak heat flow, and reducing the amount of slag in the premix increased the time to peak heat flow. These observations may help to describe some of the cured properties of the samples, in particular the differences in compressive strength observed after 28 and 90 days of curing. Samples were cured for at least 28 days at ambient temperature in the laboratory prior to cured properties analyses. The low activity waste form for disposal at the Hanford Site is required to have a compressive strength of at least 500 psi. After 28 days of curing, several of the test mixes had mean compressive strengths that were below the 500 psi requirement. Higher sodium concentrations and higher water to premix ratios led to reduced compressive strength. Higher fly ash concentrations decreased the compressive strength after 28 days of curing. This may be explained in that the cementitious phases matured more quickly in the mixes with higher concentrations of slag, as evidenced by the data for the time to peak heat generation. All of the test mixes exhibited higher mean compressive strengths after 90 days of curing, with only one composition having a mean compressive strength of less than 500 psi. Leachability indices were determined for the test mixes for contaminants of interest. The leaching performance of the mixes evaluated in this study was not particularly sensitive to the factors used in the experimental design. This may be beneficial in demonstrating that the performance of the waste form is robust with respect to changes in the mix composition. The results of this study demonstrate the potential to achieve significantly higher waste loadings in Cast Stone and other low temperature, cementitious waste forms. Additional work is needed to elucidate the hydration mechanisms occurring in Cast Stone formulated with highly concentrated salt solutions since these reactions are responsible for determining the performance of the cured waste form. The thermal analyses completed in this study provide some preliminary insight, although the l

Fox, K. M.; Roberts, K. A.; Edwards, T. B.

2014-02-28T23:59:59.000Z

464

High-efficiency silicon concentrator cell commercialization  

SciTech Connect (OSTI)

This report summarizes the first phase of a forty-one month program to develop a commercial, high-efficiency concentrator solar cell and facility for manufacturing it. The period covered is November 1, 1990 to December 31, 1991. This is a joint program between the Electric Power Research Institute (EPRI) and Sandia National Laboratories. (This report is also published by EPRI as EPRI report number TR-102035.) During the first year of the program, SunPower accomplished the following major objectives: (1) a new solar cell fabrication facility, which is called the Cell Pilot Line (CPL), (2) a baseline concentrator cell process has been developed, and (3) a cell testing facility has been completed. Initial cell efficiencies are about 23% for the baseline process. The long-range goal is to improve this efficiency to 27%.

Sinton, R.A.; Swanson, R.M. [SunPower Corp., Sunnyvale, CA (US)

1993-05-01T23:59:59.000Z

465

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

466

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

467

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

468

Ozone concentrations in El Paso, Texas  

SciTech Connect (OSTI)

El Paso, Texas may have a problem in meeting ambient air standards due to influx of pollutants from foreign sources. Cd. Juarez, Chihuahua, and Fort Bliss abut the city and are areas over which the Texas Air Control Board (TACB) has little or no jurisdiction. The Board maintains two Continuous Air Monitoring Stations (CAM) in El Paso. Ozone, nitric oxide, and nitrogen dioxide data were obtained from these stations. If the EPA Empirical Kinetic Model is used for El Paso, reducing NMHC concentrations may increase rather than decrease O/sub 3/ concentrations. The Texas State Implementation Plan, while not based on Empirical Kinetic Modeling, calls for a reduction of 18% in NMHC. However, 31% of all NMHC in El Paso arise from sources over which Texas had little (a federal military reservation) or no (Cd. Juarez) jurisdiction. It appears the TACB is correct in believing the SIP for O/sub 3/ may not bring El Paso into compliance. (JMT)

Crocker, J.E. (Texas Air Control Board, Austin); Applegate, H.G.

1983-02-01T23:59:59.000Z

469

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

470

Concentrating Solar Power: Energy from Mirrors  

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

Mirror mirror on the wall, what's the Mirror mirror on the wall, what's the greatest energy source of all? The sun. Enough energy from the sun falls on the Earth everyday to power our homes and businesses for almost 30 years. Yet we've only just begun to tap its potential. You may have heard about solar electric power to light homes or solar thermal power used to heat water, but did you know there is such a thing as solar thermal-electric power? Electric utility companies are using mirrors to concentrate heat from the sun to produce environmentally friendly electricity for cities, especially in the southwestern United States. The southwestern United States is focus- ing on concentrating solar energy because it's one of the world's best areas for sun- light. The Southwest receives up to twice the sunlight as other regions in the coun-

471

Photovoltaic concentrator assembly with optically active cover  

DOE Patents [OSTI]

A photovoltaic concentrator assembly that includes a housing that defines an internal volume and includes a rim, wherein the rim defines an opening into the internal volume, a photovoltaic cell positioned in the internal volume, and an optical element that includes an optically active body and a flange extending outward from the body, wherein the flange is sealingly engaged with the rim of the housing to enclose the internal volume.

Plesniak, Adam P

2014-01-21T23:59:59.000Z

472

Material for a luminescent solar concentrator  

DOE Patents [OSTI]

A material for use in a luminescent solar concentrator, formed by ceramitizing the luminescent ion Cr/sup 3 +/ with a transparent ceramic glass containing mullite. The resultant material has tiny Cr/sup 3 +/-bearing crystallites dispersed uniformly through an amorphous glass. The invention combines the high luminescent efficiency of Cr/sup 3 +/ in the crystalline phase with the practical and economical advantages of glass technology.

Andrews, L.J.

1984-01-01T23:59:59.000Z

473

Development of a prototype lignin concentration sensor  

SciTech Connect (OSTI)

The US Department of Energy, Office of Industrial Technologies, is sponsoring a research and development program for the development of a real-time, in-situ sensor to measure the concentration of lignin in wood pulp. The program is composed of phase I showing feasibility which is now complete, phase II for development and testing of a Field Prototype, in progress, Phase III commercialization. Phase I work (funded entirely by B&W) demonstrated a correlation between the fluorescence intensity and lignin concentration (as measured by TAPPI procedure, T 236 hm-85 Kappa Number of Pulp) for undiluted wood pulp samples. In Phase II, a laboratory test program directed at characterizing the fluorescence of wood pulp has been conducted as a prelude to the design of a prototype sensor. The current report summarizes the testing completed in Phase I and documents the Phase II laboratory testing completed through December 1991. Future Phase II efforts include additional laboratory testing, design and fabrication of a prototype sensor, and field testing of the prototype sensor. Phase III of the program will concentrate on the incorporation of the sensor into a control system and commercialization of the sensor.

Malito, M.L.; Jeffers, L.A.

1993-01-01T23:59:59.000Z

474

Development of a prototype lignin concentration sensor  

SciTech Connect (OSTI)

The US Department of Energy, Office of Industrial Technologies, is sponsoring a research and development program for the development of a real-time, in-situ sensor to measure the concentration of lignin in wood pulp. The program is composed of phase I showing feasibility which is now complete, phase II for development and testing of a Field Prototype, in progress, Phase III commercialization. Phase I work (funded entirely by B W) demonstrated a correlation between the fluorescence intensity and lignin concentration (as measured by TAPPI procedure, T 236 hm-85 Kappa Number of Pulp) for undiluted wood pulp samples. In Phase II, a laboratory test program directed at characterizing the fluorescence of wood pulp has been conducted as a prelude to the design of a prototype sensor. The current report summarizes the testing completed in Phase I and documents the Phase II laboratory testing completed through December 1991. Future Phase II efforts include additional laboratory testing, design and fabrication of a prototype sensor, and field testing of the prototype sensor. Phase III of the program will concentrate on the incorporation of the sensor into a control system and commercialization of the sensor.

Malito, M.L.; Jeffers, L.A.

1993-01-01T23:59:59.000Z

475

Estimation of Groundwater Recharge at Pahute Mesa using the Chloride Mass-Balance Method  

SciTech Connect (OSTI)

Groundwater recharge on Pahute Mesa was estimated using the chloride mass-balance (CMB) method. This method relies on the conservative properties of chloride to trace its movement from the atmosphere as dry- and wet-deposition through the soil zone and ultimately to the saturated zone. Typically, the CMB method assumes no mixing of groundwater with different chloride concentrations; however, because groundwater is thought to flow into Pahute Mesa from valleys north of Pahute Mesa, groundwater flow rates (i.e., underflow) and chloride concentrations from Kawich Valley and Gold Flat were carefully considered. Precipitation was measured with bulk and tipping-bucket precipitation gauges installed for this study at six sites on Pahute Mesa. These data, along with historical precipitation amounts from gauges on Pahute Mesa and estimates from the PRISM model, were evaluated to estimate mean annual precipitation. Chloride deposition from the atmosphere was estimated by analyzing quarterly samples of wet- and dry-deposition for chloride in the bulk gauges and evaluating chloride wet-deposition amounts measured at other locations by the National Atmospheric Deposition Program. Mean chloride concentrations in groundwater were estimated using data from the UGTA Geochemistry Database, data from other reports, and data from samples collected from emplacement boreholes for this study. Calculations were conducted assuming both no underflow and underflow from Kawich Valley and Gold Flat. Model results estimate recharge to be 30 mm/yr with a standard deviation of 18 mm/yr on Pahute Mesa, for elevations >1800 m amsl. These estimates assume Pahute Mesa recharge mixes completely with underflow from Kawich Valley and Gold Flat. The model assumes that precipitation, chloride concentration in bulk deposition, underflow and its chloride concentration, have been constant over the length of time of recharge.

Cooper, Clay A [DRI] [DRI; Hershey, Ronald L [DRI] [DRI; Healey, John M [DRI] [DRI; Lyles, Brad F [DRI] [DRI

2013-07-01T23:59:59.000Z

476

EM Corporate Performance Metrics, Site Level  

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

Site Level Site Level July, 2013 Site Performance Measure Unit Lifecycle Total Estimate Pre-2013 Lifecycle Values 2013 Target 2014 Target Ames Laboratory Geographic Sites Eliminated Number completed 1 1 1 1 Argonne National Laboratory-East TRU-RH Cubic Meters 22 22 22 22 Argonne National Laboratory-East TRU-CH Cubic Meters 21.4 21.4 21 21 Argonne National Laboratory-East Radioactive Facility Completions Number of Facilities 80 80 80 80 Argonne National Laboratory-East Geographic Sites Eliminated Number completed 1 1 1 1 Argonne National Laboratory-East Remediation Complete Number of Release Sites 443 443 443 443 Brookhaven National Laboratory eU packaged for disposition Number of Containers 0 0 0 0 Brookhaven National Laboratory Nuclear Facility Completions Number of Facilities 2 2 2 2

477

Pinning down energy levels | EMSL  

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

Pinning down energy levels Pinning down energy levels Scientists discover the energy differences behind green fluorescent protein's glow The research begins with (a) the model GFP...

478

Calculating concentration index with repetitive values of indicators of economic welfare  

Science Journals Connector (OSTI)

Repetitive values of the ranking indicators of economic welfare are often introduced due to incidental ties or censoring in the welfare variable, or the categorical nature of welfare variables used in numerous national surveys. In calculating concentration index (CI), assigning different fractional ranks to observations that have same values of the welfare measure leads to unstable and inconsistent CI estimates when the welfare variable is categorical or censored. In this paper, we establish an interval within which the CI estimates lie, and propose a solution, which is an extension of (Kakwani, N.C., Wagstaff, A., van Doorslaer, E., 1997. Socioeconomic inequalities in health: measurement, computation, and statistical inference. Journal of Econometrics 77, 87–103), for consistent and replicable estimates of CI when there are a substantial number of ties of the welfare indicator.

Zhuo Chen; Kakoli Roy

2009-01-01T23:59:59.000Z

479

Origins of low resistivity and Ge donor level in Ge ion-implanted ZnO bulk single crystals  

SciTech Connect (OSTI)

The energy level of Ge in Ge-ion implanted ZnO single crystals is studied by Hall-effect and photoluminescence (PL) methods. The variations in resistivity from ?10{sup 3} ?cm for un-implanted samples to ?10{sup ?2} ?cm for as-implanted ones are observed. The resistivity is further decreased to ?10{sup ?3} ?cm by annealing. The origins of the low resistivity are attributed to both the zinc interstitial (Zn{sub i}) related defects and the electrical activated Ge donor. An activation energy of Ge donors estimated from the temperature dependence of carrier concentration is 102 meV. In PL studies, the new peak at 372 nm (3.33 eV) related to the Ge donor is observed in 1000 °C annealed samples.

Kamioka, K.; Oga, T.; Izawa, Y.; Kuriyama, K. [College of Engineering and Research Center of Ion Beam Technology, Hosei University Koganei, Tokyo 184-8584 (Japan); Kushida, K. [Departments of Arts and Sciences, Osaka Kyoiku University Kashiwara, Osaka 582-8582 (Japan)

2013-12-04T23:59:59.000Z

480

NREL: Concentrating Solar Power Research - Collector R&D  

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

Thermal Energy Storage R&D Thermal Energy Storage R&D Featured Resource Learn more about NREL's capabilities in thermal storage and advanced heat transfer fluids. Thermal energy storage (TES) research at NREL focuses on reducing the costs of thermal storage and electricity from concentrating solar power (CSP) plants. NREL's TES effort contributes to these goals through materials and systems development, analysis, and modeling. CSP systems may include TES-a means of storing thermal energy for later use-to generate electricity any time when it is most needed and valuable, whether during the day, night, or cloudy intervals. Opportunities and Potential Impact TES usually reduces the levelized cost of electricity (LCOE) compared to a system without storage because of better utilization of the power block.

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481

Low-Cost, Lightweight Solar Concentrator | Department of Energy  

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

Documents & Publications Low-Cost, Lightweight Solar Concentrators - FY13 Q1 Low-Cost Light Weigh Thin Film Solar Concentrators Low-Cost, Lightweight Solar Concentrators FY13...

482

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

483

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

484

Company Level Imports  

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

All Petroleum & Other Liquids Reports All Petroleum & Other Liquids Reports Company Level Imports With Data for September 2013 | Release Date: November 27, 2013 | Next Release Date: December 30, 2013 | XLS Previous Issues Month: September 2013 August 2013 July 2013 June 2013 May 2013 April 2013 March 2013 February 2013 January 2013 prior issues Go September 2013 Import Highlights Monthly data on the origins of crude oil imports in September 2013 has been released and it shows that two countries exported more than 1 million barrels per day to the United States (see table below). The top five exporting countries accounted for 75 percent of United States crude oil imports in September while the top ten sources accounted for approximately 92 percent of all U.S. crude oil imports. The top five sources of US crude

485

Liquid level detector  

DOE Patents [OSTI]

A liquid level detector for conductive liquids for vertical installation in a tank, the detector having a probe positioned within a sheath and insulated therefrom by a seal so that the tip of the probe extends proximate to but not below the lower end of the sheath, the lower end terminating in a rim that is provided with notches, said lower end being tapered, the taper and notches preventing debris collection and bubble formation, said lower end when contacting liquid as it rises will form an airtight cavity defined by the liquid, the interior sheath wall, and the seal, the compression of air in the cavity preventing liquid from further entry into the sheath and contact with the seal. As a result, the liquid cannot deposit a film to form an electrical bridge across the seal.

Tshishiku, Eugene M. (Augusta, GA)

2011-08-09T23:59:59.000Z

486

Level III baseline risk evaluation for Building 3505 at Oak Ridge National Laboratory, Oak Ridge, Tennessee  

SciTech Connect (OSTI)

The Level III Baseline Risk Evaluation (BRE) for Building 3505, the ORNL Metal Recovery Facility, provides an analysis of the potential for adverse health effects, current or future, associated with the presence of hazardous substances in the building. The Metal Recovery Facility was used from 1952 through 1960 to process large quantities of radioactive material using the PUREX process for the recovery of uranium-238, plutonium-239, neptunium-237, and americium-241. The facility consists of seven process cells (A through G), a canal, a dissolver room, a dissolver pit, an office, locker room, storage area, control room, electrical gallery, shop, and makeup area. The cells were used to house the nuclear fuel reprocessing equipment, and the canal was constructed to be used as a water-shielded transfer canal. Currently, there are no known releases of radioactive contaminants from Building 3505. To perform the BRE, historical radiological survey data were used to estimate the concentration of alpha- and beta/gamma emitting radionuclides in the various cells, rooms, and other areas in Building 3505. Data from smear surveys were used to estimate the amount of transferable contamination (to which receptors can be exposed via inhalation and ingestion), and data from probe surveys were used to estimate the amount of both fixed and transferable contamination (from which receptors can receive external exposure). Two land use scenarios, current and future, and their subsequent exposure scenarios were explored in the BRE. Under the current land use scenario, two exposure scenarios were evaluated. The first was a worst-case industrial exposure scenario in which the receptor is a maintenance worker who works 8 hours/day, 350 days/year in the building for 25 years. In the second, more realistic exposure scenario, the receptor is a surveillance and maintenance (S&M) worker who spends two 8-hour days/year in the building for 25 years.

Mostella, W.B. Jr.

1994-12-01T23:59:59.000Z

487

Estimation of capacity credit for wind power in Libya  

Science Journals Connector (OSTI)

This paper presents the results of a study that evaluated the wind potential at the central region of the Libyan coast and estimated the capacity credit of wind power in the national network. Several sites were investigated to choose the most suitable sites for wind farm establishment. Different sizes of Wind Energy Converter Systems (WECSs) were selected to estimate the wind potential. The sizes were selected to satisfy present and future market development as well as to satisfy technical, economic, and environmental aspects. Wind data from three meteorological stations in the proposed region were used in assessing the wind potential. The wind potential was estimated according to the characteristics of the sites and power curves of the WECSs, and considering certain assumptions. The results showed that the capacity credit varied from about 20% to 50%, depending on penetration levels of wind power, for the assumptions made in this study.

Wedad B. El-Osta; Mohamed Ali Ekhlat; Amal S. Yagoub; Yousef Khalifa; E. Borass

2005-01-01T23:59:59.000Z

488

Measurement enhancement for state estimation  

E-Print Network [OSTI]

, the control center receives the system-wide device information and measurement data through the Supervisory Control and Data Acquisition (SCADA) system. However, the information and measurement data provided by SCADA may not always be accurate and reliable... estimation use the measurement data from SCADA system, the status information about the circuit breakers (CB), switches and transformer taps, as well as the parameters of transmission lines, transformers, shunts capacitors/reactors and other devices...

Chen, Jian

2009-05-15T23:59:59.000Z

489

Solar sky radiation estimation techniques  

SciTech Connect (OSTI)

Empirical correlations suggested by various authors, for estimating monthly mean daily diffuse irradiation, are compared statistically to test their applicability to the southern African region. The correlations are compared by calculating root mean square error, mean bias error and mean percentage error. The correlations suggested by Gopinathan and Gladius Lewis are found to be most accurate for the southern African region. Equations suggested by Iqbal give poor results and cannot be employed for the region.

Gopinathan, K.K. (National Univ. of Lesotho, Roma (South Africa))

1992-07-01T23:59:59.000Z

490

Experimenting with concentrated sunlight using the DLR solar furnace  

SciTech Connect (OSTI)

The high flux solar furnace that is operated by the Deutsche Forschungsanstalt fuer Luft- und Raumfahrt (DLR) at Cologne was inaugurated in June 1994 and we are now able to look back onto one year of successful operation. The solar furnace project was founded by the government of the State Northrhine Westfalia within the Study Group AG Solar. The optical design is a two-stage off-axis configuration which uses a flat 52 m{sup 2} heliostat and a concentrator composed of 147 spherical mirror facets. The heliostat redirects the solar light onto the concentrator which focuses the beam out of the optical axis of the system into the laboratory building. At high insolation levels (>800W/m{sup 2}) it is possible to collect a total power of 20 kW with peak flux densities of 4 MW/m{sup 2}. Sixteen different experiment campaigns were carried out during this first year of operation. The main research fields for these experiments were material science, component development and solar chemistry. The furnace also has its own research program leading to develop sophisticated measurement techniques like remote infrared temperature sensing and flux mapping. Another future goal to be realized within the next five years is the improvement of the performance of the furnace itself. 6 refs., 9 figs., 1 tab.

Neumann, A.; Groer, U. [Deutsche Forschungsanstalt fuer Luft- und Raumfahrt Linder Hoehe, Koeln (Germany)] [Deutsche Forschungsanstalt fuer Luft- und Raumfahrt Linder Hoehe, Koeln (Germany)

1996-10-01T23:59:59.000Z

491

Stabilizing effect of small concentrations of PAMAM dendrimers at the insulin aggregation  

Science Journals Connector (OSTI)

Abstract Dendrimers’ action on proteins and peptides has a dual and controversial character. On one hand, they dissolve prion protein and amyloid fibrils aggregates, which are otherwise only soluble in solvents containing both detergents and high denaturant concentrations. On the other hand they are able to destabilize proteins in generation dependent manner. In present work we estimated the influence of small concentrations (up to 1.4 ?g/ml) of cationic, neutral and anionic poly(amidoamine) dendrimers of 3rd and 4th generations on dithiotreitol induced aggregation of insulin. It was found that cationic dendrimers decreased the insulin aggregation, while anionic and neutral ones did not. At the same time, destabilizing effect of dendrimers on insulin structure was not observed. The conclusion was made that small concentrations of dendrimers can be applied to prevent or decrease the formation of misfolded structures of protein.

Olga Nowacka; Dzmitry Shcharbin; Barbara Klajnert-Maculewicz; Maria Bryszewska

2014-01-01T23:59:59.000Z

492

Efficiency and concentration ratio measurements of fluorescent solar concentrators using a xenon measurement system  

Science Journals Connector (OSTI)

An indoor test stand for fluorescent planar concentrator–collectors (FPC) with a 1.6-kW xenon light source, irradiating a rectangular triangle (active area 400 cm2) with 82...

Heidler, K

1981-01-01T23:59:59.000Z

493

Life-Cycle Cost Study for a Low-Level Radioactive Waste Disposal Facility in Texas  

SciTech Connect (OSTI)

This report documents the life-cycle cost estimates for a proposed low-level radioactive waste disposal facility near Sierra Blanca, Texas. The work was requested by the Texas Low-Level Radioactive Waste Disposal Authority and performed by the National Low-Level Waste Management Program with the assistance of Rogers and Associates Engineering Corporation.

B. C. Rogers; P. L. Walter (Rogers and Associates Engineering Corporation); R. D. Baird

1999-08-01T23:59:59.000Z

494

Sea level rise implications on shoreline changes: expectations from a retrospective analysis  

E-Print Network [OSTI]

Sea level rise implications on shoreline changes: expectations from a retrospective analysis Gonéri de Recherche et de Formation en Calcul Scientifique (Cerfacs) Sea level rise is a major consequence level rise is up to 3 times the global mean rate (estimated as 3.5 mm per year since the early 1990s

Paris-Sud XI, Université de

495

Project Profile: Low-Cost, Lightweight Solar Concentrators |...  

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

Cost, Lightweight Solar Concentrators Project Profile: Low-Cost, Lightweight Solar Concentrators JPL logo The Jet Propulsion Laboratory (JPL), with funding from the 2012 SunShot...

496

Category:Concentrating Solar Power | Open Energy Information  

Open Energy Info (EERE)

This is the Concentrating Solar Power category. This category currently contains no pages or media. Retrieved from "http:en.openei.orgwindex.php?titleCategory:ConcentratingSo...

497

Concentrating Solar Power Facilities and Solar Potential | Department...  

Office of Environmental Management (EM)

Facilities and Solar Potential Concentrating Solar Power Facilities and Solar Potential Concentrating Solar Power Facilities and CSP Energy Potential Gradient Click icons to filter...

498

World's Largest Concentrating Solar Power Plant Opens in California...  

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

World's Largest Concentrating Solar Power Plant Opens in California World's Largest Concentrating Solar Power Plant Opens in California February 19, 2014 - 12:00am Addthis Ivanpah,...

499

Influence of Electron Donor/Acceptor Concentrations on Hydrous...  

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

Influence of Electron DonorAcceptor Concentrations on Hydrous Ferric Oxide (HFO) Bioreduction. Influence of Electron DonorAcceptor Concentrations on Hydrous Ferric Oxide (HFO)...

500

The Measurement of the Moisture Concentration of Selected Test...  

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

The Measurement of the Moisture Concentration of Selected Test Model Ore Zones (April 1977) The Measurement of the Moisture Concentration of Selected Test Model Ore Zones (April...