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Note: This page contains sample records for the topic "relative humidity rh" from the National Library of EnergyBeta (NLEBeta).
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1

relative humidity | OpenEI  

Open Energy Info (EERE)

relative humidity relative humidity Dataset Summary Description (Abstract): Relative Humidity at 10 m Above The Surface Of The Earth (%)NASA Surface meteorology and Solar Energy (SSE) Release 6.0 Data Set (Nov 2007)22-year Monthly & Annual Average (July 1983 - June 2005)Parameter: Relative Humidity at 10 m Above The Surface Of The Earth (%)Internet: http://eosweb.larc.nasa.gov/sse/Note 1: SSE Methodology & Accuracy sections onlineNote 2: Lat/Lon values indicate the lower left corner of a 1x1 degree region. Negative values are south and west; Source U.S. National Aeronautics and Space Administration (NASA), Surface meteorology and Solar Energy (SSE) Date Released March 31st, 2009 (5 years ago) Date Updated Unknown Keywords climate GIS NASA relative humidity SWERA UNEP

2

An Analytical Model for Tropical Relative Humidity  

Science Journals Connector (OSTI)

An analytical model is derived for tropical relative humidity using only the Clausius–Clapeyron relation, hydrostatic balance, and a bulk-plume water budget. This theory is constructed for radiative–convective equilibrium and compared against a ...

David M. Romps

2014-10-01T23:59:59.000Z

3

Influence of air humidity and lighting period on growth, vase life and water relations of 14 rose cultivars  

Science Journals Connector (OSTI)

The influence of three relative air humidities (RH) (75, 83 and 91% RH corresponding to vapour pressure deficits of 550, 390 and 200 Pa, respectively) and two lighting periods (18 and 24 h day?1) on growth, vase life and leaf–water relations was studied in 14 rose cultivars. Air humidity had no effect on the number of flowering shoots while shoot fresh weight decreased by 11% as a mean of all cultivars when RH was raised from 83 to 91%. An increase in the lighting period (LP) enhanced the number of flowering shoots by 12% and fresh weight per shoot by 5%. A rise in air humidity from 75 to 91% RH reduced the vase life by 30% (varying from 12 to 75% in the different cultivars) at 18 h LP and by 44% (varying from 31 to 78% in the different cultivars) at 24 h LP, while an increase in LP reduced vase life by 23 and 38% at 75 and 91% RH, respectively. The magnitude of the responses differed significantly among cultivars. Generally, a close relationship was found between reduction in vase life and rate of water loss of detached leaves from all cultivars. It is concluded that high air humidity and continuous lighting in general should be avoided in the production of greenhouse roses.

Leiv M Mortensen; Hans R Gislerød

1999-01-01T23:59:59.000Z

4

Posters A Comparison of Model-Simulated Relative Humidity with...  

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

Posters A Comparison of Model-Simulated Relative Humidity with Satellite-Derived Cloudiness R. J. Alliss and S. Raman Department of Marine, Earth and Atmospheric Sciences North...

5

The Temperature and Relative Humidity Control in Cushing Library  

E-Print Network (OSTI)

Cushing Library located on TAMU campus is a special building, which needs precise temperature and relative humidity control, because it stores a number of rare collections and memorial books. There are five air-handling units (AHUs) serving...

Liu, C.; Deng, S.; Claridge, D. E.; Turner, W. D.; Bruner, H., Jr.

2002-01-01T23:59:59.000Z

6

Climate: monthly and annual average relative humidity GIS data at  

Open Energy Info (EERE)

relative humidity GIS data at relative humidity GIS data at one-degree resolution of the World from NASA/SSE Dataset Summary Description (Abstract): Relative Humidity at 10 m Above The Surface Of The Earth (%)NASA Surface meteorology and Solar Energy (SSE) Release 6.0 Data Set (Nov 2007)22-year Monthly & Annual Average (July 1983 - June 2005)Parameter: Relative Humidity at 10 m Above The Surface Of The Earth (%)Internet: http://eosweb.larc.nasa.gov/sse/Note 1: SSE Methodology & Accuracy sections onlineNote 2: Lat/Lon values indicate the lower left corner of a 1x1 degree region. Negative values are south and west; positive values are north and east. Boundaries of the -90/-180 region are -90 to -89 (south) and -180 to -179 (west). The last region, 89/180, is bounded by 89 to 90 (north) and 179 to 180 (east). The mid-point of

7

Humidity requirements in WSCF Laboratories  

SciTech Connect

The purpose of this paper is to develop and document a position on Relative Humidity (RH) requirements in the WSCF Laboratories. A current survey of equipment vendors for Organic, Inorganic and Radiochemical laboratories indicate that 25% - 80% relative humidity may meet the environmental requirements for safe operation and protection of all the laboratory equipment.

Evans, R.A.

1994-10-01T23:59:59.000Z

8

A logical extension of the ASTM Standard E96 to determine the dependence of water vapor transmission on relative humidity  

SciTech Connect

It is well known that the water vapor transmission properties of hygroscopic building materials depend on the local relative humidities(rh). Traditionally, the ASTM Standard E96 specifies only two conditions of rh. The dry cup method in the standard corresponds to a mean rh of 25% and the wet cup to 75%. This information is not enough to describe the behavior of the material through the entire range of rh. European Standards have already proposed an extension of the existing standard to address this issue. ASTM standard should follow this change. A logical extension of the E96 standard to include the effect of rh on water vapor transmission properties has been proposed and is being discussed by one of the C16 Committee Task Groups. This paper presents the application of the proposed extension to several common building materials. The details include the operating principles of a constant temperature-rh chamber and the effects on the test results, of the vapor resistance offered by still air inside the cup, the surface resistances and buoyancy. The experimental data were used to critically assess the above effects. The data as well as the analyses of the data are expected to provide guidance to refine the existing ASTM Standard.

Lackey, J.C.; Marchand, R.G.; Kumaran, M.K. [National Research Council of Canada, Ottawa, Ontario (Canada). Inst. for Research in Construction

1997-11-01T23:59:59.000Z

9

Influence of relative humidity and loading frequency on the PA6.6 thermomechanical cyclic behavior: Part II. Energy aspects  

Science Journals Connector (OSTI)

Abstract In this study, we investigated the influence of relative humidity (RH) and loading rate on the energy response of PA6.6 matrix specimens. The latter were subjected to oligocyclic tensile-tensile tests at 3 different RH and 2 loading rates. Infrared thermography was used to obtain a direct estimate of heat sources using the heat diffusion equation. Using the mechanical and thermal responses discussed in the first part of this work, complete energy rate balances were drawn up. In particular, the time courses of deformation, and dissipated and stored energy rates are discussed. The strong influence of the loading frequency and RH on the energy storage mechanisms is also highlighted.

Adil Benaarbia; André Chrysochoos; Gilles Robert

2015-01-01T23:59:59.000Z

10

Effects of Sodium Chloride Particles, Ozone, UV, and Relative Humidity on Atmospheric Corrosion of Silver  

E-Print Network (OSTI)

Effects of Sodium Chloride Particles, Ozone, UV, and Relative Humidity on Atmospheric Corrosion The corrosion of Ag contaminated with NaCl particles in gaseous environments containing humidity and ozone analyzed using a coulometric reduction technique. The atmospheric corrosion of Ag was greatly accelerated

11

Kinetics of size changes of individual Bacillus thuringiensis spores in response to changes in relative humidity  

Science Journals Connector (OSTI)

...changes in relative humidity 10.1073/pnas.232710999 Andrew J. Westphal P. Buford Price Terrance J. Leighton Katherine E. Wheeler * Space Sciences Laboratory and ‡ Department of Physics, University of California, Berkeley, CA 94720; and...

Andrew J. Westphal; P. Buford Price; Terrance J. Leighton; Katherine E. Wheeler

2003-01-01T23:59:59.000Z

12

Related Links on New Orleans and Hot-Humid Climates | Department of Energy  

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

New Orleans and Hot-Humid Climates New Orleans and Hot-Humid Climates Related Links on New Orleans and Hot-Humid Climates Below are related links to resources specifically for New Orleans, Louisiana, and other hot-humid climates on building with energy efficiency and renewable energy technologies. Learn more about deployment efforts in New Orleans. Building a Durable and Energy Efficient Home in Post-Katrina New Orleans This report from Building Science examines designing homes with key sustainability concepts, durability, and energy efficiency that can provide insurance to people in the event of a hurricane. Designing and Building Hurricane-Resistant Homes This article from the Consortium for Advanced Residential Buildings details a production builder's efforts to identify better wall systems to use in

13

A theoretical model for adsorption capacities of charcoal beds: I, Relative humidity effects  

SciTech Connect

Water vapor is the major interferent in the adsorption of other vapors from air when that air is passed through an activated charcoal bed. A limited amount of data (published and unpublished) is available on the magnitudes of capacity (or service life) reduction as a function of relative humidity (water vapor concentration) and preadsorbed water. A simple equilibrium model has been developed which quantitatively explains observed humidity effects and allows extrapolation of data to untested conditions. 9 refs., 4 figs., 2 tabs.

Wood, G.O.

1987-01-01T23:59:59.000Z

14

Relative Humidity in Limited Streamer Tubes for Stanford Linear Accelerator Center's BaBar Detector  

SciTech Connect

The BABAR Detector at the Stanford Linear Accelerator Center studies the decay of B mesons created in e{sup +}e{sup -} collisions. The outermost layer of the detector, used to detect muons and neutral hadrons created during this process, is being upgraded from Resistive Plate Chambers (RPCs) to Limited Streamer Tubes (LSTs). The standard-size LST tube consists of eight cells, where a silver-plated wire runs down the center of each. A large potential difference is placed between the wires and ground. Gas flows through a series of modules connected with tubing, typically four. LSTs must be carefully tested before installation, as it will be extremely difficult to repair any damage once installed in the detector. In the testing process, the count rate in most modules showed was stable and consistent with cosmic ray rate over an approximately 500 V operating range between 5400 to 5900 V. The count in some modules, however, was shown to unexpectedly spike near the operation point. In general, the modules through which the gas first flows did not show this problem, but those further along the gas chain were much more likely to do so. The suggestion was that this spike was due to higher humidity in the modules furthest from the fresh, dry inflowing gas, and that the water molecules in more humid modules were adversely affecting the modules' performance. This project studied the effect of humidity in the modules, using a small capacitive humidity sensor (Honeywell). The sensor provided a humidity-dependent output voltage, as well as a temperature measurement from a thermistor. A full-size hygrometer (Panametrics) was used for testing and calibrating the Honeywell sensors. First the relative humidity of the air was measured. For the full calibration, a special gas-mixing setup was used, where relative humidity of the LST gas mixture could be varied from almost dry to almost fully saturated. With the sensor calibrated, a set of sensors was used to measure humidity vs. time in the LSTs. The sensors were placed in two sets of LST modules, one gas line flowing through each set. These modules were tested for count rate v. voltage while simultaneously measuring relative humidity in each module. One set produced expected readings, while the other showed the spike in count rate. The relative humidity in the two sets of modules looked very similar, but it rose significantly for modules further along the gas chain.

Lang, M.I.; /MIT; Convery, M.; /SLAC; Menges, W.; /Queen Mary, U. of London

2005-12-15T23:59:59.000Z

15

Adaptive GPC Structures for Temperature and Relative Humidity Control of a Nonlinear  

E-Print Network (OSTI)

12 Adaptive GPC Structures for Temperature and Relative Humidity Control of a Nonlinear Passive Air and quality when outside air conditions are not favourable. Climate control accuracy may help optimize of climate-controlled greenhouses and growth chambers makes it possible to maintain high crop productivity

Boyer, Edmond

16

SPC Fire Weather Forecast Criteria Critical for temperature, wind, and relative humidity  

E-Print Network (OSTI)

the Energy Release Component (ERC) for fuel model G and 100 hr fuel moistures, which are available from: - Sustained winds 20 mph or greater (15 mph Florida) - Minimum relative humidity at or below regional thresholds (Fig. 1) - Temperatures above 50-60° F, depending on the season - Dry fuels (as defined below

17

Evaluation of Humidity Control Options in Hot-Humid Climate Homes (Fact Sheet)  

SciTech Connect

This technical highlight describes NREL research to analyze the indoor relative humidity in three home types in the hot-humid climate zone, and examine the impacts of various dehumidification equipment and controls. As the Building America program researches construction of homes that achieve greater source energy savings over typical mid-1990s construction, proper modeling of whole-house latent loads and operation of humidity control equipment has become a high priority. Long-term high relative humidity can cause health and durability problems in homes, particularly in a hot-humid climate. In this study, researchers at the National Renewable Energy Laboratory (NREL) used the latest EnergyPlus tool equipped with the moisture capacitance model to analyze the indoor relative humidity in three home types: a Building America high-performance home; a mid-1990s reference home; and a 2006 International Energy Conservation Code (IECC)-compliant home in hot-humid climate zones. They examined the impacts of various dehumidification equipment and controls on the high-performance home where the dehumidification equipment energy use can become a much larger portion of whole-house energy consumption. The research included a number of simulated cases: thermostat reset, A/C with energy recovery ventilator, heat exchanger assisted A/C, A/C with condenser reheat, A/C with desiccant wheel dehumidifier, A/C with DX dehumidifier, A/C with energy recovery ventilator, and DX dehumidifier. Space relative humidity, thermal comfort, and whole-house source energy consumption were compared for indoor relative humidity set points of 50%, 55%, and 60%. The study revealed why similar trends of high humidity were observed in all three homes regardless of energy efficiency, and why humidity problems are not necessarily unique in the high-performance home. Thermal comfort analysis indicated that occupants are unlikely to notice indoor humidity problems. The study confirmed that supplemental dehumidification is needed to maintain space relative humidity (RH) below 60% in a hot-humid climate home. Researchers also concluded that while all the active dehumidification options included in the study successfully controlled space relative humidity excursions, the increase in whole-house energy consumption was much more sensitive to the humidity set point than the chosen technology option. In the high-performance home, supplemental dehumidification equipment results in a significant source energy consumption penalty at 50% RH set point (12.6%-22.4%) compared to the consumption at 60% RH set point (1.5%-2.7%). At 50% and 55% RH set points, A/C with desiccant wheel dehumidifier and A/C with ERV and high-efficiency DX dehumidifier stand out as the two cases resulting in the smallest increase of source energy consumption. At an RH set point of 60%, all explicit dehumidification technologies result in similar insignificant increases in source energy consumption and thus are equally competitive.

Not Available

2011-12-01T23:59:59.000Z

18

Influence of high voltage atmospheric cold plasma process parameters and role of relative humidity on inactivation of Bacillus atrophaeus spores inside a sealed package  

Science Journals Connector (OSTI)

SummaryBackground Non-thermal plasma has received much attention for elimination of microbial contamination from a range of surfaces. Aim This study aimed to determine the effect of a range of dielectric barrier discharge high voltage atmospheric cold plasma (HVACP) parameters for inactivation of Bacillus atrophaeus spores inside a sealed package. Methods A sterile polystyrene Petri dish containing B. atrophaeus spore strip (spore population 2.3 × 106/strip i.e. 6.36 log10/strip) was placed in a sealed polypropylene container and was subjected to HVACP treatment. The HVACP discharge was generated between two aluminium plate electrodes using a high voltage of 70 kVRMS. The effects of process parameters, including treatment time, mode of exposure (direct/indirect), and working gas types, were evaluated. The influence of relative humidity on HVACP inactivation efficacy was also assessed. The inactivation efficacy was evaluated using colony counts. Optical absorption spectroscopy (OAS) was used to assess gas composition following HVACP exposure. Findings A strong effect of process parameters on inactivation was observed. Direct plasma exposure for 60 s resulted in ?6 log10 cycle reduction of spores in all gas types tested. However, indirect exposure for 60 s resulted in either 2.1 or 6.3 log10 cycle reduction of spores depending on gas types used for HVACP generation. The relative humidity (RH) was a critical factor in bacterial spore inactivation by HVACP, where a major role of plasma-generated species other than ozone was noted. Direct and indirect HVACP exposure for 60 s at 70% RH recorded 6.3 and 5.7 log10 cycle reduction of spores, respectively. Conclusion In summary, a strong influence of process parameters on spore inactivation was noted. Rapid in-package HVACP inactivation of bacterial spores within 30–60 s demonstrates the promising potential application for reduction of spores on medical devices and heat-sensitive materials.

S. Patil; T. Moiseev; N.N. Misra; P.J. Cullen; J.P. Mosnier; K.M. Keener; P. Bourke

2014-01-01T23:59:59.000Z

19

Lead Research and Development Activity for DOE's High Temperature, Low Relative Humidity Membrane Program (Topic 2)  

SciTech Connect

The Department of Energy’s High Temperature, Low Relative Humidity Membrane Program was begun in 2006 with the Florida Solar Energy Center (FSEC) as the lead organization. During the first three years of the program, FSEC was tasked with developing non-Nafion® proton exchange membranes with improved conductivity for fuel cells. Additionally, FSEC was responsible for developing protocols for the measurement of in-plane conductivity, providing conductivity measurements for the other funded teams, developing a method for through-plane conductivity and organizing and holding semiannual meetings of the High Temperature Membrane Working Group (HTMWG). The FSEC membrane research focused on the development of supported poly[perfluorosulfonic acid] (PFSA) – Teflon membranes and a hydrocarbon membrane, sulfonated poly(ether ether ketone). The fourth generation of the PFSA membrane (designated FSEC-4) came close to, but did not meet, the Go/No-Go milestone of 0.1 S/cm at 50% relative humidity at 120 °C. In-plane conductivity of membranes provided by the funded teams was measured and reported to the teams and DOE. Late in the third year of the program, DOE used this data and other factors to decide upon the teams to continue in the program. The teams that continued provided promising membranes to FSEC for development of membrane electrode assemblies (MEAs) that could be tested in an operating fuel cell. FSEC worked closely with each team to provide customized support. A logic flow chart was developed and discussed before MEA fabrication or any testing began. Of the five teams supported, by the end of the project, membranes from two of the teams were easily manufactured into MEAs and successfully characterized for performance. One of these teams exceeded performance targets, while the other requires further optimization. An additional team developed a membrane that shows great promise for significantly reducing membrane costs and increasing membrane lifetime.

James Fenton, PhD; Darlene Slattery, PhD; Nahid Mohajeri, PhD

2012-09-05T23:59:59.000Z

20

Variable temperature, relative humidity ,,0%100%..., and liquid neutron reflectometry sample cell suitable for polymeric and biomimetic materials  

E-Print Network (OSTI)

Variable temperature, relative humidity ,,0%­100%..., and liquid neutron reflectometry sample cell , and bulk liquid neutron reflectometry sample cell suitable for the study of polymeric and biomimetic. This permits the study, by neutron reflectometry, of samples that are intrinsically unstable in bulk water

Barrett, Christopher

Note: This page contains sample records for the topic "relative humidity rh" 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

Diagnosis of Zonal Mean Relative Humidity Changes in a Warmer Climate JONATHON S. WRIGHT* AND ADAM SOBEL  

E-Print Network (OSTI)

gases and one with doubled CO2. A set of last saturation tracers is applied within the tracer transport relative humidity response to a doubling of CO2 in a climate model is examined using a global climate model JOSEPH GALEWSKY Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, New

Sobel, Adam

22

Evaporative Concentration of 100x J13 Ground Water at 60% Relative Humidity and 90C  

SciTech Connect

In these experiments we studied the behavior of a synthetic concentrated J13 solution as it comes in contact with a Ni-Cr-Mo-alloy selected for waste canisters in the designated high-level nuclear-waste repository at Yucca Mountain, Nevada. Concentrated synthetic J13 solution was allowed to drip slowly onto heated test specimens (90 C, 60% relative humidity) where the water moved down the surface of the specimens, evaporated and minerals precipitated. Mineral separation or zoning along the evaporation path was not observed. We infer from solid analyses and geochemical modeling, that the most corrosive components (Ca, Mg, and F) are limited by mineral precipitation. Minerals identified by x-ray diffraction include thermonatrite, natrite, and trona, all sodium carbonate minerals, as well as kogarkoite (Na{sub 3}SO{sub 4}F), halite (NaCl), and niter (KNO{sub 3}). Calcite and a magnesium silicate precipitation are based on chemical analyses of the solids and geochemical modeling. The most significant finding of this study is that sulfate and fluoride concentrations are controlled by the solubility of kogarkoite. Kogarkoite thermodynamic data are needed in the Yucca Mountain Project database to predict the corrosiveness of carbonate brines and to establish the extent to which fluoride is removed from the brines as a solid.

Staggs, K; Maureen Alai,; Hailey, P; Carroll, S A; Sutton, M; Nguyen, Q A

2003-12-04T23:59:59.000Z

23

Effect of Relative Humidity on the Penetrability and Sporicidal Activity of Formaldehyde  

Science Journals Connector (OSTI)

...contains 50%0 water, was used, the...FORMALDEHYDE additional water. The RH of the...prevent formaldehyde condensation on it; however...TABLE 1. Per cent recovery of B. subtilis...within, the precise atmospheric condition and formaldehyde...sterile distilled- water blank. The blank...

Robert K. Hoffman; David R. Spiner

1970-10-01T23:59:59.000Z

24

Effects of temperature, relative humidity, and scarification method on the germination of Lupinus texensis Hook. seeds  

E-Print Network (OSTI)

germination after 14 days. The best scarification treatment was a 1-hour soak in concentrated sulfuric acid. In a preliminary study, both aeration and leaching after 2 days also improved germina- (loll. Storage of scarified seeds at an ambient RH of 54...+3% and an air temperature of 2421 C decreased germination of seeds from source i' from 100. 0% to 7. 0% after a 1-week treatment. The optimum temperature range for germination was 17' to 26'C for acid-scari- fied seeds from sources ill, 4i2, iP4, iP5, and i...

Kaspar, Michael Joseph

2012-06-07T23:59:59.000Z

25

Radiosondes Corrected for Inaccuracy in RH Measurements  

DOE Data Explorer (OSTI)

Corrections for inaccuracy in Vaisala radiosonde RH measurements have been applied to ARM SGP radiosonde soundings. The magnitude of the corrections can vary considerably between soundings. The radiosonde measurement accuracy, and therefore the correction magnitude, is a function of atmospheric conditions, mainly T, RH, and dRH/dt (humidity gradient). The corrections are also very sensitive to the RH sensor type, and there are 3 Vaisala sensor types represented in this dataset (RS80-H, RS90, and RS92). Depending on the sensor type and the radiosonde production date, one or more of the following three corrections were applied to the RH data: Temperature-Dependence correction (TD), Contamination-Dry Bias correction (C), Time Lag correction (TL). The estimated absolute accuracy of NIGHTTIME corrected and uncorrected Vaisala RH measurements, as determined by comparison to simultaneous reference-quality measurements from Holger Voemel's (CU/CIRES) cryogenic frostpoint hygrometer (CFH), is given by Miloshevich et al. (2006).

Miloshevich, Larry

26

Effects of light intensity and relative humidity on photosynthesis, growth and graft-take of grafted cucumber seedlings during healing and acclimatization  

Science Journals Connector (OSTI)

Healing and acclimatization are key processes for the survival of grafted plants. This study evaluated the influence of light intensity (photosynthetic photon flux, PPF) and relative humidity during the healin...

Yoonah Jang; Eiji Goto; Yasuhiro Ishigami…

2011-08-01T23:59:59.000Z

27

The herbicidal effectiveness of 2,4-dichlorophenoxyacetic acid and 2,3,6,-trichlorobenzoic acid on beans as influenced by relative humidity and droplet size  

E-Print Network (OSTI)

, the author, would like to acknowledge the suggestions of Mr. Wayne G. McCully and Dr. Robert A. Darrow which led to the origination of this study. The advise and help of Mr. McCully during the preparation and experimentation were invaluable... established that relative humidity influences plant growth (Nightingale and Mitchell, 1934) . Tomatoes grown at 35% relative humidity had less chlorophyll, thicker cell walls, higher total carbohydrates and a slower growth rate than plants grown at 95...

Morgan, Page Wesley

1958-01-01T23:59:59.000Z

28

Effects of larval nutrition, relative humidity, and temperature on survival, rate of development, and fecundity of the bollworm, Heliothis zea (Boddie  

E-Print Network (OSTI)

' bollworm eqqs incubatr d at con, tant tomporatures and xolafive humi- dit i oa Following th initial 0. 6 days at 80xF'. bsf'ore tho eggs wsro u. od in the test Ef'f'cct of' temper'! furs and relative humi- dity on ths hatchability oF f'ortilo boll- worm... of ballwarm eggs prior ta hatching, and temperature at relative. humidities af' 10, SO, g0 pec cent Page Effect af rr. "lative humidity on the percentage of' f er tile bal 1warrr eggs that, hatched at dif'f'erent. temporaturcs. . Percentage af' survival...

Fisher, Michael Kilpatrick

2012-06-07T23:59:59.000Z

29

ARM - PI Product - Radiosondes Corrected for Inaccuracy in RH Measurements  

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

ProductsRadiosondes Corrected for Inaccuracy in RH ProductsRadiosondes Corrected for Inaccuracy in RH Measurements Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send PI Product : Radiosondes Corrected for Inaccuracy in RH Measurements 2000.01.01 - 2005.12.31 Site(s) SGP General Description Corrections for inaccuracy in Vaisala radiosonde RH measurements have been applied to ARM SGP radiosonde soundings. The magnitude of the corrections can vary considerably between soundings. The radiosonde measurement accuracy, and therefore the correction magnitude, is a function of atmospheric conditions, mainly T, RH, and dRH/dt (humidity gradient). The corrections are also very sensitive to the RH sensor type, and there are 3 Vaisala sensor types represented in this dataset (RS80-H, RS90, and RS92).

30

Supplementary Figure 1| Neutron diffraction data at 86 % relative humidity. a) Schematic representation of neutron diffraction geometry for -2 scans. Diffraction data are obtained  

E-Print Network (OSTI)

distributions of lipid and protein under varying levels of hydration. Predicted neutron scattering profiles as number density profiles weighted by the neutron scattering lengths of individual atoms, then symmetrizedSupplementary Figure 1| Neutron diffraction data at 86 % relative humidity. a) Schematic

White, Stephen

31

The Relative Humidity in an Isentropic Advection–Condensation Model: Limited Poleward Influence and Properties of Subtropical Minima  

E-Print Network (OSTI)

An idealized model of advection and condensation of water vapor is considered as a representation of processes influencing the humidity distribution along isentropic surfaces in the free troposphere. Results are presented ...

O'Gorman, Paul Ambrose

32

Light Absorption by Secondary Organic Aerosol from ?-Pinene: Effects of Oxidants, Seed Aerosol Acidity, and Relative Humidity  

SciTech Connect

It is well known that light absorption from dust and black carbon aerosols has a warming effect on climate while light scattering from sulfate, nitrate, and sea salt aerosols has a cooling effect. However, there are large uncertainties associated with light absorption and scattering by different types of organic aerosols, especially in the near-UV and UV spectral regions. In this paper, we present the results from a systematic laboratory study focused on measuring light absorption by secondary organic aerosols (SOA) generated from ozonolysis or NO3 oxidation of ?-pinene in the presence of neutral and acidic sulfate seed aerosols. Light absorption was monitored using photoacoustic spectrometers at four different wavelengths: 355, 405, 532 and 870 nm. Light absorption at 355 and 405 nm was observed by SOA generated from oxidation of ?-pinene in the presence of acidic sulfate seed aerosols, under dry conditions. No absorption was observed when the relative humidity was elevated to greater than 27%, or in the presence of neutral sulfate seed aerosols. The light-absorbing compounds are speculated to be aldol condensation oligomers with organosulfate and organic nitrate groups. The results of this study also indicate that organic nitrates from ?-pinene SOA formed in the presence of neutral sulfate seed aerosols do not appear to absorb near-UV and UV radiation.

Song, Chen; Gyawali, Madhu S.; Zaveri, Rahul A.; Shilling, John E.; Arnott, W. Patrick

2013-10-25T23:59:59.000Z

33

Novel Approaches to Immobilized Heteropoly Acid Systems for High Temperature, Low Relative Humidity Polymer-Type Membranes - Final Report  

SciTech Connect

Original research was carried out at the CSM and the 3M Company from March 2007 through September 2011. The research was aimed at developing new to the world proton electrolyte materials for use in hydrogen fuel cells, in particular with high proton conductivity under hot and dry conditions (>100mS/cm at 120°C and 50%RH). Broadly stated, the research at 3M and between 3M and CSM that led to new materials took place in two phases: In the first phase, hydrocarbon membranes that could be formed by photopolymerization of monomer mixtures were developed for the purpose of determining the technical feasibility of achieving the program's Go/No-Go decision conductivity target of >100mS/cm at 120°C and 50%RH. In the second phase, attempts were made to extend the achieved conductivity level to fluorinated material systems with the expectation that durability and stability would be improved (over the hydrocarbon material). Highlights included: Multiple lots of an HPA-immobilized photocurable terpolymer derived from di-vinyl-silicotungstic acid (85%), n-butyl acrylate, and hexanediol diacrylate were prepared at 3M and characterized at 3M to exhibit an initial conductivity of 107mS/cm at 120°C and 47%RH (PolyPOM85v) using a Bekktech LLC sample fixture and TestEquity oven. Later independent testing by Bekktech LLC, using a different preheating protocol, on the same material, yielded a conductivity value of approximately 20mS/cm at 120°C and 50%RH. The difference in measured values is likely to have been the result of an instability of properties for the material or a difference in the measurement method. A dispersed catalyst fuel cell was fabricated and tested using a 150¼m thick HPA-based photocurable membrane (above, PolyPOM75v), exhibiting a current density of greater than 300mA/cm2 at 0.5V (H2/Air 800/1800sccm 70°C/75%RH ambient outlet pressure). Multiple lots of a co-polymer based on poly-trifluorovinylether (TFVE) derived HPA were synthesized and fabricated into films, Generation II films. These materials showed proton conductivities as high as 1 S/cm under high RH conditions. However, the materials suffered from compromised properties due to impure monomers and low molecular weights. Multiple lots of an HPA-immobilized fluoropolymer derived from preformed PVDF-HFP (Generation III films) were synthesized and formed into membranes at 3M and characterized at 3M to exhibit conductivity reaching approximately 75mS/cm at 120°C/40%RH using a Bekktech sample fixture and TestEquity oven (optimized membrane, at close of program). Initial fuel cell fabrication and testing for this new class of membrane yielded negative results (no measureable proton conductivity); however, the specific early membrane that was used for the two 5cm2 MEAs was later determined to have <1 mS/cm at 80°C/80%RH using the Bekktech fixture, vs. ca. 200 mS/cm at 80°C/80%RH for samples of the later-optimized type described above. Future work in this area (beyond the presently reported contract) should include additional attempts to fabricate and test fuel cells based on the later-optimized Generation II and III polymer. A manufacturing study was performed which predicted no difficulties in any future scale up of the materials.

Herring, Andrew M; Horan, James L; Aieta, Niccolo V; Sachdeva, Sonny; Kuo, Mei-Chen; Ren, Hui; Lingutla, Anitha; Emery, Michael; Haugen, Gregory M; Yandrasits, Michael A; Sharma, Neeraj; Coggio, William D; Hamrock, Steven J; Frey, Matthew H

2012-05-20T23:59:59.000Z

34

Surface Temperature Humidity Reference System Handbook - November 2005  

SciTech Connect

The Surface Temperature and Humidity Reference (SURTHREF) system is intended to provide accurate reference values of ambient temperature and relative humidity for comparison with radiosonde prelaunch values.

MT Ritsche

2005-11-30T23:59:59.000Z

35

RH Packaging Program Guidance  

SciTech Connect

The purpose of this program guidance document is to provide the technical requirements for use, operation, inspection, and maintenance of the RH-TRU 72-B Waste Shipping Package (also known as the "RH-TRU 72-B cask") and directly related components. This document complies with the requirements as specified in the RH-TRU 72-B Safety Analysis Report for Packaging (SARP), and Nuclear Regulatory Commission (NRC) Certificate of Compliance (C of C) 9212. If there is a conflict between this document and the SARP and/or C of C, the C of C shall govern. The C of C states: "...each package must be prepared for shipment and operated in accordance with the procedures described in Chapter 7.0, Operating Procedures, of the application." It further states: "...each package must be tested and maintained in accordance with the procedures described in Chapter 8.0, Acceptance Tests and Maintenance Program of the Application." Chapter 9.0 of the SARP tasks the Waste Isolation Pilot Plant (WIPP) Management and Operating (M&O) Contractor with assuring the packaging is used in accordance with the requirements of the C of C. Because the packaging is NRC-approved, users need to be familiar with Title 10 Code of Federal Regulations (CFR) §71.8, "Deliberate Misconduct." Any time a user suspects or has indications that the conditions of approval in the C of C were not met, the U.S. Department of Energy (DOE) Carlsbad Field Office (CBFO) shall be notified immediately. The CBFO will evaluate the issue and notify the NRC if required.In accordance with 10 CFR Part 71, "Packaging and Transportation of Radioactive Material," certificate holders, packaging users, and contractors or subcontractors who use, design, fabricate, test, maintain, or modify the packaging shall post copies of (1) 10 CFR Part 21, "Reporting of Defects and Noncompliance," regulations, (2) Section 206 of the Energy Reorganization Act of 1974, and (3) NRC Form 3, Notice to Employees. These documents must be posted in a conspicuous location where the activities subject to these regulations are conducted. This document details the instructions to be followed to operate, maintain, and test the RH-TRU 72-B packaging. This Program Guidance standardizes instructions for all users. Users shall follow these instructions or equivalent approved instructions. Following these instructions assures that operations meet the requirements of the SARP.

Washington TRU Solutions LLC

2008-01-12T23:59:59.000Z

36

RH_SRS_Shipment  

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

WIPP Trucks Delivering First Remote-Handled Transuranic Waste WIPP Trucks Delivering First Remote-Handled Transuranic Waste from the Savannah River Site CARLSBAD, N.M., June 11, 2012- Photo caption: On June 7, 2012, Waste Isolation Pilot Plant (WIPP) trucks approach the WIPP facility near Carlsbad, New Mexico, with the first shipment of defense- related remote-handled transuranic (TRU) waste from Savannah River Site (SRS), near Aiken, South Carolina. TRU waste consists of materials contaminated with radioactive elements that have atomic numbers greater than uranium, including tools, rags, protective clothing, sludge and soil. That shipment and two contact- handled TRU waste shipments were released by SRS at the same time The three shipments consisted of (left to right) a TRUPACT-III, a RH-72B and one with

37

RH Packaging Program Guidance  

SciTech Connect

The purpose of this program guidance document is to provide the technical requirements for use, operation, inspection, and maintenance of the RH-TRU 72-B Waste Shipping Package and directly related components. This document complies with the requirements as specified in the RH-TRU 72-B Safety Analysis Report for Packaging (SARP), and Nuclear Regulatory Commission (NRC) Certificate of Compliance (C of C) 9212. If there is a conflict between this document and the SARP and/or C of C, the C of C shall govern. The C of C states: "...each package must be prepared for shipment and operated in accordance with the procedures described in Chapter 7.0, Operating Procedures, of the application." It further states: "...each package must be tested and maintained in accordance with the procedures described in Chapter 8.0, Acceptance Tests and Maintenance Program of the Application." Chapter 9.0 of the SARP tasks the Waste Isolation Pilot Plant (WIPP) Management and Operating (M&O) Contractor with assuring the packaging is used in accordance with the requirements of the C of C. Because the packaging is NRC-approved, users need to be familiar with 10 Code of Federal Regulations (CFR) §71.8, "Deliberate Misconduct." Any time a user suspects or has indications that the conditions of approval in the C of C were not met, the U.S. Department of Energy (DOE) Carlsbad Field Office (CBFO) shall be notified immediately. CBFO will evaluate the issue and notify the NRC if required. In accordance with 10 CFR Part 71, "Packaging and Transportation of Radioactive Material," certificate holders, packaging users, and contractors or subcontractors who use, design, fabricate, test, maintain, or modify the packaging shall post copies of (1) 10 CFR Part 21, "Reporting of Defects and Noncompliance," regulations, (2) Section 206 of the Energy Reorganization Act of 1974, and (3) NRC Form 3, Notice to Employees. These documents must be posted in a conspicuous location where the activities subject to these regulations are conducted. This document details the instructions to be followed to operate, maintain, and test the RH-TRU 72-B packaging. This Program Guidance standardizes instructions for all users. Users shall follow these instructions or equivalent approved instructions. Following these instructions assures that operations meet the requirements of the SARP.

Washington TRU Solutions LLC

2006-11-07T23:59:59.000Z

38

Investigation of the recoverable degradation of PEM fuel cell operated under drive cycle and different humidities  

Science Journals Connector (OSTI)

Abstract Recoverable degradation of a proton exchange membrane fuel cell (PEMFC) under different relative humidities (RHs) after a whole night rest was investigated. A single cell was operated under drive cycle to simulate the working conditions of fuel cell vehicle. It was found that the cell performance decreased after 5 h operation and recovered mostly after one night rest at higher humidities, i.e. 100%, 75% and 50% RH for both cathode and anode sides; while continuous decrease took place at lower humidity, 35%RH. Polarization curve, electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV) and linear sweep voltammetry (LSV) were conducted before and after every 5 h drive cycle for investigating the mechanism of the recoverable degradation. It was found that water content, current density and thermal management might be the main contributions to the performance degradation, by impacting the membrane conductivity, internal resistance, electrode kinetics, and catalyst utilization. A good understanding of voltage recovery phenomenon after several hours rest and its effect on durability will be helpful in improving the reliability and durability of PEMFC.

Feijie Wang; Daijun Yang; Bing Li; Hao Zhang; Chuanpu Hao; Fengrui Chang; Jianxin Ma

2014-01-01T23:59:59.000Z

39

RH Packaging Program Guidance  

SciTech Connect

The purpose of this program guidance document is to provide technical requirements for use, operation, inspection, and maintenance of the RH-TRU 72-B Waste Shipping Package and directly related components. This document complies with the requirements as specified in the RH-TRU 72-B Safety Analysis Report for Packaging (SARP), and Nuclear Regulatory Commission (NRC) Certificate of Compliance (C of C) 9212. If there is a conflict between this document and the SARP and/or C of C, the SARP and/or C of C shall govern. The C of C states: ''...each package must be prepared for shipment and operated in accordance with the procedures described in Chapter 7.0, ''Operating Procedures,'' of the application.'' It further states: ''...each package must be tested and maintained in accordance with the procedures described in Chapter 8.0, ''Acceptance Tests and Maintenance Program of the Application.'' Chapter 9.0 of the SARP tasks the Waste Isolation Pilot Plant (WIPP) Management and Operating (M&O) contractor with assuring the packaging is used in accordance with the requirements of the C of C. Because the packaging is NRC approved, users need to be familiar with 10 CFR {section} 71.11, ''Deliberate Misconduct.'' Any time a user suspects or has indications that the conditions of approval in the C of C were not met, the Carlsbad Field Office (CBFO) shall be notified immediately. CBFO will evaluate the issue and notify the NRC if required. This document details the instructions to be followed to operate, maintain, and test the RH-TRU 72-B packaging. This Program Guidance standardizes instructions for all users. Users shall follow these instructions. Following these instructions assures that operations are safe and meet the requirements of the SARP. This document is available on the Internet at: ttp://www.ws/library/t2omi/t2omi.htm. Users are responsible for ensuring they are using the current revision and change notices. Sites may prepare their own document using the word-for-word steps in th is document, in sequence, including Notes and cautions. Site specific information may be included as necessary. The document, and revisions, must then be submitted to CBFO at sitedocuments@wipp.ws for approval. A copy of the approval letter from CBFO shall be available for audit purposes. Users may develop site-specific procedures addressing preoperational activities, quality assurance (QA), hoisting and rigging, and radiation health physics to be used with the instructions contained in this document. Users may recommend changes to this document by submitting their recommendations (in writing) to the WIPP M&O Contractor RH Packaging Maintenance Engineer for evaluation. If approved, the change(s) will be incorporated into this document for use by ALL users. Before first use and every 12 months after, user sites will be audited to this document to ensure compliance. They will also be audited within one year from the effective date of revisions to this document.

Washington TRU Solutions, LLC

2003-08-25T23:59:59.000Z

40

Residential Humidity Control Strategies  

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

Residential Humidity Control Strategies Residential Humidity Control Strategies Armin Rudd Residential Energy Efficiency Stakeholder Meeting 2/29 - 3/2/2012 Austin, Texas 2 Residential Energy Efficiency Stakeholder Meeting 2/29 - 3/2/2012 Austin, Texas Humidity control goals  Comfort, and Indoor Air Quality  Control indoor humidity year-around, just like we do temperature  Durability and customer satisfaction  Reduce builder risk and warranty/service costs 2 3 Residential Energy Efficiency Stakeholder Meeting 2/29 - 3/2/2012 Austin, Texas Humidity control challenges 1. In humid cooling climates, there will always be times of the year when there is little sensible cooling load to create thermostat demand but humidity remains high * Cooling systems that modify fan speed and temperature set point based on humidity can help but are still limited

Note: This page contains sample records for the topic "relative humidity rh" 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

RH Packaging Operations Manual  

SciTech Connect

This procedure provides operating instructions for the RH-TRU 72-B Road Cask, Waste Shipping Package. In this document, ''Packaging'' refers to the assembly of components necessary to ensure compliance with the packaging requirements (not loaded with a payload). ''Package'' refers to a Type B packaging that, with its radioactive contents, is designed to retain the integrity of its containment and shielding when subject to the normal conditions of transport and hypothetical accident test conditions set forth in 10 CFR Part 71. Loading of the RH 72-B cask can be done two ways, on the RH cask trailer in the vertical position or by removing the cask from the trailer and loading it in a facility designed for remote-handling (RH). Before loading the 72-B cask, loading procedures and changes to the loading procedures for the 72-B cask must be sent to CBFO at sitedocuments@wipp.ws for approval.

Washington TRU Solutions LLC

2003-09-17T23:59:59.000Z

42

Spaceborne profiling of atmospheric temperature and particle extinction with pure rotational Raman lidar and of relative humidity in combination with differential absorption lidar: performance simulations  

SciTech Connect

The performance of a spaceborne temperature lidar based on the pure rotational Raman (RR) technique in the UV has been simulated. Results show that such a system deployed onboard a low-Earth-orbit satellite would provide global-scale clear-sky temperature measurements in the troposphere and lower stratosphere with precisions that satisfy World Meteorological Organization (WMO) threshold observational requirements for numerical weather prediction and climate research applications. Furthermore, nighttime temperature measurements would still be within the WMO threshold observational requirements in the presence of several cloud structures. The performance of aerosol extinction measurements from space, which can be carried out simultaneously with temperature measurements by RR lidar, is also assessed. Furthermore, we discuss simulations of relative humidity measurements from space obtained from RR temperature measurements and water-vapor data measured with the differential absorption lidar (DIAL) technique.

Di Girolamo, Paolo; Behrendt, Andreas; Wulfmeyer, Volker

2006-04-10T23:59:59.000Z

43

Improving Comfort in Hot-Humid Climates with a Whole-House Dehumidifier, Windermere, Florida (Fact Sheet)  

SciTech Connect

Maintaining comfort in a home can be challenging in hot-humid climates. At the common summer temperature set point of 75 degrees F, the perceived air temperature can vary by 11 degrees F because higher indoor humidity reduces comfort. Often the air conditioner (AC) thermostat set point is lower than the desirable cooling level to try to increase moisture removal so that the interior air is not humid or "muggy." However, this method is not always effective in maintaining indoor relative humidity (RH) or comfort. In order to quantify the performance of a combined whole-house dehumidifier (WHD) AC system, researchers from the U.S. Department of Energy's Building America team Consortium of Advanced Residential Buildings (CARB) monitored the operation of two Lennox AC systems coupled with a Honeywell DH150 TrueDRY whole-house dehumidifier for a six-month period. By using a WHD to control moisture levels (latent cooling) and optimizing a central AC to control temperature (sensible cooling), improvements in comfort can be achieved while reducing utility costs. Indoor comfort for this study was defined as maintaining indoor conditions at below 60% RH and a humidity ratio of 0.012 lbm/lbm while at common dry bulb set point temperatures of 74 degrees -80 degrees F. In addition to enhanced comfort, controlling moisture to these levels can reduce the risk of other potential issues such as mold growth, pests, and building component degradation. Because a standard AC must also reduce dry bulb air temperature in order to remove moisture, a WHD is typically needed to support these latent loads when sensible heat removal is not desired.

Not Available

2013-11-01T23:59:59.000Z

44

Problem 7-3: The air enters with a dry-bulb temperature of 50 o F and, at 50% relative humidity, with a wet-  

E-Print Network (OSTI)

of the power-plant Rankine cycle. The actual process evaporates enough water to increase the humidity ratio. We are now ready to proceed with a cycle calculation, similar to Problem 6-6 P T x h s w q eff · m

45

RH-TRU Waste Content Codes (RH-TRUCON)  

SciTech Connect

The Remote-Handled Transuranic (RH-TRU) Content Codes (RH-TRUCON) document describes the inventory of RH-TRU waste within the transportation parameters specified by the Remote-Handled Transuranic Waste Authorized Methods for Payload Control (RH-TRAMPAC).1 The RH-TRAMPAC defines the allowable payload for the RH-TRU 72-B. This document is a catalog of RH-TRU 72-B authorized contents by site. A content code is defined by the following components: • A two-letter site abbreviation that designates the physical location of the generated/stored waste (e.g., ID for Idaho National Laboratory [INL]). The site-specific letter designations for each of the sites are provided in Table 1. • A three-digit code that designates the physical and chemical form of the waste (e.g., content code 317 denotes TRU Metal Waste). For RH-TRU waste to be transported in the RH-TRU 72-B, the first number of this three-digit code is “3.” The second and third numbers of the three-digit code describe the physical and chemical form of the waste. Table 2 provides a brief description of each generic code. Content codes are further defined as subcodes by an alpha trailer after the three-digit code to allow segregation of wastes that differ in one or more parameter(s). For example, the alpha trailers of the subcodes ID 322A and ID 322B may be used to differentiate between waste packaging configurations. As detailed in the RH-TRAMPAC, compliance with flammable gas limits may be demonstrated through the evaluation of compliance with either a decay heat limit or flammable gas generation rate (FGGR) limit per container specified in approved content codes. As applicable, if a container meets the watt*year criteria specified by the RH-TRAMPAC, the decay heat limits based on the dose-dependent G value may be used as specified in an approved content code. If a site implements the administrative controls outlined in the RH-TRAMPAC and Appendix 2.4 of the RH-TRU Payload Appendices, the decay heat or FGGR limits based on a 10-day shipping period (rather than the standard 60-day shipping period) may be used as specified in an approved content code. Requests for new or revised content codes may be submitted to the WIPP RH-TRU Payload Engineer for review and approval, provided all RH-TRAMPAC requirements are met.

Washington TRU Solutions

2007-05-30T23:59:59.000Z

46

RH-TRU Waste Content Codes (RH-TRUCON)  

SciTech Connect

The Remote-Handled Transuranic (RH-TRU) Content Codes (RH-TRUCON) document describes the inventory of RH-TRU waste within the transportation parameters specified by the Remote-Handled Transuranic Waste Authorized Methods for Payload Control (RH-TRAMPAC).1 The RH-TRAMPAC defines the allowable payload for the RH-TRU 72-B. This document is a catalog of RH-TRU 72-B authorized contents by site. A content code is defined by the following components: • A two-letter site abbreviation that designates the physical location of the generated/stored waste (e.g., ID for Idaho National Laboratory [INL]). The site-specific letter designations for each of the sites are provided in Table 1. • A three-digit code that designates the physical and chemical form of the waste (e.g., content code 317 denotes TRU Metal Waste). For RH-TRU waste to be transported in the RH-TRU 72-B, the first number of this three-digit code is “3.” The second and third numbers of the three-digit code describe the physical and chemical form of the waste. Table 2 provides a brief description of each generic code. Content codes are further defined as subcodes by an alpha trailer after the three-digit code to allow segregation of wastes that differ in one or more parameter(s). For example, the alpha trailers of the subcodes ID 322A and ID 322B may be used to differentiate between waste packaging configurations. As detailed in the RH-TRAMPAC, compliance with flammable gas limits may be demonstrated through the evaluation of compliance with either a decay heat limit or flammable gas generation rate (FGGR) limit per container specified in approved content codes. As applicable, if a container meets the watt*year criteria specified by the RH-TRAMPAC, the decay heat limits based on the dose-dependent G value may be used as specified in an approved content code. If a site implements the administrative controls outlined in the RH-TRAMPAC and Appendix 2.4 of the RH-TRU Payload Appendices, the decay heat or FGGR limits based on a 10-day shipping period (rather than the standard 60-day shipping period) may be used as specified in an approved content code. Requests for new or revised content codes may be submitted to the WIPP RH-TRU Payload Engineer for review and approval, provided all RH-TRAMPAC requirements are met.

Washington TRU Solutions LLC

2007-08-01T23:59:59.000Z

47

Ventilation Requirements in Hot Humid Climates  

E-Print Network (OSTI)

the Building America program, LBNL has simulated the effects of mechanical ventilation systems that meet ASHRAE Standard 62.2 on ventilation, energy use and indoor humidity levels. In order to capture moisture related HVAC system operation..., LBNL has simulated the effects of mechanical ventilation systems that meet ASHRAE Standard 62.2 on ventilation, energy use and indoor humidity levels for houses that meet current (2005) International Energy Conservation Code requirements...

Walker, I. S.; Sherman, M. H.

2006-01-01T23:59:59.000Z

48

Control Humidity With Single-Duct, Single-Zone, Constant Air Volume System  

E-Print Network (OSTI)

for the AHLJ after Adjusted Conditions I I Return Fan: off; Return Damper: closed; Outside Air Damper: closed (signal) I 7- 14-99 9:44 AM AHU Dimensions Total Air Flow (CW Average Velocity (FPM) Temperature ("F) Humidity (% RH) Dew Point (OF... (FPM) Humidity (% RH) 1 83.0 -... r------ L -/ Dew Point (OF) Static Pressure supply 24" x 24" 4450 1180 Outside Air N/ A 2490 N/ A Mix Air 20" x 36" 4530 1091 T~mnrmt~w~ (OF) I 67.6 1 73.0 I 72.1 I 85.7 I . - 62.9 10.75 Return Air...

Chen, H.; Deng, S.; Bruner, H. L.; Claridge, D. E.

2000-01-01T23:59:59.000Z

49

Improved Humidity Profiling by Combining Passive and Active Remote...  

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

resolution of atmospheric humidity profiles. We show preliminary results and discuss advantages and limitations related to this technique. Basic Principles The role of ground-based...

50

Polyimide Capacitive Humidity Sensors  

E-Print Network (OSTI)

to actiMta a switch are still widely used in residential a~plications. These humidity aontrollers an reliable anl trrublefree, but onnot be ansidered precision cmtmls because of variatiom in materials anl in manufacturing tolera~e~. In a...

Lofgren, H.; Mills, F.

1988-01-01T23:59:59.000Z

52

In Situ Validation of a Correction for Time-Lag and Bias Errors in Vaisala RS80-H Radiosonde Humidity Measurements  

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

In Situ Validation of a Correction for Time-Lag and In Situ Validation of a Correction for Time-Lag and Bias Errors in Vaisala RS80-H Radiosonde Humidity Measurements L. M. Miloshevich National Center for Atmospheric Research Boulder, Colorado H. Vömel and S. J. Oltmans National Oceanic and Atmospheric Administration Boulder, Colorado A. Paukkunen Vaisala Oy Helsinki, Finland Introduction Radiosonde relative humidity (RH) measurements are fundamentally important to Atmospheric Radiation Measurement (ARM) Program goals because they are used in a wide variety of both operational and research applications, including initialization of numerical models and evaluation of model results, validation of remote-sensor water vapor retrievals, construction of water vapor climatologies and studies of climate trends, parameterization of cloud processes, and as input to

53

Ultrafast Graphene Oxide Humidity Sensors  

Science Journals Connector (OSTI)

Ultrafast Graphene Oxide Humidity Sensors ... Graphene oxide can be exploited in humidity and temperature sensors with a number of convenient features such as flexibility, transparency and suitability for large-scale manufacturing. ... Here we show that the two-dimensional nature of graphene oxide and its superpermeability to water combine to enable humidity sensors with unprecedented response speed (?30 ms response and recovery times). ...

Stefano Borini; Richard White; Di Wei; Michael Astley; Samiul Haque; Elisabetta Spigone; Nadine Harris; Jani Kivioja; Tapani Ryhänen

2013-11-09T23:59:59.000Z

54

humidity | OpenEI  

Open Energy Info (EERE)

humidity humidity Dataset Summary Description This raw data reflects readings from instruments mounted on or near a 82 meter meteorological tower located at the National Wind Technology Center (NWTC), approximately 5 miles south of Boulder, CO (specifically: 39.9107 N, 105.2348 W, datum WGS84). The base elevation at the site is 1,855 meters AMSL. Source NREL Date Released Unknown Date Updated March 10th, 2011 (3 years ago) Keywords DOE humidity irrandiance NREL NWTC pressure temperature turbulence wind wind direction wind speed Data text/plain icon Raw data (8/24/2001 - 3/10/2011) (txt, 681 KiB) application/vnd.ms-excel icon Field IDs for above .txt file (xls, 69.6 KiB) Quality Metrics Level of Review Some Review Comment Scientists and Technicians are notified real-time via email of instruments outside the above min/max or delta comparisons (http://www.nrel.gov/midc/nwtc_m2/) Data have not been reviewed for accuracy or completeness; disclaimer available (http://www.nrel.gov/disclaimer.html).

55

THE EFFECTS OF DIFFERENT HUMIDITIES ON THE HATCHING OF THE EGGS OF HONEYBEES  

E-Print Network (OSTI)

. Provision of water inside the hive remedies this condition, and normal broodrearing is resumed. (DOULL and of the remainder, only 2.9 % produced normal larvae. No eggs hatched at humidities below 50 % R.H. Abnormal plane, releasing the hat- ching fluid which dissolves the chorion. If free water is present in the cell

Paris-Sud XI, Université de

56

Effects of Temperature and Humidity on the Characterization of C-4 Explosive Threats  

SciTech Connect

The amount of time that an explosive is present on the surface of a material is dependent upon the original amount of explosive on the surface, adhesive forces, temperature and humidity, as well as other environmental factors. This laboratory study focused on evaluating RDX crystal morphology changes resulting from variations in temperature and humidity conditions of the sample. The temperature and humidity conditions were controlled using a Tenney THRJ environmental chamber and a Tenney T11RC-1.5 environmental chamber. These chambers allow the temperature and humidity to be held within ±3°C and ±5% RH. The temperature and humidity conditions used for this test series were: 40°F/40%RH, ~70°F/20%RH (samples left on benchtop), 70°F/70%RH, 70°F/95%RH, 95°F/40%RH, 95°F/70%RH, and 95°F/95%RH. These temperature and humidity set points were chosen to represent a wide range of conditions that may be found in real world scenarios. C-4 (RDX crystals and binder material) was deposited on the surface of one of six substrates by placing a fingerprint from the explosive block onto the matrix surface. The substrates were chosen to provide a range of items that are commonly used. Six substrate types were used during these tests: 50% cotton/50% polyester as found in T-shirts, 100% cotton with a smooth surface such as that found in a cotton dress shirt, 100% cotton on a rough surface such as that found on canvas or denim, suede leather such as might be found on jackets, purses, or shoes, painted metal obtained from a junked car hood, and a computer diskette. The samples were not pre-cleaned prior to testing and contained sizing agents, and in the case of the metal: oil, dirt, scratches, and rust spots. The substrates were photographed at various stages of testing, using a Zeiss Discover V12 stereoscope with Axiocam ICc1 3 megapixel digital camera, to determine any changes in the crystalline morphology. Some of the samples were examined using scanning electron microscopy (SEM) and atomic force microscopy (AFM) in an attempt to determine how the explosive was bound to the substrate.

C. J. Miller

2012-06-01T23:59:59.000Z

57

Humidity Implications for Meeting Residential Ventilation Requirements  

E-Print Network (OSTI)

residential ventilation standard, ASHRAE Standard 62.2. Because meeting this standard can significantly change, Kansas City, Seattle, Minneapolis and Phoenix). In order to capture moisture related HVAC system.2, design strategies for moisture control, humidity and comfort. #12;INTRODUCTION ASHRAE standards 62

58

Atmospheric Condensation Potential of Windows in Hot, Humid Climates  

E-Print Network (OSTI)

frequent atmospheric condensation on external surfaces of windows when their surface temperature drops below the dew point temperature of the hot humid air. To date, external surface condensation on windows has been given relatively much less importance...

El Diasty, R.; Budaiwi, I.

59

Ultrahigh humidity sensitivity of graphene oxide  

E-Print Network (OSTI)

Humidity sensors have been extensively used in various fields, and numerous problems are encountered when using humidity sensors, including low sensitivity, long response and recovery times, and narrow humidity detection ...

Bi, Hengchang

60

Data Center Economizer Contamination and Humidity Study  

SciTech Connect

Data centers require continuous air conditioning to address high internal heat loads (heat release from equipment) and maintain indoor temperatures within recommended operating levels for computers. Air economizer cycles, which bring in large amounts of outside air to cool internal loads when weather conditions are favorable, could save cooling energy. There is reluctance from many data center owners to use this common cooling technique, however, due to fear of introducing pollutants and potential loss of humidity control. Concerns about equipment failure from airborne pollutants lead to specifying as little outside air as permissible for human occupants. To investigate contamination levels, particle monitoring was conducted at 8 data centers in Northern California. Particle counters were placed at 3 to 4 different locations within and outside of each data center evaluated in this study. Humidity was also monitored at many of the sites to determine how economizers affect humidity control. Results from this study indicate that economizers do increase the outdoor concentration in data centers, but this concentration, when averaged annually, is still below current particle concentration limits. Study results are summarized below: (1) The average particle concentrations measured at each location, both outside and at the servers, are shown in Table 1. Measurements show low particle concentrations at all data centers without economizers, regardless of outdoor particle concentrations. Particle concentrations were typically an order of magnitude below both outside particle concentrations and recently published ASHRAE standards. (2) Economizer use caused sharp increases in particle concentrations when the economizer vents were open. The particle concentration in the data centers, however, quickly dropped back to pre-economizer levels when the vents closed. Since economizers only allow outside air part of the time, the annual average concentrations still met the ASHRAE standards. However, concentration were still above the levels measured in data centers that do not use economizers (3) Current filtration in data centers is minimal (ASHRAE 40%) since most air is typically recycled. When using economizers, modest improvements in filtration (ASHRAE 85%) can reduce particle concentrations to nearly match the level found in data centers that do not use economizers. The extra cost associated with improve filters was not determined in this study. (4) Humidity was consistent and within the ASHRAE recommended levels for all data centers without economizers. Results show that, while slightly less steady, humidity in data centers with economizers can also be controlled within the ASHRAE recommended levels. However, this control of humidity reduces energy savings by limiting the hours the economizer vents are open. (5) The potential energy savings from economizer use has been measured in one data center. When economizers were active, mechanical cooling power dropped by approximately 30%. Annual savings at this center is estimated within the range of 60-80 MWh/year, representing approximately a 5% savings off the mechanical energy load of the data center. Incoming temperatures and humidity at this data center were conservative relative to the ASHRAE acceptable temperature and humidity ranges. Greater savings may be available if higher temperature humidity levels in the data center area were permitted. The average particle concentrations measured at each of the eight data center locations are shown in Table 1. The data centers ranged in size from approximately 5,000 ft{sup 2} to 20,000 ft{sup 2}. The indoor concentrations and humidity in Table 1 represents measurements taken at the server rack. Temperature measurements at the server rack consistently fell between 65-70 F. The Findings section contains a discussion of the individual findings from each center. Data centers currently operate under very low contamination levels. Economizers can be expected to increase the particle concentration in data centers, but the increase appears to still be

Shehabi, Arman; Tschudi, William; Gadgil, Ashok

2007-03-06T23:59:59.000Z

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


61

High Temperature, Low Relative Humidity, Polymer-type Membranes Based on Disulfonated Poly(arylene ether) Block and Random Copolymers Optionally Incorporating Protonic Conducting Layered Water insoluble Zirconium Fillers  

SciTech Connect

Our research group has been engaged in the past few years in the synthesis of biphenol based partially disulfonated poly(arylene ether sulfone) random copolymers as potential PEMs. This series of polymers are named as BPSH-xx, where BP stands for biphenol, S stands for sulfonated, H stands for acidified and xx represents the degree of disulfonation. All of these sulfonated copolymers phase separate to form nano scale hydrophilic and hydrophobic morphological domains. The hydrophilic phase containing the sulfonic acid moieties causes the copolymer to absorb water. Water confined in hydrophilic pores in concert with the sulfonic acid groups serve the critical function of proton (ion) conduction and water transport in these systems. Both Nafion and BPSH show high proton conductivity at fully hydrated conditions. However proton transport is especially limited at low hydration level for the BPSH random copolymer. It has been observed that the diffusion coefficients of both water and protons change with the water content of the pore. This change in proton and water transport mechanisms with hydration level has been attributed to the solvation of the acid groups and the amount of bound and bulk-like water within a pore. At low hydration levels most of the water is tightly associated with sulfonic groups and has a low diffusion coefficient. This tends to encourage isolated domain morphology. Thus, although there may be significant concentrations of protons, the transport is limited by the discontinuous morphological structure. Hence the challenge lies in how to modify the chemistry of the polymers to obtain significant protonic conductivity at low hydration levels. This may be possible if one can alter the chemical structure to synthesize nanophase separated ion containing block copolymers. Unlike the BPSH copolymers, where the sulfonic acid groups are randomly distributed along the chain, the multiblock copolymers will feature an ordered sequence of hydrophilic and hydrophobic segments. If, like in Nafion, connectivity is established between the hydrophilic domains in these multiblock copolymers, they will not need as much water, and hence will show much better protonic conductivity than the random copolymers (with similar degree of sulfonation, or IEC) at partially hydrated conditions. The goal of this research is to develop a material suitable for use as a polymer electrolyte membrane which by the year 2010 will meet all the performance requirements associated with fuel cell operation at high temperatures and low relative humidity, and will out-perform the present standard Nafion{reg_sign}. In particular, it is our objective to extend our previous research based on the use of thermally, oxidatively, and hydrolytically, ductile, high Tg ion containing polymers based on poly(arylene ethers) to the production of polymer electrolyte membranes which will meet all the performance requirements in addition to having an areal resistance of < 0.05 ohm-cm{sup 2} at a temperature of up to 120 C, relative humidity of 25 to 50%, and up to 2.5 atm total pressure. In many instances, our materials already out performs Nafion{reg_sign}, and it is expected that with some modification by either combining with conductive inorganic fillers and/or synthesizing as a block copolymer it will meet the performance criteria at high temperatures and low relative humidity. A key component in improving the performance of the membranes (and in particular proton conductivity) and meeting the cost requirements of $40/m{sup 2} is our development of a film casting process, which shows promise for generation of void free thin films of uniform thickness with controlled polymer alignment and configuration.

McGrath, James E.; Baird, Donald G.

2010-06-03T23:59:59.000Z

62

Measure Guideline: Supplemental Dehumidification in Warm-Humid Climates  

SciTech Connect

This document covers a description of the need and applied solutions for supplemental dehumidification in warm-humid climates, especially for energy efficient homes where the sensible cooling load has been dramatically reduced. In older homes in warm-humid climates, cooling loads are typically high and cooling equipment runs a lot to cool the air. The cooling process also removes indoor moisture, reducing indoor relative humidity. However, at current residential code levels, and especially for above-code programs, sensible cooling loads have been so dramatically reduced that the cooling system does not run a lot to cool the air, resulting in much less moisture being removed. In these new homes, cooling equipment is off for much longer periods of time especially during spring/fall seasons, summer shoulder months, rainy periods, some summer nights, and some winter days. In warm-humid climates, those long off periods allow indoor humidity to become elevated due to internally generated moisture and ventilation air change. Elevated indoor relative humidity impacts comfort, indoor air quality, and building material durability. Industry is responding with supplemental dehumidification options, but that effort is really in its infancy regarding year-round humidity control in low-energy homes. Available supplemental humidity control options are discussed. Some options are less expensive but may not control indoor humidity as well as more expensive and comprehensive options. The best performing option is one that avoids overcooling and avoids adding unnecessary heat to the space by using waste heat from the cooling system to reheat the cooled and dehumidified air to room-neutral temperature.

Rudd, A.

2014-10-01T23:59:59.000Z

63

Evaluation of Humidity Control Options in Hot-Humid Climate Homes (Fact Sheet), Building America: Technical Highlight, Building Technologies Program (BTP)  

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

Humidity Control Options in Hot-Humid Climate Homes As the Building America program researches construction of homes that achieve greater source energy savings over typical mid-1990s construction, proper modeling of whole-house latent loads and operation of humidity control equipment has become a high priority. Long-term high relative humidity can cause health and durability problems in homes, particularly in a hot-humid climate. In this study, researchers at the National Renewable Energy Laboratory (NREL) used the latest EnergyPlus tool equipped with the moisture capacitance model to analyze the indoor relative humidity in three home types: a Building America high-performance home; a mid- 1990s reference home; and a 2006 International Energy Conservation

64

Active Humidity Control Through Gas-Fired Desiccant Humidity Pump  

E-Print Network (OSTI)

to regenerate the desiccant. Field experiments of two humidity pumps on existing commercial buildings have been initiated. Each system dehumidifies 5000 scfm of make-up air to meet all the latent loads, which is then fed to conventional, electric-driven HVAC...

Novosel, D.; Griffiths, W. C.

1988-01-01T23:59:59.000Z

65

RH-TRU Waste Content Codes  

SciTech Connect

The Remote-Handled Transuranic (RH-TRU) Content Codes (RH-TRUCON) document describes the inventory of RH-TRU waste within the transportation parameters specified by the Remote-Handled Transuranic Waste Authorized Methods for Payload Control (RH-TRAMPAC).1 The RH-TRAMPAC defines the allowable payload for the RH-TRU 72-B. This document is a catalog of RH-TRU 72-B authorized contents by site. A content code is defined by the following components: • A two-letter site abbreviation that designates the physical location of the generated/stored waste (e.g., ID for Idaho National Laboratory [INL]). The site-specific letter designations for each of the sites are provided in Table 1. • A three-digit code that designates the physical and chemical form of the waste (e.g., content code 317 denotes TRU Metal Waste). For RH-TRU waste to be transported in the RH-TRU 72-B, the first number of this three-digit code is “3.” The second and third numbers of the three-digit code describe the physical and chemical form of the waste. Table 2 provides a brief description of each generic code. Content codes are further defined as subcodes by an alpha trailer after the three-digit code to allow segregation of wastes that differ in one or more parameter(s). For example, the alpha trailers of the subcodes ID 322A and ID 322B may be used to differentiate between waste packaging configurations. As detailed in the RH-TRAMPAC, compliance with flammable gas limits may be demonstrated through the evaluation of compliance with either a decay heat limit or flammable gas generation rate (FGGR) limit per container specified in approved content codes. As applicable, if a container meets the watt*year criteria specified by the RH-TRAMPAC, the decay heat limits based on the dose-dependent G value may be used as specified in an approved content code. If a site implements the administrative controls outlined in the RH-TRAMPAC and Appendix 2.4 of the RH-TRU Payload Appendices, the decay heat or FGGR limits based on a 10-day shipping period (rather than the standard 60-day shipping period) may be used as specified in an approved content code. Requests for new or revised content codes may be submitted to the WIPP RH-TRU Payload Engineer for review and approval, provided all RH-TRAMPAC requirements are met.

Washington TRU Solutions

2007-07-01T23:59:59.000Z

66

Optical humidity sensors based on titania films fabricated by sol?gel and thermal evaporation methods  

Science Journals Connector (OSTI)

This paper reports a comparative study of an optical humidity sensor based on titania films fabricated by sol?gel and thermal evaporation methods. As semiconducting oxides are known for their n-type conduction because of the presence of oxygen vacancies, therefore they prove to be very good sensors for humidity. Sensing elements of the optical humidity sensor presented here consist of a rutile structured one-layered TiO2 thin film deposited on the base of an isosceles glass prism of thickness 1000 ?. This TiO2 film is porous and sensitive to humidity. The other sensing element consists of a film of the same material deposited by the thermal evaporation method on the base of a prism of the same thickness. Light from a He?Ne laser enters the prism from one of the isosceles faces of the prism and gets reflected from the glass?film interface, before emerging out from its other isosceles face. The emergent beam is collected through an optical fibre, which is connected to an optical power meter for measurement. Variations in the intensity of light caused by changes in humidity lying in the range of 5% RH to 95% RH have been recorded. A sensor fabricated by the thermal evaporation method shows better sensitivity than the sol?gel method. Scanning electron micrographs of both the films show that the film prepared by the thermal evaporation method is more porous and continuous than the film prepared by the sol?gel method, resulting in more sensitivity to humidity.

B C Yadav; N K Pandey; Amit K Srivastava; Preeti Sharma

2007-01-01T23:59:59.000Z

67

Humidity variations in the atmospheric surface layer  

E-Print Network (OSTI)

anemometer system used in this study, computed for five different wind speeds. 15 View from micrometeorologi cal tower towards the direction from which the wind was blowing for most of the runs select- ed. The left hand side is roughly 230' and the right... ASM Department of Meteorology by the Climatro- nics Corporation. The system consists of three sets of fast response wind, temperature, and relative humidity sensors, as well as a data acquisition system and a tape drive to store the data on magnetic...

Humphrey, Scott Richard

2012-06-07T23:59:59.000Z

68

Group 3: Humidity, Temperature, and Voltage (Presentation)  

SciTech Connect

Group 3 is chartered to develop accelerated stress tests that can be used as comparative predictors of module lifetime versus stresses associated with humidity, temperature and voltage.

Wohlgemuth, J.

2013-05-01T23:59:59.000Z

69

Data Center Economizer Contamination and Humidity Study  

E-Print Network (OSTI)

Program Data Center Economizer Contamination and Humiditylevels for computers. Air economizer cycles, which bring insites to determine how economizers affect humidity control.

Shehabi, Arman

2010-01-01T23:59:59.000Z

70

Low-Energy Nuclear Level Scheme of Rh104  

Science Journals Connector (OSTI)

Investigations of the low-energy level properties (level energies, spins, and parities) of Rh104 have been undertaken from studies of the coincidence relationships existing between the low-energy capture gamma rays produced by thermal neutron capture in Rh103 using NaI(Tl) scintillation crystals as detectors. It is known from the decay scheme of the 4.4-min Rh104m isomer that Rh104 has energy levels at 52, 96, and 129 keV with spins and parities of 2-, 2+, and 5+, respectively. The data obtained in these investigations have been combined with the isomeric level data in order to determine the properties of several additional levels. Additional levels in Rh104 have been determined at the following energies, with the level spin and parity in parenthesis after the energy; 184 keV (1±), 192 keV (3+), 269 keV (3±), 450 keV, and either 229 keV (3+) or 325 keV (4+). These spin and parity assignments were made on the basis of a K internal conversion coefficient analysis of the coincidence data together with consideration of the relative cascade intensities. On the basis of the possible odd-proton and odd-neutron configurations open to the 184- and 269-keV levels, and considering the transition intensities to the lower levels, it was determined that the negative-parity assignment is most probable for both of these levels, with the levels having configuration assignments of (p32)(d52). The 192-keV level together with the 229- or 325-keV level most probably have either [(g92)5]72(d52)n or (g92)5(d52)n configurations. In fact, if it is the 229-keV level which does exist, as the available evidence might seem to indicate, then, since they both have spins and parities of 3+, the 192-keV level would have one of these configurations while the 229-keV level would have the other.

R. C. Greenwood

1963-01-01T23:59:59.000Z

71

Building Energy Software Tools Directory: Indoor Humidity Tools  

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

Indoor Humidity Tools Indoor Humidity Tools Indoor Humidity Tools logo. Integrated computer program intended to assist in diagnosing and solving problems of indoor air humidity and dryness. Indoor Humidity Tools is comprised of two sections: - Calculations provide humidity calculations. - Reference provides background information on humidity in convenient lookup formats, such as recommended indoor humidity levels for different types of spaces, against which calculations may be compared. Keywords indoor air humidity, dryness, condensation Validation/Testing N/A Expertise Required No special expertise required. Users first released in July 1997. Audience engineers, industrial hygienists and safety professionals, architects, building scientists, contractors, government air quality specialists, and

72

Chiral Degeneracy in Triaxial Rh104  

Science Journals Connector (OSTI)

Chiral doublet bands based on the ?g9/2??h11/2 configuration that achieve degeneracy at spin I=17 in the odd-odd triaxial Rh104 nucleus have been observed. Experimental verification of the interpretation has been tested against specific fingerprints of chirality in the intrinsic system.

C. Vaman; D. B. Fossan; T. Koike; K. Starosta; I. Y. Lee; A. O. Macchiavelli

2004-01-22T23:59:59.000Z

73

Humidity-controlled preparation of frozen-hydrated biological samples for cryogenic coherent x-ray diffraction microscopy  

SciTech Connect

Coherent x-ray diffraction microscopy (CXDM) has the potential to visualize the structures of micro- to sub-micrometer-sized biological particles, such as cells and organelles, at high resolution. Toward advancing structural studies on the functional states of such particles, here, we developed a system for the preparation of frozen-hydrated biological samples for cryogenic CXDM experiments. The system, which comprised a moist air generator, microscope, micro-injector mounted on a micromanipulator, custom-made sample preparation chamber, and flash-cooling device, allowed for the manipulation of sample particles in the relative humidity range of 20%-94%rh at 293 K to maintain their hydrated and functional states. Here, we report the details of the system and the operation procedure, including its application to the preparation of a frozen-hydrated chloroplast sample. Sample quality was evaluated through a cryogenic CXDM experiment conducted at BL29XUL of SPring-8. Taking the performance of the system and the quality of the sample, the system was suitable to prepare frozen-hydrated biological samples for cryogenic CXDM experiments.

Takayama, Yuki; Nakasako, Masayoshi [Department of Physics, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Kanagawa 223-8522 (Japan); RIKEN Harima Institute/SPring-8, 1-1-1 Kouto, Mikaduki, Sayo, Hyogo 679-5148 (Japan)

2012-05-15T23:59:59.000Z

74

Understanding of Ethanol Decomposition on Rh(111) From Density Functional Theory and Kinetic Monte Carlo Simulations  

SciTech Connect

Reaction mechanisms of ethanol decomposition on Rh(1 1 1) were elucidated by means of periodic density functional theory (DFT) calculations and kinetic Monte Carlo (KMC) simulations. We propose that the most probable reaction pathway is via CH{sub 3}CH{sub 2}O* on the basis of our mechanistic study: CH{sub 3}CH{sub 2}OH* {yields} CH{sub 3}CH{sub 2}O* {yields} CH{sub 2}CH{sub 2}O* {yields} CH{sub 2}CHO* {yields} CH{sub 2}CO* {yields} CHCO* {yields} CH* + CO* {yields} C* + CO*. In contrast, the contribution from the pathway via CH{sub 3}CHOH* is relatively small, CH{sub 3}CH{sub 2}OH* {yields} CH{sub 3}CHOH* {yields} CH{sub 3}CHO* {yields} CH{sub 3}CO* {yields} CH{sub 2}CO* {yields} CHCO* {yields} CH* + CO* {yields} C* + CO*. According to our calculations, one of the slow steps is the formation of the oxametallacycle CH{sub 2}CH{sub 2}O* species, which leads to the production of CHCO*, the precursor for C-C bond breaking. Finally, the decomposition of ethanol leads to the production of C and CO. Our calculations, for ethanol combustion on Rh, the major obstacle is not C-C bond cleavage, but the C contamination on Rh(1 1 1). The strong C-Rh interaction may deactivate the Rh catalyst. The formation of Rh alloys with Pt and Pd weakens the C-Rh interaction, easing the removal of C, and, as expected, in accordance with the experimental findings, facilitating ethanol combustion.

Liu, P.; Choi, Y.M.

2011-05-16T23:59:59.000Z

75

Case Study: Sick Building Syndrome in a Humid Climate  

E-Print Network (OSTI)

and evaluation; formaldehyde sampling; particulate sampling; bioaerosol sampling (consisting of nonviable and viable fungi spore sampling); carbon monoxide, carbon dioxide, temperature and relative humidity levels to be monitored over 12-hour periods on two... to the outside" (25). To date, no single satisfactory method is available to measure the amount of cigarette smoke present in a work space. Carbon monoxide and formaldehyde levels were monitored throughout the second and fourth floors to attempt...

Shaughnessy, R. J.; Levetin, E.

1990-01-01T23:59:59.000Z

76

Wall Drying in Hot and Humid Climates  

E-Print Network (OSTI)

Moisture and subsequent mold problems in buildings are a serious and increasing concern for the building industry. Moisture intrusion in buildings is especially pertinent in hot and humid climates because the climate conditions provide only limited...

Boone, K.; Weston, T.; Pascual, X.

2004-01-01T23:59:59.000Z

77

Lanthanide-halide based humidity indicators  

DOE Patents (OSTI)

The present invention discloses a lanthanide-halide based humidity indicator and method of producing such indicator. The color of the present invention indicates the humidity of an atmosphere to which it is exposed. For example, impregnating an adsorbent support such as silica gel with an aqueous solution of the europium-containing reagent solution described herein, and dehydrating the support to dryness forms a substance with a yellow color. When this substance is exposed to a humid atmosphere the water vapor from the air is adsorbed into the coating on the pore surface of the silica gel. As the water content of the coating increases, the visual color of the coated silica gel changes from yellow to white. The color change is due to the water combining with the lanthanide-halide complex on the pores of the gel.

Beitz, James V. (Hinsdale, IL); Williams, Clayton W. (Chicago, IL)

2008-01-01T23:59:59.000Z

78

High-spin level structure of {sup 115}Rh: Evolution of triaxiality in odd-even Rh isotopes  

SciTech Connect

High-spin excited states in the neutron-rich nucleus {sup 115}Rh have been identified for the first time by studying prompt {gamma} rays from the spontaneous fission of {sup 252}Cf with the Gammasphere detector array. A new yrast band and a sideband are built in {sup 115}Rh. This level scheme is proposed to be built on the 7/2{sup +} ground state. The existence of a large signature splitting and an yrare band in {sup 115}Rh shows typical features of a triaxially deformed nucleus. The rigid triaxial rotor plus particle model is used to interpret the level structure of {sup 115}Rh. The level energies, the {gamma} branching ratios, the large signature splitting in the yrast band, and the inverted signature splitting in the yrare band in {sup 115}Rh are reproduced very well. Strong K mixing occurs in {sup 115}Rh at high spin.

Liu, S. H. [Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235 (United States); UNIRIB/Oak Ridge Associated Universities, Oak Ridge, Tennessee 37831 (United States); Hamilton, J. H.; Ramayya, A. V.; Brewer, N. T.; Hwang, J. K. [Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235 (United States); Gelberg, A. [Institut fuer Kernphysik, Universitaet zu Koeln, D-50937 Cologne (Germany); Gu, L.; Yeoh, E. Y.; Zhu, S. J. [Department of Physics, Tsinghua University, Beijing 100084 (China); Luo, Y. X. [Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235 (United States); Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Rasmussen, J. O. [Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Ma, W. C. [Department of Physics and Astronomy, Mississippi State University, Mississippi State, Mississippi 39762 (United States); Daniel, A. V. [Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235 (United States); Joint Institute for Nuclear Research, RU-141980 Dubna (Russian Federation); Oganessian, Yu. Ts.; Ter-Akopian, G. M. [Joint Institute for Nuclear Research, RU-141980 Dubna (Russian Federation)

2011-07-15T23:59:59.000Z

79

Coil Condensation Detection For Humidity Control  

E-Print Network (OSTI)

.......................................................................... 81 x Figure (7.1) Components of Impedance ....................................................................... 85 Figure (7.2) Drawing of Square Wave Circuit ............................................................... 87 Figure (7... .................................................................................... 109 Figure (8.5) Langford A Test Shows Slow Response ................................................. 111 Figure (8.6) Humidity Ratio and Latent Enthalpy vs Dew Point .................................. 118 xi Figure (8.7) Time versus Temperature...

Kaneb, Charles Peckitt

2014-05-12T23:59:59.000Z

80

HCH-1000 Series Capacitive Humidity Sensor  

E-Print Network (OSTI)

www.honeywell.com/sensing SPECIFICATIONS (TA= 25 ºC [77 ºF], Input Voltage = 1 VRMS, Frequency = 20 k: TEMPERATURE CHARACTERISTICS (At 1 VRMS and 20 kHz) #12;Capacitive Humidity Sensors Honeywell Sensing TEST SYSTEM DIAGRAM #12;Sensing and Control 1985 Douglas Drive North Minneapolis, MN 55422 www.honeywell

Rowe, Anthony

Note: This page contains sample records for the topic "relative humidity rh" 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

Data Center Economizer Contamination and Humidity Study  

E-Print Network (OSTI)

and potential loss of humidity control. Concerns about equipment failure from airborne pollutants lead 42 #12;Executive Summary Data centers require continuous air conditioning to address high internal levels for computers. Air economizer cycles, which bring in large amounts of outside air to cool internal

82

Anomalous emissions of 103mRh biphoton transitions  

E-Print Network (OSTI)

In this report, the anomalous emissions, centered on the one half transition energy 39.76/2 keV, are observed from the long-lived Mossbauer state of 103mRh excited by bremsstrahlung exposure. Strong coupling with identical nuclei in Rh crystals opens cascade channels for biphoton transitions.

Yao Cheng; Bing Xia

2009-08-06T23:59:59.000Z

83

Determination of the proton separation energy of Rh93 from mass measurements  

Science Journals Connector (OSTI)

The proposed ?p process, which occurs in the early time proton-rich neutrino winds of core-collapse supernovae, has the potential to resolve the long-standing uncertainty in the production of the light p-nuclei Mo92 and Mo94. A recent study incorporating this ?p process has indicated that the proton separation energy Sp of Rh93 is especially important in determining the relative production of these two isotopes. To reproduce the observed solar Mo92/Mo94 abundance ratio of 1.57 a Sp value for Rh93 of 1.64±0.1 MeV is required. The previously unknown masses of Ru92 and Rh93 have been measured with the Canadian Penning Trap mass spectrometer resulting in an experimental value for Sp(Rh93) of 2.007±0.009 MeV. This implies that with our current understanding of the conditions in core-collapse supernova explosions the ?p process is not solely responsible for the observed solar Mo92/Mo94 abundance ratio.

J. Fallis et al.

2008-08-13T23:59:59.000Z

84

A Comparative Study between Co and Rh for Steam Reforming of...  

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

between Co and Rh for Steam Reforming of Ethanol. A Comparative Study between Co and Rh for Steam Reforming of Ethanol. Abstract: Rh and Co-based catalyst performance was compared...

85

Evaluation of ANSI N42-17A by investigating the effects of temperature and humidity on the response of radiological instruments  

SciTech Connect

The American National Standards Institute (ANSI) N42.17A-1989 standard`s performance criteria and test methods has been evaluated by investigating the effects of temperature and humidity on the response of 105 portable direct-reading radiological instruments (45 beta-gamma survey meters, 32 neutron rem meters, 1O alpha contamination and 18 tritium-in-air monitors). The US Department of Energy (DOE) mandates the use of ANSI standards for the calibration and performance testing of radiological instruments, and requires that instruments be appropriate for existing environmental conditions. Random tests conducted in an environmental chamber determined the effects of temperatures ranging from {minus}10{degree}C to 50{degree}C and humidity at levels of 40% RH and 95% RH on the response of a cross section of instruments used in routine health physics operations at Los Alamos. The following instruments were tested: Eberline RO-2 and RO-C ionization chambers, Eberline E-530 survey meter with the Model HP-C stainless steel Geiger-Muller (G) wall probe, Eberline PIC-6A and PIC-6B ion chambers, Eberline ESP-1 survey meter with the Model HP-260 pancake G detector, Ludlum 3 survey meter with the Model 44-6 stainless steel G wall probe, Eberline ESP-1, ESP-2 and PAR-4 survey meters with the neutron rem detector, Health Physics Instruments 2080 survey meter with the moderator detector, Ludlum 139 survey meter with the Model 43-32 air-proportional alpha detector, and the Overhoff 394-C, Johnston J-111 and J-110 tritium monitors. Experimental results encompass 1128 temperature tests (1269-hours exposure in the chamber) and 735 humidity tests (1890-hours exposure in the chamber). The study shows the standard`s test requirement for temperature at or near the extreme conditions, and the standard`s test requirement for humidity at 95% RH may be too restrictive for instruments used in the work environment.

Clement, R.S.

1995-06-01T23:59:59.000Z

86

Water channel structure of bassanite at high air humidity: crystal structure of CaSO4·0.625H2O  

Science Journals Connector (OSTI)

In the presence of high relative air humidity the crystal structure of CaSO4·0.5H2O transforms due to the incorporation of additional water of hydration. The crystal structure of CaSO4·0.625H2O was solved by single-crystal X-ray diffraction at 298 K with 75% relative air humidity.

Schmidt, H.

2011-11-17T23:59:59.000Z

87

Correlating Humidity-Dependent Ionically Conductive Surface Area with Transport Phenomena in Proton-Exchange Membranes  

SciTech Connect

The objective of this effort was to correlate the local surface ionic conductance of a Nafion? 212 proton-exchange membrane with its bulk and interfacial transport properties as a function of water content. Both macroscopic and microscopic proton conductivities were investigated at different relative humidity levels, using electrochemical impedance spectroscopy and current-sensing atomic force microscopy (CSAFM). We were able to identify small ion-conducting domains that grew with humidity at the surface of the membrane. Numerical analysis of the surface ionic conductance images recorded at various relative humidity levels helped determine the fractional area of ion-conducting active sites. A simple square-root relationship between the fractional conducting area and observed interfacial mass-transport resistance was established. Furthermore, the relationship between the bulk ionic conductivity and surface ionic conductance pattern of the Nafion? membrane was examined.

He, Qinggang; Kusoglu, Ahmet; Lucas, Ivan T.; Clark, Kyle; Weber, Adam Z.; Kostecki, Robert

2011-08-01T23:59:59.000Z

88

Synthesis, structure and properties of Li{sub 2}Rh{sub 3}B{sub 2}  

SciTech Connect

Li{sub 2}Rh{sub 3}B{sub 2} has been synthesized at 1000 deg. C from a stoichiometric mix of rhodium and boron and an excess of lithium. Li{sub 2}Rh{sub 3}B{sub 2} crystallizes in the orthorhombic space group Pbam (no. 55, Z=2) with room temperature lattice constants a=5.7712(1) A, b=9.4377(2) A, c=2.8301(1) A and cell volume 154.149(6) A{sup 3}. The structure was solved from single crystal X-ray diffraction yielding the final R indices (all data) R1=2.8% and wR2=4.7%. The structure is a distortion of the CeCo{sub 3}B{sub 2} structure type, containing a network of Rh{sub 6}B trigonal prisms and short Li-Li contacts of 2.28(2) A. Li{sub 2}Rh{sub 3}B{sub 2} is a diamagnetic metal with a room temperature resistivity of 19 {mu}{omega} cm, as determined by magnetic susceptibility and single crystal transport measurements. The measured diamagnetism and electronic structure calculations show that Li{sub 2}Rh{sub 3}B{sub 2} contains rhodium in a d {sup 10} configuration. - Graphical abstract: Li{sub 2}Rh{sub 3}B{sub 2}, a diamagnetic metal, has been synthesized from a lithium flux. It adopts a distortion of the CeCo{sub 3}B{sub 2} structure type and is closely related to the 3 K superconductor, LaRh{sub 3}B{sub 2}. Pairs of lithium ions (white) fill the channels formed by rhodium-boron trigonal prisms (gray)

Bailey, Mark S. [Materials Science Division, Argonne National Laboratory, Argonne, IL 60439 (United States)], E-mail: mbailey@anl.gov; Lobkovsky, Emil B. [Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853 (United States); Hinks, David G. [Materials Science Division, Argonne National Laboratory, Argonne, IL 60439 (United States); Claus, Helmut [Materials Science Division, Argonne National Laboratory, Argonne, IL 60439 (United States); Hor, Yew San [Materials Science Division, Argonne National Laboratory, Argonne, IL 60439 (United States); Schlueter, John A. [Materials Science Division, Argonne National Laboratory, Argonne, IL 60439 (United States); Mitchell, John F. [Materials Science Division, Argonne National Laboratory, Argonne, IL 60439 (United States)], E-mail: mitchell@anl.gov

2007-04-15T23:59:59.000Z

89

Effect of relative humidity on fungal colonization of fiberglass insulation.  

Science Journals Connector (OSTI)

...on fungal colonization of fiberglass insulation. I M Ezeonu J A Noble R B Simmons D...on fungal colonization of fiberglass insulation. | Fiberglass duct liners and fiberglass...on Fungal Colonization of Fiberglass Insulation I. M. EZEONU,1 J. A. NOBLE...

I M Ezeonu; J A Noble; R B Simmons; D L Price; S A Crow; D G Ahearn

1994-06-01T23:59:59.000Z

90

An Analytical Model for Tropical Relative Humidity DAVID M. ROMPS  

E-Print Network (OSTI)

the distribution of water vapor will change with warming. Water vapor is the atmosphere's most powerful greenhouse gas, and changes in its distribution can have significant implications for radiative forcing. A first

Romps, David M.

91

Effects of Temperature and Humidity on Wilethane 44 Cure  

SciTech Connect

Wilethane 44 is a polyurethane adhesive developed by the Materials Team within ESA-MEE at Los Alamos National Laboratory as a replacement for Hexcel Corporation Urethane 7200. Urethane 7200 is used in numerous weapon systems, but it was withdrawn from the market in 1989. The weapons complex requires a replacement material for use in the W76-1 LEP and the W88, as well as for assembly of JTAs for other warheads. All polyurethane systems are susceptible to moisture reacting with unreacted isocyanate groups. This side reaction competes with the curing reaction and results in CO{sub 2} formation. Therefore, a polyurethane adhesive can exhibit foaming if appropriate environmental controls are not in place while it cures. A designed experiment has been conducted at TA-16-304 to determine the effects of ambient conditions on the properties of cured Wilethane 44. Temperature was varied from 15 C to 30 C and relative humidity from 15% to 40%. The density, hardness at 24 hours, and butt tensile strength on aluminum substrates were measured and fitted to quadratic equations over the experimental space. Additionally, the loss and storage moduli during cure were monitored as a function of cure temperature. These experiments provide a stronger basis for establishing appropriate environmental conditions and cure times when using Wilethane 44. The current guidelines are a working time of 90 minutes, a cure time of 18 hours, and a relative humidity of less than 25%, regardless of ambient temperature. Viscosity measurements revealed that the working time is a strong function of temperature and can be as long as 130 minutes at 15 C or as short as 90 minutes at 30 C. The experiments also showed that the gel time is much longer than originally thought, as long as 13 hours at 15 C. Consequently, it may be necessary to extend the required cure time at temperatures below 20 C. Allowable humidity varies as a function of temperature from 34% at 15 C to 15% at 30 C.

John C. Weigle

2006-10-01T23:59:59.000Z

92

Conquering Moisture and Humidity in Your Home | Department of...  

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

a professional if it is a large leak. Decrease indoor humidity by installing a polyethylene ground cover in crawl spaces, using ventilation fans in kitchens and bathrooms, and...

93

Impact of Vaisala Radiosonde Humidity Corrections on ARM IOP...  

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

dry bias in Vaisala radiosonde humidity measurements has been noted in comparison to satellite water vapor retrievals (Soden and Lanzante 1996) and Raman lidar measurements...

94

Proceedings: Electric dehumidification: State-of-the-art humidity control for supermarkets seminar  

SciTech Connect

On October 9--10 1990, EPRI sponsored a conference in New Orleans, Louisiana on Electric Dehumidification: State of the Art Humidity Control for Supermarkets. The conference was attended by 124 electric utility, manufacturer, supermarket industry and consultant representatives. Attendees heard 17 speakers address efficient electric technologies for controlling relative humidity, and the importance of humidity control in the supermarket environment. Speakers addressed efficient electric technologies as well as gas desiccant systems. The management of energy use in supermarkets is a complex task. Energy costs are a major part of the supermarket operating budget, and the supermarket business is one where small differences in operating costs can make the difference between profit and loss. Energy use is dominated by refrigeration and HVAC, and the control of energy costs is dependent on the successful management of the interaction between these two systems. Humidity control in supermarkets is critical because of the presence of refrigerated display cases. Excess humidity causes display case fixture sweating and refrigeration coil and product frosting, requires frequent defrosting, and increased energy use for antisweat heaters and refrigeration. The conventional approach to dehumidification in an all-electric system is overcooling to condense moisture and reheat to bring the air to a comfortable temperature. This approach, while effective in less demanding environments, results in high electric energy costs for the humidity control necessary in supermarkets. Speakers in the introductory session of the conference explained the importance of electric energy for the supermarket; discussed modern refrigeration systems; and set the stage for more detailed discussion of specific dehumidification systems.

Not Available

1992-10-01T23:59:59.000Z

95

Moisture performance of sealed attics in the mixed-humid climate  

SciTech Connect

Oak Ridge National Laboratory studied 8 homes in the mixed-humid climate, 4 with vented attics and 4 with sealed attics. ORNL wanted to understand the moisture performance of the sealed attic and how it affected the interior environment. We found that the attic and interior of sealed attic homes were more humid than the attic and interior observed in vented attic homes. This is due to the lack of ventilation in the sealed attic. Historically attics have been vented to dehumidify the attic and interior of the home. A sealed attic design greatly reduces the venting potential and thus this drying pathway and can cause elevated interior moisture over a vented attic home. Despite the elevated attic and interior moisture in the sealed attic homes, so far no mold or material degradation has been found. The roof sheathing moisture content has stayed below 20%, indicating low potential for material degradation. Also the relative humidity at the roof sheathing has stayed within the ASHRAE 160 design criteria except for a short time during the 2011/2012 winter. This was due to a combination of the sealed attic design (minimal venting to the outside) and the duct work not being operated in the attic which usually provides a dehumidification pathway. It was also found that when the humidity was controlled using the HVAC system, it resulted in 7% more cooling energy consumption. In the mixed-humid climate this reduces the cost effectiveness of the sealed attic design as a solution for bringing ducts into a semi-conditioned space. Because of this we are recommending the other alternatives be used to bringing ducts into the conditioned space in both new construction and retrofit work in the mixed-humid climate.

Boudreaux, Philip R [ORNL] [ORNL; Pallin, Simon B [ORNL] [ORNL; Jackson, Roderick K [ORNL] [ORNL

2013-12-01T23:59:59.000Z

96

Electric Field and Humidity Trigger Contact Electrification  

E-Print Network (OSTI)

Here, we study the old problem of why identical insulators can charge one another on contact. We perform several experiments showing that, if driven by a preexisting electric field, charge is transferred between contacting insulators. This happens because the insulator surfaces adsorb small amounts of water from a humid atmosphere. We believe the electric field then separates positively from negatively charged ions prevailing within the water, which we believe to be hydronium and hydroxide ions, such that at the point of contact, positive ions of one insulator neutralize negative ions of the other one, charging both of them. This mechanism can explain for the first time the observation made four decades ago that wind-blown sand discharges in sparks if and only if a thunderstorm is nearby.

Zhang, Yanzhen; Liu, Yonghong; Wang, Xiaolong; Zhang, Rui; Shen, Yang; Ji, Renjie; Cai, Baoping

2015-01-01T23:59:59.000Z

97

Electric Field and Humidity Trigger Contact Electrification  

E-Print Network (OSTI)

Here, we study the old problem of why identical insulators can charge one another on contact. We perform several experiments showing that, if driven by a preexisting electric field, charge is transferred between contacting insulators. This happens because the insulator surfaces adsorb small amounts of water from a humid atmosphere. We believe the electric field then separates positively from negatively charged ions prevailing within the water, which we believe to be hydronium and hydroxide ions, such that at the point of contact, positive ions of one insulator neutralize negative ions of the other one, charging both of them. This mechanism can explain for the first time the observation made four decades ago that wind-blown sand discharges in sparks if and only if a thunderstorm is nearby.

Yanzhen Zhang; Thomas Pähtz; Yonghong Liu; Xiaolong Wang; Rui Zhang; Yang Shen; Renjie Ji; Baoping Cai

2015-01-14T23:59:59.000Z

98

Ceramic thick film humidity sensor based on MgTiO{sub 3} + LiF  

SciTech Connect

Graphical abstract: - Highlights: • The fabricated sensor based on MgTiO{sub 3} + LiF materials used the spin coating technology. • The response time is 70 s to detect variation between 5 and 95% relative humidity. • The addition of Scleroglucan controls the viscosity and decreases the roughness of thick film surface. • This humidity sensor is a promising, low-cost, high-quality, reliable ceramic films, that is highly sensitive to humidity. - Abstract: The feasibility of humidity sensor, consisting of a thick layer of MgTiO{sub 3}/LiF materials on alumina substrate, was studied. The thermal analysis TGA-DTGA and dilatometric analysis worked out to confirm the sintering temperature. An experimental plan was applied to describe the effects of different parameters in the development of the thick film sensor. Structural and microstructural characterizations of the developed thick film were made. Rheological study with different amounts of a thickener (scleroglucan “sclg”), showing the behavior variation, as a function of sclg weight % was illustrated and rapprochement with the results of thickness variation as a function of angular velocity applied in the spin coater. The electrical and dielectric measurements confirmed the sensitivity of the elaborated thick film against moisture, along with low response time.

Kassas, Ahmad, E-mail: a.kassas.mcema@ul.edu.lb [Faculty of Agricultural Engineering and Veterinary Medicine, Laboratory of Materials, Catalysis, Environment and Analytical Methods (MCEMA), Faculty of Sciences and Doctoral School of Sciences and Technology (EDST), Lebanese University, Hariri Campus, Hadath, Beirut (Lebanon); Laboratoire Universitaire des Sciences Appliquées de Cherbourg (LUSAC), 50130 Cherbourg-Octeville (France); Bernard, Jérôme; Lelièvre, Céline; Besq, Anthony; Guhel, Yannick; Houivet, David; Boudart, Bertrand [Laboratoire Universitaire des Sciences Appliquées de Cherbourg (LUSAC), 50130 Cherbourg-Octeville (France); Lakiss, Hassan [Faculty of Agricultural Engineering and Veterinary Medicine, Laboratory of Materials, Catalysis, Environment and Analytical Methods (MCEMA), Faculty of Sciences and Doctoral School of Sciences and Technology (EDST), Lebanese University, Hariri Campus, Hadath, Beirut (Lebanon); Faculty of Engineering, Section III, Hariri Campus, Hadath, Beirut (Lebanon); Hamieh, Tayssir [Faculty of Agricultural Engineering and Veterinary Medicine, Laboratory of Materials, Catalysis, Environment and Analytical Methods (MCEMA), Faculty of Sciences and Doctoral School of Sciences and Technology (EDST), Lebanese University, Hariri Campus, Hadath, Beirut (Lebanon)

2013-10-15T23:59:59.000Z

99

Rh and Pt catalysts activated by UHV treatments  

Science Journals Connector (OSTI)

The H2?D2...exchange activity of Rh powder was enhanced by high-temperature UHV treatment accompanied with an enrichment of the...2PtCl6·6H2O under UHV condition resulted in an extremely active Pt...

S. Nishiyama; K. Yoshioka; S. Matsuura…

1987-01-01T23:59:59.000Z

100

Ethanol synthesis from syngas over Rh-based/SiO2 catalysts: A...  

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

over Rh-basedSiO2 catalysts: A combined experimental and theoretical modeling study. Ethanol synthesis from syngas over Rh-basedSiO2 catalysts: A combined experimental and...

Note: This page contains sample records for the topic "relative humidity rh" from the National Library of EnergyBeta (NLEBeta).
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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

RH-TRU Waste Inventory Characterization by AK and Proposed WIPP RH-TRU Waste Characterization Objectives  

SciTech Connect

The U.S. Department of Energy (DOE)-Carlsbad Field Office (CBFO) has developed draft documentation to present the proposed Waste Isolation Pilot Plant (WIPP) remote-handled (RH-) transuranic (TRU) waste characterization program to its regulators, the U.S. Environmental Protection Agency and the New Mexico Environment Department. Compliance with Title 40, Code of Federal Regulations, Parts 191 and 194; the WIPP Land Withdrawal Act (PL 102-579); and the WIPP Hazardous Waste Facility Permit, as well as the Certificates of Compliance for the 72-B and 10-160B Casks, requires that specific waste parameter limits be imposed on DOE sites disposing of TRU waste at WIPP. The DOE-CBFO must control the sites' compliance with the limits by specifying allowable characterization methods. As with the established WIPP contact handled TRU waste characterization program, the DOE-CBFO has proposed a Remote-Handled TRU Waste Acceptance Criteria (RH-WAC) document consolidating the requirements from various regulatory drivers and proposed allowable characterization methods. These criteria are consistent with the recommendation of a recent National Academy Sciences/National Research Council to develop an RH-TRU waste characterization approach that removes current self imposed requirements that lack a legal or safety basis. As proposed in the draft RH-WAC and other preliminary documents, the DOE-CBFO RH-TRU waste characterization program proposes the use of acceptable knowledge (AK) as the primary method for obtaining required characterization information. The use of AK involves applying knowledge of the waste in light of the materials or processes used to generate the waste. Documentation, records, or processes providing information about various attributes of a waste stream, such as chemical, physical, and radiological properties, may be used as AK and may be applied to individual waste containers either independently or in conjunction with radiography, visual examination, assay, and other sampling and analytical data. RH-TRU waste cannot be shipped to WIPP on the basis of AK alone if documentation demonstrating that all of the prescribed limits in the RH-WAC are met is not available, discrepancies exist among AK source documents describing the same waste stream and the most conservative assumptions regarding those documents indicates that a limit will not be met, or all required data are not available for a given waste stream.

Most, W. A.; Kehrman, R.; Gist, C.; Biedscheid, J.; Devarakonda, J.; Whitworth, J.

2002-02-26T23:59:59.000Z

102

Reducing NOx emissions using the humid air motor concept  

Science Journals Connector (OSTI)

The use of water to prevent NOx...formation during the combustion process is well known. The H.A.M. system (Humid Air Motor) is an original and promising solution compared ... . This system involves evaporating l...

Emmanuel Riom; Lars-Ola Larsson; Ulf Hagström

2002-05-01T23:59:59.000Z

103

Maintaining Space Temperature and Humidity in the Digital Switch Environment  

E-Print Network (OSTI)

laboratory College Station, Texas ABSTRACT A methodology for a psychrometric analysis of the problem of maintaining space temperature and humidity in the digital switch environment is presented. Such spaces produce minimum or no humidity generation. Several... must be considered. The intent of this paper is to outline a simple methodology to compute cooling and Henry Johnstone, P.E. Mechanical Engineer GLHN, Inc. Tucson, Arizona humidification loads at any location, using a variety of techniques for space...

Saman, N. F.; Johnson, H.

104

Building America Indoor Temperature and Humidity Measurement Protocol  

SciTech Connect

When modeling homes using simulation tools, the heating and cooling set points can have a significant impact on home energy use. Every 4 years the Energy Information Administration (EIA) Residential Energy Consumption Survey (RECS) asks homeowners about their heating and cooling set points. Unfortunately, no temperature data is measured, and most of the time, the homeowner may be guessing at this number. Even one degree Fahrenheit difference in heating set point can make a 5% difference in heating energy use! So, the survey-based RECS data cannot be used as the definitive reference for the set point for the 'average occupant' in simulations. The purpose of this document is to develop a protocol for collecting consistent data for heating/cooling set points and relative humidity so that an average set point can be determined for asset energy models in residential buildings. This document covers the decision making process for researchers to determine how many sensors should be placed in each home, where to put those sensors, and what kind of asset data should be taken while they are in the home. The authors attempted to design the protocols to maximize the value of this study and minimize the resources required to achieve that value.

Engebrecht-Metzger, C.; Norton, P.

2014-02-01T23:59:59.000Z

105

ZnO Thick Film Based Opto-electronic Humidity Sensor for a Wide Range of Humidity  

Science Journals Connector (OSTI)

Sensitivity of zinc oxide film to humidity is studied using prism based opto-electronic sensor configuration. Film is deposited on the base of the prism by screen printing. The film is crystalline in nature an...

Shobhna Dixit; Anchal Srivastava; R. K. Shukla; Atul Srivastava

106

Ferromagnetism at the interfaces of antiferromagnetic FeRh epilayers  

SciTech Connect

The nanoscale magnetic structure of FeRh epilayers has been studied by polarized neutron reflectometry. Epitaxial films with a nominal thickness of 500 {angstrom} were grown on MgO (001) substrates via molecular-beam epitaxy and capped with 20 {angstrom} of MgO. The FeRh films show a clear transition from the antiferromagnetic (AF) state to the ferromagnetic (FM) state with increasing temperature. Surprisingly the films possess a FM moment even at a temperature 80 K below the AF-FM transition temperature of the film. We have quantified the magnitude and spatial extent of this FM moment, which is confined to within {approx}60-80 {angstrom} of the FeRh near the top and bottom interfaces. These interfacial FM layers account for the unusual effects previously observed in films with thickness <100 {angstrom}. Given the delicate energy balance between the AF and FM ground states we suggest a metastable FM state resides near to the interface within an AF matrix. The length scale over which the FM region resides is consistent with the strained regions of the film.

Fan, P.; Arena, D.; Kinane, C.J.; Charlton, T.R.; Dorner, R.; Ali, M.; de Vries, A. de.; Brydson, R.M.D.; Marrows, C.H.; Hickey, B.J.; Tanner, B.K.; Nisbet, G.; and Langridge, S.

2010-07-15T23:59:59.000Z

107

Humidity effects on tip-induced polarization switching in lithium niobate  

SciTech Connect

In the last several decades, ferroelectrics have attracted much attention as perspective materials for nonlinear optics and data storage devices. Scanning probe microscopy (SPM) has emerged as a powerful tool both for studies of domain structures with nanoscale spatial resolution and for writing the isolated nanodomains by local application of the electric field. Quantitative analysis of the observed behavior requires understanding the role of environmental factors on imaging and switching process. Here we study the influence of the relative humidity in the SPM chamber on tip-induced polarization switching. The observed effects are attributed to existence of a water meniscus between the tip and the sample surface in humid atmosphere. These results are important for a deeper understanding of complex investigations of ferroelectric materials and their applications, and suggest the necessity for fundamental studies of electrocapillary phenomena at the tip-surface junction and their interplay with bias-induced materials responses.

Ievlev, Anton [ORNL] [ORNL; Morozovska, A. N. [National Academy of Science of Ukraine, Kiev, Ukraine] [National Academy of Science of Ukraine, Kiev, Ukraine; Shur, Vladimir Ya. [Ural Federal University, Russia] [Ural Federal University, Russia; Kalinin, Sergei V [ORNL] [ORNL

2014-01-01T23:59:59.000Z

108

Interim Storage of RH-TRU 72B Canisters at the DOE Oak Ridge Reservation  

SciTech Connect

This paper describes an evaluation performed by the Department of Energy (DOE) Oak Ridge Operations (ORO) office for potential interim storage of remote-handled (RH) transuranic (TRU) 72B waste canisters at the Oak Ridge National Laboratory (ORNL). The evaluation included the conceptual design of a devoted canister storage facility and an assessment of the existing RHTRU waste storage facilities for storage of canisters. The concept for the devoted facility used modular concrete silos located on an above-grade storage pad. The assessment of the existing facilities considered the potential methods, facility modifications, and conceptual equipment that might be used for storage of 400 millisievert per hour (mSv/hr) canisters. The results of the evaluation indicated that the initial investment into a devoted facility was relatively high as compared to the certainty that significant storage capacity was necessary prior to the Waste Isolation Pilot Plant (WIPP) accepting RH-TRU waste for disposal. As an alternative, the use of individual concrete overpacks provided an incremental method that could be used with the existing storage facilities and outside storage pads. For the concrete overpack concepts considered, the cylindrical design stored in a vertical orientation was determined to be the most effective.

Forrester, T. W.; Hunt, R. A.; Riner, G. L.

2002-02-26T23:59:59.000Z

109

Ethanol electro-oxidation on partially alloyed Pt-Sn-Rh/C catalysts  

Science Journals Connector (OSTI)

Abstract Ternary Pt-Sn-Rh/C catalysts of Pt:Sn:Rh = 1:0.8:0.2 and 1:1:0.33 atomic ratios were synthesized using the formic acid method and their electrochemical activities were compared for ethanol oxidation with that of binary Pt-Sn/C (1:1) and Pt-Rh/C (1:0.11) catalysts. XRD analysis indicated the presence of Sn in both alloyed and oxide form and suggested the formation of a ternary Pt-Sn-Rh alloy in both catalysts. The particle size by TEM was around 3.5 nm for all catalysts. The efficiency for Pt utilization increased with Rh content. Pt-Sn-Rh/C catalysts exhibited higher catalytic activity for ethanol oxidation than Pt-Rh/C, but lower than Pt-Sn/C. Among ternary catalysts, Pt-Sn-Rh/C (1:0.8:0.2) was the most active. In situ IRRAS showed Rh plays a dual counteracting role during ethanol electro-oxidation on Pt-Sn-Rh/C catalysts, once it promotes C-C bond breaking, thus favouring CO2 formation, but hinders adsorption of ethanol, decreasing the production of acetic acid.

Elson A. de Souza; M.Janete Giz; Giuseppe A. Camara; Ermete Antolini; Raimundo R. Passos

2014-01-01T23:59:59.000Z

110

Relationalism  

E-Print Network (OSTI)

This article contributes to the debate of the meaning of relationalism and background independence, which has remained of interest in theoretical physics from Newton versus Leibniz through to foundational issues for today's leading candidate theories of quantum gravity. I contrast and compose the substantially different Leibniz--Mach--Barbour (LMB) and Rovelli--Crane (RC) uses of the word `relational'. Leibniz advocated primary timelessness and Mach that `time is to be abstracted from change'. I consider 3 distinct viewpoints on Machian time: Barbour's, Rovelli's and my own. I provide four expansions on Barbour's taking configuration space to be primary: to (perhaps a weakened notion of) phase space, categorizing, perspecting and propositioning. Categorizing means considering not only object spaces but also the corresponding morphisms and then functors between such pairs. Perspecting means considering the set of subsystem perspectives; this is an arena in which the LMB and Rovelli approaches make contact. By propositioning, I mean considering the set of propositions about a physical (sub)system. I argue against categorization being more than a formal pre-requisite for quantization in general; however, perspecting is a categorical operation, and propositioning leads one to considering topoi, with Isham and Doering's work represents one possibility for a mathematically sharp implementation of propositioning. Further applications of this article are arguing for Ashtekar variables as being relational in LMB as well as just the usually-ascribed RC sense, relationalism versus supersymmetry, string theory and M-theory. The question of whether scale is relational is also considered, with quantum cosmology in mind.

Edward Anderson

2014-07-15T23:59:59.000Z

111

Stability of Ruddlesden–Popper-structured oxides in humid conditions  

SciTech Connect

Some of layered transition-metal oxides are known to react with atmospheric humidity to form through topotactic intercalation reactions new water-containing layered structures. Here we investigate the influence of oxygen content (7??) of the Ruddlesden–Popper-structured Sr{sub 3}FeMO{sub 7??} (M=Ni, Mn, Ti) oxides on the water-intercalation reaction. It is found that their oxygen contents influence greatly the reactivity of the phases with water. Other factors possibly affecting the reactivity are discussed on the basis of the present data in combination with a comprehensive review of previous works on Ruddlesden–Popper and related layered oxide phases. - Graphical abstract: Many of the Ruddlesden–Popper-structured A{sub 3}B{sub 2}O{sub 7??} oxides readily react with water via intercalation reactions. Three possible factors affecting the water intercalation are identified: oxygen content of the phase, ionic radius of cation A and valence state of cation B. The resultant layered water-derivative phases can be categorised into two groups, depending on the crystal symmetry of the phase. Highlights: • Ruddlesden–Popper oxides A{sub 3}B{sub 2}O{sub 7??} often accommodate water via intercalation reaction. • The lower the oxygen content 7?? is the more readily the intercalation reaction occurs. • The second factor promoting the reaction is the large size of cation A. • The third possible factor is the high valence state of cation B. • Resultant water-derivatives can be categorised into two groups depending on symmetry.

Lehtimäki, M.; Yamauchi, H.; Karppinen, M., E-mail: maarit.karppinen@aalto.fi

2013-08-15T23:59:59.000Z

112

A Quick Overview of the Art of Humidity Measurement  

E-Print Network (OSTI)

if the material remains too long at one humidity. DEW POINT SENSORS Dew point sensors fall into two broad categories; chilled mirror, and dew cell. In a chilled mirror sensor a thermoelectric heat pump (a type of solid state refrigerator) is used to cool a... if the material remains too long at one humidity. DEW POINT SENSORS Dew point sensors fall into two broad categories; chilled mirror, and dew cell. In a chilled mirror sensor a thermoelectric heat pump (a type of solid state refrigerator) is used to cool a...

Brownawell, M.

113

Cd doping effects in the heavy-fermion compounds Ce2MIn8 (M=Rh and Ir)  

Science Journals Connector (OSTI)

Low-temperature magnetic properties of Cd-doped Ce2MIn8 (M=Rh and Ir) single crystals are investigated. Experiments of temperature-dependent magnetic-susceptibility, heat-capacity, and electrical-resistivity measurements revealed that Cd doping enhances the antiferromagnetic (AFM) ordering temperature from TN=2.8?K (x=0) to TN=4.8?K (x=0.21) for Ce2RhIn8?xCdx and induces long-range AFM ordering with TN=3.8?K (x=0.21) for Ce2IrIn8?xCdx. Additionally, x-ray and neutron magnetic scattering studies showed that Cd-doped samples present below TN a commensurate antiferromagnetic structure with a propagation vector ??=(12,12,0). The resolved magnetic structures for both compounds indicate that the Cd doping tends to rotate the direction of the ordered magnetic moments toward the ab plane. This result suggests that the Cd doping affects the Ce3+ ground-state single-ion anisotropy modifying the crystalline electrical field (CEF) parameters at the Ce3+ site. Indications of CEF evolution induced by Cd doping were also found in the electrical-resistivity measurements. Comparisons between our results and the general effects of Cd doping on the related compounds CeMIn5 (M=Co, Rh, and Ir) confirms the claims that the Cd doping induced electronic tuning is the main effect favoring AFM ordering in these compounds.

C. Adriano; C. Giles; E. M. Bittar; L. N. Coelho; F. de Bergevin; C. Mazzoli; L. Paolasini; W. Ratcliff; R. Bindel; J. W. Lynn; Z. Fisk; P. G. Pagliuso

2010-06-15T23:59:59.000Z

114

E-Print Network 3.0 - aerosol lidar profilometer Sample Search...  

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

CLASIC Summary: Lidar RH Changes in aerosol properties and RH near clouds Airborne NASA LaRC HSRL, ARM SGP ground... ) RamanLidar RelativeHumidityRamanLidar Aerosol Extensive...

115

ARM - Field Campaign - Biogenic Aerosols - Effects on Clouds...  

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

(pressure temperature and relative humidity (RH)) to be obtained cost-effectively. Sensors developed at Reading include a supercooled liquid water sensor, an active cloud...

116

Field Monitoring Protocol: Heat Pump Water Heaters  

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

SHR Sensible heat ratio T&RH Temperature and relative humidity TC Thermocouple UA Heat loss coefficient v Table of Contents List of Figures ......

117

1  

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

Instrument Measurement Manufacturer Sampling Rate (interval) Accuracy HeightRange Thermometer Temperature Vaisala 1 min. avgs. (1 sec) 0.41C 2 m RH Sensor Relative humidity...

118

Basic Reaction Model of Automobile Exhaust Gas Treatment over Pt?Rh Catalyst  

Science Journals Connector (OSTI)

Basic Reaction Model of Automobile Exhaust Gas Treatment over Pt?Rh Catalyst ... The reactor is heated by a three-section electric furnace. ...

Motoaki Kawase; Hiroyasu Fujitsuka; Hitoshi Nakanishi; Tatsuya Yoshikawa; Kouichi Miura

2010-09-02T23:59:59.000Z

119

Highly Active and Stable MgAl2O4 Supported Rh and Ir Catalysts...  

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

Supported Rh and Ir Catalysts for Methane Steam Reforming: A Combined Experimental and Abstract: In this work we present a combined experimental and theoretical investigation of...

120

Alternate Air Delivery Systems for Hot and Humid Climates  

E-Print Network (OSTI)

-zone units in the Harris County Criminal Courts Building in Houston, one of the most hot and humid climates in the United States, as well as in several other facilities. This paper will discuss the adoption of ASHRAE 62, its effects on VAV systems, and how...

Wallace, M.

1996-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "relative humidity rh" 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

Mean Radiant Cooling in a Hot-Humid Climate  

E-Print Network (OSTI)

Shaded interior mass walls in a hot-humid climate can be thermally grounded to an earth heat sink under an insulated structure. The mean radiant temperature (MRT) of the shaded and thermally grounded interior mass walls will be cooler in summer than...

Garrison, M.

1996-01-01T23:59:59.000Z

122

Internal Microclimate Resulting From Ventilated Attics in Hot and Humid Regions  

E-Print Network (OSTI)

, in multiple positions at the ridge vent, and three other locations along the roof decking of the attic. The placement of some of the various sensors can be seen in Figure 2. Data were recorded every 15 minutes for the entire year. During... S Roof Sub Shingle - Upper 0 50 100 150 200 250 Ho ur s ESL-HH-10-08-10 4 Figure 5. Monthly averages of relative humidity at various points The data collected in this study offer a complete view of the average microclimatic...

Mooney, B. L.; Porter, W. A.

123

K. Baird, F.-J. Decker, M. J. Hogan* , R.H. Iverson, P. Raimondi, R.H. Siemann, D. Walz  

E-Print Network (OSTI)

1 K. Baird, F.-J. Decker, M. J. Hogan* , R.H. Iverson, P. Raimondi, R.H. Siemann, D. Walz Stanford Linear Accelerator Center B.E. Blue, C.E. Clayton, E.S. Dodd, C. Joshi* , K.A. Marsh, W.B. Mori, S. Wang R. Assmann CERN E-162: Positron and Electron Dynamics in a Plasma Wakefield Accelerator I

124

Bimetallic Ni-Rh catalysts with low amounts of Rh for the steam and autothermal reforming of n-butane for fuel-cell applications.  

SciTech Connect

Mono-metallic nickel and rhodium catalysts and bimetallic Ni-Rh catalysts supported on La-Al{sub 2}O{sub 3}, CeZrO{sub 2} and CeMgOx were prepared and evaluated for catalyzing the steam and autothermal reforming of n-butane. The binary Ni-Rh supported on La-Al{sub 2}O{sub 3} catalysts with low weight loading of rhodium exhibited higher H{sub 2} yields than Ni or Rh alone. The Ni-Rh/CeZrO{sub 2} catalyst exhibited higher performance and no coke formation, compared to the same metals on other supports. A NiAl{sub 2}O{sub 4} spinel phase was obtained on all Ni and Ni-Rh catalysts supported on La-Al{sub 2}O{sub 3}. The presence of rhodium stabilized the spinel phase as well as NiOx species upon reforming while Ni alone was mostly reduced into metallic species. Extended X-ray absorption fine-structure analysis showed evidence of Ni-Rh alloy during preparation and even further after an accelerated aging at 900C in a H{sub 2}/H{sub 2}O atmosphere.

Ferrandon, M.; Kropf, A. J.; Krause, T.; Chemical Sciences and Engineering Division

2010-05-15T23:59:59.000Z

125

Carbon monoxide oxidation on Rh(111): Velocity and angular distributions of the CO2 product  

E-Print Network (OSTI)

Carbon monoxide oxidation on Rh(111): Velocity and angular distributions of the CO2 product J. I and angular distributions of CO2 produced by CO oxidation on Rh 111 have been measured as a function a fundamental and a practical point of view. CO2 formation serves as a model recombina- tion reaction

Sibener, Steven

126

Atomic and molecular adsorption on RhMn alloy surface: A first principles study  

E-Print Network (OSTI)

and hydrogen from reforming of natural gas and coal to hydro- carbon Fishcher-Tropsch synthesis and oxygenates- bon and partial oxidation of methane.15 The importance of Rh catalysts on catalytic reactions molecules in terms of the energetics and site preferences on Rh catalysts as well as the effects of Mn added

Li, Weixue

127

High density adsorbed oxygen on Rh,,111... and enhanced routes to metallic oxidation using atomic oxygen  

E-Print Network (OSTI)

High density adsorbed oxygen on Rh,,111... and enhanced routes to metallic oxidation using atomic oxygen K. D. Gibson, Mark Viste, Errol C. Sanchez, and S. J. Sibener The James Franck Institute; accepted 30 November 1998 Exposure of Rh 111 to atomic oxygen leads to the facile formation of a full

Sibener, Steven

128

Corrosion-induced degradation of GaAs PHEMTs under operation in high humidity conditions  

E-Print Network (OSTI)

We have comprehensively investigated the degradation mechanism of AlGaAs/InGaAs pseudomorphic high-electron-mobility transistors (PHEMTs) under operation in high humidity conditions. PHEMTs degradation under high humidity ...

Hisaka, Takayuki

129

Building Technologies Office: Guides and Case Studies for Hot-Humid  

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

Humid Climates to someone by E-mail Humid Climates to someone by E-mail Share Building Technologies Office: Guides and Case Studies for Hot-Humid Climates on Facebook Tweet about Building Technologies Office: Guides and Case Studies for Hot-Humid Climates on Twitter Bookmark Building Technologies Office: Guides and Case Studies for Hot-Humid Climates on Google Bookmark Building Technologies Office: Guides and Case Studies for Hot-Humid Climates on Delicious Rank Building Technologies Office: Guides and Case Studies for Hot-Humid Climates on Digg Find More places to share Building Technologies Office: Guides and Case Studies for Hot-Humid Climates on AddThis.com... About Take Action to Save Energy Partner With DOE Activities Solar Decathlon Building America Research Innovations Research Tools Building Science Education

130

Preparation, characterization, and structural analyses of [Rh(chp)(NBD)]2 and [Rh(chp)(NBD)]2(PF6). Isolation of a paramagnetic d7-d8 binuclear radical and its d8-d8 precursor  

Science Journals Connector (OSTI)

Preparation, characterization, and structural analyses of [Rh(chp)(NBD)]2 and [Rh(chp)(NBD)]2(PF6). Isolation of a paramagnetic d7-d8 binuclear radical and its d8-d8 precursor ...

David C. Boyd; Robert. Szalapski; Kent R. Mann

1989-03-01T23:59:59.000Z

131

Data Center Efficiency and IT Equipment Reliability at Wider Operating Temperature and Humidity Ranges  

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

provides an overview of how operators of data centers can increase energy efficiency at wider operating temperatures and humidity ranges

132

BC TIPS - Hot-Humid Climate: New Orleans  

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

Hot-Humid Climate: New Orleans Hot-Humid Climate: New Orleans Building Technologies Program The U.S. Department of Energy's Builders Challenge recognizes quality homes that also save you money. U.S. homebuilders from all areas of the country report growing buyer interest in energy-efficient houses, yet buyers often lack basic information that can help them make informed decisions. How can homebuyers tell exceptional energy performance from average energy performance? And how do they figure out just what that difference will mean in their energy bills? Spearheaded by the U.S. Department of Energy (DOE), the Builders Challenge is a voluntary effort to address these consumer questions. The Builders

133

Integrated Temperature and Humidity Control: A Unique Approach  

E-Print Network (OSTI)

as in Singapore. The results presented herein are from one of these sites, consisting of two adjacent unoccupied guest rooms in a hotel, each equipped with chilled- water fan coil units. The two, virtually identical adja- cent rooms were selected primarily... for comparing the operation and performance of the ITHC with that of a dry-bulb temperature controller (DBTC) under the exact same conditions (solar, outdoor temperature and humidity, internal loads, etc.). To obtain com- parative results, the fan coil unit...

Shah, D. J.

2000-01-01T23:59:59.000Z

134

Considerations for Energy Efficient Showers in Hot-Humid Climates  

E-Print Network (OSTI)

major Northeast utilities [2] have conducted extensive shower testing. The utilities have not released results of their testing, but provided the names of three manufacturers which had supplied showerheads for their programs. The utilities....D.,"Energy Efficiency Design Evalua- tion for the Texas Department of Corrections, "Proc. of Fiftv Annual Svm~osium on Im~rovina Buildina Enerav Efficiencv in Hot and Humid Climates, Sept. 13-14, 1988, Houston, pp.129-136. 2. PSEG of New Jersey and Northeast...

Claridge, D. E.; Turner, W. D.

1989-01-01T23:59:59.000Z

135

Synthesis, characterization, and catalytic activity of Rh-based lanthanum zirconate pyrochlores for higher alcohol synthesis  

SciTech Connect

Two lanthanum zirconate pyrochlores (La{sub 2}Zr{sub 2}O{sub 7}; LZ) were prepared by Pechini method and tested for higher alcohols selectivity. In one, Rh was substituted into the pyrochlore lattice (LRZ, 1.7 wt%) while for the second, Rh was supported on an unsubstituted La{sub 2}Zr{sub 2}O{sub 7} (R/LZ, 1.8 wt%). X-ray photoelectron spectroscopy (XPS) and temperature programmed reduction (TPR) results show that the surface reducibility depends on whether the Rh is in (or supported on) the LZ pyrochlore. Rhodium in the LRZ is more reducible than rhodium supported on the R/LZ pyrochlore, likely due to the presence of a perovskite phase (LaRhO{sub 3}; identified by XRD), in which rhodium is more reducible. The formation of the perovskite accompanies that of the pyrochlore. CO hydrogenation results show higher ethanol selectivity for R/LZ than LRZ, possibly due to the strong interaction between Rh and LZ on the R/LZ, forming atomically close Rh{sup +}/Rh{sup 0} sites, which have been suggested to favor ethanol production.

Abdelsayed, Victor; Shekhawat, Dushyant; Poston, James A., Jr.; Spivey, James J.

2013-05-01T23:59:59.000Z

136

Electron spin resonance and electron spin-echo modulation study of paramagnetic Rh species generated in Ca-Y and Na-Y zeolites  

SciTech Connect

Paramagnetic Rh species generated in RhNa-Y and RhCa-Y zeolites after various treatments were characterized by using electron spin resonance (ESR) and electron spin-echo modulation (ESEM) spectroscopies. Activation in flowing oxygen at 500/sup 0/C ..beta..-hydrogen a considerable amount of Rh(II) located in site I in the hexagonal prism of the zeolite structure for 3 wt % Rh in RhNa-Y zeolite. Samples of 1 wt % Rh in RhNa-Y and RhCa-Y did not show any paramagnetic signals. Adsorption of various adsorbates such as water, ammonia, methanol, carbon monoxide, and oxygen on activated samples induced a considerable increase in the ESR intensities. Adsorption of oxygen and carbon monoxide yields the corresponding adducts which are located in the ..cap alpha..-cage of the zeolite structure. Hydration generated a species which is coordinated to three water molecules. Adsorption of methanol on RhNa-Y generated a species H2 which is also formed after reduction of RhNa-Y with H/sub 2/, suggesting that the methanol molecule undergoes a reaction to generate products which further reduce Rh(III) species in the ..beta..-cage of the zeolite structure to Rh(II). No significant differences were observed between RhNa-Y and RhCa-Y except for the formation of different Rh(II) species after methanol adsorption in RhCa-Y and the generation of a larger amount of Rh(II) in site I in RhNa-Y. These results are compared to previously obtained data in RhNa-X and RhCa-X to account for the effect of the cocations and the Si/Al ratio on the generation of Rh(II) species in zeolites.

Goldfarb, D.; Kevan, L.

1987-04-15T23:59:59.000Z

137

ASSESSMENT OF THE EFFECTIVENESS AND ENERGY EFFICIENCY OF HUMIDITY CONTROL APPROACHES IN VACANT FLORIDA HOMES  

E-Print Network (OSTI)

, but it yielded insufficient RH control during cloudy weather. Furthermore, AC energy use peaks during the utility’s peak demand period. Running the AC system for two hours a day (3-5 AM) yielded effective and energy efficient RH control. Operation of a...

Cummings, J. B.; Withers, C. R.

138

Impact of Infiltration and Ventilation on Measured Space Conditioning Energy and Moisture Levels in the Hot-Humid Climate, Cocoa, Florida (Fact Sheet)  

SciTech Connect

Air infiltration and ventilation in residential buildings is a very large part of the heating loads, but empirical data regarding the impact on space cooling has been lacking. Moreover, there has been little data on how building tightness might relate to building interior moisture levels in homes in a hot and humid climate. To address this need, BA-PIRC has conducted research to assess the moisture and cooling load impacts of airtightness and mechanical ventilation in two identical laboratory homes in the hot-humid climate over the cooling season. ?

Not Available

2014-04-01T23:59:59.000Z

139

Role of relative humidity in concrete expansion due to alkali-silica reaction and delayed ettringite formation: relative humidity thresholds, measurement methods, and coatings to mitigate expansion.  

E-Print Network (OSTI)

??Premature concrete deterioration due to alkali-silica reaction (ASR) and delayed ettringite formation (DEF) is a significant problem all over the world. In cases where these… (more)

Rust, Charles Karissa

2009-01-01T23:59:59.000Z

140

Dissociation and oxidation of carbon monoxide over Rh/Al sub 2 O sub 3 catalysts  

SciTech Connect

The activity of Rh/Al{sub 2}O{sub 3} catalysts for CO oxidation was investigated by transient isotopic pulse experiments using packed-bed reactor. This transient experimental scheme revealed significant CO dissociation activity during CO oxidation over Rh/Al{sub 2}O{sub 3} catalysts. Results indicate that the oxidation of CO proceeds via dissociative oxidation by its own oxygen as well as via direct oxidation by gas-phase oxygen on well-dispersed Rh/Al{sub 2}O{sub 3} catalysts. The rate of CO dissociation is on the same order of magnitude as the rate of CO oxidation; under steady-state conditions at 300{degree}C, the rate of CO dissociation is approximately half that of direct oxidation. Differences in CO dissociation activity between single-crystal Rh surfaces and well-dispersed supported Rh particles are explained in terms of the molecular bonding and adsorption characteristics on these two different surfaces. The importance of CO dissociation kinetics in the overall CO oxidation activity of Rh/Al{sub 2}O{sub 3} catalysts is further discussed in view of the reaction lightoff behavior.

Cho, Byong K.; Stock, C.J. (General Motors Research Labs., Warren, MI (USA))

1989-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "relative humidity rh" 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

Guides and Case Studies for Hot-Humid Climates | Department of Energy  

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

Humid Climates Humid Climates Guides and Case Studies for Hot-Humid Climates Map of the Hot and Humid Climate Zone of the United States. This zone covers eastern Texas through Florida and reaches up to mid-Georgia it also includes Puerto Rico and Hawaii. The U.S. Department of Energy (DOE) Building America program has developed a series of best practices and case studies to help builders improve whole-house energy performance in buildings found in hot-humid climates. Best Practice Guides New Construction Case Studies Improvements to Existing Homes Case Studies Best Practice Guides 40% Whole-House Energy Savings in the Hot-Humid Climates - Volume 15 New Construction Case Studies Florida Project: Ravenwood Homes and Energy Smart Home Plans, Inc. - Cape Coral Builder: Ravenwood Homes

142

Guides and Case Studies for Mixed-Humid Climates | Department of Energy  

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

Guides and Case Studies for Mixed-Humid Climates Guides and Case Studies for Mixed-Humid Climates Guides and Case Studies for Mixed-Humid Climates Map of the Mixed-Humid Climate which reaches from the coast of Maryland through North Carolina and sprawls to cover most of Kansas and Oklahoma. The Department of Energy (DOE) has developed a series of best practices and case studies to help builders improve whole-house energy performance in buildings found in mixed-humid climates. Best Practice Guides New Construction Case Studies Improvements to Existing Homes Case Studies Best Practice Guides 40% Whole-House Energy Savings in the Mixed-Humid Climates - Volume 16 New Construction Case Studies Maryland Project: North Point Lot 5 - Frederick Builder: Nexus EnergyHomes Profile: This urban infill community with 24 duplexes, 19 townhomes, and 7

143

EXAFS and FT-IR Characterization of Mn and Li Promoted Titania-Supported Rh Catalysts for CO Hydrogenation  

SciTech Connect

The effect of Li and Mn promoters on the structure and selectivity of supported Rh catalysts for CO hydrogenation reaction was examined. Infrared spectroscopy and X-ray absorption were used to investigate the adsorption of reactants and local structure of Rh. These techniques were used in combination with reactivity, H{sub 2} chemisorption, and temperature programmed studies to correlate structural characteristics with activity and selectivity during CO hydrogenation of unpromoted Rh/TiO{sub 2} and three promoted Rh catalysts: Rh-Li/TiO{sub 2}, Rh-Mn/TiO{sub 2}, and Rh-Li-Mn/TiO{sub 2}. The presence of a promoter slightly decreases the Rh clusters size; however, no evidence for an electronic effect induced by the presence of Li and Mn was found. Higher turnover frequencies were found for the promoted catalysts, which also showed the lower dispersion. The Li promoter introduces a weakened CO adsorption site that appears to enhance the selectivity to C{sub 2+} oxygenates. The selectivity to C{sub 2+} oxygenates varies inversely with the reducibility of Rh metal, that is, the lower the Rh reducibility, the higher the selectivity.

V Schwartz; A Campos; A Egbebi; J Spivey; S Overbury

2011-12-31T23:59:59.000Z

144

Test Plan to Evaluate the Relationship Among IAQ, Comfort, Moisture, and Ventilation in Humid Climates  

SciTech Connect

This experimental plan describes research being conducted by Pacific Northwest National Laboratory (PNNL), in coordinatation with Florida Solar Energy Center (FSEC), Florida HERO, and Lawrence Berkeley National Laboratory (LBNL) to evaluate the impact of ventilation rate on interior moisture levels, temperature distributions, and indoor air contaminant concentrations. Specifically, the research team will measure concentrations of indoor air contaminants, ventilation system flow rates, energy consumption, and temperature and relative humidity in ten homes in Gainesville, FL to characterize indoor pollutant levels and energy consumption associated with the observed ventilation rates. PNNL and FSEC have collaboratively prepared this experimental test plan, which describes background and context for the proposed study; the experimental design; specific monitoring points, including monitoring equipment, and sampling frequency; key research questions and the associated data analysis approach; experimental logistics, including schedule, milestones, and team member contact information; and clearly identifies the roles and responsibilities of each team in support of project objectives.

Widder, Sarah H.; Martin, Eric

2013-03-15T23:59:59.000Z

145

Humidity, Pressure, and Temperature Measurements in an Interdigitated-Flow PEM Hydrogen Fuel Cell  

Science Journals Connector (OSTI)

In situ measurements of humidity, temperature, and pressure are demonstrated for a polymer electrolyte membrane (PEM) fuel cell of interdigitated gas flow channel layout. Sensors are embedded at ...

S. Bell; G. Hinds; M. de Podesta; M. Stevens…

2012-09-01T23:59:59.000Z

146

Creating a Global Humidity DatasetCreating a Global Humidity Dataset Progress with the Marine ComponentProgress with the Marine Component  

E-Print Network (OSTI)

especially the Persian Gulf. Climatologies derived from actual data will be used later on to produce the end the possible under-representation in NCEP of humidity in the Persian Gulf. · some comparison of different

Feigon, Brooke

147

Role of support in adsorption and catalysis on supported metals. I. IR spectroscopic study of adsorption of CO and H/sub 2/ on Rh/SiO/sub 2/, Rh/Al/sub 2/O/sub 3/, and Rh/La/sub 2/O/sub 3/  

SciTech Connect

With the aim of studying the influence of the nature of the support on the properties of supported rhodium-containing catalysts, the adsorption of CO and H/sub 2/ on Rh/SiO/sub 2/, Rh/Al/sub 2/O/sub 3/, and Rh/La/sub 2/O/sub 3/ has been investigated. It has been found that in the case of Rh/La/sub 2/O/sub 3/, along with the surface complexes that are characteristic for Rh/SiO/sub 2/ and Rh/Al/sub 2/O/sub 3/, new surface compounds of adsorbed CO and H/sub 2/ are formed. On the basis of an analysis of the spectrochemical properties of these boundary with the participation of the metal atoms and also the atoms of the support.

Bredikhin, M.N.; Lokhov, Yu.A.; Kuznetsov, V.L.

1987-12-01T23:59:59.000Z

148

Role of Wind in Vernacular Architecture of Hot and Humid Region of Iran  

E-Print Network (OSTI)

ROLE OF WIND IN VERNACULAR ARCHITECTURE OF HOT AND HUMID REGION OF IRAN RAHMAN AZARI NAJAFABADI ACADEMIC STAFF STUDENT KIMIYA DANESHVAR SAHAR PAKSERESHT SARA POORYOUSEFZADEH STUDENT STUDENT ART... the total framework which underlies architecture. Vernacular architecture in hot and humid regions of Iran has strong bonds with local climate. Shenasil, Taremi and Wind towers are the features that have developed according to climatic considerations...

Najafabadi, R. A.; Daneshvar, K.; Pakseresht, K.; Pooryousefzadeh, S.

2006-01-01T23:59:59.000Z

149

Understanding the Temperature and Humidity Environment Inside a PV Module (Presentation), NREL (National Renewable Energy Laboratory)  

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

This PowerPoint presentation was originally given by Michael Kempe of NREL in February 2013 detailing a project funded by the SunShot Initiative. Understanding the Temperature and Humidity Environment Inside a PV Module aims to show that by choosing humidity conditions that more closely match the use environment, one can minimize the uncertainty associated with moisture induced degradation modes.

150

Influence of Sea Surface Temperature on Humidity and Temperature in the Outflow of Tropical Deep Convection  

E-Print Network (OSTI)

-Service Aircraft (MOZAIC) project are analyzed in the vicinity of deep convective outflow to study the variationsInfluence of Sea Surface Temperature on Humidity and Temperature in the Outflow of Tropical Deep upper-tropospheric temperature and humidity by the Mea- surement of Ozone and Water Vapor by Airbus In

Johnson, Richard H.

151

PhD Student Position Vacancy Satellite Humidity Climate Data Records  

E-Print Network (OSTI)

's objective is to improve weather and climate predictions with the help of satellite data, particularly from1 PhD Student Position Vacancy Satellite Humidity Climate Data Records Climate change is a key satellite measurements of atmospheric humidity and clouds, and with climate model results. The group

Hamburg,.Universität

152

Effect of Li Promoter on titania-supported Rh catalyst for ethanol formation from CO hydrogenation  

SciTech Connect

The addition of 0.10wt% Li to Rh/TiO2 more than doubled the CO conversion for CO hydrogenation while increasing ethanol selectivity. The addition of Li also increases formation of C2 oxygenates at the expense of C1 species, methanol and methane. This is attributed to enhanced dispersion of Rh by Li that appears to reduce dissociation of CO, which previous studies have shown requires large ensembles of Rh atoms on the surface. Li promotion appears to increase the associatively adsorbed CO, allowing for increased H2 chemisorption on the surface compared to the dissociative adsorption of the same number of CO atoms. This increases selectivity to ethanol compared to the unpromoted catalysts. CO-TPD shows more reactive adsorbed CO species on the Li-promoted catalyst. FTIR results suggest that Li promotion alters CO bonding at bridged or interfacial sites and its effect is more structural than electronic.

Egbebi, Adefemi [Louisiana State University; Overbury, Steven {Steve} H [ORNL; Schwartz, Viviane [ORNL; Spivey, James J [Louisiana State University

2010-01-01T23:59:59.000Z

153

CO hydrogenation on Rh/Al-PILC: the effect of the metallic precursor  

Science Journals Connector (OSTI)

Publisher Summary This chapter describes the preparation of new catalysts for liquid fuel synthesis making use of the molecular sieving effect of pillared clays (PILC) of controlled porosity to limit the size of the hydrocarbons chain, and of the ability of partially oxidized Rh to produce oxygenates, acting on the Rh electronic state by changing the active phase precursor and the dispersion of the metal involved. The nature of the metallic precursor plays a role on the activity and selectivity for CO hydrogenation of Rh-PILC catalysts. Organo compounds seem to give rise to catalysts more active and selective to oxygenate than inorganic precursors, through changes in the oxidation state and the particle size of the metal involved. To select the proper treatment temperature, as to eliminate the organic residue on the support, is a necessary step to obtain the expected improvement of the catalysts.

S. Mendioroz; B. Asenjo; P. Terreros; P. Salerno; V. Muñoz

2000-01-01T23:59:59.000Z

154

Cooling effect in emissions of 103mRh excited by bremsstrahlung  

E-Print Network (OSTI)

Nonlinear characteristic emissions of K alpha, K beta and gamma with a significant triplet splitting at room temperature are observed from the long-lived nuclear state of 103mRh excited by bremsstrahlung irradiation. A pronounced phase-transition-like narrowing of the emission profiles occurs immediately after the sample is cooled down to 77 K. The room temperature profiles reappear again abruptly and almost reversibly as the temperature drifts freely back to approximately the ice point after the filling of liquid nitrogen is stopped. These emission properties at 300 K and at low temperature may indicate that the 103mRh nuclei are in collective states.

Yao Cheng; Bing Xia; Chinping Chen

2009-04-29T23:59:59.000Z

155

CO Oxidation on Rh/SiO2/Mo(112) Model Catalysts at Elevated Pressures Sean M. McClure, M. Lundwall, F. Yang, Z. Zhou, and D. W. Goodman*  

E-Print Network (OSTI)

) substrate under UHV conditions, in a contiguous high-pressure reactor cell-UHV surface analysis chamber. CO) and Rh coverage (Rh ) 0.25-10 ML), along with measurements on a Rh(111) single crystal for direct comparison. CO desorption measurements on the Rh/SiO2 films and STM measurements of Rh particles on ultrathin

Goodman, Wayne

156

System analysis of membrane facilitated water generation from air humidity  

Science Journals Connector (OSTI)

Abstract The use of water vapor selective membranes can reduce the energy requirement for extracting water out of humid air by more than 50%. We performed a system analysis of a proposed unit, that uses membranes to separate water vapor from other atmospheric gases. This concentrated vapor can then be condensed specifically, rather than cooling the whole body of air. The driving force for the membrane permeation is maintained with a condenser and a vacuum pump. The pump regulates the total permeate side pressure by removing non-condensable gases that leak into the system. We show that by introducing a low-pressure, recirculated, sweep stream, the total permeate side pressure can be increased without impairing the water vapor permeation. This measure allows energy efficiency even in the presence of leakages, as it significantly lowers the power requirements of the vacuum pump. Such a constructed atmospheric water generator with a power of 62 kW could produce 9.19 m3/day of water (583 MJ/m3) as compared to 4.45 m3/day (1202 MJ/m3) that can be condensed without membranes. Due to the physical barrier the membrane imposes, fresh water generated in this manner is also cleaner and of higher quality than water condensed directly out of the air.

D. Bergmair; S.J. Metz; H.C. de Lange; A.A. van Steenhoven

2014-01-01T23:59:59.000Z

157

Metal segregation in supported bimetallic catalysts:. gamma. -Al/sub 2/O/sub 3/-supported CO hydrogenation catalysts prepared from RhOs/sub 3/, Rh/sub 4/, and FeOs/sub 3/ clusters  

SciTech Connect

Al/sub 2/O/sub 3/-supported metals were prepared from (H/sub 2/RhOs/sub 3/(CO)/sub 10/(acetylacetonate)), (Rh/sub 4/(CO)/sub 12/), and (H/sub 2/FeOs/sub 3/(CO)/sub 13/). The samples were characterized by infrared spectroscopy after reaction with CO + H/sub 2/ and tested as catalysts for conversion of CO + H/sub 2/ in a flow reactor at 200 and 270/sup 0/C and 10 atm. Used catalysts were characterized by transmission electron microscopy, X-ray photoelectron spectroscopy, infrared spectroscopy, and elemental analysis. The catalyst lost Os during operation, presumably as a result of formation of volatile carbonyls. The catalytic reaction products were a nearly Schulz-Flory-Anderson distribution of hydrocarbons with small yields of dimethyl ether (formed from methanol). The performance of the catalyst prepared from the RhOs/sub 3/ clusters was closely similar to that of the catalyst prepared from the Rh/sub 4/ cluster. Characterization of the samples after treatment in CO + H/sub 2/ and after catalysis demonstrated that the RhOs/sub 3/ clusters broke apart, first giving triosmium clusters and mononuclear Rh complexes and then, at higher temperatures, giving Rh crystallites and mononuclear Os complexes. The catalytic activity for hydrocarbon synthesis is attributed to the Rh metal; the activity for methanol synthesis is tentatively associated with ionic Rh complexes. The FeOs/sub 3/ catalyst was two orders of magnitude less active than the Rh Os/sub 3/ catalyst, apparently consisting of small iron oxide particles and mononuclear Os complexes. The selectivity of this catalyst for dimethyl ether formation increased markedly with time onstream in the flow reactor; after 55 h, 36 mol% of the organic product was ether. 25 refs., 5 figs., 3 tabs.

Budge, J.R.; Lucke, B.F.; Gates, B.C.; Toran, J.

1985-02-01T23:59:59.000Z

158

Lateral Interactions and Multi-isotherms:? Nitrogen Recombination from Rh(111)  

Science Journals Connector (OSTI)

Lateral Interactions and Multi-isotherms:? Nitrogen Recombination from Rh(111) ... There are several families of algorithms to solve the Master Equation; we have used the discrete event simulation algorithm (DES). ... The fitting process then yields parameters that look reasonable, but one has to keep in mind that approximations were made (see previous section) in building the model. ...

C. G. M. Hermse; A. P. van Bavel; B. E. Nieuwenhuys; J. J. Lukkien; R. A. van Santen; A. P. J. Jansen

2005-08-02T23:59:59.000Z

159

Bird faunas of the humid montane forests of Mesoamerica: biogeographic patterns and priorities for conservation  

E-Print Network (OSTI)

, and Veracruz; Bird faunas of Mesoamerican humid montane forests 2 53 \\ c S1NDU \\ \\ yy NAYJAt-V—\\ TAN C1—5 MICHO '— v '~- . TEMAS TAX GU - 1 CO y ERR A, YUCUN//T CUATR' f 7 ^ .TAMPS ^^^ HIDAL //^MALIN /ACVERA v /-- r KIAHU / P^f-^ // / 1 GUAPA /\\ Jtf/ GUACU... sizes; badly Bird faunas ofMesoamerican humid montane forests 255 needed are surveys in tiny and remote humid montane forest patches. Because of the concentration of our field surveys in the northern part of the study area (Mexico), more detailed...

Herná ndez-Bañ os, Blanca E.; Peterson, A. Townsend; Navarro-Sigü enza, Adolfo G.; Escalante-Pliego, B. Patricia

1995-01-01T23:59:59.000Z

160

Kinetics of size changes of individual Bacillus thuringiensis spores in response to changes in relative humidity  

Science Journals Connector (OSTI)

...measurements of sizes of Bacillus spores can discriminate...freeze-dried and crushed Bacillus subtilis spores as a function...of two components of Bacillus sphaericus spores, which they...cells and spores of B. subtilis after various...

Andrew J. Westphal; P. Buford Price; Terrance J. Leighton; Katherine E. Wheeler

2003-01-01T23:59:59.000Z

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


161

The effect of temperature and relative humidity levels upon charcoal tube sampling for vinyl choloride  

E-Print Network (OSTI)

. O cart-per-million (ppm), and a ceiling 5. 0 ppm averaged over any period not exceeding 15 (5) minutes. ' In an effo rt to determine a worker's TWA for UCM, a tube packed with activated carbon is used as an adsorbent. The accumulated samole.... Organic vapors, as far back as the 1950's have been successfully collected on solid adsorbents followed by desorption into a GC-FID. The chromatograph is able to separate a mixture into components, and quantitatively measure each one, making it superior...

McCaskill, Gerald Daniel

2012-06-07T23:59:59.000Z

162

SURFACE ENERGY OF COATED PAPER: EFFECT OF CALENDERING CONDITIONS AND RELATIVE HUMIDITY  

E-Print Network (OSTI)

energy(1-3) of a substrate can be defined as a measure of energy required to form a unit area of new, such as spreading coefficient(1,3) . The surface energy of a substrate can be estimated by measuring the contact on the surface of a substrate can be measured using the sessile drop method(3) and hence the surface energy

Fleming, Paul D. "Dan"

163

The use of satellite cloud pictures to determine average relative humidity below 500 mb  

E-Print Network (OSTI)

satellite cloud photographs "an be used in numeri=al weather prediction. Other examples are certain to evolve as better techniques for photograph interpretation are developed, The primary objective of this research was to deter- mine the relationships... recorded from the 0000 GCT reports. The satellit pictures used in this study were ob- tained from the Meteorological Satellite Laboratory of the U. S Weather Bur au (National Weather Satellite Center, 1965a and 1965b). The dates selected...

West, Philip Walter

2012-06-07T23:59:59.000Z

164

Waste Isolation Pilot Plant simulated RH TRU waste experiments: Data and interpretation pilot  

SciTech Connect

The simulated, i.e., nonradioactive remote-handled transuranic waste (RH TRU) experiments being conducted underground in the Waste Isolation Pilot Plant (WIPP) were emplaced in mid-1986 and have been in heated test operation since 9/23/86. These experiments involve the in situ, waste package performance testing of eight full-size, reference RH TRU containers emplaced in horizontal, unlined test holes in the rock salt ribs (walls) of WIPP Room T. All of the test containers have internal electrical heaters; four of the test emplacements were filled with bentonite and silica sand backfill materials. We designed test conditions to be ``near-reference`` with respect to anticipated thermal outputs of RH TRU canisters and their geometrical spacing or layout in WIPP repository rooms, with RH TRU waste reference conditions current as of the start date of this test program. We also conducted some thermal overtest evaluations. This paper provides a: detailed test overview; comprehensive data update for the first 5 years of test operations; summary of experiment observations; initial data interpretations; and, several status; experimental objectives -- how these tests support WIPP TRU waste acceptance, performance assessment studies, underground operations, and the overall WIPP mission; and, in situ performance evaluations of RH TRU waste package materials plus design details and options. We provide instrument data and results for in situ waste container and borehole temperatures, pressures exerted on test containers through the backfill materials, and vertical and horizontal borehole-closure measurements and rates. The effects of heat on borehole closure, fracturing, and near-field materials (metals, backfills, rock salt, and intruding brine) interactions were closely monitored and are summarized, as are assorted test observations. Predictive 3-dimensional thermal and structural modeling studies of borehole and room closures and temperature fields were also performed.

Molecke, M.A.; Argueello, G.J.; Beraun, R.

1993-04-01T23:59:59.000Z

165

Climate regulation of humid tropical hydrology BHS 10th National Hydrology Symposium, Exeter, 2008  

E-Print Network (OSTI)

might influence tropical water resources. Introduction The humid tropics can be defined as the global, Bangladesh, and most of South-east Asia (Fosberg et al., 1961). Its climate contains distinctive dynamics

Chappell, Nick A

166

Better Unitary Equipment Air-Handlers for Efficiency and Humidity Control  

E-Print Network (OSTI)

procedure gives too little credit for advanced air handlers that reduce air conditioning load and facilitate adaptive humidity control through automatic fan speed adjustment. DC permanent magnet variable speed motors have much lower market share than less...

Sachs, H. M.

2002-01-01T23:59:59.000Z

167

Applications of Commercial Heat Pump Water Heaters in Hot, Humid Climates  

E-Print Network (OSTI)

Heat pump water heaters can provide high-efficiency water heating and supplemental space cooling and dehumidification in commercial buildings throughout the United States. They are particularly attractive in hot, humid areas where cooling loads...

Johnson, K. F.; Shedd, A. C.

168

Measuring High-Frequency Humidity, Temperature and Radio Refractive Index in the Surface Layer  

Science Journals Connector (OSTI)

Three different instrument systems are compared in their ability to either directly or indirectly measure humidity, temperature, and refractive-index fluctuations. Each system consists of a basic instrument—a Lyman-? hygrometer, an infrared ...

J. T. Priestley; R. J. Hill

1985-06-01T23:59:59.000Z

169

Simulation Study of Hybrid Ground Source Heat Pump System in the Hot-Humid Climate.  

E-Print Network (OSTI)

??The beachfront hotel with hybrid geothermal heat pump system (HyGSHP), located in the hot-humid climate, is simulated by TRNSYS in the thesis, and the simulation… (more)

Zhu, Jiang

2011-01-01T23:59:59.000Z

170

A passive cooling design for multifamily residences [sic] in hot, humid climates  

E-Print Network (OSTI)

People living in hot, humid climates suffer either from extremely uncomfortable weather conditions or from the great cost of air-conditioning systems for maintaining comfort. Most of the available passive cooling techniques ...

Tang, Joseph C

1983-01-01T23:59:59.000Z

171

High Temperature/Low Humidity Polymer Electrolytes Derived from Ionic Liquids  

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

Presentation on High Temperature/Low Humidity Polymer Electrolytes Derived from Ionic Liquids to the High Temperature Membrane Working Group Meeting held in Arlington, Virginia, May 26,2005.

172

Simulation and Optimization of the Temperature and Humidity Independent Control Showcase  

E-Print Network (OSTI)

A new kind of showcase with temperature and humidity independent control is introduced in this paper to reduce the energy consumption of the showcase's air-conditioning system. Computational Fluid Dynamics was employed to investigate this new...

Hou, H.; Yu, L.; Wan, X.; Chen, H.

2006-01-01T23:59:59.000Z

173

HVAC Design Strategy for a Hot-Humid Production Builder, Houston...  

Energy Savers (EERE)

Size: 1,757 ft 2 to 4,169 ft 2 Price Range: about 260,000 to 450,000 Date Completed: 2013 Climate Zone: Hot-humid PERFORMANCE DATA HERS index: Builder standard practice 66;...

174

Effect of prostaglandin E? (PGE?) on the release of gonadotropin-releasing hormone (GnRH) from infundibular explants of cattle  

E-Print Network (OSTI)

GnRH neuronal terminals located in the infundibulum of rodents have been shown to release GnRH when stimulated with PGE? in vivo and in vitro. The effect of PGE? on the release of GnRH has not been determined in cattle. Thus, the objective...

Stephens, Tyler Paul

2001-01-01T23:59:59.000Z

175

The effect of humidity on the collection efficiency for oxygenated compounds adsorbed on activated charcoal  

E-Print Network (OSTI)

THE EPPECT OP HUMIDITY ON THE COLIECTION EFFICIENCY POR OXYGENATED COMPOUNDS ADSORBED ON ACTIVATED CHARCOAL A Thesis by ROBERT BRUCE WALTON 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 August 1990 Major Subject: Industrial Hygiene THE EFFECT OF HUMIDITY ON THE COLLECTIOM EFFICIENCY FOR OXYGENATED COMPOUNDS ADSORBED ON ACTIVATED CHARCOAL A Thesis by ROBERT BRUCE WALTON Approved...

Walton, Robert Bruce

2012-06-07T23:59:59.000Z

176

Plant and microbial controls on nitrogen retention and loss in a Humid Tropical Forest  

SciTech Connect

Humid tropical forests are generally characterized by the lack of nitrogen (N) limitation to net primary productivity, yet paradoxically have high potential for N loss. We conducted an intensive field experiment with {sup 15}NH{sub 4} and {sup 15}NO{sub 3} additions to highly weathered tropical forest soils to determine the relative importance of N retention and loss mechanisms. Over half of all the NH{sub 4}{sup +} produced from gross mineralization was rapidly converted to NO{sub 3}{sup -} during the process of gross nitrification. During the first 24 h plant roots took up 28 % of the N mineralized, dominantly as NH{sub 4}{sup +}, and were a greater sink for N than soil microbial biomass. Soil microbes were not a significant sink for added {sup 15}NH{sub 4}{sup +} or {sup 15}NO{sub 3}{sup -} during the first 24 hr, and only for {sup 15}NH{sub 4}{sup +} after 7 d. Patterns of microbial community composition, as determined by Terminal Restriction Fragment Length Polymorphism analysis, were weakly, but significantly correlated with nitrification and denitrification to N{sub 2}O. Rates of dissimilatory NO{sub 3}{sup -} reduction to NH{sub 4}{sup +} (DNRA) were high in this forest, accounting for up to 25 % of gross mineralization and 35 % of gross nitrification. DNRA was a major sink for NO{sub 3}{sup -} which may have contributed to the lower rates of N{sub 2}O and leaching losses. Despite considerable N conservation via DNRA and plant NH{sub 4}{sup +} uptake, the fate of approximately 45% of the NO{sub 3}{sup -} produced and 22% of the NH{sub 4}{sup +} produced were not measured in our fluxes, suggesting that other important pathways for N retention and loss (e.g., denitrification to N{sub 2}) are important in this system. The high proportion of mineralized N that was rapidly nitrified and the fates of that NO{sub 3}{sup -} highlight the key role of gross nitrification as a proximate control on N retention and loss in humid tropical forest soils. Furthermore, our results demonstrate the importance of the coupling between DNRA and plant uptake of NH{sub 4}{sup +} as a potential N conserving mechanism within tropical forests.

Templer, P.; Silver, W.; Pett-Ridge, J.; DeAngelis, K.M.; Firestone, M.K.

2009-09-15T23:59:59.000Z

177

Reactivity of surface carbon deposited on supported Rh catalysts by the disproportionation of CO  

SciTech Connect

Recent investigations on hydrocarbon synthesis from CO and H/sub 2/ over Group VIII metals have proposed that the surface carbon formed by the dissociation of CO is an intermediate for hydrocarbon formation. It implies that metals which dissociate CO readily (e.g., Ni, Co, and Ru) are good catalysts for hydrocarbon synthesis unless the surface carbon is bound too strongly. There is a certain controversy in the literature on whether CO undergoes dissociation on Rh surfaces under UHV conditions. In the present work, the authors have investigated the reactivity of surface carbon deposited on TiO/sub 2/- or SiO/sub 2/-supported Rh catalysts in the presence of molecularly adsorbed CO by means of the isotopic tracer technique and have made a direct comparison of the reactivity of adsorbed CO with that of surface carbon. It has been revealed that three forms of carbon are produced by the disproportionation of CO.

Orita, H.; Naito, S.; Tamaru, K.

1988-06-01T23:59:59.000Z

178

Chirality in odd-A Rh isotopes within the triaxial particle rotor model  

SciTech Connect

By adopting the fully quantal triaxial particle-rotor model, the candidate chiral doublet bands in odd-A nuclei {sup 103}Rh and {sup 105}Rh with {pi}g{sub 9/2}{sup -1} x {nu}h{sub 11/2}{sup 2} configuration are studied. For the doublet bands in both nuclei, agreement is excellent for the observed energies over the entire spin range and B(M1)/B(E2) at higher spin range. The evolution of the chiral geometry with angular momentum is discussed in detail by using the angular momentum components and their probability distributions. Chirality is found to change from chiral vibration to nearly static chirality at spin I=37/2 and back to another type of chiral vibration at higher spin. The influence of the triaxial deformation {gamma} is also studied.

Qi, B.; Wang, S. Y. [Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, School of Space Science and Physics, Shandong University at Weihai, Weihai 264209 (China); Zhang, S. Q. [State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, 100871 Beijing (China); Meng, J. [State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, 100871 Beijing (China); School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191 (China); Department of Physics, University of Stellenbosch, Matieland 7602 (South Africa); Koike, T. [Department of Physics, Tohoku University, Sendai 980-8578 (Japan)

2011-03-15T23:59:59.000Z

179

Water-dependent domain motion and flexibility in ribonuclease A and the invariant features in its hydration shell. An X-ray study of two low-humidity crystal forms of the enzyme  

Science Journals Connector (OSTI)

The structures of two low-humidity crystal forms of rihonulease A have been determined at high resolution. When compared with other relevant forms, they provide information on the mobility of the enayme, the invariant features in its hydration shell and the possible relation between dehydration and enzyme action.

Kishan, R.V.R.

1995-09-01T23:59:59.000Z

180

Adequacy of a Small Quantity Site RH-TRU Waste Program in Meeting Proposed WIPP Characterization Objectives  

SciTech Connect

The first remote-handled transuranic (RH-TRU) waste is expected to be permanently disposed of at the Waste Isolation Pilot Plant (WIPP) during Fiscal Year (FY) 2003. The first RH-TRU waste shipments are scheduled from the Battelle Columbus Laboratories (BCL) to WIPP in order to facilitate compliance with BCL Decommissioning Project (BCLDP) milestones. Milestones requiring RH-TRU waste containerization and removal from the site by 2004 in order to meet a 2006 site closure goal, established by Congress in the Defense Facilities Closure Projects account, necessitated the establishment and implementation of a site-specific program to direct the packaging of BCLDP RH-TRU waste prior to the finalization of WIPP RH-TRU waste characterization requirements. The program was designed to collect waste data, including audio and videotape records of waste packaging, such that upon completion of waste packaging, comprehensive data records exist from which compliance with final WIPP RH-TRU waste characterization requirements can be demonstrated. With the BCLDP data records generated to date and the development by the U.S. Department of Energy (DOE)-Carlsbad Field Office (CBFO) of preliminary documents proposing the WIPP RH-TRU waste characterization program, it is possible to evaluate the adequacy of the BCLDP program with respect to meeting proposed characterization objectives. The BCLDP characterization program uses primarily acceptable knowledge (AK) and visual examination (VE) during waste packaging to characterize RH-TRU waste. These methods are used to estimate physical waste parameters, including weight percentages of metals, cellulosics, plastics, and rubber in the waste, and to determine the absence of prohibited items, including free liquids. AK combined with computer modeling is used to estimate radiological waste parameters, including total activity on a waste container basis, for the majority of BCLDP RH-TRU waste. AK combined with direct analysis is used to characterize radiological parameters for the small populations of the RH-TRU waste generated by the BCLDP. All characterization based on AK is verified. Per its design for comprehensive waste data collection, the BCLDP characterization program using AK and waste packaging procedures, including VE during packaging, meets the proposed WIPP RH-TRU waste characterization objectives. The conservative program design implemented generates certification data that will be adequate to meet any additional program requirements that may be imposed by the CBFO.

Biedscheid, J.; Stahl, S.; Devarakonda, M.; Peters, K.; Eide, J.

2002-02-26T23:59:59.000Z

Note: This page contains sample records for the topic "relative humidity rh" 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

Colloidally Synthesized Monodisperse Rh Nanoparticles Supported on SBA-15 for Size- and Pretreatment-Dependent Studies of CO Oxidation  

SciTech Connect

A particle size dependence for CO oxidation over rhodium nanoparticles of 1.9-11.3 nm has been investigated and determined to be modified by the existence of the capping agent poly(vinylpyrrolidone) (PVP). The particles were prepared using a polyol reduction procedure with PVP as the capping agent. The Rh nanoparticles were subsequently supported on SBA-15 during hydrothermal synthesis to produce Rh/SBA-15 supported catalysts for size-dependent catalytic studies. CO oxidation by O{sub 2} at 40 Torr CO and 100 Torr O{sub 2} was investigated over two series of Rh/SBA-15 catalysts: as-synthesized Rh/SBA-15 covering the full range of Rh sizes and the same set of catalysts after high temperature calcination and reduction. The turnover frequency at 443 K increases from 0.4 to 1.7 s{sup -1} as the particle size decreases from 11.3 to 1.9 nm for the as-synthesized catalysts. After calcination and reduction, the turnover frequency is between 0.1 and 0.4 s{sup -1} with no particle size dependence. The apparent activation energy for all catalysts is {approx}30 kcal mol{sup -1} and is independent of particle size and thermal treatment. Infrared spectroscopy of CO on the Rh nanoparticles indicates that the heat treatments used influence the mode of CO adsorption. As a result, the particle size dependence for CO oxidation is altered after calcination and reduction of the catalysts. CO adsorbs at two distinct bridge sites on as-synthesized Rh/SBA-15, attributable to metallic Rh(0) and oxidized Rh(I) bridge sites. After calcination and reduction, however, CO adsorbs only at Rh(0) atop sites. The change in adsorption geometry and oxidation activity may be attributable to the interaction between PVP and the Rh surface. This capping agent affect may open new possibilities for the tailoring of metal catalysts using solution nanoparticle synthesis methods.

Grass, Michael E.; Joo, Sang Hoon; Somorjai, Gabor A.

2009-02-12T23:59:59.000Z

182

Metal foam-supported Pd–Rh catalyst for steam methane reforming and its application to SOFC fuel processing  

Science Journals Connector (OSTI)

Abstract Pd–Rh/metal foam catalyst was studied for steam methane reforming and application to SOFC fuel processing. Performance of 0.068 wt% Pd–Rh/metal foam catalyst was compared with 13 wt% Ni/Al2O3 and 8 wt% Ru/Al2O3 catalysts in a tubular reactor. At 1023 K with GHSV 2000 h?1 and S/C ratio 2.5, CH4 conversion and H2 yield were 96.7% and 3.16 mol per mole of CH4 input for Pd–Rh/metal foam, better than the alumina-supported catalysts. In 200 h stability test, Pd–Rh/metal foam catalyst exhibited steady activity. Pd–Rh/metal foam catalyst performed efficiently in a heat exchanger platform reactor to be used as prototype SOFC fuel processor: at 983 K with GHSV 1200 h?1 and S/C ratio 2.5, CH4 conversion was nearly the same as that in the tubular reactor, except for more H2 and CO2 yields. Used Pd–Rh/metal foam catalyst was characterized by SEM, TEM, BET and CO chemisorption measurements, which provided evidence for thermal stability of the catalyst.

Partho Sarothi Roy; No-Kuk Park; Kiseok Kim

2014-01-01T23:59:59.000Z

183

Preparation and humidity controlling behaviors of sepiolite/polyacrylic acid (sodium) composite  

Science Journals Connector (OSTI)

Sepiolite/polyacrylic acid (sodium) nanocomposite was synthesized using inverse suspension polymerization method under different sepiolite content, dispersant content and neutralization degree with orthogonal experiments. The surface morphology and structure of sepiolite/polyacrylic acid composite were observed and analyzed, and the humidity controlling properties of composites were determined by absorption and desorption testing. The results showed that sepiolite/polyacrylic acid composite was in a fine particle with rough surface. During the polymerization process, acrylic acid monomer was grafted with hydroxyl on the surface of sepiolite and then intercalated successfully into the tetrahedral silica layers of sepiolite. With the increasing of sepiolite content, dispersant conten, neutralization degree and the humidity controlling behaviors of composite rose initially and then dropped down. The impact of three factors on the humidity controlling behavior of composites increased by the order of sepiolite content, dispersant content and neutralization degree. The optimum preparation parameters are sepiolite content of 4%, dispersant content of 15% and neutralization degree of 90%.

Jihui Wang; Shuping Ren; Mengjie Guo

2012-01-01T23:59:59.000Z

184

Comparison of temperature and humidity profiles with elastic-backscatter lidar data  

SciTech Connect

This contribution analyzes elastic-backscatter lidar data and temperature and humidity profiles from radiosondes acquired in Barcelona in July 1992. Elastic-backscatter lidar data reveal the distribution of aerosols within the volume of atmosphere scanned. By comparing this information with temperature and humidity profiles of the atmosphere at a similar time, we are able to asses de relationship among aerosol distribution and atmospheric stability or water content, respectively. Comparisons have shown how lidar`s revealed layers of aerosols correspond to atmospheric layers with different stability condition and water content.

Soriano, C. [Universidad Politecnica de Cataluna, Barcelona (Spain)]|[Los Alamos National Lab., NM (United States); Buttler, W.T. [Los Alamos National Lab., NM (United States); Baldasano, J.M. [Universidad Politecnica de Cataluna, Barcelona (Spain)

1995-04-01T23:59:59.000Z

185

Retrieval and Repackaging of RH-TRU Waste - General Presentation Modular Hot Cell Technology  

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

Paul Murray Paul Murray Oak Ridge, TN July 29, 2009 Retrieval and Repackaging of RH-TRU Waste- GENERAL PRESENTATION MODULAR HOT CELL TECHNOLOGY AREVA FEDERAL SERVICES - OAK RIDGE, TN - GENERAL PRESENTATION OF MODULAR HOT CELL TECHNOLOGY - July 29, 2009 ADAPTING AREVA'S TECHNOLOGY AREVA Worldwide Nuclear Lifecycle Transmission & Distribution Renewable Energy AREVA US Nuclear Fuel Services Nuclear Engineering Services AREVA Federal Services, LLC. (AFS) Federal Services Major Projects * MOX-MFFF * Yucca Mountain Project * DUF6 * Plateau Remediation Contract * Washington River Closure Project * SRS Liquid Waste AREVA FEDERAL SERVICES - OAK RIDGE, TN - GENERAL PRESENTATION OF MODULAR HOT CELL TECHNOLOGY - July 29, 2009 ADAPTING AREVA'S TECHNOLOGY AFS Technology Provider

186

Lifetime measurement of candidate chiral doublet bands in the Rh103,104 isotopes with the recoil-distance Doppler-shift method in inverse kinematics  

Science Journals Connector (OSTI)

Lifetimes of chiral candidate structures in Rh103,104 were measured using the recoil distance Doppler-shift method. The Gammasphere detector array was used in conjunction with the Cologne plunger device. Excited states of Rh103,104 were populated by the 11B(96Zr,4n)103Rh and 11B(96Zr,3n)104Rh fusion-evaporation reactions in inverse kinematics. Three and five lifetimes of levels belonging to the proposed chiral doublet bands are measured in Rh103 and Rh104, respectively. The previously observed even-odd spin dependence of the B(M1)/B(E2) values is caused by the variation in the B(E2) values, whereas the B(M1) values decrease as a function of spin.

T. Suzuki; G. Rainovski; T. Koike; T. Ahn; M. P. Carpenter; A. Costin; M. Danchev; A. Dewald; R. V. F. Janssens; P. Joshi; C. J. Lister; O. Möller; N. Pietralla; T. Shinozuka; J. Timár; R. Wadsworth; C. Vaman; S. Zhu

2008-09-22T23:59:59.000Z

187

Effects of dispersion and partial reduction on the catalytic properties of Rh/Al sub 2 O sub 3 catalysts in the steam reforming of mono- and bicyclic aromatics  

SciTech Connect

The steam reforming of toluene, cumene, and methyl-1-naphthalene was studied on well-reduced Rh/Al{sub 2}O{sub 3} catalysts of different dispersions and on partially reduced catalysts in which the dispersion of the metallic phase was maintained at 25 {plus minus} 2%. The principal reactions were dehydrogenation DH (cumene {yields} {alpha}-methylstyrene), dealkylation DA (for instance, toluene {yields} benzene), naphthalene ring opening NRO (methylnaphthalene {yields} benzene + toluene), and degradations DN (total gasification of the molecules). Dispersion and partial reduction effects are shown to occur and can be summarized as follows: a partially reduced sample behaves catalytically as would dispersed and well-reduced catalysts. In this case, DN reactions are much inhibited, whereas DA and, to a lesser extent, NRO are relatively less affected by partial reduction. Moreover, DH is quite unaffected by these factors. The results may be expressed in terms of either electronic (DN favored on particles where the metal is more capable of donating electrons) or geometric effects (DN favored on a large ensemble of adjacent sites). These models are discussed on the basis of kinetic and XPS results, particularly those obtained on partially reduced Rh/Al{sub 2}O{sub 3} catalyst samples. Alloy effects (selectivities modified by the presence of RhAl alloy) could also occur on a catalyst calcined and reduced at high temperatures.

Delahay, G.; Duprez, D. (Universite de Poitiers (France))

1989-02-01T23:59:59.000Z

188

The fatigue of high-strength fused silica optical fibers in low humidity q  

E-Print Network (OSTI)

the effect of humidity on the kinetics of subcritical crack growth in high strength optical fibers that the rate of subcritical crack growth is given by dc dt ¼ A exp n KI KIC ; ð1� where A and n are fatigue by assuming a simple chemical kinetics model for fatigue in which the reaction rate between water and silica

Matthewson, M. John

189

Humidity-Induced Phase Transitions in Ion-Containing Block Copolymer Membranes  

E-Print Network (OSTI)

Humidity-Induced Phase Transitions in Ion-Containing Block Copolymer Membranes Moon Jeong ParkVised Manuscript ReceiVed January 3, 2008 ABSTRACT: The phase behavior of ion-containing block copolymer membranes-to-order transition is driven by an increase in the partial molar entropy of the water molecules in the ordered phase

Geissler, Phillip

190

Accuracy of Humidity Measurement on Ships: Consideration of Solar Radiation Effects  

Science Journals Connector (OSTI)

The effect of heating due to solar radiation on measurements of humidity obtained from ships is examined. Variations in wet- and dry-bulb temperature measured on each side of a research ship are shown to correlate with solar radiation. However, ...

Elizabeth C. Kent; Peter K. Taylor

1996-12-01T23:59:59.000Z

191

Safety First Safety Last Safety Always Summer in Minnesota means high humidity and sunny, hot  

E-Print Network (OSTI)

Safety First Safety Last Safety Always Summer in Minnesota means high humidity and sunny, hot days the victim liquids to drink. Treat for shock until professional medical help arrives. Heat Stress Safety Tip the information provided on the reverse side of this safety tip sheet. Please refrain from reading the information

Minnesota, University of

192

CROISSANCE DES PLANTES EN SOUS-BOIS DE FORET DENSE HUMIDE  

E-Print Network (OSTI)

CROISSANCE DES PLANTES EN SOUS-BOIS DE FORET DENSE HUMIDE (MAKOKOU, GABON) Annette HLADIK* et Gabon. Les plantes ont ete observees sur 2 transects etablis de maniere 'comparative au sein de la mosai pouvoir observer Ie devenir a long terme des for- mes vivantes marquees: au Gabon, la station IRET

Paris-Sud XI, Université de

193

Dry Bias in Vaisala RS90 Radiosonde Humidity Profiles over Antarctica PENNY M. ROWE  

E-Print Network (OSTI)

measurements made by radio- sondes. Some radiosonde humidity sensors experience a dry bias caused by solar were launched in clear skies at solar zenith angles (SZAs) near 83° and 62°. As part of this field) for SZAs near 83°; they are 20% 6% and 24% 5% for SZAs near 62°. Assuming solar heating is minimal at SZAs

Walden, Von P.

194

CHARACTERIZATION OF SORPTION BEHAVIOR OF ORIENTED STRANDBOARD UNDER LONG-TERM CYCLIC HUMIDITY  

E-Print Network (OSTI)

CHARACTERIZATION OF SORPTION BEHAVIOR OF ORIENTED STRANDBOARD UNDER LONG-TERM CYCLIC HUMIDITY Agricultural Center Baton Rouge, LA 70803-6202 (Received August 1999) ABSTRACT Sorption measurements were fit to Nelson's sorption model through nonlinear regression analysis. The model was subsequently

195

The structure and reactivity of adsorbates on stepped Rh and Pt surfaces investigated by LEED, HREELS, TPD, XPS and STM  

SciTech Connect

Defects on surfaces such as steps play an important role in surface chemistry. In order to obtain an understanding of the influence of steps in surface chemical reactions, the structure and reactivity of small molecules (O{sub 2}, CO, H{sub 2}S, and C{sub 2}H{sub 4}) on atomically stepped surfaces of RH and Pt have been investigated. The detailed structures of CO and oxygen bonded to the Rh(110) surface were determined. The CO molecules bond near the short bridge sites with the CO molecular axis tilted approximately 24{degree} from the surface normal. Oxygen atoms are bound asymmetrically in the 3-fold fcc hollow-sites to the (111) facets of the steps. The interactions of CO and oxygen on the Rh(311) surface were examined. The reaction of CO with the ordered phases of O shows two distinct reaction channels, a low temperature reaction limited channel (200 K) and a high temperature diffusion limited channel (350 K). Models of the reaction geometry and dynamics are proposed. The thermal decomposition of ethylene was examined on the Rh(311) surface. The stable decomposition species (C{sub 2}H, CH and C{sub 2}) are formed near 300 K, approximately 100 K lower on the stepped Rh(311) than on the flatter Rh(111) surface. The formation of these species at lower temperatures is attributed to the stepped nature of the surface. Finally, in situ STM was used to examine surface structural changes of a stepped Pt(111) crystal under coadsorption of sulfur and CO. This is the first direct evidence for a new mechanism by which a surface covered with an unreactive, strongly chemisorbed overlayer can form new sites, for bonding and reactions to occur, by massive surface restructuring at the step edges. This new surface phenomenon answers some of the puzzles of metal surface catalysis and its implications are described. 278 refs.

Batteas, J.D. [Univ. of California, Berkeley, CA (United States). Dept. of Chemistry]|[Lawrence Berkeley Lab., CA (United States). Materials Science Div.

1995-06-01T23:59:59.000Z

196

Immunohistochemical localization of gonadotropin releasing hormone (GnRH) in the brain and infundibulum of the sheep, cow and horse  

E-Print Network (OSTI)

to hypophysial portal and systemic blood and the release of LH. Endocrinol. 95:18. Bugnon, C. , B. Bloch, . D. Lenys and D. Fellmann. 1977. Ultrastructural study of the LH-RH containing neurons in the human fetus. Brain Res. 137:175. Dreifuss, J. J. , J. T... fulfillment of the requirement for the degree of MASTER OF SCIENCE August 1979 Major Subject: Physiology of Reproduction IMMUNOHISTOCKEMICAL LOCALIZATION OF GONADOTROPIN RELEASING HORMONE (GnRH) IN THE BRAIN AND INFUNDIBULUM OF THE SHEEP, COW AND HORSE...

Dees, William Leslie

1979-01-01T23:59:59.000Z

197

Data Center Efficiency and IT Equipment Reliability at Wider Operating Temperature and Humidity Ranges  

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

PAPER #50 PAPER #50 DATA CENTER EFFICIENCY AND IT EQUIPMENT RELIABILITY AT WIDER OPERATING TEMPERATURE AND HUMIDITY RANGES EDITOR: Steve Strutt, IBM CONTRIBUTORS: Chris Kelley, Cisco Harkeeret Singh, Thomson Reuters Vic Smith, Colt Technology Services The Green Grid Technical Committee PAGE 2 Executive Summary Extending the environmental operating parameters of a data center is one of the industry-accepted procedures for reducing overall energy consumption. Relaxing traditionally tight control over temperature and humidity should result in less power required to cool the data center. However, until recently, the impact of increased data center operating temperature on the information technology (IT) equipment installed in the data center has not been well understood. Historically, it has been widely presumed to be

198

Association of intracellular calcium oscillations with release of gonadotropin-releasing hormone (GnRH) from GT1-1 neuronal cells  

E-Print Network (OSTI)

GnRH is released from its nerve terminals via a calcium (Ca²?)-dependent mechanism. Oscillation in the intercellular Ca²? [Ca²?][] concentration may encode signals that result in the release of GnRH. The objective of this study was to investigate...

Gilmore, Chrystal Dawn

1999-01-01T23:59:59.000Z

199

Peer Reviewed Publications 7 October 2011 41 Chilson, PB, WF Frick, JF Kelly, KW Howard, RP Larkin, RH Diehl, JK Westbrook, TA  

E-Print Network (OSTI)

Peer Reviewed Publications 7 October 2011 41 Chilson, PB, WF Frick, JF Kelly, KW Howard, RP Larkin, RH Diehl, JK Westbrook, TA Kelly, TH Kunz. In Press. Partly cloudy with a chance of migration, MS Bowlin, PB Chilson, RH Diehl, RW Fléron, P Hartl, R Kays, JF Kelly, WD Robinson, M Wikelski. 2011

Kelly, Jeff

200

The U. S. Department of Energy (DOE) has submitted a planned change request to use shielded containers for emplacement of selected remote-handled (RH) transuranic  

E-Print Network (OSTI)

that the use of shielded canisters for these waste streams has an insignificant impact on long-term performance the disruptions from in-the-wall emplacement of RH TRU waste canisters while providing additional storage shielded containers for emplacement of selected remote-handled (RH) transuranic (TRU) waste streams

Note: This page contains sample records for the topic "relative humidity rh" 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

Ambient-Pressure Bulk Superconductivity Deep in the Magnetic State of CeRhIn5  

SciTech Connect

Specific heat, magnetic susceptibility and electrical transport measurements were performed at ambient pressure on high-quality single crystal specimens of CeRhIn5 down to ultra-low temperatures. We report signatures of an anomaly observed in all measured quantities consistent with a bulk phase transition to a superconducting state at T{sub c}=110 mK. Occurring far below the onset of antiferromagnetism at T{sub N}=3.8 K, this transition appears to involve a significant portion of the available low-temperature density of electronic states, exhibiting an entropy change in line with that found in other members of the 115 family of superconductors tuned away from quantum criticality.

Paglione,J.; Ho, P.; Maple, M.; Tanatar, M.; Taillefer, L.; Lee, Y.; Petrovic, C.

2008-01-01T23:59:59.000Z

202

Development and analysis of a sustainable, low energy house in a hot and humid climate  

E-Print Network (OSTI)

absorptive in the solar spectrum) and its windows are not properly shaded, 18 orientation may have a profound effect. Three subjects of importance for building orientation are: I Solar Orientation and Window ~Shadin . From the research by the Thai Gypsum... cooling effect. 23 2. 3. 4. Summary of the Literature Review on Thermal Comfort From the selected previous research, the recommendation for solar orientation in hot and humid climates is east-west direction. This direction also corresponds...

Chulsukon, Pattarayut

2012-06-07T23:59:59.000Z

203

Integrated Hygrothermal Performance of Building Envelopes and Systems in Hot and Humid Climates  

E-Print Network (OSTI)

Technology Center VTT Building Technology, Oak Ridge National Laboratory, Oak Ridge National Laboratory, Espoo, Finland Building Technology Center, Oak Ridge, Tennessee, US Oak Ridge, Tennessee, US ABSTRACT In hot and humid climates the interior... retarders reduce risk of moisture damage, Proceedings of the 4th Symposium, Building Physics in the Nordic Countries, Espoo, Finland, Sept. 9-10, pp.447-454. Karagiozis, A. and Hadjisophocleous G. "Wind- Driven Rain on High-Rise Buildings", Thermal...

Karagiozis, A. N.; Desjarlais, A.; Salonvaara, M.

2000-01-01T23:59:59.000Z

204

Direct-Expansion Air-Conditioning System Performance in Low Humidity Applications: A Case Study  

E-Print Network (OSTI)

DIRECT-EXPANSION AIR-CONDITIONING SYSTEM PERFORMANCE IN LOW HUMIDITY APPLICATIONS: A CASE STUDY MUKESH K. KHATTAR, P.E. DENNIS KEEBAUGH, P.E. Senior Systems Engineer Senior Research Engineer Florida Solar Energy Center Shenandoah Solar Center... warehouse. The flat gravel roof is exposed to sun. The 16' ceiling is insulated with two inch spray foam. Entrance to the warehouse is through sealed and insulated doors located on the west partition wall. The air -conditioning sys tem on this leased...

Khattar, M. K.; Keebaugh, D.

1987-01-01T23:59:59.000Z

205

Safety Sustainability and Public Perception of Manufactured Housing in Hot Humid Climates  

E-Print Network (OSTI)

SAFETY, SUSTAINABILITY AND PUBLIC PERCEPTION OF MANUFACTURED HOUSING IN HOT, HUMID CLIMATES K.R. Grosskopf, Ph.D., CEM Assistant Professor M.E. Rinker Sr. School of Building Construction University of Florida Gainesville, Florida David... Cutlip, MSBC Graduate Assistant M.E. Rinker Sr. School of Building Construction University of Florida Gainesville, Florida ABSTRACT Manufactured housing has become a staple in the US affordable housing market in spite of a prevailing public...

Grosskopf, K. R.; Cutlip, D.

2006-01-01T23:59:59.000Z

206

IEC Quality Assurance Task Group 5: UV, Temperature, and Humidity (Presentation)  

SciTech Connect

Taskgroup 5 (TG5) is concerned with a comparative aging standard incorporating factors including ultraviolet radiation, temperature, and humidity. Separate experiments are being conducted in support of a test standard via the regional sub-groups in Asia, Europe, and the United States. The authors will describe the objectives and timeline for TG5 as well as providing an update on the experiments in progress.

Miller, D.; Bath, J.; Kohl, M.; Shioda, T.

2014-03-01T23:59:59.000Z

207

Appropriate Conservation Measures for Single-Family Buildings in Hot, Humid Climates  

E-Print Network (OSTI)

, and skin wetness, and they should be investigated. REFERENCES 1. "Residential Conservation Service Model Audit Manual," Oak Ridge National Laboratory, ORNL/CON-103, October 1983. 2. "WE-2 Reference Manual, Version 2. LA," LBL-8706, Rev. 2, May 1981..., Thermal Comfort, Krieger Publishing Co., Malabar, Florida, 1982. 9. H. A. McLain, J. M. MacDonald, D. Goldenberg, "Appropriate Conservation Measures for Single-Family Buildings in Hot Humid Climates,'' ORNL/CON report, to be issued. 10. R. Messenger...

McLain, H. A.; MacDonald, J. M.; Goldenberg, D.

1985-01-01T23:59:59.000Z

208

V&A Medieval & Renaissance Galleries: A Passive Approach to Humidity Control  

E-Print Network (OSTI)

the existing fabric, where possible taking advantage of original chimneys and trenches. Addressing sustainability in the project required the balancing and optimisation of a range of issues that had the potential to create conflicts; artefact conservation... proportion of the time, around 7% of the occupied hours or 3 and a half weeks. This is because solar gain, occupancy load and the lighting load act to heat the space up in the morning. Eliminating low humidity levels entirely is difficult due...

Lerpiniere, A.

2011-01-01T23:59:59.000Z

209

An Analysis of Maximum Residential Energy Efficiency in Hot and Humid Climates  

E-Print Network (OSTI)

the high efficiency instantaneous water heater with electronic ignition. The largest equipment energy savings (20%) was achieved from the horizontal-axis clothes washer. Compact fluorescent lamps (CFLs) saved 75% lighting energy use. Among all...AN ANALYSIS OF MAXIMUM RESIDENTIAL ENERGY EFFICIENCY IN HOT AND HUMID CLIMATES Mini Malhotra Graduate Research Assistant Jeff Haberl, Ph.D., P.E. Professor/Associate Director Energy Systems Laboratory, Texas A&M University College...

Malhotra, M.; Haberl, J. S.

2006-01-01T23:59:59.000Z

210

PARAMETERIZATIONS FOR THE KELVIN (SURFACE TENSION) EFFECT ON THE EQUILIBRIUM RADIUS AND ASSOCIATED OPTICAL PROPERTIES OF A  

E-Print Network (OSTI)

PARAMETERIZATIONS FOR THE KELVIN (SURFACE TENSION) EFFECT ON THE EQUILIBRIUM RADIUS AND ASSOCIATED as the volume-equivalent dry radius rdry) and the fractional relative humidity h (RH/100). Surface tension also the dependence of the equilibrium size of a particle with given rdry at given relative humidity on surface

211

RH-TRU Waste Shipments from Battelle Columbus Laboratories to the Hanford Nuclear Facility for Interim Storage  

SciTech Connect

Battelle Columbus Laboratories (BCL), located in Columbus, Ohio, must complete decontamination and decommissioning (D&D) activities for nuclear research buildings and grounds by 2006, as directed by Congress. Most of the resulting waste (approximately 27 cubic meters [m3]) is remote-handled (RH) transuranic (TRU) waste destined for disposal at the Waste Isolation Pilot Plant (WIPP). The BCL, under a contract to the U.S. Department of Energy (DOE) Ohio Field Office, has initiated a plan to ship the TRU waste to the DOE Hanford Nuclear Facility (Hanford) for interim storage pending the authorization of WIPP for the permanent disposal of RH-TRU waste. The first of the BCL RH-TRU waste shipments was successfully completed on December 18, 2002. This BCL shipment of one fully loaded 10-160B Cask was the first shipment of RH-TRU waste in several years. Its successful completion required a complex effort entailing coordination between different contractors and federal agencies to establish necessary supporting agreements. This paper discusses the agreements and funding mechanisms used in support of the BCL shipments of TRU waste to Hanford for interim storage. In addition, this paper presents a summary of the efforts completed to demonstrate the effectiveness of the 10-160B Cask system. Lessons learned during this process are discussed and may be applicable to other TRU waste site shipment plans.

Eide, J.; Baillieul, T. A.; Biedscheid, J.; Forrester, T,; McMillan, B.; Shrader, T.; Richterich, L.

2003-02-26T23:59:59.000Z

212

Ternary PtSnRhSnO2 nanoclusters: synthesis and electroactivity for ethanol oxidation fuel cell reaction  

E-Print Network (OSTI)

Ternary PtSnRh­SnO2 nanoclusters: synthesis and electroactivity for ethanol oxidation fuel cell a superior long-term activity and stability towards ethanol oxidation than the commercial Pt catalyst. Our. Ethanol becomes an attractive fuel in the fuel cell reactions compared with methanol and hydrogen, because

Frenkel, Anatoly

213

Applied reaction dynamics: Efficient synthesis gas production via single collision partial oxidation of methane to CO on Rh,,111...  

E-Print Network (OSTI)

of the incident beam's translational energy, and approaches unity for energies greater than 1.3 eV. Comparison for methanol synthesis. One method is the direct partial oxidation of methane, CH4 + 1/2 O2 CO + 2H2. 1 This process has been extensively studied using high surface area supported Rh catalysts in flow reactors

Sibener, Steven

214

The effect of humid and dusty atmosphere on shock wave destruction in a glow-discharge plasma  

Science Journals Connector (OSTI)

The influence of air humidity and the dust present in air and nitrogen on the structure of a pressure momentum distribution behind a shock wave propagating across the positive column of glow discharge in these...

A. S. Baryshnikov; I. V. Basargin; M. V. Chistyakova

2007-05-01T23:59:59.000Z

215

Roots of Mold Problems and Humidity Control Measures in Institutional Buildings with Pre-Existing Mold Condition  

E-Print Network (OSTI)

Management, and the TAMU Physical Plant, was dispatched to perform Continuous Commissioning on these commercial buildings in order to find viable solutions to the humidity problem. The CC group performed extensive field tests and analysis on building air...

Chen, H.; Deng, S.; Bruner, H.; Garcia, J.

2004-01-01T23:59:59.000Z

216

Warm Humid Climate: Methodology to Study Air Temperature Distribution: Mobile Phones Base Stations as Viable Alternative for Fixed Points  

E-Print Network (OSTI)

WARM-HUMID CLIMATE: METHODOLOGY TO STUDY AIR TEMPERATURE DISTRIBUTION: MOBILE PHONES BASE STATIONS AS VIABLE ALTERNATIVE FOR FIXED POINTS Angelina Dias Leão Costa (1); Lucila Labaki (2); Virgínia Araújo (3) (1) and (2) School of Civil... of occupation with the results of measurements. In fact, in some dense areas the highest temperatures and the lowest humidity levels were found. The proposed methodology of measurements in fixed points using mobile phone base stations is original, provides...

Araujo, V.; Costa, A.; Labaki, L.

2006-01-01T23:59:59.000Z

217

Evaluation of the Performance of Houses With and Without Supplemental Dehumidification in a Hot-Humid Climate  

SciTech Connect

This report, Evaluation of the Performance of Houses with and without Supplemental Dehumidification in a Hot-Humid Climate, describes a research study that that was conducted by the Building Science Corporation (BSC) Building America Research Team. BSC seeks to research and report on the field monitoring of the performance of in-situ supplemental dehumidification systems in low energy, high performance, homes in a Hot-Humid climate. The purpose of this research project was to observe and compare the humidity control performance of new, single family, low energy, and high performance, homes. Specifically, the study sought to compare the interior conditions and mechanical systems operation between two distinct groups of houses, homes with a supplemental dehumidifier installed in addition to HVAC system, and homes without any supplemental dehumidification. The subjects of the study were ten single-family new construction homes in New Orleans, LA.Data logging equipment was installed at each home in 2012. Interior conditions and various end-use loads were monitored for one year. In terms of averages, the homes with dehumidifiers are limiting elevated levels of humidity in the living space. However, there was significant variation in humidity control between individual houses. An analysis of the equipment operation did not show a clear correlation between energy use and humidity levels. In general, no single explanatory variable appears to provide a consistent understanding of the humidity control in each house. Indoor humidity is likely due to all of the factors we have examined, and the specifics of how they are used by each occupant.

Kerrigan, P.; Norton, P.

2014-10-01T23:59:59.000Z

218

Efficacy of rhBMP-2 loaded PCL/PLGA/?-TCP guided bone regeneration membrane fabricated by 3D printing technology for reconstruction of calvaria defects in rabbit  

Science Journals Connector (OSTI)

We successfully fabricated a three-dimensional (3D) printing-based PCL/PLGA/?-TCP guided bone regeneration (GBR) membrane that slowly released rhBMP-2. To impregnate the GBR membrane with intact rhBMP-2, collagen solution encapsulating rhBMP-2 (5?µg?ml?1) was infused into pores of a PCL/PLGA/?-TCP membrane constructed using a 3D printing system with four dispensing heads. In a release profile test, sustained release of rhBMP-2 was observed for up to 28?d. To investigate the efficacy of the GBR membrane on bone regeneration, PCL/PLGA/?-TCP membranes with or without rhBMP-2 were implanted in an 8?mm calvaria defect of rabbits. Bone formation was evaluated at weeks 4 and 8 histologically and histomorphometrically. A space making ability of the GBR membrane was successfully maintained in both groups, and significantly more new bone was formed at post-implantation weeks 4 and 8 by rhBMP-2 loaded GBR membranes. Interestingly, implantation with rhBMP-2 loaded GBR membranes led to almost entire healing of calvaria defects within 8?weeks.

Jin-Hyung Shim; Min-Chul Yoon; Chang-Mo Jeong; Jinah Jang; Sung-In Jeong; Dong-Woo Cho; Jung-Bo Huh

2014-01-01T23:59:59.000Z

219

Energy Retrofit Field Study and Best Practices in a Hot-Humid Climate  

SciTech Connect

Energy efficiency improvement as a component of comprehensive renovation was investigated under U.S. Department of Energy (DOE) funding of the Building America Partnership for Improved Residential Construction (BA-PIRC). Researchers at the Florida Solar Energy Center (FSEC) worked with affordable housing partners renovating foreclosed homes built from the 1950's through the 2000's in the hot-humid climate (within the Southern census region), primarily in Florida. Researchers targeted a 30% improvement in whole-house energy efficiency along with the health and safety, durability, and comfort guidelines outlined in DOE's Builders Challenge Program (Version 1) Quality Criteria.

McIvaine, J.; Sutherland, K.; Martin, E.

2013-03-01T23:59:59.000Z

220

?ot8rh QI ahnloal Corporation In Hart IUnover, Ma86rohusett8,  

Office of Legacy Management (LM)

GE 1 GE 1 ;" qr)-1 s?llq ' p raspy.. c" ifa K. mris I talked with Hr. Wllllm cIF(Iy, Metrllurgist, Wnlon CarbId@ Nuclear cOrp8ny, 08k B&t&$@, Tenne66ee, on April 26, 1961. He informed me th&t the #rtioMl Northern birislon, Ame~ic6.n ?ot8rh QI ahnloal Corporation In Hart IUnover, Ma86rohusett8, la pePfopn1~ lo8lve forming studier for the. ilnion olo)w Wuolem Conpmy "p l7?JHa). The work at National Northern l#rirc.- alon ir under the 6upenl6lon of Ehsll Phillpohuc4~, v of Spealrl Prcbduots. The @ox& to data ha8 been pwfonwd wlth 430 strlnle66 rteel and urma%um metal - both hot snb 0018 wor4c have been performed at pr688u~r fmm 100,000 to 900,000 prl. The shape of the pleu88 na not dlrolored. In 6<lon work ha6 been done with

Note: This page contains sample records for the topic "relative humidity rh" 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

Ternary Pt/Rh/SnO2 Electrocatalysts for Oxidizing Ethanol to CO2  

SciTech Connect

Ethanol, with its high energy density, likely production from renewable sources and ease of storage and transportation, is almost the ideal combustible for fuel cells wherein its chemical energy can be converted directly into electrical energy. However, commercialization of direct ethanol fuel cells has been impeded by ethanol's slow, inefficient oxidation even at the best electrocatalysts. We synthesized a ternary PtRhSnO{sub 2}/C electrocatalyst by depositing platinum and rhodium atoms on carbon-supported tin dioxide nanoparticles that is capable of oxidizing ethanol with high efficiency and holds great promise for resolving the impediments to developing practical direct ethanol fuel cells. This electrocatalyst effectively splits the C-C bond in ethanol at room temperature in acid solutions, facilitating its oxidation at low potentials to CO{sub 2}, which has not been achieved with existing catalysts. Our experiments and density functional theory calculations indicate that the electrocatalyst's activity is due to the specific property of each of its constituents, induced by their interactions. These findings help explain the high activity of Pt-Ru for methanol oxidation and the lack of it for ethanol oxidation, and point to the way to accomplishing the C-C bond splitting in other catalytic processes.

Adzic, R.R.; Kowal, A.; Li, M.; Shao, M.; Sasaki, K.; Vukmirovic, M.B.; Zhang, J.; Marinkovic, N.S. Liu, P.; Frenkel, A.I.

2009-04-01T23:59:59.000Z

222

Ternary Pt/Rh/SnO2 Electrocatalysts for Oxidizing Ethanol to CO2  

SciTech Connect

Ethanol, with its high energy density, likely production from renewable sources and ease of storage and transportation, is almost the ideal combustible for fuel cells wherein its chemical energy can be converted directly into electrical energy. However, commercialization of direct ethanol fuel cells has been impeded by ethanol's slow, inefficient oxidation even at the best electrocatalysts1, 2. We synthesized a ternary PtRhSnO2/C electrocatalyst by depositing platinum and rhodium atoms on carbon-supported tin dioxide nanoparticles that is capable of oxidizing ethanol with high efficiency and holds great promise for resolving the impediments to developing practical direct ethanol fuel cells. This electrocatalyst effectively splits the C-C bond in ethanol at room temperature in acid solutions, facilitating its oxidation at low potentials to CO2, which has not been achieved with existing catalysts. Our experiments and density functional theory calculations indicate that the electrocatalyst's activity is due to the specific property of each of its constituents, induced by their interactions. These findings help explain the high activity of Pt-Ru for methanol oxidation and the lack of it for ethanol oxidation, and point to the way to accomplishing the C-C bond splitting in other catalytic processes.

Kowal, A.; Li, M; Shao, M; Sasaki, K; Vukmirovic, M; Zhang, J; Marinkovic, N; Liu, P; Frenkel, A; Adzic, R

2009-01-01T23:59:59.000Z

223

Rh i isoelectronic sequence observed from Er[sup 23+] to Pt[sup 33+  

SciTech Connect

The TEXT tokamak was used to obtain spectra of highly ionized Er, Yb, Hf, W, and Pt. Injection of these elements into the plasma was achieved by laser ablation of thin films of metal deposited on glass slides and mounted at the inner wall of the vessel. The spectra were photographed with a 2.2-m grazing-incidence spectrograph set at a grazing angle of 4[degree]. These spectra occur in a very small wavelength interval, for example, [similar to]2 A at 50 A in W. In this spectral range we previously classified lines of the Ag and Pd isoelectronic sequences. We have now classified lines of the Rh isoelectronic sequence 4[ital d][sup 9--4][ital d][sup 84][ital f], which accounts for the remaining strong lines in this dense but well-resolved group. No lines of this array have previously been identified. They were classified by comparison of observed and calculated transition energies along the isoelectronic sequence.

Sugar, J.; Kaufman, V. (National Institute of Standards and Technology, Gaithersburg, Maryland 20899 (United States)); Rowan, W.L. (Fusion Research Center, University of Texas, Austin, Texas 78712 (United States))

1993-11-01T23:59:59.000Z

224

A comparison of LH responses to intracerebroventricular, subcutaneous and intravenous administration of small doses of GnRH in cattle  

E-Print Network (OSTI)

to extend special appreciation to my colleagues Curtis J. Dillon and Colleen M. Downey for their cooperation and assistance throughout this endeavor. vi DEDICATION This manuscript is dedicated to my parents, Mr. and Mrs. Richard Rund for their support... demonstrated increased response parameters to GnRH when compared to those that were suckled (Carruthers and Hafs, 1980). The effect of suckling on LH response is believed by many to be linked to prolactin (Prl). However, Prl infusion did not influence...

Rund, Lauretta Ann

2012-06-07T23:59:59.000Z

225

Safety evaluation for packaging (onsite) for the concrete-shielded RH TRU drum for the 327 Postirradiation Testing Laboratory  

SciTech Connect

This safety evaluation for packaging authorizes onsite transport of Type B quantities of radioactive material in the Concrete Shielded Remote-Handled Transuranic Waste (RH TRU) Drum per HNF-PRO-154, Responsibilities and Procedures for all Hazardous Material Shipments. The drum will be used for transport of 327 Building legacy waste from the 300 Area to a solid waste storage facility on the Hanford Site.

Smith, R.J.

1998-03-31T23:59:59.000Z

226

HVAC Design Strategy for a Hot-Humid Production Builder, Houston, Texas (Fact Sheet)  

SciTech Connect

BSC worked directly with the David Weekley Homes - Houston division to redesign three floor plans in order to locate the HVAC system in conditioned space. The purpose of this project is to develop a cost effective design for moving the HVAC system into conditioned space. In addition, BSC conducted energy analysis to calculate the most economical strategy for increasing the energy performance of future production houses. This is in preparation for the upcoming code changes in 2015. The builder wishes to develop an upgrade package that will allow for a seamless transition to the new code mandate. The following research questions were addressed by this research project: 1. What is the most cost effective, best performing and most easily replicable method of locating ducts inside conditioned space for a hot-humid production home builder that constructs one and two story single family detached residences? 2. What is a cost effective and practical method of achieving 50% source energy savings vs. the 2006 International Energy Conservation Code for a hot-humid production builder? 3. How accurate are the pre-construction whole house cost estimates compared to confirmed post construction actual cost? BSC and the builder developed a duct design strategy that employs a system of dropped ceilings and attic coffers for moving the ductwork from the vented attic to conditioned space. The furnace has been moved to either a mechanical closet in the conditioned living space or a coffered space in the attic.

Not Available

2014-03-01T23:59:59.000Z

227

Heating, Ventilation, and Air Conditioning Design Strategy for a Hot-Humid Production Builder  

SciTech Connect

BSC worked directly with the David Weekley Homes - Houston division to redesign three floor plans in order to locate the HVAC system in conditioned space. The purpose of this project is to develop a cost effective design for moving the HVAC system into conditioned space. In addition, BSC conducted energy analysis to calculate the most economical strategy for increasing the energy performance of future production houses. This is in preparation for the upcoming code changes in 2015. The builder wishes to develop an upgrade package that will allow for a seamless transition to the new code mandate. The following research questions were addressed by this research project: 1. What is the most cost effective, best performing and most easily replicable method of locating ducts inside conditioned space for a hot-humid production home builder that constructs one and two story single family detached residences? 2. What is a cost effective and practical method of achieving 50% source energy savings vs. the 2006 International Energy Conservation Code for a hot-humid production builder? 3. How accurate are the pre-construction whole house cost estimates compared to confirmed post construction actual cost? BSC and the builder developed a duct design strategy that employs a system of dropped ceilings and attic coffers for moving the ductwork from the vented attic to conditioned space. The furnace has been moved to either a mechanical closet in the conditioned living space or a coffered space in the attic.

Kerrigan, P.

2014-03-01T23:59:59.000Z

228

Approaches to 30% Energy Savings at the Community Scale in the Hot-Humid Climate  

SciTech Connect

BA-PIRC has worked with several community-scale builders within the hot humid climate zone to improve performance of production, or community scale, housing. Tommy Williams Homes (Gainesville, FL), Lifestyle Homes (Melbourne, FL), and Habitat for Humanity (various locations, FL) have all been continuous partners of the BA Program and are the subjects of this report to document achievement of the Building America goal of 30% whole house energy savings packages adopted at the community scale. The scope of this report is to demonstrate achievement of these goals though the documentation of production-scale homes built cost-effectively at the community scale, and modeled to reduce whole-house energy use by 30% in the Hot Humid climate region. Key aspects of this research include determining how to evolve existing energy efficiency packages to produce replicable target savings, identifying what builders' technical assistance needs are for implementation and working with them to create sustainable quality assurance mechanisms, and documenting the commercial viability through neutral cost analysis and market acceptance. This report documents certain barriers builders overcame and the approaches they implemented in order to accomplish Building America (BA) Program goals that have not already been documented in previous reports.

Thomas-Rees, S.; Beal, D.; Martin, E.; Fonorow, K.

2013-03-01T23:59:59.000Z

229

Absorption and translocation of 2,4-D in beans as influenced by relative humidity and soil moisture  

E-Print Network (OSTI)

'cni't for slimlinc flu'rescont 1. :mes for pl--t Pro". ~th chambers, Pl, nt 1'hysiol. 25iIJ6-91, . Rice~ 8. L, 19IJ. O ~ Absorption anl translocation of ammoni~ 2, ~t-dichlorophenoxy'. estate by bean plex ts. act G 109:F01-31$, Richards, L. AD and liadlel~h~ C, Il...

Leinweber, Charles Lee

1953-01-01T23:59:59.000Z

230

The flowering and growth response of peanut plants (Arachis hypogaea L. var. Starr) at two different levels of relative humidity  

E-Print Network (OSTI)

-type peanut seeds. Plant Physiol, 4. 5: 268-272. 26. Lyon, C. J. 1965. Auxin transport in geotropic curvalutss of a branched plant. Plant Physiol. 4. 0z 18-24. . 27. Marais, J, Pe y J. L. DeWit and G. V. Quicke. 1966. A critical examination of the Nelson...

Lee, Thomas Alonzo

1970-01-01T23:59:59.000Z

231

Size effect of hematite and corundum inclusions on the efflorescence relative humidities of aqueous ammonium nitrate particles  

E-Print Network (OSTI)

and Structure: Aerosols and particles (0345, 4801); 0345 Atmospheric Composition and Structure: Pollution ammonium nitrate particles Jeong-Ho Han Department of Environmental Chemistry, Atmospheric Science Division by the saturation of the aqueous solution with respect to the solid. INDEX TERMS: 0305 Atmospheric Composition

232

Theoretical full power correction factors as related to changes in ambient temperature, pressure and absolute humidity for aircraft turbine engines  

E-Print Network (OSTI)

turbine or jet engine since it is based on the actual thermodynamic Brayton cycle. ACKNOHLEDGEMEHTS Assistance and advice from many people have contributed greatly to this research. The Author is grateful to Professor Stanley H. Lowy from... The nature of the probj em Objectives Background 1 3 4 4 7 1I EFFECTS OF STATE POINT VARIATIONS ? General ? Variations of inlet state points with temperature and pressure III IDEAL AND ACTUAL CYCLE ANALYSIS 21 General Variations of power...

Raphael, Michel Antoun

2012-06-07T23:59:59.000Z

233

Mg{sub 8}Rh{sub 4}B - A new type of boron stabilized Ti{sub 2}Ni structure  

SciTech Connect

The new magnesium rhodium boron compound Mg{sub 8}Rh{sub 4}B has been synthesized by reaction of the metal powders with crystalline or amorphous boron or the RhB precursor. The crystal structure of Mg{sub 8}Rh{sub 4}B was solved using single-crystal X-ray diffraction data (space group Fd3-bar m, a=12.1711(4)A, Z=8, 174 reflections, R{sub F}=0.016). The crystal structure can be described as a filled Ti{sub 2}Ni type where the interstitial sites 8b (12,12,12), located at the center of two nested Mg{sub 4}Rh{sub 4} tetrahedra, are occupied by boron atoms. Taking into account the absence of the Ti{sub 2}Ni-type phase in the binary Mg-Rh system, the boron atoms can be considered as stabilizing this structural motif. From the bonding analysis with the electron localization function the crystal structure is described as covalently bonded [Rh{sub 4}B]{sup 3-} anions, embedded in a cationic magnesium matrix.

Alekseeva, A.M. [Max-Planck-Institut fuer Chemische Physik fester Stoffe, Noethnitzer Strasse 40, 01187 Dresden (Germany) and Department of Chemistry, Moscow State University, Moscow 119992 (Russian Federation)]. E-mail: alekseev@cpfs.mpg.de; Abakumov, A.M. [Max-Planck-Institut fuer Chemische Physik fester Stoffe, Noethnitzer Strasse 40, 01187 Dresden (Germany); Department of Chemistry, Moscow State University, Moscow 119992 (Russian Federation); EMAT, University of Antwerp, Antwerp B-2020 (Belgium); Leithe-Jasper, A. [Max-Planck-Institut fuer Chemische Physik fester Stoffe, Noethnitzer Strasse 40, 01187 Dresden (Germany); Schnelle, W. [Max-Planck-Institut fuer Chemische Physik fester Stoffe, Noethnitzer Strasse 40, 01187 Dresden (Germany); Prots, Yu. [Max-Planck-Institut fuer Chemische Physik fester Stoffe, Noethnitzer Strasse 40, 01187 Dresden (Germany); Chizhov, P.S. [Max-Planck-Institut fuer Chemische Physik fester Stoffe, Noethnitzer Strasse 40, 01187 Dresden (Germany); Department of Chemistry, Moscow State University, Moscow 119992 (Russian Federation); Van Tendeloo, G. [EMAT, University of Antwerp, Antwerp B-2020 (Belgium); Antipov, E.V. [Department of Chemistry, Moscow State University, Moscow 119992 (Russian Federation); Grin, Yu. [Max-Planck-Institut fuer Chemische Physik fester Stoffe, Noethnitzer Strasse 40, 01187 Dresden (Germany)

2006-09-15T23:59:59.000Z

234

TiO{sub 2} nanotube-based field effect transistors and their application as humidity sensors  

SciTech Connect

Highlights: Black-Right-Pointing-Pointer Individual TiO{sub 2} nanotubes fabricated by directly anodizing a Ti foil followed by ultrasonification. Black-Right-Pointing-Pointer Individual TiO{sub 2} nanotubes used to construct field effect transistors. Black-Right-Pointing-Pointer Electrical properties measured from the TiO{sub 2} nanotube-based field effect transistors. Black-Right-Pointing-Pointer Sensitive response of the TiO{sub 2} nanotube-based field effect transistors to water vapor. -- Abstract: TiO{sub 2} nanotubes are the building units of various devices of energy- and environment-related applications and the property studies of individual TiO{sub 2} nanotubes are important to understand and improve the performance of TiO{sub 2} nanotubes-based devices. Here we report the electrical property study of individual TiO{sub 2} nanotubes enabled by the construction of field effect transistors based on individual TiO{sub 2} nanotubes. It is found that individual TiO{sub 2} nanotubes exhibit typical n-type electrical conduction characteristics, with electron mobility of 6.9 Multiplication-Sign 10{sup -3} cm{sup 2}/V s at V{sub ds} = 1 V, and electron concentration of 2.8 Multiplication-Sign 10{sup 17} cm{sup -3}. Moreover, the on-off ratio of the TiO{sub 2} nanotube-based field effect transistors is as high as 10{sup 3}. Humidity sensing test shows the sensitive response of the individual TiO{sub 2} nanotubes to water vapor.

Liang, Fengxia [Department of Physics and Materials Science, City University of Hong Kong, Kowloon, Hong Kong Special Administrative Region (Hong Kong)] [Department of Physics and Materials Science, City University of Hong Kong, Kowloon, Hong Kong Special Administrative Region (Hong Kong); Luo, Lin-Bao [School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei 230009, Anhui (China)] [School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei 230009, Anhui (China); Tsang, Chun-Kwan; Zheng, Lingxia; Cheng, Hua [Department of Physics and Materials Science, City University of Hong Kong, Kowloon, Hong Kong Special Administrative Region (Hong Kong)] [Department of Physics and Materials Science, City University of Hong Kong, Kowloon, Hong Kong Special Administrative Region (Hong Kong); Li, Yang Yang, E-mail: yangli@cityu.edu.hk [Department of Physics and Materials Science, City University of Hong Kong, Kowloon, Hong Kong Special Administrative Region (Hong Kong)

2012-01-15T23:59:59.000Z

235

Expert Meeting: Recommended Approaches to Humidity Control in High Performance Homes  

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

Meeting: Meeting: Recommended Approaches to Humidity Control in High Performance Homes Armin Rudd Building Science Corporation (BSC) July 2013 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees, subcontractors, or affiliated partners makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement,

236

PARAMETRIC STUDY OF GROUND SOURCE HEAT PUMP SYSTEM FOR HOT AND HUMID CLMATE  

SciTech Connect

The U-tube sizes and varied thermal conductivity with different grout materials are studied based on the benchmark residential building in Hot-humid Pensacola, Florida. In this study, the benchmark building is metered and the data is used to validate the simulation model. And a list of comparative simulation cases with varied parameter value are simulated to study the importance of pipe size and grout to the ground source heat pump energy consumption. The simulation software TRNSYS [1] is employed to fulfill this task. The results show the preliminary energy saving based on varied parameters. Future work needs to be conducted for the cost analysis, include the installation cost from contractor and materials cost.

Jiang Zhu; Yong X. Tao

2011-11-01T23:59:59.000Z

237

Humidity-resistant ambient-temperature solid-electrolyte amperometric sensing apparatus  

DOE Patents (OSTI)

Apparatus and methods for detecting selected chemical compounds in air or other gas streams at room or ambient temperature includes a liquid-free humidity-resistant amperometric sensor comprising a sensing electrode and a counter and reference electrode separated by a solid electrolyte. The sensing electrode preferably contains a noble metal, such as Pt black. The electrolyte is water-free, non-hygroscopic, and substantially water-insoluble, and has a room temperature ionic conductivity [>=]10[sup [minus]4] (ohm-cm)[sup [minus]1], and preferably [>=]0.01 (ohm-cm)[sup [minus]1]. The conductivity may be due predominantly to Ag[sup +] ions, as in Ag[sub 2]WO[sub 4], or to F[sup [minus

Zaromb, S.

1994-06-21T23:59:59.000Z

238

Reducing Thermal Losses and Gains With Buried and Encapsulated Ducts in Hot-Humid Climates  

SciTech Connect

The Consortium for Advanced Residential Buildings (CARB) monitored three houses in Jacksonville, FL, to investigate the effectiveness of encapsulated and encapsulated/buried ducts in reducing thermal losses and gains from ductwork in unconditioned attics. Burying ductwork beneath loose-fill insulation has been identified as an effective method of reducing thermal losses and gains from ductwork in dry climates, but it is not applicable in humid climates where condensation may occur on the outside of the duct jacket. By encapsulating the ductwork in closed cell polyurethane foam (ccSPF) before burial beneath loose-fill mineral fiber insulation, the condensation potential may be reduced while increasing the R-value of the ductwork.

Shapiro, C.; Magee, A.; Zoeller, W.

2013-02-01T23:59:59.000Z

239

Efficient Multifamily Homes in a Hot-Humid Climate by Atlantic Housing Partners  

SciTech Connect

With assistance from the Florida Solar Energy Center (FSEC) and its Building America Partnership for Improved Residential Construction (BA-PIRC), Atlantic Housing Partners (AHP) has implemented a high performance, systems engineered package of measures. This report demonstrates how the initiative achieves Building America (BA) goals of 30%-50% energy savings. Specifically, the goals are documented as being achieved in the new construction multifamily housing sector in the hot humid climate. Results from energy modeling of the high performance package are presented. The role of utility allowance calculations, used as part of the low-income housing tax credit process, to value those energy savings is discussed, as is customer satisfaction with heat pump water heaters.

Chasar, D.; Martin, E.

2013-04-01T23:59:59.000Z

240

Exploring Cost-Effective, High Performance Residential Retrofits for Affordable Housing in the Hot Humid Climate  

SciTech Connect

In 2009, a Department of Energy Building America team led by the Florida Solar Energy Center began working with partners to find cost-effective paths for improving the energy performance of existing homes in the hot humid climate. A test-in energy audit and energy use modeling of the partner's proposed renovation package was performed for 41 affordable and middle income foreclosed homes in Florida and Alabama. HERS1 Indices ranged from 92 to 184 with modeled energy savings ranging from 3% to 50% (average of 26%). Analyses and recommendations were discussed with partners to encourage more efficient retrofits, highlight health and safety issues, and gather feedback on incremental cost of high performance measures. Ten completed renovations have modeled energy savings ranging from 9% to 48% (average 31%.) This paper presents the project's process including our findings thus far and highlights of the first home to meet the target HERS Index of 70.

McIlvaine, Janet; Sutherland, Karen; Schleith, Kevin; Chandra, Subrato

2010-08-27T23:59:59.000Z

Note: This page contains sample records for the topic "relative humidity rh" 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

Performance of Variable Capacity Heat Pumps in a Mixed Humid Climate  

SciTech Connect

Variable capacity heat pumps represent the next wave of technology for heat pumps. In this report, the performance of two variable capacity heat pumps (HPs) is compared to that of a single or two stage baseline system. The units were installed in two existing research houses located in Knoxville, TN. These houses were instrumented to collect energy use and temperature data while both the baseline systems and variable capacity systems were installed. The homes had computer controlled simulated occupancy, which provided consistent schedules for hot water use and lighting. The temperature control and energy use of the systems were compared during both the heating and cooling seasons. Multiple linear regression models were used along with TMY3 data for Knoxville, TN in order to normalize the effect that the outdoor air temperature has on energy use. This enables a prediction of each system's energy use over a year with the same weather. The first system was a multi-split system consisting of 8 indoor units and a single outdoor unit. This system replaced a 16 SEER single stage HP with a zoning system, which served as the baseline. Data was collected on the baseline system from August 2009 to December 2010 and on the multi-split system from January 2011 to January 2012. Soon after the installation of the multi-split system, some of the smaller rooms began over-conditioning. This was determined to be caused by a small amount of continuous refrigerant flow to all of the indoor units when the outdoor unit was running regardless of whether they were calling for heat. This, coupled with the fact that the indoor fans run continuously, was providing enough heat in some rooms to exceed the set point. In order to address this, the indoor fans were disabled when not actively heating per the manufacturer's recommendation. Based on the measured data, the multi-split system was predicted to use 40% more energy in the heating season and 16% more energy in the cooling season than the baseline system, for the typical meteorological year weather data. The AHRI ratings indicated that the baseline system would perform slightly better than the multi-split system, but not by as large of a margin as seen in this study. The multi-split system was able to maintain more consistent temperature throughout the house than the baseline system, but it did allow relative humidity levels to increase above 60% in the summer. The second system was a split system with an inverter driven compressor and a single ducted air handler. This unit replaced a 16 SEER two stage HP with a zoning system. Data was collected on the baseline system from July 2009 to November 2010 and on the ducted inverter system from December 2010 to January 2012. The ducted inverter system did not offer a zone controller, so it functioned as a single zone system. Due to this fact, the registers had to be manually adjusted in order to better maintain consistent temperatures between the two levels of the house. The predicted heating season energy use for the ducted inverter system, based on the measured energy use, was 30% less than that of the baseline system for the typical meteorological year. However, the baseline system was unable to operate in its high stage due to a wiring issue with the zone controller. This resulted in additional resistance heat use during the winter and therefore higher energy use than would be expected in a properly performing unit. The AHRI ratings would indicate that the baseline system would use less energy than the ducted inverter system, which is opposite to the results of this study. During the cooling season, the ducted inverter system was predicted to use 23% more energy than the baseline system during the typical meteorological year. This is also opposite of the results expected by comparing the AHRI ratings. After a detailed comparison of the ducted inverter system's power use compared to that of a recently installed identical system at a retro-fit study house, there is concern that the unit is not operating as intended. The power use and cycles indicate t

Munk, Jeffrey D [ORNL; Gehl, Anthony C [ORNL; Jackson, Roderick K [ORNL

2012-04-01T23:59:59.000Z

242

Exploring Maximum Humidity Control and Energy Conservation Opportunities with Single Duct Single Zone Air-Handling Units  

E-Print Network (OSTI)

Humidity control for single-duct single-zone (SDSZ) constant volume air handling units is known to be a challenge. The operation of these systems is governed by space temperature only. Under mild weather conditions, discharge air temperature can get...

Zhou, J.; Wei, G.; Turner, W. D.; Deng, S.; Claridge, D.

2006-01-01T23:59:59.000Z

243

Atmospheric Pressure Humid Argon DBD Plasma for the Application of Sterilization -Measurement and Simulation of Hydrogen, Oxygen, and Hydrogen  

E-Print Network (OSTI)

Atmospheric Pressure Humid Argon DBD Plasma for the Application of Sterilization - Measurement, sterilization I. INTRODUCTION Non-thermal plasma technology at atmospheric pressure using oxygen of atmospheric pressure non-thermal argon plasma produced by a variety of techniques has recently begun

Paris-Sud XI, Université de

244

Solar-Powered, Liquid-Desiccant Air Conditioner for Low-Electricity Humidity Control: Report and Summary Report  

SciTech Connect

The primary objective of this project was to demonstrate the capabilities of a new high-performance, liquid-desiccant dedicated outdoor air system (DOAS) to enhance cooling efficiency and comfort in humid climates while substantially reducing electric peak demand at Tyndall Air Force Base (AFB), which is 12 miles east of Panama City, Florida.

Dean, J.; Kozubal, E.; Herrmann, L.; Miller, J.; Lowenstein, A.; Barker, G.; Slayzak, S.

2012-11-01T23:59:59.000Z

245

Carbon accumulation in the biomass and soil of different aged secondary forests in the humid tropics of Costa Rica  

E-Print Network (OSTI)

it mainly in hard biomass (wood) with a slow turnover rate of 14­19 years for native forests in ChileCarbon accumulation in the biomass and soil of different aged secondary forests in the humid Received in revised form 17 June 2011 Accepted 21 June 2011 Available online 23 July 2011 Keywords: Biomass

Rey Benayas, José María

246

Understanding the effect of Sm2O3 and CeO2 promoters on the structure and activity of Rh/Al2O3 catalysts in methane steam reforming  

Science Journals Connector (OSTI)

The role of Sm2O3 and CeO2 promoters on the structural properties and catalytic behavior of Rh/xSm2O3–yCeO2–Al2O3 catalysts during methane steam reforming (MSR) was investigated. Promoted catalysts showed higher reaction rates per surface Rh atom and improved stability compared to Rh/Al2O3. In situ X-ray absorption revealed that the structure of Rh particles in Rh/Al2O3 changes drastically during MSR, while it was stable in the presence of Sm2O3–CeO2. Sintering of the active metal phase was the main cause of deactivation. STEM images showed stronger Rh agglomeration of the unpromoted catalyst with time on stream.

R.B. Duarte; M. Nachtegaal; J.M.C. Bueno; J.A. van Bokhoven

2012-01-01T23:59:59.000Z

247

Technical and Economic Analysis of Chemical Looping Combustion with Humid Air Turbine Power Cycle  

Science Journals Connector (OSTI)

Abstract Chemical looping combustion (CLC) is an innovative concept that offers potentially attractive option to capture CO2 with appreciably lower thermal efficiency penalties when compared to the tradition approaches. This paper presents process simulation, technical and economic analysis of the CLC integrated with humid air turbine (HAT) cycle for natural gas-fired power plant with CO2 capture. Aspen Plus® process simulator and Aspen Process Economic Analyzer® were employed for technical and economic analysis of the CLC-HAT and conventional HAT cycle.The analysis shows the CLC- HAT cycle has a thermal efficiency of 57 % at oxidizing temperature of 1,200 oC and reducer inlet temperature of 530 oC. The economic evaluation performed shows that a 50 MWth CLC-HAT plant with a projected lifetime of 30 y has a payback period of 6 y compared to 7 y for conventional HAT cycle. This indicates that CLC-HAT cycle is commercially viable with respect to CO2 capture cost.

Akeem Olaleye; Meihong Wang

2014-01-01T23:59:59.000Z

248

Efficient Solar to Chemical Conversion: 12% Efficient Photoassisted Electrolysis in the [p-type InP(Ru)]/HCl-KCl/Pt(Rh) Cell  

Science Journals Connector (OSTI)

The photoelectrochemical cell [p-type InP(Ru)]/HCl-KCl/Pt(Rh) converts 12% of the incident solar energy into two useful chemicals, hydrogen and chlorine, by photoassisted electrolysis of aqueous hydrochloric acid. At the threshold for electrolysis, the voltage required is reduced from 1.3 to 0.65 V. Hydrogen evolution takes place at microscopic islands of catalysts such as Rh, Ru, and Pt. The high efficiency of the cell derives from a thin surface oxide on InP, preventing carrier recombination, and from efficient transport of electrons to the catalyst.

Adam Heller and Richard G. Vadimsky

1981-04-27T23:59:59.000Z

249

Building America Top Innovations Hall of Fame Profile … Moisture and Ventilation Solutions in Hot, Humid Climates: Florida Manufactured Housing  

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

Duct leakage was a key factor in moisture Duct leakage was a key factor in moisture damage in manufactured homes in humid climates. BUILDING AMERICA TOP INNOVATIONS HALL OF FAME PROFILE INNOVATIONS CATEGORY: 2. House-as-a-System Solutions 2.1 New Homes with Whole-House Packages Moisture and Ventilation Solutions in Hot, Humid Climates: Florida Manufactured Housing Research by Building America diagnosed the causes and prescribed a cure that dramatically reduced moisture problems in manufactured housing in Florida. In the late 1990s, Building America researchers at the Florida Solar Energy Center (FSEC) worked with manufactured home builders to diagnose moisture problems in homes in Florida. Moisture issues were so severe that in some homes researchers could push their fingers through the saturated drywall. Using a

250

Building America Best Practices Series Volume 15: 40% Whole-House Energy Savings in the Hot-Humid Climate  

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

This guide book is a resource to help builders design and construct highly energy-efficient homes, while addressing building durability, indoor air quality, and occupant health, safety, and comfort. With the measures described in this guide, builders in the hot-humid climate can build homes that achieve whole house energy savings of 40% over the Building America benchmark (the 1993 Model Energy Code) with no added overall costs for consumers.

251

Natural Ventilation Applications in Hot-humid Climate: A Preliminary Design for the College of Design at NTUST  

E-Print Network (OSTI)

to create a comfortable architectural environment, especially in a hot, humid climate such as that of Taiwan. However, the air currents of urban wind fields are unpredictable and whimsical. The conventional architectural design process does not employ... awkward. In addition, with increased awareness of the impact of climate change and greenhouse emissions, the effective usage of natural ventilation will likely become a crucial element in reducing the energy consumption of buildings. In improving...

Lin, M. T.; Wei, H. Y.; Lin, Y. J.; Wu, H. F.; Liu, P. H.

252

Case Study of Stratified Chilled Water Storage Utilization for Comfort and Process Cooling in a Hot, Humid Climate  

E-Print Network (OSTI)

of the system and its operation is followed by presentation of operating data taken during 1997. INTRODUCTION Chilled water thermal energy storage ('TES) in naturally stratified tanks has been shown to be a valuable central cooling plant load management... and humid environment and presents new data on the performance of a large stratified chilled water storage tank. Figure 1. Plant Schematic. SITE The case study site is the Dallas, TX world headquarters of a major semiconductor manufacturer. The 6...

Bahnfleth, W. P.; Musser, A.

1998-01-01T23:59:59.000Z

253

The Successful Design Construction and 'Live-ability' of an Energy Efficient Home in a Hot and Humid Climate  

E-Print Network (OSTI)

completed in 2004 in the hot and humid climate near Houston, Texas. The presentation will include comparisons between this renewable energy home and several homes of typical construction. The paper will include the implementation of design... for an Energy Star home with the extensive use of fluorescent lighting, ceiling fans and Energy Star appliances including a 14 SEER air conditioner. In addition to the energy efficient construction, a hybrid 2 KW wind/solar PV (photovoltaic) system...

Gardner, J. C.

2006-01-01T23:59:59.000Z

254

Development of a Simplified Simulation Tool for High Performance K-5 Schools in Hot and Humid Climates  

E-Print Network (OSTI)

hourly building energy usage: The great energy predictor shootout-overview and discussion of results. ASHRAE Transactions 100(2):1104-1118. Perkins, B. 2001. Building type basics for elementary and secondary schools, John Wiley & Sons, INC. New York... new school building. OBJECTIVES The purpose of this study is to develop a simplified simulation tool for K-5 high performance schools in hot and humid climates. The tool will be developed using the DOE-2.1e building energy simulation program...

Im, P.; Haberl, J. S.

255

Building America Best Practices Series Volume 16: 40% Whole-House Energy Savings in the Mixed-Humid Climate  

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

This guide book is a resource to help builders design and construct highly energy-efficient homes, while addressing building durability, indoor air quality, and occupant health, safety, and comfort. With the measures described in this guide, builders in the mixed-humid climate can build homes that achieve whole house energy savings of 40% over the Building America benchmark (the 1993 Model Energy Code) with no added overall costs for consumers.

256

Numerical simulation and experiment investigating the performance of a capacitance sensor measuring the humidity of wet steam  

Science Journals Connector (OSTI)

The humidity of steam is an important parameter, but its exact measurement is difficult. The use of capacitance is a novel measurement method. On the basis of the theory of dielectric polarization and hydrodynamics and applying FLUENT UDF language, the coupling of the steam flow field and electric field within the capacitance sensor are investigated through numerical simulation. The standard k–e model, scalable wall function and SIMPLE (Semi-Implicit Method for Pressure Linked Equations) are used in the research. Additionally, steam humidity is measured according to capacitance in an experiment. The results show that the water molecule is polarized; polarized charge appears near the wall of the flow field; the radial velocity depends on whether there is an electric field within the capacitance sensor, with the dependence being greatest near the outermost board; and the electric field intensity near the electrode board is less when there is no flow field. The numerical simulation agrees with the results of the experiment. The capacitance does not depend on a change in steam flow, and the capacitance of the sensor increases linearly with humidity.

Du Lipeng; Tian Ruifeng; Zhang Pengfei; Sun Zhongning

2011-01-01T23:59:59.000Z

257

Field Performance of A Compacted Clay Landfill Final cover At A Humid Site  

SciTech Connect

A study was conducted in southern Georgia, USA to evaluate how the hydraulic properties of the compacted clay barrier layer in a landfill final cover changed over a 4-yr service life. The cover was part of a test section constructed in a large drainage lysimeter that allowed CE Database subject headings: landfill, hydrogeology, compacted soils, lysimeters, desiccation continuous monitoring of the water balance. Patterns in the drainage (i.e., flow from the bottom of the cover) record suggest that preferential flow paths developed in the clay barrier soon after construction, apparently in response to desiccation cracking. After four years, the clay barrier was excavated and examined for changes in soil structure and hydraulic conductivity. Tests were conducted in situ with a sealed double-ring infiltrometer and two-stage borehole permeameters and in the laboratory on hand-carved blocks taken during construction and after four years of service. The in situ and laboratory tests indicated that the hydraulic conductivity increased approximately three orders of magnitude (from ? 10-7 to ? 10-4 cm s-1) during the service life. A dye tracer test and soil structure analysis showed that extensive cracking and root development occurred throughout the entire depth of the barrier layer. Laboratory tests on undisturbed specimens of the clay barrier indicated that the hydraulic conductivity of damaged clay barriers can be under-estimated significantly if small specimens (e.g., tube samples) are used for hydraulic conductivity assessment. The findings also indicate that clay barriers must be protected from desiccation and root intrusion if they are expected to function as intended, even at sites in warm, humid locations.

Albright, William H.; Benson, Craig H.; Gee, Glendon W.; Abichou, Tarek; Mcdonald, Eric V.; Tyler, Scott W.; Rock, Steven

2006-11-01T23:59:59.000Z

258

Formaldehyde emissions from ventilation filters under different relative  

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

Formaldehyde emissions from ventilation filters under different relative Formaldehyde emissions from ventilation filters under different relative humidity conditions Title Formaldehyde emissions from ventilation filters under different relative humidity conditions Publication Type Journal Article Refereed Designation Refereed Year of Publication 2013 Authors Sidheswaran, Meera A., Wenhao Chen, Agatha Chang, Robert Miller, Sebastian Cohn, Douglas P. Sullivan, William J. Fisk, Kazukiyo Kumagai, and Hugo Destaillats Journal Environmental Science and Technology Date Published 04/18/2013 Abstract A method combining life cycle assessment (LCA) and real options analyses is developed to predict project environmental and financial performance over time, under market uncertainties and decision-making flexibility. The method is applied to examine alternative uses for oil sands coke, a carbonaceous byproduct of processing the unconventional petroleum found in northern Alberta, Canada. Under uncertainties in natural gas price and the imposition of a carbon price, our method identifies that selling the coke to China for electricity generation by integrated gasification combined cycle is

259

LH responses to single doses of exogenous GnRH by social Mashona mole–rats:a continuum of socially induced infertility in the family Bathyergidae  

Science Journals Connector (OSTI)

...presented s.e. (Siegel 1956). (d) Behavioural experiments Reproductive...10 5 0 0 20 RF saline GnRH 0 20 NRF 0 20 RF 0 20 NRF * * plasma LH...Zimbabwe. REFERENCES Abbott, D. H. 1987 Behaviourally mediated...Zool. 213, 455 470. Abbott, D. H., Hodges, J. K. & George...

1997-01-01T23:59:59.000Z

260

Q. J. R. Meteorol. Soc. (2005), 131, pp. 353375 doi: 10.1256/qj.04.63 Summer mistral at the exit of the Rh^one valley  

E-Print Network (OSTI)

the absence of convection but also of strong winds prevent PBL development over the sea in the wakes to a severe wind that develops along the Rh^one valley in southern France. This summer mistral event was documented in the framework of the ESCOMPTE field experiment. The dynamical processes driving the circulation

Protat, Alain

Note: This page contains sample records for the topic "relative humidity rh" 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

Infrared study of the behavior of CO, NO, and CO + NO over Rh/Al/sub 2/O/sub 3/ catalysts  

SciTech Connect

Infrared spectroscopy was used to study the interaction of carbon monoxide and nitric oxide on a 0.475% Rh/Al/sub 2/O/sub 3/ catalyst. Both CO and NO readily adsorb on a prereduced catalyst surface. NO is not observed spectroscopically on preoxidized catalysts, yet isocyanate is produced during subsequent displacement by CO. The adsorption of CO on a preoxidized catalyst parallels the reduction of the catalyst. At temperatures in excess of 250/sup 0/C and mixed feeds with CO/NO greater than or equal to 1, a large buildup of isocyanate is observed on the support. At temperatures greater than 300/sup 0/C an infrared band attributed to adsorbed cyanide ion is observed near 2150 cm/sup -1/. Experiments involving displacement of NO by CO, displacement of CO by NO, and coadsorption of CO + NO show that contiguous rhodium surfaces are necessary for isocyanate production. Though the rhodium gem-dicarbonyl species, Rh(CO)/sub 2/, was observed, there was no experimental evidence demonstrating the presence of Rh(NO)/sub 2/ or Rh(NO)(CO) complexes.

Dictor, R.

1988-01-01T23:59:59.000Z

262

The production of higher alcohols from syngas using potassium promoted Co/Mo/A12O3 and Rh/Co/Mo/A12O3  

Science Journals Connector (OSTI)

The optimized compositions K(4.9)/Co(2.7)/Mo(6.4)/A1203(gamma) and K(1.2)/ Rh(1.1)/Co(0.6)/Mo(5.7)/A1203(gamma) are both productive catalysts for higher alcohols. The incorporation of rhodium into the K/Co/Mo/A12

D. A. Storm

1995-01-01T23:59:59.000Z

263

X-ray absorption studies of the local structure and f-level occupancy in CeIr(1-x)Rh(x)In(5)  

SciTech Connect

The CeIr{sub 1-x}Rh{sub x}In{sub 5} series exhibits a range of interesting phenomena, including heavy-fermion superconductivity, non-Fermi liquid behavior, and concomitant antiferromagnetism (AF) and superconductivity (SC). In the low-Rh concentration range (0.1 {ge} x {ge} 0.5), specific heat measurements show a broad anomaly, suggestive of gross phase separation. We have performed x-ray absorption experiments at the Ce L{sub III}, Ir L{sub III}, and Rh K-edges as a function of Rh concentration and temperature. X-ray absorption near-edge structure (XANES) measurements indicate that cerium is close to trivalent in this system, with no measurable change with temperature from 20-300 K, consistent with a heavy-fermion material. Extended x-ray absorption fine structure (EXAFS) measurements as a function of temperature from all measured edges indicate the local crystal structure of all samples is well ordered, with no gross phase separation observed, even for samples with x = 0.125 and x = 0.25. These results therefore suggest that the anomalous specific heat behavior in the 0.1 {ge} x {ge} 0.5 range have some other explanation, and some possibilities are discussed.

Daniel, M.; Han, S.-W.; Booth, C.H.; Cornelius, A.L.; Pagliuso, P.G.; Sarrao, J.L.; Thompson, J.D.

2004-04-15T23:59:59.000Z

264

Building America Technology Solutions for New and Existing Homes: Impact of Infiltration and Ventilation on Measured Space Conditioning Energy and Moisture Levels in the Hot-Humid Climate  

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

This project investigates the impact of air infiltration and ventilation on space cooling and moisture in residential buildings; research was conducted in two identical laboratory homes in the hot-humid climate over the cooling season.

265

Building America Case Study: Evaluation of the Performance of Houses With and Without Supplemental Dehumidification in a Hot-Humid Climate, New Orleans, Louisiana (Fact Sheet)  

SciTech Connect

This report, Evaluation of the Performance of Houses with and without Supplemental Dehumidification in a Hot-Humid Climate, describes a research study that that was conducted by the Building Science Corporation (BSC) Building America Research Team. BSC seeks to research and report on the field monitoring of the performance of in-situ supplemental dehumidification systems in low energy, high performance, homes in a Hot-Humid climate. The purpose of this research project was to observe and compare the humidity control performance of new, single family, low energy, and high performance, homes. Specifically, the study sought to compare the interior conditions and mechanical systems operation between two distinct groups of houses, homes with a supplemental dehumidifier installed in addition to HVAC system, and homes without any supplemental dehumidification. The subjects of the study were ten single-family new construction homes in New Orleans, LA. Data logging equipment was installed at each home in 2012. Interior conditions and various end-use loads were monitored for one year. In terms of averages, the homes with dehumidifiers are limiting elevated levels of humidity in the living space. However, there was significant variation in humidity control between individual houses. An analysis of the equipment operation did not show a clear correlation between energy use and humidity levels. In general, no single explanatory variable appears to provide a consistent understanding of the humidity control in each house. Indoor humidity is likely due to all of the factors we have examined, and the specifics of how they are used by each occupant.

Not Available

2014-11-01T23:59:59.000Z

266

Development of the remote-handled transuranic waste radioassay data quality objectives. An evaluation of RH-TRU waste inventories, characteristics, radioassay methods and capabilities  

SciTech Connect

The Waste Isolation Pilot Plant will accept remote-handled transuranic waste as early as October of 2001. Several tasks must be accomplished to meet this schedule, one of which is the development of Data Quality Objectives (DQOs) and corresponding Quality Assurance Objectives (QAOs) for the assay of radioisotopes in RH-TRU waste. Oak Ridge National Laboratory (ORNL) was assigned the task of providing to the DOE QAO, information necessary to aide in the development of DQOs for the radioassay of RH-TRU waste. Consistent with the DQO process, information needed and presented in this report includes: identification of RH-TRU generator site radionuclide data that may have potential significance to the performance of the WIPP repository or transportation requirements; evaluation of existing methods to measure the identified isotopic and quantitative radionuclide data; evaluation of existing data as a function of site waste streams using documented site information on fuel burnup, radioisotope processing and reprocessing, special research and development activities, measurement collection efforts, and acceptable knowledge; and the current status of technologies and capabilities at site facilities for the identification and assay of radionuclides in RH-TRU waste streams. This report is intended to provide guidance in developing the RH-TRU waste radioassay DQOs, first by establishing a baseline from which to work, second, by identifying needs to fill in the gaps between what is known and achievable today and that which will be required before DQOs can be formulated, and third, by recommending measures that should be taken to assure that the DQOs in fact balance risk and cost with an achievable degree of certainty.

Meeks, A.M.; Chapman, J.A.

1997-09-01T23:59:59.000Z

267

Corrosion product identification and relative rates of corrosion of candidate metals in an irradiated air-steam environment  

SciTech Connect

Previously reported work by others indicates that dicopper trihydroxide nitrate, Cu{sub 2}NO{sub 3}(OH){sub 3}, forms on copper and copper alloys subjected to irradiated moist air near room temperature. We have performed experiments over a range of temperature and humidity, and have found that this species is formed at temperatures up to at least 150{degree}C if low to intermediate relative humidities are present. At 150{degree}C and 100% relative humidity, only Cu{sub 2}O and CuO were observed. The relative general corrosion rates of the copper materials tested in 1-month experiments at dose rates of 0.7 and 2.0 kGy/h were Cu > 70/30 Cu--Ni > Al-bronze. High-nickel alloy 825 showed no observable corrosion. 29 refs., 4 tabs.

Reed, D.T.; Swayambunathan, V.; Tani, B.S. (Argonne National Lab., IL (USA)); Van Konynenburg, R.A. (Lawrence Livermore National Lab., CA (USA))

1989-11-03T23:59:59.000Z

268

The adsorption of water on Cu2O and Al2O3 thin films  

SciTech Connect

The initial stages of water condensation, approximately 6 molecular layers, on two oxide surfaces, Cu{sub 2}O and Al{sub 2}O{sub 3}, have been investigated by using ambient pressure X-ray photoelectron spectroscopy at relative humidity values (RH) from 0 to >90%. Water adsorbs first dissociatively on oxygen vacancies producing adsorbed hydroxyl groups in a stoichiometric reaction: O{sub lattic} + vacancies + H{sub 2}O = 2OH. The reaction is completed at {approx}1% RH and is followed by adsorption of molecular water. The thickness of the water film grows with increasing RH. The first monolayer is completed at {approx}15% RH on both oxides and is followed by a second layer at 35-40% RH. At 90% RH, about 6 layers of H{sub 2}O film have been formed on Al{sub 2}O{sub 3}.

Deng, Xingyi; Herranz, Tirma; Weis, Christoph; Bluhm, Hendrik; Salmeron, Miquel

2008-06-27T23:59:59.000Z

269

Fast Response and High Sensitivity ZnO/glass Surface Acoustic Wave Humidity Sensors Using Graphene Oxide Sensing Layer  

E-Print Network (OSTI)

micro-syringe. After the deposition of GO, the devices were kept at room temperature to allow slow evaporation of water. Figure 1a,b,c show the schematics of the SAW sensors used for the measurements, while Figure 1d,e,f are the SEM images of the SAW... the humidity sensitivity of the SAW devices38. Figure 2c shows FT-IR spectrum obtained from our GO samples. A strong and broad valley at 3413 cm21 is attributed to the -OH groups in stretching vibrations. This peak implies the good hydro- philicity of the GO...

Xuan, Weipeng; He, Mei; Meng, Nan; He, Xingli; Wang, Wenbo; Chen, Jinkai; Shi, Tianjin; Hasan, Tawfique; Xu, Zhen; Xu, Yang; Luo, J. K.

2014-11-26T23:59:59.000Z

270

Apparatus for adjusting and maintaining the humidity of gas at a constant value within a closed system  

DOE Patents (OSTI)

The humidity of a gas within a closed system is maintained at constant level by providing a saturated salt solution within a lower chamber in communication with an upper chamber conjointly defined by upper and lower container sections in sealing contact with each other to establish a closed container. A partition wall separates the salt solution from the test region in the upper chamber. A tube extending through the partition plate allows humidified gas to pass from the lower to the upper chamber. A glass wool plug or membranous material within the tube prevents migration of salt into the test region.

Abernathy, B.R.; Walters, R.R.

1985-08-05T23:59:59.000Z

271

Phloem Ultrastructure and Pressure Flow: Sieve-Element-Occlusion-Related Agglomerations Do Not Affect Translocation  

Science Journals Connector (OSTI)

...trichocarpa) was grown in pots in a greenhouse at 23C, with 60 to 70% relative humidity...additional lamp light [model PL 90; PL Lighting Systems]) with a minimum irradiance...Micro-ROCs (Advanced Science Tools) in the greenhouse at a 14-h photoperiod, 300 to 400...

Daniel R. Froelich; Daniel L. Mullendore; Kåre H. Jensen; Tim J. Ross-Elliott; James A. Anstead; Gary A. Thompson; Hélène C. Pélissier; Michael Knoblauch

2011-12-23T23:59:59.000Z

272

Water adsorption, solvation and deliquescence of alkali halide thin films on SiO2 studied by ambient pressure X-ray photoelectron spectroscopy  

SciTech Connect

The adsorption of water on KBr thin films evaporated onto SiO2 was investigated as a function of relative humidity (RH) by ambient pressure X-ray photoelectron spectroscopy. At 30percent RH adsorbed water reaches a coverage of approximately one monolayer. As the humidity continues to increase, the coverage of water remains constant or increases very slowly until 60percent RH, followed by a rapid increase up to 100percent RH. At low RH a significant number of the Br atoms are lost due to irradiation damage. With increasing humidity solvation increases ion mobility and gives rise to a partial recovery of the Br/K ratio. Above 60percent RH the increase of the Br/K ratio accelerates. Above the deliquescence point (85percent RH), the thickness of the water layer continues to increase and reaches more than three layers near saturation. The enhancement of the Br/K ratio at this stage is roughly a factor 2.3 on a 0.5 nm KBr film, indicating a strong preferential segregation of Br ions to the surface of the thin saline solution on SiO2.

Arima, Kenta; Jiang, Peng; Deng, Xingyi; Bluhm, Henrik; Salmeron, Miquel

2010-03-31T23:59:59.000Z

273

Identification of the building parameters that influence heating and cooling energy loads for apartment buildings in hot-humid climates  

Science Journals Connector (OSTI)

Identifying the building parameters that significantly impact energy performance is an important step for enabling the reduction of the heating and cooling energy loads of apartment buildings in the design stage. Implementing passive design techniques for these buildings is not a simple task in most dense cities; their energy performance usually depends on uncertainties in the local climate and many building parameters, such as window size, zone height, and features of materials. For this paper, a sensitivity analysis was performed to determine the most significant parameters for buildings in hot-humid climates by considering the design of an existing apartment building in Izmir, Turkey. The Monte Carlo method is selected for sensitivity and uncertainty analyses with the Latin hypercube sampling (LHC) technique. The results show that the sensitivity of parameters in apartment buildings varies based on the purpose of the energy loads and locations in the building, such as the ground, intermediate, and top floors. In addition, the total window area, the heat transfer coefficient (U) and the solar heat gain coefficient (SHGC) of the glazing based on the orientation have the most considerable influence on the energy performance of apartment buildings in hot-humid climates.

Yusuf Y?ld?z; Zeynep Durmu? Arsan

2011-01-01T23:59:59.000Z

274

A Reactive Oxide Overlayer on Rh Nanoparticles during CO Oxidation and Its Size Dependence Studied by in Situ Ambient Pressure XPS  

SciTech Connect

CO oxidation is one of the most studied heterogeneous reactions, being scientifically and industrially important, particularly for removal of CO from exhaust streams and preferential oxidation for hydrogen purification in fuel cell applications. The precious metals Ru, Rh, Pd, Pt, and Au are most commonly used for this reaction because of their high activity and stability. Despite the wealth of experimental and theoretical data, it remains unclear what is the active surface for CO oxidation under catalytic conditions for these metals. In this communication, we utilize in situ synchrotron ambient pressure X-ray photoelectron spectroscopy (APXPS) to monitor the oxidation state at the surface of Rh nanoparticles during CO oxidation and demonstrate that the active catalyst is a surface oxide, the formation of which is dependent on particle size. The amount of oxide formed and the reaction rate both increase with decreasing particle size.

Grass, Michael E.; Zhang, Yawen; Butcher, Derek R.; Park, Jeong Y.; Li, Yimin; Bluhm, Hendrik; Bratlie, Kaitlin M.; Zhang, Tianfu; Somorjai, Gabor A.

2008-09-15T23:59:59.000Z

275

Influence of Sulfur on the Carbon Deposition in Liquid Hydrocarbon Steam Reforming over CeO2-Al2O3 supported Ni and Rh Catalysts  

SciTech Connect

This study was performed to elucidate the influence of sulfur on the carbon deposition in steam reforming of liquid hydrocarbons over CeO{sub 2}-Al{sub 2}O{sub 3} supported Ni and Rh catalysts at 800 C. The characteristics of the carbon deposits on the used catalysts after the reactions without and with sulfur were investigated by temperature-programmed oxidation (TPO), transmission electron microscopy (TEM), scanning transmission X-ray microscopy (STXM), temperature-programmed hydrogenation (TPH), X-ray absorption near edge structure (XANES), and scanning electron microscopy (SEM). Though abundant carbon deposits can accumulate on the pure CeO{sub 2}-Al{sub 2}O{sub 3} support due to fuel thermal cracking, the addition of Ni or Rh metal greatly reduced the carbon deposition in the sulfur-free reaction. The presence of sulfur increased the carbon deposition on both catalysts, which has a much more significant impact for the Ni catalyst. Carbon XANES study on the used catalysts revealed that graphitic carbon was dominant in the presence of sulfur, while oxidized carbon species (quinone-like carbon, carboxyl and carbonate) prevailed without sulfur. Meanwhile, the formation of carboxyl and carbonate more dramatically dropped on the Ni catalyst than that on the Rh catalyst. Our results strongly suggest that (I) the presence of sulfur can suppress carbon gasification and promote the formation of graphitic carbon on reforming catalysts due mainly to its poisoning effect on metals, and (II) Rh catalyst possesses stronger capability to maintain carbon gasification activity than Ni catalyst in the presence of sulfur.

C Xie; Y Chen; Y Li; X Wang; C Song

2011-12-31T23:59:59.000Z

276

Dendrimer Templated Synthesis of One Nanometer Rh and Pt Particles Supported on Mesoporous Silica: Catalytic Activity for Ethylene and Pyrrole Hydrogenation.  

SciTech Connect

Monodisperse rhodium (Rh) and platinum (Pt) nanoparticles as small as {approx}1 nm were synthesized within a fourth generation polyaminoamide (PAMAM) dendrimer, a hyperbranched polymer, in aqueous solution and immobilized by depositing onto a high-surface-area SBA-15 mesoporous support. X-ray photoelectron spectroscopy indicated that the as-synthesized Rh and Pt nanoparticles were mostly oxidized. Catalytic activity of the SBA-15 supported Rh and Pt nanoparticles was studied with ethylene hydrogenation at 273 and 293 K in 10 torr of ethylene and 100 torr of H{sub 2} after reduction (76 torr of H{sub 2} mixed with 690 torr of He) at different temperatures. Catalysts were active without removing the dendrimer capping but reached their highest activity after hydrogen reduction at a moderate temperature (423 K). When treated at a higher temperature (473, 573, and 673 K) in hydrogen, catalytic activity decreased. By using the same treatment that led to maximum ethylene hydrogenation activity, catalytic activity was also evaluated for pyrrole hydrogenation.

Huang, Wenyu; Kuhn, John N.; Tsung, Chia-Kuang; Zhang, Yawen; Habas, Susan E.; Yang, Peidong; Somorjai, Gabor A.

2008-05-09T23:59:59.000Z

277

Influence of a humidor on the aerodynamics of baseballs  

E-Print Network (OSTI)

We investigate whether storing baseballs in a controlled humidity environment significantly affects their aerodynamic properties. To do this, we measure the change in diameter and mass of baseballs as a function of relative humidity (RH) in which the balls are stored. We then model trajectories for pitched and batted baseballs to assess the difference between those stored at 30% RH versus 50% RH. The results show that a drier baseball may be expected to curve slightly more than a humidified one for a given pitch velocity. We also find that the aerodynamics alone would add ~2 feet to the distance a moister ball is hit. However, this is compensated by a ~6 foot reduction in batted distance due to the well known change in coefficient of restitution of the ball. We discuss consequences of these results for baseball played at Coors Field in Denver, where baseballs have been stored in a humidor at 50% RH since 2002.

Edmund Meyer; John Bohn

2008-02-29T23:59:59.000Z

278

Building America Technology Solutions for New and Existing Homes: Evaluation of the Performance of Houses With and Without Supplemental Dehumidification in a Hot-Humid Climate, New Orleans, Louisiana  

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

This project by Building Science Corporation evaluated the performance of new homes in a hot-humid climate, with and without supplemental dehumidification systems.

279

Surface and Tower Meteorological Instrumentation at Atqasuk (METTWR2H) Handbook  

SciTech Connect

The Atqasuk meteorology station (AMET) uses mainly conventional in situ sensors to measure wind speed, wind direction, air temperature, dew point, and humidity mounted on a 10-m tower. It also obtains barometric pressure, visibility and precipitation data from sensors at or near the base of the tower. In addition, a chilled mirror hygrometer (CMH) is located at 1 m for comparison purposes. Temperature and relative humidity (RH) probes are mounted at 2 m and 5 m on the tower.

Ritsche, MT

2006-01-01T23:59:59.000Z

280

Moisture and Ventilation Solutions in Hot, Humid Climates: Florida Manufactured Housing- Building America Top Innovation  

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

This Building America Innovations profile describes work by Building America researchers who visited 24 manufactured home factories between 1996 and 2003 to investigate moisture problems while improving energy efficiency and identified insufficient air sealing and poor HVAC installation as the biggest culprits. One manufacturer reported zero moisture-related issues in 35,000 homes built after implementing Building America recommendations.

Note: This page contains sample records for the topic "relative humidity rh" 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

Energy conservation in high-rise buildings: Changes in air conditioning load induced by vertical temperature and humidity profile in Delhi  

Science Journals Connector (OSTI)

Temperature and humidity profiles in the upper atmosphere are different from those observed by ground level meteorological stations and used to design HVAC systems for high-rise buildings. There exist correlations among solar energy, atmospheric turbidity and pollutants in urban areas, affecting the temperature and humidity profiles with variation in height. In the present study, a theoretical model is developed considering these parameters, and the HVAC load is calculated. The results are compared with the HVAC load calculated from data obtained from the meteorological station, and the comparison showed that the results differ significantly (20%) for a hypothetical 200 m high office building.

S. Sinha; Sanjay Kumar; N. Kumar

1998-01-01T23:59:59.000Z

282

 

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

Relative Humidity, Temperature, Amount of Water Relative Humidity, Temperature, Amount of Water Name: TJ Status: student Grade: other9-12 Country: United Kingdom Date: Winter 2012 Question: I want to know how relative humidity at low temperatures compares with the same relative humidity at high temperatures (but I cannot find a chart or table on this) - I gather that colder air holds less moisture, meaning that air at 95%RH at 5degreesC holds less moisture than air at 95%RH at 30degreesC, but I want to know how much drier the cold air is - is there such a thing as absolute humidity instead of just relative humidity? Replies: TJ, Why do people sometimes sweat when it is hot outside, but rarely do so when it is cool outside? When the air is really cold, why is the snow so light (low density)? Why does one's car windscreen fog up? Why do we commonly find dew on the ground in the morning? All of these questions are related to the concept of relative humidity. br>

283

Optimization Control Strategy for an Air Handling Unit with Dedicated Rotary Desiccant Dehumidification Wheel in Hot and Humid Climate  

E-Print Network (OSTI)

.7 53.5 Error 0.94% 0.42% 1.03% 0.47% DESCRIPTION?OF?DEDICATED?HUMIDITY? CONTROL?UNITS?(HCU) Run#?1?DESIGN R A W B C D E Summer SCFM 0 8750 8750 8750 8750 8750 8278 DB?(?F) 83 60 50 69 70 83 WB?(?F) 79.3 59.5 50 53.2 53.7 79.3 GR/LB 147 76 54 35... 35 147 Diagram?of?the?AHUs?system HCU OA DB????70??F Dew. 39??F CD:?55?F CD:?55?F CD:?55?F SIMULATION?MODEL?PARAMETERS Parameters Value Unit The?lighting?load? 0.93 W/ft2 The?internal?electrical?equipment?load? 1.4 W/ft2 Zone...

Watt, J.

2013-01-01T23:59:59.000Z

284

Investigation of charge compensation in indium-doped tin dioxide by hydrogen insertion via annealing under humid conditions  

SciTech Connect

The behavior of hydrogen (H) as an impurity in indium (In)-doped tin dioxide (SnO{sub 2}) was investigated by mass spectrometry analyses, with the aim of understanding the charge compensation mechanism in SnO{sub 2}. The H-concentration of the In-doped SnO{sub 2} films increased to (1–2)?×?10{sup 19}?cm{sup ?3} by annealing in a humid atmosphere (WET annealing). The electron concentration in the films also increased after WET annealing but was two orders of magnitude less than their H-concentrations. A self-compensation mechanism, based on the assumption that H sits at substitutional sites, is proposed to explain the mismatch between the electron- and H-concentrations.

Watanabe, Ken, E-mail: Watanabe.Ken@nims.go.jp [National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan); International Center for Young Scientists (ICYS-MANA), NIMS, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan); Ohsawa, Takeo; Ross, Emily M., E-mail: emross@hmc.edu; Adachi, Yutaka; Haneda, Hajime [National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan); Sakaguchi, Isao; Takahashi, Ryosuke [National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan); Department of Applied Science for Electronics and Materials, Kyushu University, 6-1 Kasuga-kouen Kasuga, Fukuoka 816-8580 (Japan); Bierwagen, Oliver, E-mail: bierwagen@pdi-berlin.de [Paul-Drude-Institute, Hausvogteiplatz 5-7, 10117 Berlin (Germany); Materials Department, University of California, Santa Barbara, California 93106 (United States); White, Mark E.; Tsai, Min-Ying; Speck, James S., E-mail: speck@ucsb.edu [Materials Department, University of California, Santa Barbara, California 93106 (United States); Ohashi, Naoki, E-mail: Ohashi.Naoki@nims.go.jp [National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan); Department of Applied Science for Electronics and Materials, Kyushu University, 6-1 Kasuga-kouen Kasuga, Fukuoka 816-8580 (Japan); Materials Research Center for Element Strategy (MCES), Mailbox S2-13, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-0026 (Japan)

2014-03-31T23:59:59.000Z

285

Performance of a solar-ambient hybrid source heat pump drier for copra drying under hot-humid weather conditions  

Science Journals Connector (OSTI)

Abstract This paper communicates the energy performance of a solar-ambient hybrid source heat pump drier (SAHSHPD) for copra drying under hot-humid weather conditions. The standard energy performance parameters such as coefficient of performance (COP), condenser heat capacity (Qc) and specific moisture extraction rate (SMER) were evaluated. The results showed that COP of a SAHSHPD was varied between 2.31 and 2.77 with an average value of 2.54. The condenser heating capacity was varied between 2900 W and 3750 W with an average value of 3290 W. The SMER was calculated as 0.79 kg/kWh. The moisture content (on wet basis) of the copra was reduced from about 52% to about 9.2% and 9.8% in 40 h for trays at bottom and top, respectively. The quality of copra obtained in a SAHSHPD was found to be higher compared to other drying methods.

M. Mohanraj

2014-01-01T23:59:59.000Z

286

Surface reactivity and oxygen migration in amorphous indium-gallium-zinc oxide films annealed in humid atmosphere  

SciTech Connect

An isotope tracer study, i.e., {sup 18}O/{sup 16}O exchange using {sup 18}O{sub 2} and H{sub 2}{sup 18}O, was performed to determine how post-deposition annealing (PDA) affected surface reactivity and oxygen diffusivity of amorphous indium–gallium–zinc oxide (a-IGZO) films. The oxygen tracer diffusivity was very high in the bulk even at low temperatures, e.g., 200?°C, regardless of PDA and exchange conditions. In contrast, the isotope exchange rate, dominated by surface reactivity, was much lower for {sup 18}O{sub 2} than for H{sub 2}{sup 18}O. PDA in a humid atmosphere at 400?°C further suppressed the reactivity of O{sub 2} at the a-IGZO film surface, which is attributable to –OH-terminated surface formation.

Watanabe, Ken, E-mail: Watanabe.Ken@nims.go.jp [International Center for Young Scientists (ICYS-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba 305-0044 (Japan)] [International Center for Young Scientists (ICYS-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba 305-0044 (Japan); Lee, Dong-Hee [Optical and Electronic Materials Unit, NIMS, 1-1 Namiki, Tsukuba 305-0044 (Japan) [Optical and Electronic Materials Unit, NIMS, 1-1 Namiki, Tsukuba 305-0044 (Japan); Materials and Structures Laboratory (MSL), Tokyo Institute of Technology, Mailbox R3-4, 4259 Nagatsuta, Midori-ku, Yokohama 226-0026 (Japan); Sakaguchi, Isao; Haneda, Hajime [Optical and Electronic Materials Unit, NIMS, 1-1 Namiki, Tsukuba 305-0044 (Japan)] [Optical and Electronic Materials Unit, NIMS, 1-1 Namiki, Tsukuba 305-0044 (Japan); Nomura, Kenji [Frontier Research Center, Tokyo Institute of Technology, Mailbox S2-13, 4259 Nagatsuta, Midori-ku, Yokohama 226-0026 (Japan)] [Frontier Research Center, Tokyo Institute of Technology, Mailbox S2-13, 4259 Nagatsuta, Midori-ku, Yokohama 226-0026 (Japan); Kamiya, Toshio [Materials and Structures Laboratory (MSL), Tokyo Institute of Technology, Mailbox R3-4, 4259 Nagatsuta, Midori-ku, Yokohama 226-0026 (Japan) [Materials and Structures Laboratory (MSL), Tokyo Institute of Technology, Mailbox R3-4, 4259 Nagatsuta, Midori-ku, Yokohama 226-0026 (Japan); Materials Research Center for Element Strategy (MCES), Mailbox S2-13, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-0026 (Japan); Hosono, Hideo [Materials and Structures Laboratory (MSL), Tokyo Institute of Technology, Mailbox R3-4, 4259 Nagatsuta, Midori-ku, Yokohama 226-0026 (Japan) [Materials and Structures Laboratory (MSL), Tokyo Institute of Technology, Mailbox R3-4, 4259 Nagatsuta, Midori-ku, Yokohama 226-0026 (Japan); Frontier Research Center, Tokyo Institute of Technology, Mailbox S2-13, 4259 Nagatsuta, Midori-ku, Yokohama 226-0026 (Japan); Materials Research Center for Element Strategy (MCES), Mailbox S2-13, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-0026 (Japan); Ohashi, Naoki, E-mail: Ohashi.Naoki@nims.go.jp [Optical and Electronic Materials Unit, NIMS, 1-1 Namiki, Tsukuba 305-0044 (Japan) [Optical and Electronic Materials Unit, NIMS, 1-1 Namiki, Tsukuba 305-0044 (Japan); Materials Research Center for Element Strategy (MCES), Mailbox S2-13, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-0026 (Japan)

2013-11-11T23:59:59.000Z

287

Victoria & Albert Museum- Medieval & Renaissance Galleries: A Passive Approach to Humidity Control  

E-Print Network (OSTI)

advantage of original chimneys and trenches. Addressing sustainability in the project required the balancing and optimisation of a range of issues that had the potential to create conflicts; artefact conservation and energy use, improving accessibility...). Space temperatures dropped as low as 13?C but the temperatures during occupied hours are only below 18?C for a relatively small proportion of the time, around 7% of the occupied hours or 3 and a half weeks. This is because solar gain, occupancy load...

Lerpiniere, A.; Bingham, M.; Walker, S.

2010-01-01T23:59:59.000Z

288

On AgRhO{sub 2}, and the new quaternary delafossites AgLi{sub 1/3}M{sub 2/3}O{sub 2}, syntheses and analyses of real structures  

SciTech Connect

Two new quaternary delafossite type oxides with the general formula Ag(Li{sub 1/3}M{sub 2/3})O{sub 2}, M=Rh, Ir, have been synthesized, and their structures characterized. Based on X-ray and electron diffraction analyses the structural similarity with AgRhO{sub 2} delafossite, has been evidenced. The real structures of the quaternary delafossites have been revealed, which has allowed to fully explain the diffuse scattering as observed in X-ray powder diffraction. AgRhO{sub 2} is thermally stable up to 1173 K, the behavior of the two quaternary compounds AgLi{sub 1/3}Rh{sub 2/3}O{sub 2} and AgLi{sub 1/3}Ir{sub 2/3}O{sub 2} is comparable, and they decompose above 950 and 800 K, respectively. AgRhO{sub 2} shows temperature independent paramagnetism, while for the other two an effective magnetic moment of 1.77{mu}{sub B} for Ir, and 1.70{mu}{sub B} for Rh were determined, applying the Curie-Weiss law. All compounds are semiconducting with activation energies of 4.97 kJ mol{sup -1} (AgLi{sub 1/3}Rh{sub 2/3}O{sub 2}), 11.42 kJ mol{sup -1} (AgLi{sub 1/3}Ir{sub 2/3}O{sub 2}) and 17.58 kJ mol{sup -1} (AgRhO{sub 2}). -- graphical abstract: Two new quaternary delafossite type oxides with the general formula Ag(Li{sub 1/3}M{sub 2/3})O{sub 2}, M=Rh, Ir, have been synthesized, and their structures characterized. The real structures of the quaternary delafossites have been revealed, which has allowed to fully explain the diffuse scattering as observed in X-ray powder diffraction. Display Omitted Highlights: {yields}Analysis of the real structures of the Ag(Li{sub 1/3}Rh{sub 2/3})O{sub 2} and Ag(Li{sub 1/3}Ir{sub 2/3})O{sub 2}. {yields} Diffuse scattering has been rationalized by severe disorder in the stacking sequences. {yields} The oxygen atom layer stacking sequence needs to change.

Todorova, V. [Max Planck Institute for Solid State Research, Heisenbergstr. 1, D-70569 Stuttgart (Germany); Leineweber, A. [Max-Planck-Institute for Metals Research, Heisenbergstr. 3, D-70569 Stuttgart (Germany); Kienle, L. [Institute of Materials Research, Kaiserstr. 2, D-24143 Kiel (Germany); Duppel, V. [Max Planck Institute for Solid State Research, Heisenbergstr. 1, D-70569 Stuttgart (Germany); Jansen, M., E-mail: M.Jansen@fkf.mpg.d [Max Planck Institute for Solid State Research, Heisenbergstr. 1, D-70569 Stuttgart (Germany)

2011-05-15T23:59:59.000Z

289

Microsoft Word - ORNL RH  

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

move this waste out of Oak Ridge and place it in a permanent repository," said Gerald Boyd, Manager of DOE's Oak Ridge Office. "We have kept our commitment to the State of...

290

ARM - Evaluation Product - Sonde-Adjust  

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

ProductsSonde-Adjust ProductsSonde-Adjust Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Evaluation Product : Sonde-Adjust Site(s) FKB GRW HFE NIM NSA PYE SGP TWP General Description The sonde-adjust VAP produces data that corrects documented biases in radiosonde humidity measurements. Unique fields contained within this datastream include smoothed original relative humidity, dry bias corrected relative humidity, and final corrected relative humidity. The smoothed RH field refines the relative humidity from integers - the resolution of the instrument - to fractions of a percent. This profile is then used to calculate the dry bias corrected field. The final correction fixes a time-lag problem and uses the dry-bias field as input into the algorithm.

291

Bay Ridge Gardens - Mixed-Humid Affordable Multifamily Housing Deep Energy Retrofit  

SciTech Connect

Under this project, Newport Partners (as part of the BA-PIRC research team) evaluated the installation, measured performance, and cost-effectiveness of efficiency upgrade measures for a tenant-in-place DER at the Bay Ridge multifamily (MF) development in Annapolis, Maryland. The design and construction phase of the Bay Ridge project was completed in August 2012. This report summarizes system commissioning, short-term test results, utility bill data analysis, and analysis of real-time data collected over a one-year period after the retrofit was complete. The Bay Ridge project is comprised of a 'base scope' retrofit which was estimated to achieve a 30%+ savings (relative to pre-retrofit) on 186 apartments, and a 'DER scope' which was estimated to achieve 50% savings (relative to pre-retrofit) on a 12-unit building. The base scope was applied to the entire apartment complex, except for one 12-unit building which underwent the DER scope. A wide range of efficiency measures was applied to pursue this savings target for the DER building, including improvements/replacements of mechanical equipment and distribution systems, appliances, lighting and lighting controls, the building envelope, hot water conservation measures, and resident education. The results of this research build upon the current body of knowledge of multifamily retrofits. Towards this end, the research team has collected and generated data on the selection of measures, their estimated performance, their measured performance, and risk factors and their impact on potential measures.

Lyons, J.; Moore, M.; Thompson, M.

2013-08-01T23:59:59.000Z

292

Electric field and humidity effects on adsorbed water behavior on BaTiO3 ferroelectric domains studied by scanning probe microscopy  

E-Print Network (OSTI)

Electric field and humidity effects on adsorbed water behavior on BaTiO3 ferroelectric domains 2014; published online 28 August 2014) Distribution of the adsorbed water on BaTiO3 ferroelectric, which adsorb on the material surface, cause delayed cracking and fracture of ferroelectric ceramics.15

Volinsky, Alex A.

293

Analysis of Energy, Environmental and Life Cycle Cost Reduction Potential of Ground Source Heat Pump (GSHP) in Hot and Humid Climate  

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

Project objectives: Gather and analyze independently the available technical, cost, financial incentive data on installed GSHP/HGSHP applications in residential, commercial and schools in hot and humid climate regions, and develop a calibrated baseline and performance period model of new construction and retrofitted buildings in conjunction with the energy simulation program.

294

These are practically rainless but persistently cool and humid because of foggy air drifting off the cold offshore current. The California Coast in summer  

E-Print Network (OSTI)

and humid because of foggy air drifting off the cold offshore current. The California Coast in summer is oxidized to red rust. The Welwichia plant is a strange conifer with two giant flat leaves. You can find a couple in the desert section of the Plant Science teaching greenhouse, which we visit on an upcoming

Richerson, Peter J.

295

Achieving Challenge Home in Affordable Housing in the Hot-Humid Climate  

SciTech Connect

The Building America Partnership for Improved Residential Construction (BA-PIRC), one of the Building America research team leads, has partnered with two builders as they work through the Challenge Home certification process in one test home each. The builder partners participating in this cost-shared research are Southeast Volusia County Habitat for Humanity near Daytona, Florida and Manatee County Habitat for Humanity near Tampa, Florida. Both are affiliates of Habitat for Humanity International, a non-profit affordable housing organization. This research serves to identify viable technical pathways to meeting the CH criteria for other builders in the region. A further objective of this research is to identify gaps and barriers in the marketplace related to product availability, labor force capability, code issues, cost effectiveness, and business case issues that hinder or prevent broader adoption on a production scale.

Beal, D.; McIlvaine, J.; Winter, B.; Allnutt, R.

2014-08-01T23:59:59.000Z

296

Improving chemical aqueous based intervention methods for microorganism elimination from fresh produce surfaces  

E-Print Network (OSTI)

as model systems on 6 different types of produce to determine the effect of produce surface characteristics on sanitizer effectiveness. Microbial attachment on produce surfaces was induced after 3 h of drying at 24°C and high relative humidity (RH...

Puerta-Gomez, Alex Frank

2006-04-12T23:59:59.000Z

297

The Usage of Screen-Level Parameters and Microwave Brightness Temperature for Soil Moisture Analysis  

Science Journals Connector (OSTI)

This study focuses on testing two different soil moisture analysis systems based on screen-level parameters (2-m temperature T2m, 2-m relative humidity RH2m) and 1.4-GHz passive microwave brightness temperatures TB. First, a simplified extended ...

G. Seuffert; H. Wilker; P. Viterbo; M. Drusch; J-F. Mahfouf

2004-06-01T23:59:59.000Z

298

Wavelets, Self-organizing Maps and Artificial Neural Nets for Predicting Energy Use and Estimating Uncertainties in Energy Savings in Commercial Buildings  

E-Print Network (OSTI)

Regression Variable De-correlations and Weights .......................... 59#1; Weights Calculation Method .................................................... 60#1; De-Correlation of Collinearity... for day j , ,post measured jE Measured energy use for day j h Filters solI Solar radiation MLR Multivariate linear regression xvii Nbhd Neighborhood p Number of regressor parameters RH Relative humidity Res dew...

Lei, Yafeng

2010-01-14T23:59:59.000Z

299

Fast-Ion Conduction and Flexibility of Glassy Networks Deassy I. Novita and P. Boolchand  

E-Print Network (OSTI)

, with important technological consequences. These materials find use in batteries, sen- sors, nonvolatile memories structure. Phase diagrams of disordered solids based on connect- edness of their backbones have their origin synthesized by handling usual pre- cursors in a dry [relative humidity (RH)

Boolchand, Punit

300

Nick Ovenden, Vivi Rottschfer A greenhouse growth model for unselfish roses NAW 5/3 nr. 4 december 2002 313 Nick Ovenden  

E-Print Network (OSTI)

), the relative hu- midity RH , the temperature in the greenhouse Ta, and the overall light intensity I0. We began its age a, the greenhouse temperature, humidity and CO2 concentration, as well as the amount of lightNick Ovenden, Vivi Rottschäfer A greenhouse growth model for unselfish roses NAW 5/3 nr. 4 december

Rottschäfer, Vivi

Note: This page contains sample records for the topic "relative humidity rh" 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

Latent Heat Flux and Canopy Conductance Based on Penman–Monteith, Priestley–Taylor Equation, and Bouchet’s Complementary Hypothesis  

Science Journals Connector (OSTI)

A novel method is presented to analytically resolve the terrestrial latent heat flux (?E) and conductances (boundary layer gB and surface gS) using net radiation (RN), ground heat flux (G), air temperature (Ta), and relative humidity (RH). This ...

Kaniska Mallick; Andrew Jarvis; Joshua B. Fisher; Kevin P. Tu; Eva Boegh; Dev Niyogi

2013-04-01T23:59:59.000Z

302

The frequency of tropopause-level thick and thin cirrus clouds as observed by CALIPSO and the relationship to relative humidity and outgoing longwave radiation  

E-Print Network (OSTI)

Thick cloud frequencies, in percent, for SON............................................ 52 15 DJF thin cirrus frequencies in colored contours at a) 121-hPa, b) 100-hPa, and c) 82-hPa with OLR values of 230 W-m-2 in black... contours......................................................................................... 53 16 MAM thin cirrus frequencies in colored contours at a) 121-hPa, b) 100-hPa, and c) 82-hPa with OLR values of 230 W-m-2...

Cardona, Allison Leanne

2008-10-10T23:59:59.000Z

303

Impact of Relative Humidity on the Survival of Desiccated Salmonella Cells on Surfaces with Peanut Butter Haiping Li, Christina Megalis, Mary Lou Tortorello  

E-Print Network (OSTI)

assessment of current post harvest and nut butter processing practices, and the development of best practices cases. Environmental samples tested positive in two recent outbreaks associated with nuts. In the 2006 Salmonella peanut butter outbreak, two environmental samples, one from a floor swab and another from

Heller, Barbara

304

X:\ARM_19~1\P273-281.WPD  

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

RH RH c ) RH c RH c RH c Session Papers 273 Evaluation of Cloud Prediction and Determination of Critical Relative Humidity for a Mesoscale Numerical Weather Prediction Model N. L. Seaman, Z. Guo, and T. P. Ackerman Pennsylvania State University, Department of Meteorology University Park, Pennsylvania Predictions of cloud occurrence and vertical location from the Pennsylvania State University/National Center for Atmospheric Research nonhydrostatic mesoscale model (MM5) were evaluated statistically using cloud observations obtained at Coffeyville, Kansas, as part of the Second International Satellite Cloud Climatology Project Regional Experiment campaign. Seventeen cases were selected for simulation during a November-December 1991 field study. MM5 was used to produce two sets of

305

Relational EPR  

E-Print Network (OSTI)

We study the EPR-type correlations from the perspective of the relational interpretation of quantum mechanics. We argue that these correlations do not entail any form of 'non-locality', when viewed in the context of this interpretation. The abandonment of strict Einstein realism implied by the relational stance permits to reconcile quantum mechanics, completeness, (operationally defined) separability, and locality.

Matteo Smerlak; Carlo Rovelli

2006-04-10T23:59:59.000Z

306

Performance Verification of Production-Scalable Energy-Efficient Solutions: Winchester/Camberley Homes Mixed-Humid Climate  

SciTech Connect

Winchester/Camberley Homes with the Building America program and its NAHB Research Center Industry Partnership collaborated to develop a new set of high performance home designs that could be applicable on a production scale. The new home designs are to be constructed in the mixed humid climate zone four and could eventually apply to all of the builder's home designs to meet or exceed future energy codes or performance-based programs. However, the builder recognized that the combination of new wall framing designs and materials, higher levels of insulation in the wall cavity, and more detailed air sealing to achieve lower infiltration rates changes the moisture characteristics of the wall system. In order to ensure long term durability and repeatable successful implementation with few call-backs, this report demonstrates through measured data that the wall system functions as a dynamic system, responding to changing interior and outdoor environmental conditions within recognized limits of the materials that make up the wall system. A similar investigation was made with respect to the complete redesign of the heating, cooling, air distribution, and ventilation systems intended to optimize the equipment size and configuration to significantly improve efficiency while maintaining indoor comfort. Recognizing the need to demonstrate the benefits of these efficiency features, the builder offered a new house model to serve as a test case to develop framing designs, evaluate material selections and installation requirements, changes to work scopes and contractor learning curves, as well as to compare theoretical performance characteristics with measured results.

Mallay, D.; Wiehagen, J.

2014-07-01T23:59:59.000Z

307

Integrated and Optimized Energy-Efficient Construction Package for a Community of Production Homes in the Mixed-Humid Climate  

SciTech Connect

Selection and integration of high performance home features are two sides of the same coin in energy efficient sustainable construction. Many advanced technologies are available for selection, but it is in the integration of these technologies into an affordable set of features that can be used on a production basis by builders, that ensures whole-house performance meets expectations. This research high performance home analyzes how a set of advanced technologies can be integrated into a durable and energy efficient house in the mixed-humid climate while remaining affordable to homeowners. The technical solutions documented in this report are the cornerstone of the builder's entire business model based on delivering high-performance homes on a production basis as a standard product offering to all price segments of the residential market. Home Innovation Research Labs partnered with production builder Nexus EnergyHomes (CZ 4). The builder plans to adopt the successful components of the energy solution package for all 55 homes in the community. The research objective was to optimize the builder's energy solution package based on energy performance and construction costs. All of the major construction features, including envelope upgrades, space conditioning system, hot water system, and solar electric system were analyzed. The information in this report can be used by builders and designers to evaluate options, and the integration of options, for increasing the efficiency of home designs in climate zone 4. The data also provide a point of reference for evaluating estimates of energy savings and costs for specific features.

Mallay, D.; Wiehagen, J.; Del Bianco, M.

2014-10-01T23:59:59.000Z

308

Direct Aerosol Forcing in the Infrared at the SGP Site?  

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

Direct Aerosol Forcing in the Infrared at the SGP Site? Direct Aerosol Forcing in the Infrared at the SGP Site? D. D. Turner and C. N. Long Pacific Northwest National Laboratory Richland, Washington Introduction Low level haze is often observed during the night and early morning hours in many locations. This haze is typically formed during quiescent conditions by radiative cooling of the surface, which lowers the ambient temperature and consequently increases the near-surface relative humidity (RH). Many aerosols start to deliquesce around 75% relative humidity (RH) (depending on their chemical composition), and thus if the near surface RH increases above this level, haze will form. The Atmospheric Radiation Measurement (ARM) Program's ultimate goal, stated simply, is to improve the treatment of radiative transfer in global climate models. Global climate models typically do not

309

Role of support in adsorption and catalysts on supported metals. II. IR spectroscopic study of adsorption of CO and CO/sub 2/ on Rh/ZrO/sub 2/  

SciTech Connect

IR spectroscopy has been used in a study of the adsorption of CO on Rh/ZrO/sub 2/. It has been found that, the same as in the case of Rh/La/sub 2/O/sub 3/, complexes of CO are formed on the surface of this system, these complexes being coordinated simultaneously by atoms of the metal and surface atoms of the support. This was demonstrated in experiments on selective blockage of the support surface by adsorbed CO/sub 2/.

Bredikhin, M.N.; Lokhov, Yu.A.

1987-12-01T23:59:59.000Z

310

Comparison of DOE-2.1E with Energyplus and TRNSYS for Ground Coupled Residential Buildings in Hot anf Humid Climates Stage 1  

E-Print Network (OSTI)

ESL-TR-11-12-08 COMPARISON OF DOE-2.1E WITH ENERGYPLUS AND TRNSYS FOR GROUND COUPLED RESIDENTIAL BUILDINGS IN HOT AND HUMID CLIMATES STAGE 1 “Literature Survey on Slab-on-grade Heat Transfer Models of DOE-2, EnergyPlus and TRNSYS... .................................................................................................................... 4 2. Introduction ........................................................................................................................................... 4 3. Literature Survey on Slab-on-grade Models of DOE-2, EnergyPlus and TRNSYS...

Andolsun, S.; Culp, C.

2011-01-01T23:59:59.000Z

311

An investigation of the heat and mass transfer by free convection from humid air to a horizontal metal plate under frosting conditions  

E-Print Network (OSTI)

AN INVESTIOATION OF THE NEAT AND MASS TRANSFER BY FREE CONVECTION FROM HUMID AIR TO A HDRIZOHTAL METAL PLATE UNDER FROSTINO COND1TIONS A Thesis By BOBBY BELL~ JR. Submitted to the Graduate College of Texas A%M University in partial... ~ ~ ~. . . 60 - 61 17 Total Heat Transferred, to Plate vs. Time ~ 18 19 20 Thermal Conductivity Coefficient of Frost vso Time. . . . . . . . . . ~ ~ . . ~ ~ Heat Transfer Convective Coefficient vs. Time ~ 0 4 ~ 0 ~ ~ 4 ~ ~ ~ Resistivity of' Air...

Bell, Bobby

2012-06-07T23:59:59.000Z

312

Analysis of the Energy Savings Potential in K-5 Schools in Hot and Humid Climates: Application of High Performance Measures and Renewable Energy Systems  

E-Print Network (OSTI)

ANALYSIS OF THE ENERGY SAVINGS POTENTIAL IN K-5 SCHOOLS IN HOT AND HUMID CLIMATES: APPLICATION OF HIGH PERFORMANCE MEASURES AND RENEWABLE ENERGY SYSTEMS1 Piljae Im1, and Jeff S. Haberl2 1Oak Ridge National Laboratory, Oak Ridge, TN 2Texas... the energy savings measures recommended as in the ASHRAE Advanced Energy Design Guides for K-12 Schools. As an effort to investigate more energy savings potential for the school building, several other energy savings measures and renewable energy...

Im, P.; Haberl, J.

313

Glossary of Energy-Related Terms | Department of Energy  

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

Glossary of Energy-Related Terms Glossary of Energy-Related Terms Glossary of Energy-Related Terms August 20, 2013 - 9:20am Addthis Here you'll find a glossary of energy-related terms. A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z A Absolute Humidity The ratio of the mass of water vapor to the volume occupied by a mixture of water vapor and dry air. Absorbent A material that extracts one or more substances from a fluid (gas or liquid) medium on contact, and which changes physically and/or chemically in the process. The less volatile of the two working fluids in an absorption cooling device. Absorber The component of a solar thermal collector that absorbs solar radiation and converts it to heat, or, as in a solar photovoltaic device, the material

314

Glossary of Energy-Related Terms | Department of Energy  

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

Glossary of Energy-Related Terms Glossary of Energy-Related Terms Glossary of Energy-Related Terms August 20, 2013 - 9:20am Addthis Here you'll find a glossary of energy-related terms. A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z A Absolute Humidity The ratio of the mass of water vapor to the volume occupied by a mixture of water vapor and dry air. Absorbent A material that extracts one or more substances from a fluid (gas or liquid) medium on contact, and which changes physically and/or chemically in the process. The less volatile of the two working fluids in an absorption cooling device. Absorber The component of a solar thermal collector that absorbs solar radiation and converts it to heat, or, as in a solar photovoltaic device, the material

315

Building America Technology Solutions for New and Existing Homes: Impact of Infiltration and Ventilation on Measured Space Conditioning Energy and Moisture Levels in the Hot-Humid Climate, Cocoa, Florida (Fact Sheet)  

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

This case study describes research to assess the moisture and cooling load impacts of airtightness and mechanical ventilation in two identical laboratory homes in the hot-humid climate over the cooling season.

316

ETME 422 -REFRIGERATION & HVAC SYSTEMS FALL 2011 LEC -10:00 -10:50am M W F RH 312  

E-Print Network (OSTI)

-1209(h) Office Hours: M-F 1-2p.m. Text: Heating, Ventilating, and Air Conditioning - Analysis and Design. -- Refrigeration and heating, ventilating and air-conditioning (HVAC) for comfort and industrial applications of the fundamentals of Heating, Ventilating, Air Conditioning, and Refrigeration as they relate to human comfort

Dyer, Bill

317

ARM - Publications: Science Team Meeting Documents  

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

ARM Radiosonde Humidity Measurements and Proposed Corrections ARM Radiosonde Humidity Measurements and Proposed Corrections Based On AWEX Radiosonde Intercomparisons Miloshevich, L.M.(a), Lesht, B.M.(b), and Voemel, H.(c), National Center for Atmospheric Research (a), Argonne National Laboratory (b), NOAA/CMDL (c) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM radiosonde relative humidity (RH) measurements are widely used in numerical modeling, remote sensor validation, and radiative transfer calculations, yet their accuracy as a function of temperature and RH has not been adequately quantified. During the AIRS Water vapor EXperiment (AWEX) at the SGP site in November 2003, 34 launches of multiple radiosondes on the same balloon were conducted, including 12 soundings from the University of Colorado's Cryogenic Frostpoint Hygrometer (CFH). The

318

Comparison of DOE-2.1E with Energyplus and TRNSYS for Ground Coupled Residential Buildings in Hot anf Humid Climates Stage 4  

E-Print Network (OSTI)

ESL-TR-12-02-02 COMPARISON OF DOE-2.1E WITH ENERGYPLUS AND TRNSYS FOR GROUND COUPLED RESIDENTIAL BUILDINGS IN HOT AND HUMID CLIMATES STAGE 4 “Fully Loaded IECC Compliant Slab-on-grade Houses in the Four U.S. Climates” A Report...F/Btu) Rfic resistance of the fictitious insulation layer (hr-ft2-oF/Btu) GI ground isolated EP modeled with EnergyPlus D2 modeled with DOE-2 TR modeled with TRNSYS GCW ground coupled with Winkelmann’s slab-on-grade model GCS ground coupled with Slab...

Andolsun, S.; Culp, C.

2012-01-01T23:59:59.000Z

319

Control of water infiltration into near surface low-level waste disposal units. Final report on field experiments at a humid region site, Beltsville, Maryland  

SciTech Connect

This study`s objective was to assess means for controlling water infiltration through waste disposal unit covers in humid regions. Experimental work was carried out in large-scale lysimeters 21.34 m x 13.72 m x 3.05 m (70 ft x 45 ft x 10 ft) at Beltsville, Maryland. Results of the assessment are applicable to disposal of low-level radioactive waste (LLW), uranium mill tailings, hazardous waste, and sanitary landfills. Three kinds of waste disposal unit covers or barriers to water infiltration were investigated: (1) resistive layer barrier, (2) conductive layer barrier, and (3) bioengineering management.

Schulz, R.K.; Ridky, R.W.; O`Donnell, E.

1997-09-01T23:59:59.000Z

320

miller-er-99.PDF  

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

Correction for Dry Bias in Vaisala Radiosonde RH Data Correction for Dry Bias in Vaisala Radiosonde RH Data E. R. Miller, J. Wang, and H. L. Cole National Center for Atmospheric Research Atmospheric Technology Division Boulder, Colorado Abstract Extensive data analysis of sounding data from the Tropical Ocean Global Atmosphere-Coupled Ocean Atmosphere Response Experiment (TOGA-COARE) and other research projects coupled with supporting evidence from other sources have lead to the conclusion that there is a dry bias in Vaisala radiosonde relative humidity (RH) measurements. This dry bias occurs in both the A-type and H-type radiosonde RH sensors. Convinced of the problem, Vaisala engineers conducted extensive chamber tests on Vaisala sondes of varying age. Vaisala determined that the dry bias was due to contamination

Note: This page contains sample records for the topic "relative humidity rh" 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

Relational Database SQL: Querying the Relational DB  

E-Print Network (OSTI)

: auto-completion and command history Weigang Qiu Relational Database & SQL #12;Relational Database SQLRelational Database SQL: Querying the Relational DB Workshop: the "genome" Database Relational Database & SQL Weigang Qiu Department of Biological Sciences Hunter College BIOL 425 Computational

Qiu, Weigang

322

Structure and electrical transport properties of the ordered skutterudites MGe{sub 1.5}S{sub 1.5} (M=Co, Rh, Ir)  

SciTech Connect

High-resolution powder neutron diffraction data collected for the skutterudites MGe{sub 1.5}S{sub 1.5} (M=Co, Rh, Ir) reveal that these materials adopt an ordered skutterudite structure (space group R3-bar ), in which the anions are ordered in layers perpendicular to the [111] direction. In this ordered structure, the anions form two-crystallographically distinct four-membered rings, with stoichiometry Ge{sub 2}S{sub 2}, in which the Ge and S atoms are trans to each other. The transport properties of these materials, which are p-type semiconductors, are discussed in the light of the structural results. The effect of iron substitution in CoGe{sub 1.5}S{sub 1.5} has been investigated. While doping of CoGe{sub 1.5}S{sub 1.5} has a marked effect on both the electrical resistivity and the Seebeck coefficient, these ternary skutterudites exhibit significantly higher electrical resistivities than their binary counterparts. - Graphical abstract: The MGe{sub 1.5}S{sub 1.5} phases exhibit an ordered skutterudite structure, in which the anions form diamond-like four-membered Ge{sub 2}S{sub 2} rings.

Vaqueiro, Paz [Department of Chemistry, Heriot-Watt University, Edinburgh EH14 4AS (United Kingdom)], E-mail: chepv@hw.ac.uk; Sobany, Gerard G.; Stindl, Martin [Department of Chemistry, Heriot-Watt University, Edinburgh EH14 4AS (United Kingdom)

2008-04-15T23:59:59.000Z

323

Superconductivity in amorphous T5T9 transition-metal alloys (T5=Nb,Ta; T9=Rh,Ir)  

Science Journals Connector (OSTI)

The superconducting transition temperature Tc has been measured for amorphous T5T9 alloys (where T5=Nb or Ta , T9=Rb or Ir ) as a function of composition. Nb and Ta dominated the Tc behavior with Tc for Nb alloys ? 4.8-5.1 K and Tc for Ta alloys ? 3.1-3.3 K. Changing the average group number by varying the T5T9 ratio had little effect on Tc within the ? 10 at.% range of composition in which the amorphous alloys form. Tc decreased approximately linearly with x for (Nb1-xTax)55Rh45 and (Nb1-xTax)55Ir45. The electrical resistivity ?n and the upper critical field Bc2 were measured as functions of temperature. The Sommerfeld constant ? was calculated from ?n and dBc2dT|Tc using the Ginzburg-Landau-Abrikosov-Gor'kov theory. The Debye temperature ?D was calculated from measurements of Young's modulus. The above parameters allowed calculations to be made of N(EF), the density of electronic states at the Fermi level, and ?, the electron-phonon coupling constant. It was found that ? more accurately reflected the Tc behavior than did N(EF) and that both electronic and phonon contributions had to be considered in the determination of ?.

C. C. Koch; D. M. Kroeger; J. O. Scarbrough; B. C. Giessen

1980-12-01T23:59:59.000Z

324

Field usage and its impact on energy consumption of refrigerator/freezers  

SciTech Connect

This study investigated the effect of door openings and kitchen environment on the energy consumption of nine household refrigerator/freezers (R/Fs) in the field. The factors under consideration include fresh food and freezer door openings, length of door openings, ambient kitchen temperature, and kitchen relative humidity (RH). Average daily energy consumption for the nine units ranged from 1.7 to 5.3 kWh/day. Energy consumption was found to correlate with kitchen temperature and the number of door openings. No dependence on kitchen relative humidity was found. In general, the magnitude of the door opening component of energy consumption was higher for the more efficient units.

Gage, C.L. [Environmental Protection Agency, Research Triangle Park, NC (United States). Air Pollution Prevention and Control Div.

1995-12-31T23:59:59.000Z

325

How and why electrostatic charge of combustible nanoparticles can radically change the mechanism and rate of their oxidation in humid atmosphere  

E-Print Network (OSTI)

Electrostatically charged aerosol nanoparticles strongly attract surrounding polar gas molecules due to a charge-dipole interaction. In humid air, the substantial electrostatic attraction and acceleration of surrounding water vapour molecules towards charged combustible nanoparticles cause intense electrostatic hydration and preferential oxidation of these nanoparticles by accelerated water vapor molecules rather than non-polar oxygen molecules. In particular, electrostatic acceleration, acquired by surrounding water vapour molecules at a distance of their mean free path from the minimally charged iron metal nanoparticle can increase an oxidative activity of these polar molecules with respect to the nanoparticle by a factor of one million. Intense electrostatic hydration of charged metal nanoparticles converts the nanoparticle's oxide based shells into the hydroxide based electrolyte shells, transforming these nanoparticles into metal/air core-shell nanobatteries, periodically short-circuited by intra-particl...

Meshcheryakov, Oleg

2010-01-01T23:59:59.000Z

326

Kinetic study on the catalytic performance of Rh/TiO/sub 2/ reduced at different temperatures in the CO-H/sub 2/ reaction  

SciTech Connect

Catalytic CO-H/sub 2/ reaction on Rh/TiO/sub 2/ reduced at 200, 400, and 500/sup 0/C (Cat-200, -400, -500) for 2 h was kinetically studied at 250/sup 0/C using a circulating reactor and Fourier transform-infrared (FT-IR) spectroscopy to determine how Cat-400 exhibited the highest activity. The rate equation distinguished the best catalyst with zero and first orders in CO and H/sub 2/, respectively, from other catalysts with negative order in CO. The adsorption ability of the catalyst at 200/sup 0/C was comparable to that of Cat-200, and two to three times larger than that of Cat-500, although the ability of Cat-200 was much larger at room temperature. Carbon monoxide adsorbed on the catalysts reversibly as well as irreversibly. IR spectroscopy revealed that the major form of irreversibly adsorbed CO was linear on Cat-200, whereas similar amounts of linear and bridge forms were observed on Cat-400 and Cat-500. These latter forms were highly reactive against hydrogen molecules when no carbon monoxide was present in the gas phase. Based on these results, the highest activity of Cat-400 is ascribed to rhodium metal modified by properly reduced TiO/sub 2/ to show the appropriate adsorption ability of carbon monoxide which least retards the activation of hydrogen according to first-order kinetics. Typical strong metal-support interaction decreases the catalytic activity by decreasing the active sites and strengthening the CO adsorption too much.

Fujitsu, H.; Ikeyama, N.; Mochida, I.

1986-08-01T23:59:59.000Z

327

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

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

328

Estimated Effects of Disinfection By-products on Birth Weight in a Population Served by a Single Water Utility  

E-Print Network (OSTI)

related hypertension, sickle cell anemia, Rh sen- sitivity,Rh sensitivity, sickle cell anemia, and uterine bleeding. y

Lewis, C.; Suffet, I. H.; Ritz, B.

2006-01-01T23:59:59.000Z

329

Viscosity of ?-pinene secondary organic material and implications for particle growth and reactivity  

SciTech Connect

Particles composed of secondary organic material (SOM) are abundant in the lower troposphere and play important roles in climate, air quality, and health. The viscosity of these particles is a fundamental property that is presently poorly quantified for conditions relevant to the lower troposphere. Using two new techniques, namely a bead-mobility technique and a poke-flow technique, in conjunction with simulations of fluid flow, we measure the viscosity of the watersoluble component of SOM produced by ?-pinene ozonolysis. The viscosity is comparable to that of honey at 90% relative humidity (RH), comparable to that of peanut butter at 70% RH and greater than or comparable to that of bitumen for ? 30% RH, implying that the studied SOM ranges from liquid to semisolid/solid at ambient relative humidities. With the Stokes-Einstein relation, the measured viscosities further imply that the growth and evaporation of SOM by the exchange of organic molecules between the gas and condensed phases may be confined to the surface region when RH ? 30%, suggesting the importance of an adsorption-type mechanism for partitioning in this regime. By comparison, for RH ? 70% partitioning of organic molecules may effectively occur by an absorption mechanism throughout the bulk of the particle. Finally, the net uptake rates of semi-reactive atmospheric oxidants such as O3 are expected to decrease by two to five orders of magnitude for a change in RH from 90% to ? 30% RH, with possible implications for the rates of chemical aging of SOM particles in the atmosphere.

Renbaum-Wolff, Lindsay; Grayson, James W.; Bateman, Adam P.; Kuwata, Mikinori; Sellier, Mathieu; Murray, Benjamin J.; Shilling, John E.; Martin, Scot T.; Bertram, Allan K.

2013-05-14T23:59:59.000Z

330

Issues related to venting of attics and cathedral ceilings  

SciTech Connect

Current model building codes require attic ventilation in all US climates. Originally, these requirements were strictly based on concerns for condensation in attics during winter in cold climates, and they were based on limited technical information. Nevertheless, attic ventilation has become the uncontested strategy to minimize condensation and ice dams during winter and extreme attic temperatures during summer. However, other strategies exist that address each of these problems as well as or better than attic ventilation. This paper examines issues such as summer attic temperatures, ice dams, and shingle durability and discusses the relative merits of attic ventilation compared to alternative design approaches in various climates. The authors support current recommendations for attic ventilation in cold and mixed climates but recommend that attic ventilation be treated as a design option in warm, humid climates. The authors review the new information on attic and roof ventilation in the 1997 ASHRAE Handbook--Fundamentals and discuss the reasons for the changes.

TenWolde, A.; Rose, W.B.

1999-07-01T23:59:59.000Z

331

ARM - Datastreams - amc  

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

Datastreamsamc Datastreamsamc Documentation Data Quality Plots Citation DOI: 10.5439/1095578 [ What is this? ] Generate Citation 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 Datastream : AMC Ameriflux Measurement Component Active Dates 2012.08.08 - 2014.01.08 Measurement Categories Radiometric, Surface Properties Originating Instrument Ameriflux Measurement Component (AMC) Measurements Only measurements considered scientifically relevant are shown below by default. Show all measurements Measurement Units Variable Altitude above mean sea level m alt Base time in Epoch seconds since 1970-1-1 0:00:00 0:00 base_time Logger relative humidity % enclosure_rh ( time ) North latitude degree_N lat Logger enclusure relative humidity % logger_enclosure_rh ( time )

332

ARM Energy Balance Bowen Ratio (EBBR) station: surf. heat flux and related data, 30-min  

DOE Data Explorer (OSTI)

The Energy Balance Bowen Ratio (EBBR) system produces 30-min estimates of the vertical fluxes of sensible and latent heat at the local surface. Flux estimates are calculated from observations of net radiation, soil surface heat flux, and the vertical gradients of temperature and relative humidity. Meteorological data collected by the EBBR are used to calculate bulk aerodynamic fluxes, which are used in the Bulk Aerodynamic Technique (BA) EBBR value-added product (VAP) to replace sunrise and sunset spikes in the flux data. A unique aspect of the system is the automatic exchange mechanism (AEM), which helps to reduce errors from instrument offset drift.

Cook, David

333

Contact Mechanics Based Mechanical Characterization of Portland Cement Paste  

E-Print Network (OSTI)

sp surface pressure 0P maximum Hertz pressure r radial coordinate for axisymmetry R tip radius RH relative humidity t time lt loading time ht load holding time ut unloading time ? dimensionless parameter... show the ability of the self-consistent solution to capture both repulsive and adhesive effects. Also plotted are the Hertzian pressure profiles for the same indentation depths. Notice that because the Hertz solution neglects the adhesion outside...

Jones, Christopher

2012-02-14T23:59:59.000Z

334

Supplemental information related to risk assessment for the off-site transportation of transuranic waste for the U.S. Department of Energy waste management programmatic environmental impact statement  

SciTech Connect

This report presents supplemental information to support the human health risk assessment conducted for the transportation of transuranic waste (TRUW) in support of the US Department of Energy Waste Management Programmatic Environmental Impact Statement (WM PEIS). Detailed descriptions of the transportation health risk assessment method and results of the assessment are presented in Appendix E of the WM PEIS and are not repeated in this report. This report presents additional information that is not presented in Appendix E but is necessary to conduct the transportation risk assessment for Waste Management (WM) contact- and remote-handed (CH and RH) TRUW. Included are definitions of the TRUW alternatives considered in the WM PEIS, data related to the inventory and to the physical and radiological characteristics of CH and RH TRUW, and detailed results of the assessment for each WM TRUW case considered.

Monette, F.A.; Biwer, B.M.; LePoire, D.J.; Chen, S.Y. [Argonne National Lab., IL (United States). Environmental Assessment Div.

1996-12-01T23:59:59.000Z

335

Hydrogen Scrambling in [(C5R5)(L)M(H)(C2H4)]+ (M = Co, Rh). Relation of Experimental Kinetic Data to the Barriers of the Elementary Reaction Steps  

Science Journals Connector (OSTI)

Brookhart, M., Lincoln, D. M., Volpe, A. F., Jr, and Schmidt, G. F. Organometallics 1989, 8, 1212– 1218 ... (g) McNally, J. P. and Cooper, N. J. Organometallics 1988, 7, 1704– 1715 ...

Rong Xu; Gu?nter Klatt; Hubert Wadepohl; Horst Ko?ppel

2010-03-04T23:59:59.000Z

336

DOE/EIS-0026-SA-4: Supplement Analysis for Use of the 10-160B Transportation Cask for RH-TRU Waste Shipments to WIPP (12/17/02)  

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

1-04 15,22 FROM,L AND M TECH 1-04 15,22 FROM,L AND M TECH ID,5052347038 PAGE 3/15 [TX/RX NO 6044] 141003 08/31/2004 TOE 15:22 PAGE 4/15 IC,5052347038 AUG-31-04 15,22 FROM,L AND M TECH PAGE 1 of 9 Supplement Analysis for USE OF THE IO-160B TRANSPORTATION CASK FOR RH-TRUWASTE SHIPMENTS TO WIPP 1.0 INTRODUCTION The U.S. Department of Energy (DOE) is propo~ing to use the CNS lO-160B, Type B Shipping Cask (referred to in this document simply as the lO-160B) to transport remote handled (RH) transuranic (TRU) wastes to the Waste Isolation Pilot Plant (WIPP). DOE originally examined the impacts ofWlPP operations in the Waste Isolation Pilot Plant Disposal Phase Final Supplemental Environmental Impact Statement, DOE/EIS-OO26-S-2, (SEIS~II). This Supplement Analysis (SA) discusses environmental impacts associated with

337

Understanding Causal Coherence Relations.  

E-Print Network (OSTI)

??The research reported in this dissertation focuses on the cognitive processes and representations involved in understanding causal coherence relations in text. Coherence relations are the… (more)

Mulder, G.

2008-01-01T23:59:59.000Z

338

Bay Ridge Gardens - Mixed Humid Affordable Multifamily Housing Deep Energy Retrofit, Annapolis, Maryland (Fact Sheet), Building America Case Study: Efficient Solutions for New and Existing Homes, Building Technologies Office (BTO)  

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

Bay Ridge Gardens-Mixed Bay Ridge Gardens-Mixed Humid Affordable Multifamily Housing Deep Energy Retrofit Annapolis, Maryland PROJECT INFORMATION Construction: Existing Type: Apartment building: Bay Ridge Gardens Annapolis, MD www.bayridgegardens.com Size: 12 apartment units, 713 ft 2 and 909 ft 2 each Year of construction: 1970s Date completed: 2013 Climate Zone: Mixed-humid PERFORMANCE DATA Pre-retrofit annual energy use (normalized): 28.4 kilowatt-hour per square foot (kWh/ft 2 ) Post-retrofit annual energy use (normalized): 16.3 kWh/ft 2 Percent energy savings: 43% Incremental cost of energy efficiency measures: $85,996 Monetized annual energy savings: $6,900 Savings to Investment Ratio: 1.1 Significant energy savings-43% in this case-are possible in older multifamily

339

Control of water infiltration into near surface LLW disposal units. Progress report on field experiments at a humid region site, Beltsville, Maryland: Volume 8  

SciTech Connect

This study`s objective is to assess means for controlling water infiltration through waste disposal unit covers in humid regions. Experimental work is being performed in large-scale lysimeters 21.34 m x 13.72 m x 3.05 m (75 ft x 45 ft x 10 ft) at Beltsville, Maryland. Results of the assessment are applicable to disposal of low-level radioactive waste (LLW), uranium mill tailings, hazardous waste, and sanitary landfills. Three kinds of waste disposal unit covers or barriers to water infiltration are being investigated: (1) resistive layer barrier, (2) conductive layer barrier, and (3) bioengineering management. The resistive layer barrier consists of compacted earthen material (e.g., clay). The conductive layer barrier consists of a conductive layer in conjunction with a capillary break. As long as unsaturated flow conditions are maintained, the conductive layer will wick water around the capillary break. Below-grade layered covers such as (1) and (2) will fail if there is appreciable subsidence of the cover, and remedial action for this kind of failure will be difficult. A surface cover, called bioengineering management, is meant to overcome this problem. The bioengineering management surface barrier is easily repairable if damaged by subsidence; therefore, it could be the system of choice under active subsidence conditions. The bioengineering management procedure also has been shown to be effective in dewatering saturated trenches and could be used for remedial action efforts. After cessation of subsidence, that procedure could be replaced by a resistive layer barrier or, perhaps even better, by a resistive layer barrier/conductive layer barrier system. The latter system would then give long-term effective protection against water entry into waste without institutional care.

Schulz, R.K. [California Univ., Los Angeles, CA (United States); Ridky, R.W. [Maryland Univ., College Park, MD (United States). Dept. of Geology; O`Donnell, E. [Nuclear Regulatory Commission, Washington, DC (United States)

1995-04-01T23:59:59.000Z

340

Control of water infiltration into near surface LLW disposal units: Progress report on field experiments at a humid region site, Beltsville, Maryland  

SciTech Connect

This study`s objective is to assess means for controlling water infiltration through waste disposal unit covers in humid regions. Experimental work is being performed in large-scale lysimeters 21.34 m x 13.72 m x 3.05 m (70 ft x 45 ft x 10 ft) at Beltsville, Maryland. Results of the assessment are applicable to disposal of low-level radioactive waste (LLW), uranium mill tailings, hazardous waste, and sanitary landfills. Three kinds of waste disposal unit covers or barriers to water infiltration are being investigated: (1) resistive layer barrier, (2) conductive layer barrier, and (3) bioengineering management. The resistive layer barrier consists of compacted earthen material (e.g., clay). The conductive layer barrier consists of a conductive layer in conjunction with a capillary break. As long as unsaturated flow conditions are maintained, the conductive layer will wick water around the capillary break. Below-grade layered covers such as (1) and (2) will fail if there is appreciable subsidence of the cover, and remedial action for this kind of failure will be difficult. A surface cover, called bioengineering management, is meant to overcome this problem. The bioengineering management surface barrier is easily repairable if damaged by subsidence; therefore, it could be the system of choice under active subsidence conditions. The bioengineering management procedure also has been shown to be effective in dewatering saturated trenches and could be used for remedial action efforts. After cessation of subsidence, that procedure could be replaced by a resistive layer barrier or, perhaps even better, by a resistive layer barrier/conductive layer barrier system. The latter system would then give long-term effective protection against water entry into waste without institutional care.

Schulz, R.K. [Univ. of California, Los Angeles, CA (United States); Ridky, R.W. [Univ. of Maryland, College Park, MD (United States). Dept. of Chemistry; O`Donnell, E. [Nuclear Regulatory Commission, Washington, DC (United States)

1996-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "relative humidity rh" 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

Research Highlight  

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

Laboratory-Measured Optical Properties of Primary Organic Aerosol for Laboratory-Measured Optical Properties of Primary Organic Aerosol for Humidities Up to 95% Download a printable PDF Submitter: Bond, T., University of Illinois, Urbana Rood, M. J., University of Illinois, Urbana Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal Reference: Brem BT, FC Mena Gonzalez, SR Meyers, TC Bond, and MJ Rood. 2011. "Laboratory-measured optical properties of inorganic and organic aerosols at relative humidities up to 95%." Aerosol Science and Technology, 46(2), doi:10.1080/02786826.2011.617794. Optical properties of the nigrosin benchmark aerosol as a function of relative humidity (RH). Measured extinction (σep) and scattering (σsp) for 467 nm, 530 nm and 660 nm are shown in 1a), 1b) and 1c); calculated

342

Interactive Roles of Gonadotropin-Releasing Hormone and RF-Amide Related Peptide 3 in Adenohypophyseal Physiology and Reporduction in the Mare  

E-Print Network (OSTI)

to develop the principals needed to apply gonadotropin-releasing hormone (GnRH) therapeutics for routinely establishing pregnancies in the winter anovulatory mare. We first tested the hypothesis that continuous administration of native GnRH, beginning...

Thorson, Jennifer Frances

2013-01-28T23:59:59.000Z

343

Fire Protection Related Sites  

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

Fire Protection related sites for Department of Energy, Non-DOE Government and Non-Government information.

344

NREL: News - Related Links  

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

Related Links The U.S. Department of Energy provides news online: EERE Network News News and Blog Science News Science and Technology Highlights from the National Laboratories...

345

Thermodynamics and scale relativity  

E-Print Network (OSTI)

It is shown how the fractal paths of scale relativity (following Nottale) can be introduced into a thermodynamical context (following Asadov-Kechkin).

Robert Carroll

2011-10-13T23:59:59.000Z

346

PHOTOSYNTHESIS AND RELATED PROCESSES  

E-Print Network (OSTI)

#12;#12;#12;#12;PHOTOSYNTHESIS AND RELATED PROCESSES VOLUME II Part 2 #12;� '�;- py as- b^ Section Research, 7, 288, 1954). #12;PHOTOSYNTHESIS nnd Related Processes By EUGENE I. RABINOWITCH Research Professor, Photosynthesis Research Labora- tory, Department of Botany, University of Illinois. Formerly

Govindjee

347

de Sitter special relativity  

E-Print Network (OSTI)

A special relativity based on the de Sitter group is introduced, which is the theory that might hold up in the presence of a non-vanishing cosmological constant. Like ordinary special relativity, it retains the quotient character of spacetime, and a notion of homogeneity. As a consequence, the underlying spacetime will be a de Sitter spacetime, whose associated kinematics will differ from that of ordinary special relativity. The corresponding modified notions of energy and momentum are obtained, and the exact relationship between them, which is invariant under a re-scaling of the involved quantities, explicitly exhibited. Since the de Sitter group can be considered a particular deformation of the Poincar\\'e group, this theory turns out to be a specific kind of deformed (or doubly) special relativity. Some experimental consequences, as well as the causal structure of spacetime--modified by the presence of the de Sitter horizon--are briefly discussed.

R. Aldrovandi; J. P. Beltran Almeida; J. G. Pereira

2007-02-08T23:59:59.000Z

348

General relativity and experiment  

E-Print Network (OSTI)

The confrontation between Einstein's theory of gravitation and experiment is summarized. Although all current experimental data are compatible with general relativity, the importance of pursuing the quest for possible deviations from Einstein's theory is emphasized.

T. Damour

1994-12-08T23:59:59.000Z

349

Recursive relational urban design  

E-Print Network (OSTI)

This thesis proposes a methodology for the act of urban design that is recursive and centered around explicit relational operations, enabled by taking advantage of computation and parametric techniques. It contains iterative ...

Hillman, Dessen

2014-01-01T23:59:59.000Z

350

X:\ARM_19~1\P225-243.WPD  

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

SO SO 2 4 0.5 F T (1 A c )T 2 (1 R s ) 2 RH r SO 2 4 (RH) SO 2 4 x F(RH)] SO 2 SO 2 ) F T A c (1 A c ) R s RH r SO 2 4 (RH) SO 2 4 SO 2 SO 2 , SO 2 SO 2 Session Papers 231 (1) Direct Shortwave Forcing of Climate by Anthropogenic Sulfate Aerosol: Sensitivity to Particle Size, Composition, and Relative Humidity S. Nemesure, R. Wagener, and S. E. Schwartz Environmental Chemistry Division Brookhaven National Laboratory Upton, New York Recent estimates of global- or hemispheric-average forcing = the solar constant, the solar radiative flu x of climate by anthropogenic sulfate aerosol due t o at a mean distance from the earth to th e scattering of shortwave radiation ("direct" effect) ar e sun uncertain by somewhat more than a factor of 2. Th e = the fractional cloud cover in the area o f principal sources of this uncertainty are atmospheri

351

Looking beyond special relativity  

E-Print Network (OSTI)

Einstein's Special Theory of Relativity was proposed a little over a hundred years back. It remained a bedrock of twentieth century physics right up to Quantum Field Theory. However, the failure over several decades to provide a unified description of Electromagnetism and Gravitation or alternatively, Quantum Theory and General Relativity has finally lead researchers to abandon the differentiable spacetime manifold on which all of the above was based. In the most recent approaches we consider a spacetime that is discretized or is noncommutative. This immediately leads to corrections to the Special Theory of Relativity, more specifically to Lorentz Symmetry. It is quite significant that there are observational indicators, particularly in ultra high energy cosmic rays which suggest that such corrections are indeed there. We examine the whole issue in this paper.

B. G. Sidharth

2006-03-23T23:59:59.000Z

352

31062 Meteorology Exam 2 Review October 29, 2009  

E-Print Network (OSTI)

Chapter 6 · What are the four main ways that air can get lifted to form clouds? · What does stability mean, humidity, saturation specific humidity, specific humidity, relative humidity, and dew point, lapse rate

Sheridan, Scott

353

Research Results from A Few Alternate Methods of Interior Duct Systems in Factory Built Housing Located In the Hot Humid Climate  

E-Print Network (OSTI)

The U.S. Department of Energy’s (DOE) Building America1 Industrialized Housing Partnership (BAIHP) has collaborated with two of its industry partners to work on a portion of the project that relates to the construction and evaluation of prototype...

Moyer, N.; Stroer, D.; Hoak, D.; McIlvaine, J.; Chandra, S.

354

Related Federal Climate Efforts  

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

Related Federal Climate Efforts Print E-mail Related Federal Climate Efforts Print E-mail Interagency Task Force on Carbon Capture and Storage The Interagency Task Force on Carbon Capture and Storage (CCS) is a group of technologies for capturing, compressing, transporting and permanently storing power plant and industrial source emissions of carbon dioxide. Rapid development and deployment of clean coal technologies, particularly CCS, will help position the United States as a leader in the global clean energy race. Climate Change Adaptation Task Force The Task Force's work has been guided by a strategic vision of a resilient, healthy, and prosperous Nation in the face of a changing climate. To achieve this vision, the Task Force identified a set of guiding principles that public and private decision-makers should consider in designing and implementing adaptation strategies.

355

Related Data Sites  

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

Related Data Sites Related Data Sites CDIAC has listed the following Web sites because these sites offer high-quality data sets (not available through CDIAC) from a variety of global-change themes. These links will take you outside of CDIAC, therefore, we are not responsible for the content or intent of these outside links. This list is not intended to be comprehensive, but we do hope you find it useful if you cannot find what you are looking for here at CDIAC. Multi-Agency Sites Global Change Data and Information System (GCDIS) GCDIS is a collection of distributed information systems operated by government agencies involved in global change research. GCDIS provides global change data to scientists and researchers, policy makers, educators, industry, and the public at large and includes multidisciplinary data from

356

Community Relations Plan Update  

Office of Legacy Management (LM)

8-TAR 8-TAR MAC-MRAP 1.9.1 Monticello Mill Tailings Superfund Site and Monticello Vicinity Properties Superfund Site Monticello, Utah Community Relations Plan Update FY 2001 Prepared for U.S. Department of Energy Albuquerque Operations Office Grand Junction Office Prepared by MACTEC Environmental Restoration Services, LLC Grand Junction, Colorado Work performed under DOE Contract No. DE-AC13-96GJ87335 for the U.S. Department of Energy For more information or to request additional copies of this document, please call (800) 269-7145 (Utah only) or Monticello Repository Office Complex (435) 587-4000 DOE Grand Junction Office Community Relations Plan Update FY 2001 Page v Table of Contents Terms and Abbreviations........................................................................................................... vii

357

Related Frog Web Pages  

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

Related Web Pages on Frogs Related Web Pages on Frogs The images of the frog in this kit are computer-generated. For another approach, in which photos and movies are used to follow an actual frog dissection, see the University of Virginia's pages here. For a lot of kid-oriented information about frogs, see Frogland. For live frog lovers .... Sounds of North American Frogs (a CD from Smithsonian Folkways). The Exploratorium in San Francisco maintains an on-line exhibit on frogs. Don't Dissect a Frog, Build it is a section in Nicholas Negroponte's online version of Being Digital. For veterinary and conservation issues, see Association of Reptilian and Amphibian Veterinarians. And of course, The FROGGY Page Berkeley Lab | ACS | Notice to Users | Whole Frog Project | Virtual Frog Page last modified: 01/26/05

358

Fermilab Today - Related Content  

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

Related Content Related Content Subscribe | Contact Fermilab Today | Archive | Classifieds Search GO Classifieds Director's Corner Physics in a Nutshell Frontier Science Result Tip of the Week Archive User University Profiles Experiment Profiles Current Archive Current Fermilab Today Archive of 2014 Archive of 2013 Archive of 2012 Archive of 2011 Archive of 2010 Archive of 2009 Archive of 2008 Archive of 2007 Archive of 2006 Archive of 2005 Archive of 2004 Archive of 2003 CERN Courier Published by CERN Contact: cern.courier@cern.ch Computing Bits Published by Fermilab's Computing Sector Contact: http://computing.fnal.gov/news/feedback/feedback.html DPF Newsletter Published by the APS Division of Particles and Fields Contact: mcbride@fnal.gov Fermilab Friends of Science Published by Fermilab's Office of Education

359

Hauptmann's Relation To Christianity  

E-Print Network (OSTI)

KU ScholarWorks | The University of Kansas Pre-1923 Dissertations and Theses Collection Hauptmann’s Relation To Christianity 1914 by Irene May Garrett This work was digitized by the Scholarly Communications program staff in the KU Libraries... S T I A N I T Y . »y Irene May Garrett, A thesis submitted to the department of German of the University of Kansas in partial fullfilment of the requirements for the Master's Degree. May 15, 1914. Bibliography. Biography. Schlenther, Paul...

Garrett, Irene May

1914-05-15T23:59:59.000Z

360

Performance of a Heat Pump Water Heater in the Hot-Humid Climate, Windermere, Florida (Fact Sheet), Building America Case Study: Technology Solutions for New and Existing Homes, Building Technologies Office (BTO)  

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

Performance of a Performance of a Heat Pump Water Heater in the Hot-Humid Climate Windermere, Florida Over recent years, heat pump water heaters (HPWHs) have become more read- ily available and more widely adopted in the marketplace. A key feature of an HPWH unit is that it is a hybrid system. When conditions are favorable, the unit will operate in heat pump mode (using a vapor compression system that extracts heat from the surrounding air) to efficiently provide domestic hot water (DHW). Homeowners need not adjust their behavior to conform to the heat pump's capabilities. If a heat pump cannot meet a higher water draw demand, the heater will switch to electric resistance to provide a higher heating rate. This flexibility

Note: This page contains sample records for the topic "relative humidity rh" 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

Clean Cities: Related Financial Opportunities  

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

Financial Opportunities Financial Opportunities Printable Version Share this resource Send a link to Clean Cities: Related Financial Opportunities to someone by E-mail Share Clean Cities: Related Financial Opportunities on Facebook Tweet about Clean Cities: Related Financial Opportunities on Twitter Bookmark Clean Cities: Related Financial Opportunities on Google Bookmark Clean Cities: Related Financial Opportunities on Delicious Rank Clean Cities: Related Financial Opportunities on Digg Find More places to share Clean Cities: Related Financial Opportunities on AddThis.com... Current Opportunities Related Opportunities Funded Projects Related Financial Opportunities Transportation-related financial opportunities from organizations and federal agencies outside Clean Cities are listed below. Some of the

362

Underground reconnaissance and environmental monitoring related to geologic CO2 sequestration studies at the DUSEL Facility, Homestake Mine, South Dakota  

SciTech Connect

Underground field reconnaissance was carried out in the Deep Underground Science and Engineering Laboratory (DUSEL) to identify potential locations for the planned geologic carbon sequestration experimental facility known as DUSEL CO{sub 2}. In addition, instrumentation for continuous environmental monitoring of temperature, pressure, and relative humidity was installed at various locations within the Homestake mine. The motivation for this work is the need to locate and design the DUSEL CO{sub 2} facility currently being planned to host CO{sub 2} and water flow and reaction experiments in long column pressure vessels over large vertical length scales. Review of existing geologic data and reconnaissance underground revealed numerous potential locations for vertical experimental flow columns, with limitations of existing vertical boreholes arising from limited vertical extent, poor continuity between drifts, and small diameter. Results from environmental monitoring over 46 days reveal spatial and temporal variations related to ventilation, weather, and ongoing dewatering of the mine.

Dobson, Patrick F.; Salve, Rohit

2009-11-20T23:59:59.000Z

363

Correlation between Charge State of Insulating NaCl Surfaces and Ionic Mobility Induced by Water Adsorption: A Combined Ambient Pressure X-ray Photoelectron Spectroscopy and Scanning Force Microscopy Study  

SciTech Connect

In situ ambient pressure X-ray photoelectron spectroscopy (APPES) and scanning force microscopy were used to characterize the surface discharge induced by water layers grown on (001) surfaces of sodium chloride single crystals. The APPES studies show that both kinetic energy (KE) and full width at half-maximum (FWHM) of the Na 2s and Cl 2p core level peaks, monitored as a function of relative humidity (RH), mimic surface conductivity curves measured using scanning force microscopy. The KE position and FWHM of the core level peaks therefore are directly related to the solvation and diffusion of ions at the NaCl(100) surface upon adsorption of water.

Verdaguer, Albert; Jose Segura, Juan; Fraxedas, Jordi; Bluhm, Hendrik; Salmeron, Miquel

2008-09-03T23:59:59.000Z

364

DDI and Relational Databases  

E-Print Network (OSTI)

will use Access for modelling some examples during the workshop It is not an ideal solution for DDI as the database engine is quite limited as it is not fully ANSI-SQL compliant In reality you should use a ‘real’ SQL engine like e.g. MySQL Postgre... versions of DDI (e.g. DDI-L 3.0, 3.1, 3.2) and ensuring application compatibility with the original standard DDI Applications Pros of relational databases in regards to DDI Structure is very good for rectangular files (e.g. SPSS or Stata) Easier...

Amin, Alerk; Barkow, Ingo

2013-04-04T23:59:59.000Z

365

LTS Related Links - Hanford Site  

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

Information Management LTS Fact Sheets Briefings LTS Related Links LTS Contact Us 2015 Vision LTS Related Links Email Email Page | Print Print Page |Text Increase Font Size...

366

Related Links | Department of Energy  

Energy Savers (EERE)

Algal Biofuels Related Links Related Links The links below provide useful algae resources and are organized by categories. Beyond this page, learn more about BETO's Algae...

367

Related Opportunities | Department of Energy  

Office of Environmental Management (EM)

Financial Opportunities Related Opportunities Related Opportunities Funding for wind power projects may be available through other offices in the U.S. Department of Energy or...

368

IPP RH-TRU Waste Study - Summary  

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

for evaluation: releases by gas generation, groundwater transport, human intrusion and heat generation. Study Findings A summary of the important findings of the Remote-Handled...

369

Relational reasoning via SMT solving  

Science Journals Connector (OSTI)

This paper explores the idea of using a SAT Modulo Theories (SMT) solver for proving properties of relational specifications. The goal is to automatically establish or refute consistency of a set of constraints expressed in a first-order relational logic, ... Keywords: Alloy, SAT modulo theories, Z3, constraint solving, first-order relational logic, relational specification

Aboubakr Achraf El Ghazi; Mana Taghdiri

2011-06-01T23:59:59.000Z

370

Research Highlight  

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

Raman Lidar Observations of Aerosol Humidification Near Clouds Raman Lidar Observations of Aerosol Humidification Near Clouds Submitter: Ferrare, R. A., NASA - Langley Research Center Area of Research: Aerosol Properties Working Group(s): Aerosol Journal Reference: Ferrare, R., et al., Evaluation of Daytime Measurements of Aerosols and Water Vapor Made by an Operational Raman Lidar over the Southern Great Plains, J. Geophys. Res., 111, D05S08, doi:10.1029/2005JD005836, 2006. Relative humidity profiles derived from the Raman lidar during the ALIVE 2005 field experiment. Aerosol extinction profiles derived from the Raman lidar during the ALIVE 2005 field experiment. Aerosol humidification factor f(RH) from Raman lidar measured profiles of aerosol extinction and relative humidity. Upgrades to the Raman lidar at the ARM Climate Research Facility (ACRF)

371

1  

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

Improved Water Vapor Measurements Improved Water Vapor Measurements from ARM Radiosondes L. Miloshevich and A. J. Heymsfield National Center for Atmospheric Research Boulder, Colorado A. Paukkunen Vaisala Oy Helsinki, Finland Introduction Accurate radiosonde measurements of water vapor in the mid and upper troposphere are important for such applications as evaluating remote-sensor water vapor retrievals, initializing numerical models, and improving parameterizations of radiative and cloud processes. Measurements of relative humidity (RH) from Vaisala radiosondes are subject to several measurement errors, most of which increase in magnitude with decreasing temperature (Miloshevich et al. 2000). Several of these measurement errors have already been corrected in part of the Atmospheric Radiation Measurement (ARM) Program dataset

372

METEOROLOGY OF SO CLOUD REGIMES WORKSHOP ON SOUTHERN OCEAN CLOUDS & AND  

E-Print Network (OSTI)

regimes Regime meteorology Vertical pressure velocity Potential temperature Relative humidity Wind speed regimes Regime meteorology Vertical pressure velocity Potential temperature Relative humidity Wind speed Regime meteorology Vertical pressure velocity Potential temperature Relative humidity Wind speed

Jakob, Christian

373

Reduction relations for monoid semirings  

Science Journals Connector (OSTI)

In this paper we study rewriting techniques for monoid semirings. Based on disjoint and non-disjoint representations of the elements of monoid semirings we define two different reduction relations. We prove that in both cases the reduction relation describes ... Keywords: Confluence, Congruence, Critical pair, Reduction relation, Rewriting system, Semiring, Termination

Friedrich Otto; Olga Sokratova

2004-03-01T23:59:59.000Z

374

Clean Cities: Related Financial Opportunities  

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

Related Financial Opportunities Related Financial Opportunities Transportation-related financial opportunities from organizations and federal agencies outside Clean Cities are listed below. Some of the government agencies listed have ongoing funding available; others issue funding notices periodically or assist in forming partnerships that can provide funding opportunities for transportation-related projects. U.S. Department of Transportation Congestion Mitigation and Air Quality Improvement (CMAQ) Program: Administered by the Federal Highway Administration and the Federal Transit Administration, CMAQ funds projects and programs that reduce transportation-related emissions and relieve traffic congestion. Funds are distributed locally through metropolitan planning organizations.

375

Microbial Gas Generation Under Expected Waste Isolation Pilot Plant Repository Conditions: Final Report  

SciTech Connect

Gas generation from the microbial degradation of the organic constituents of transuranic (TRU) waste under conditions expected in the Waste Isolation Pilot Plant (WIPP) was investigated. The biodegradation of mixed cellulosic materials and electron-beam irradiated plastic and rubber materials (polyethylene, polyvinylchloride, hypalon, leaded hypalon, and neoprene) was examined. We evaluated the effects of environmental variables such as initial atmosphere (air or nitrogen), water content (humid ({approx}70% relative humidity, RH) and brine inundated), and nutrient amendments (nitogen phosphate, yeast extract, and excess nitrate) on microbial gas generation. Total gas production was determined by pressure measurement and carbon dioxide (CO{sub 2}) and methane (CH{sub 4}) were analyzed by gas chromatography; cellulose degradation products in solution were analyzed by high-performance liquid chromatography. Microbial populations in the samples were determined by direct microscopy and molecular analysis. The results of this work are summarized.

Gillow, J.B.; Francis, A.

2011-07-01T23:59:59.000Z

376

Public Relations for Energy Sustainability  

Office of Energy Efficiency and Renewable Energy (EERE)

This presentation covers the public relations aspect of industrial energy efficiency projects and provides a framework for engaging stakeholders productively around new projects.

377

The Public Relations of Science*  

Science Journals Connector (OSTI)

... Let me start by recalling certain changes in the relations of science to society that may help us see our present problems in historical perspective.

WESLEY C. MITCHELL

1940-02-10T23:59:59.000Z

378

QA TG5 UV, temperature and humidity  

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

Validating Reliability, Safety and Service Life", Intersolar 2012 Conf. *e.g., D. C. Jordan and S. R. Kurtz, "Photovoltaic Degradation Rates-an Analytical Review", PIP, 21 (1),...

379

(Dehumidification system for high humidity areas)  

SciTech Connect

The indoor swimming pool at Glen Cove YMCA, Glen Cove, New York, installed a dehumidification and water heating system. This report is the specifications of the new system, which includes dehumidifier/air handler, condenser/water heater, and outdoor condenser. (JF)

Stark, W.

1990-10-26T23:59:59.000Z

380

Development of a Humid Climate Definition  

E-Print Network (OSTI)

levels. The buildings modeled were a retail store (similar to a K-Mart or Wal-Mart), a large office building, and a fast food restaurant. Existing building models were employed for this study with ventilation rates in accordance with ASHRAE Don B.... 1 Kitchen I 1 ROO^ U-value, ~tu/ft~- OF (WI~~.T) I 0.07 (0.40j 0.07 (0.40j I 0.07 (0.40j Glazing Characteristics: I I Percent Glass in Exterior Walls (%, avg.) 25 (equally distributed) 1 2.7 (south entrance only) I 2 1 Glass Type ( Double...

Hedrick, R. L.; Shirey, D. B.

1998-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "relative humidity rh" 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

Boundaries for Biofilm Formation: Humidity and Temperature  

Science Journals Connector (OSTI)

...Yucca Mountain is located at the Nevada Test Site, 100 miles northwest of Las...oxygenated volcanic tuff at the Nevada Test Site (1, 10, 11). When native...exist in the rock and soil of the Nevada Test Site (5, 16, 21). Studies by...

Terry Ann Else; Curtis R. Pantle; Penny S. Amy

2003-08-01T23:59:59.000Z

382

Group 3: Humidity, Temperature, and Voltage  

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

h ardest test for m ost PV module m anufacturers to pass. * Even when you did pass damp heat the power loss was usuall approaching the 5% limit. * When wet hi---pot test was a...

383

Comparing Wind, Temperature, Pressure, and Humidity  

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

the higher the amount of energy in the air. Temperature is measured using a thermometer with units in degrees Celsius or Fahrenheit. See http:www.teachervision.com...

384

Relative Permeability of Fractured Rock  

E-Print Network (OSTI)

, and by the Department of Petroleum Engineering, Stanford University Stanford Geothermal Program Interdisciplinary Research in Engineering and Earth Sciences STANFORD UNIVERSITY Stanford, California #12;#12;v Abstract fractures and various fluids have yielded different relative permeability-saturation relations. This study

Stanford University

385

Human Radiation Experiments: Related Sites  

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

Experiment Experiment Related Sites Related Links Home Roadmap What's New Search HREX Multimedia Related Sites Federal DOE DOE Sites & National Laboratories Federal Other The following are organizations which provide related information and links to databases, electronic documents, and servers. FEDERAL - DOE U.S. Department of Energy (DOE) homepage (http://www.doe.gov/)contains information on DOE's Departmental Resources, Programs, Offices, National Labs and other DOE related topics. DOE's Environment, Safety and Health (ES&H) Technical Information Services (TIS) homepage (http://nattie.eh.doe.gov/) is a collection of information services designed to provide safety and health professionals with reliable, accurate and current information to assist them in performing their jobs.

386

Relative outcomes of climate change mitigation related to global  

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

Relative outcomes of climate change mitigation related to global Relative outcomes of climate change mitigation related to global temperature versus sea-level rise Submitted by mkaczmar on February 8, 2013 - 15:19 Authors: Gerald A. Meehl, Aixue Hu, Claudia Tebaldi, Julie M. Arblaster, Warren M. Washington, Haiyan Teng, Benjamin M. Sanderson, Toby Ault, Warren G. Strand & James B. White III There is a common perception that, if human societies make the significant adjustments necessary to substantively cut emissions of greenhouse gases, global temperature increases could be stabilized, and the most dangerous consequences of climate change could be avoided. Here we show results from global coupled climate model simulations with the new representative concentration pathway mitigation scenarios to 2300 to illustrate that, with

387

The Decay of Rh104m (4.3 Min) and Rh104 (44 Sec)  

Science Journals Connector (OSTI)

The radiations of neutron-activated rhodium are studied with 180° constant field conversion electron spectrometers and a gamma-ray scintillation spectrometer. Internal conversion electrons are observed to be associated with the 4.3-minute activity. These are interpreted as arising from two isomeric transitions of 51.1±0.2 and 77.2±0.2 kev in rhodium. By coincidence studies these two transitions are shown to be in cascade. The character of the radiations, as determined from the KL ratios and lifetime considerations, appears to be M1 and E3, respectively. Additional gamma-rays of energy 550±10 kev and ?1.2 Mev (weak) are observed with the scintillation spectrometer. The 550-kev transition is associated with both the 44-second and the 4.3-minute periods and is assumed to follow the beta-decay and hence be in Pd104.

W. C. Jordan; J. M. Cork; S. B. Burson

1953-06-01T23:59:59.000Z

388

IMpRH Server: an RH mapping server available on the Web  

Science Journals Connector (OSTI)

......tools on the Web is a crucial point for a wide use of these panels. In humans for instance, the Stanford web site (http://shgc-www. stanford.edu) provides on line tools to map a new marker, whereas the RHdb web site (http://corba.ebi.ac......

Denis Milan; Rachel Hawken; Cédric Cabau; Sophie Leroux; Carine Genet; Yvette Lahbib; Gwenola Tosser; Annie Robic; Francois Hatey; Lee Alexander; Craig Beattie; Larry Schook; Martine Yerle; Joël Gellin

2000-06-01T23:59:59.000Z

389

Z .Diamond and Related Materials 10 2001 364 369 Experimental data vs. 3-D model calculations of HFCVD  

E-Print Network (OSTI)

rH and3 4 2 C H rH process gas mixtures and to examine in detail the process of C lC inter-conversion between C and C hydrocar-2 1 bon species in the gas phase. Another important con- Zsideration in the gas phase. It has been2 2 2 2 1 shown that cooler regions distant from the filament need

Bristol, University of

390

Related Links | Department of Energy  

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

Related Links Related Links Related Links November 1, 2013 - 11:40am Addthis Need additional help or more information? DOE's CHP Technical Assistance Partnerships (CHP TAPs) provide local, individualized solutions to customers on specific combined heat and power (CHP) projects. Partners of DOE's CHP Program include federal and state agencies, non-governmental organizations, international entities, private clean energy companies, technology developers, and commercial builders and developers. Partners American Council for an Energy-Efficient Economy (ACEEE) Argonne National Laboratory (ANL) CHP Association International District Energy Association (IDEA) International Energy Agency (IEA) National Energy Technology Laboratory (NETL) New York State Energy Research and Development Authority (NYSERDA)

391

NREL: Energy Analysis - Related Links  

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

Related Links Related Links Here you'll find links to other programs, organizations, and information resources concerning other analysis capabilities, energy-modeling, and technology expertise related to renewable energy. International Applications NREL's International Program in its effort to promote the use of renewable energy as a tool for sustainable development, applies world-class expertise in technology development and deployment, economic analysis, resource assessment, project design and implementation, and policy formulation. Assisting State and Local Governments Using renewable energy and being energy efficient is smart. Not only does it protect the environment, it benefits the economy. Many mayors, governors, city/county commissioners, state legislators, state energy

392

Land Use in Relation to Sedimentation in Reservoirs : Trinity River Basin, Texas.  

E-Print Network (OSTI)

"Major Soil Group Areas", flows successively through seven physiographic divisions; namely, West Cross Timbers, Grand Prairie, East Cross Timbers, Blackland Prairie, Gulf Coastal Plain, Coastal Flatwoods and Coastal Prairie. Each of these physiographic.... The northwestern part is dominated by the grazing and ranching type of land-use. The portion of the watershed west of Fort Worth lies in the sub-humid climatic zone, while the remainder of the watershed becomes progressively more humid toward the Gulf Coast...

Gabbard, L. P. (Letcher P.); Garin, Alexis N.

1941-01-01T23:59:59.000Z

393

Employee Relations | Department of Energy  

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

Employee Relations Employee Relations Employee Relations Addressing Poor Performance What happens if an Employee's Performance is Below the Meets Expectations (ME) level? Any time during the appraisal period an employee demonstrates that he/she is performing below the ME level in at least one critical element, the Rating Official should contact his/her Human Resources Office for guidance and: If performance is at the Needs Improvement (NI) level; issue the employee a Performance Assistance Plan (PAP); or If performance is at the Fails to Meet Expectations (FME) level; issue the employee a Performance Improvement Plan (PIP). Workforce Discipline The Headquarters Employee and Labor Relations Division provides guidance and assistance to Management on Work Force Discipline. The DOE Order

394

Related Links | Department of Energy  

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

Related Links Related Links Related Links Private, public, and nonprofit organizations around the country offer a wide range of courses and other services to help you either improve your current skills or learn new ones. The sites featured here can help you find courses of specific interest as well as other information about training requirements for certain energy jobs. DOE Related Advanced Manufacturing Office: Training Find training sessions in your area and learn how to save energy in your manufacturing plant or commercial building. American Museum of Science & Energy Learn more about the American Museum of Science & Energy (AMSE), a DOE-sponsored museum in Oak Ridge, TN, that provides cultural, educational, and scientific programs and exhibits, as well as summer camps for kids.

395

NEPA-Related Public Involvement  

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

The Loan Programs Office’s NEPA-related hearings, public meetings, and public notices (e.g. public scoping meeting, public hearing, notice of proposed floodplain or wetland action) are presented...

396

International Relations and Development Studies  

E-Print Network (OSTI)

& Anthropology and Languages (choice of French, Arabic, German, Italian or Spanish) The International Relations Economy, Languages (French, Spanish, Arabic, German, Italian), International Trade, Middle East Politics experience a broad range of opportunities outside the classroom: - Explore exchange opportunities with dozens

397

Labor Relations | Department of Energy  

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

Labor Relations Labor Relations Labor Relations Department of Energy Headquarters and The National Treasury Employees Union (NTEU) Collective Bargaining Agreement The National Treasury Employees Union (NTEU) is the exclusive representative of bargaining unit employees at the Department of Energy Headquarters offices in the Washington DC metropolitan area. The terms and conditions of this agreement have been negotiated by DOE and NTEU, and prescribe their respective rights and obligations in matters related to conditions of employment. Headquarters 1187 Request For Payroll Deductions For Labor Organization Dues The Request for Payroll Deduction for Labor Organization Dues (SF-1187) permits eligible employees, who are members of the National Treasury Employees Union (NTEU), to authorize voluntary allotments from their

398

Commutation Relations and Conservation Laws  

Science Journals Connector (OSTI)

The response of a physical system to external electromagnetic and gravitational fields, as embodied in the electric current and stress tensor conservation laws, is used to derive the equal-time commutation relations for charge density and energy density.

Julian Schwinger

1963-04-01T23:59:59.000Z

399

The Baryonic Tully Fisher Relation  

E-Print Network (OSTI)

We validate the baryonic Tully Fisher (BTF) relation by exploring the Tully Fish er (TF) and BTF properties of optically and HI-selected disk galaxies. The data includes galaxies from: Sakai et al. (2000) calibrator sample; McGaugh et al. (2000: MC2000) I-band sample; and 18 newly acquired HI-selected field dwarf galaxies observed with the ANU 2.3m telescope and the ATNF Parkes telescope from Gurovich's thesis sample (2005). As in MC2000, we re-cast the TF and BTF relations as relationships between baryo n mass and W_{20}. First we report some numerical errors in MC2000. Then, we c alculate weighted bi-variate linear fits to the data, and finally we compare the fits of the intrinsically fainter dwarfs with the brighter galaxies of Sakai et al. (2000). With regards to the local calibrator disk galaxies of Sakai et al. (2000), our results suggest that the BTF relation is indeed tighter than the T F relation and that the slopes of the BTF relations are statistically flatter th an the equivalent TF relations. Further, for the fainter galaxies which include the I-band MCG2000 and HI-selected galaxies of Gurovich's thesis sample, we calc ulate a break from a simple power law model because of what appears to be real c osmic scatter. Not withstanding this point, the BTF models are marginally better models than the equivalent TF ones with slightly smaller reduced chi^2.

Sebastian Gurovich; Stacy S. McGaugh; Ken C. Freeman; Helmut Jerjen; Lister Staveley-Smith; W. J. G. De Blok

2004-11-17T23:59:59.000Z

400

EIA - Related Links for Transportation  

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

Transportation Related Links Transportation Related Links Transportation Related Links government reports, data, and web sites (sorted alphabetically by primary agency) Date Last Updated/Reviewed: December 2006 Next Update/Review: April 2007 Federal and International Agencies and Institutes International Energy Agency (IEA) Dealing with Climate Change The International Energy Agency's »Dealing with Climate Change« database of policies and measures now features 2005 revisions and developments. The database has expanded to include more than 1400 records of the climate policy process in the IEA's 26 Member Countries since 1999. Member country governments have reviewed and endorsed the policies listed, reinforcing the informative value and authority of the database. The database is freely accessible online.

Note: This page contains sample records for the topic "relative humidity rh" 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

Stakeholder Relations | Department of Energy  

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

Stakeholder Relations Stakeholder Relations Stakeholder Relations Site tours, like this one near Rifle, Colorado, allow stakeholders to learn more about LM projects. Site tours, like this one near Rifle, Colorado, allow stakeholders to learn more about LM projects. Public meetings give stakeholders an opportunity to gain information about DOE and LM activities. This public meeting was held in Riverton, Wyoming. Public meetings give stakeholders an opportunity to gain information about DOE and LM activities. This public meeting was held in Riverton, Wyoming. Site tours, like this one near Rifle, Colorado, allow stakeholders to learn more about LM projects. Public meetings give stakeholders an opportunity to gain information about DOE and LM activities. This public meeting was held in Riverton, Wyoming.

402

Reciprocal Relations Between Kinetic Curves  

E-Print Network (OSTI)

We study coupled irreversible processes. For linear or linearized kinetics with microreversibility, $\\dot{x}=Kx$, the kinetic operator $K$ is symmetric in the entropic inner product. This form of Onsager's reciprocal relations implies that the shift in time, $\\exp (Kt)$, is also a symmetric operator. This generates reciprocity relations between kinetic curves. For example, for the Master equation, if we start the process from the $i$th pure state and measure the probability $p_j(t)$ of the $j$th state ($j\

Yablonsky, G S; Constales, D; Galvita, V; Marin, G B

2010-01-01T23:59:59.000Z

403

Synthesis, structure, and reactivity of high oxidation state silver fluorides and related compounds  

SciTech Connect

This thesis has been largely concerned with defining the oxidizing power of Ag(III) and Ag(II) in anhydrous hydrogen fluoride (aHF) solution. Emphasis was on cationic species, since in a cation the electronegativity of a given oxidation state is greatest. Cationic Ag(III) solv has a short half life at ordinary temperatures, oxidizing the solvent to elemental fluorine with formation of Ag(II). Salts of such a cation have not yet been preparable, but solutions which must contain such a species have proved to be effective and powerful oxidizers. In presence of PtF{sub 6}{sup {minus}}, RuF{sub 6}{sup {minus}}, or RhF{sub 6}{sup {minus}}, Ag(III) solv effectively oxidizes the anions to release the neutral hexafluorides. Such reactivity ranks cationic Ag(III) as the most powerfully oxidizing chemical agent known as far. Unlike its trivalent relative Ag (II) solv is thermodynamically stable in acid aHF. Nevertheless, it oxidizes IrF{sub 6}{sup {minus}} to IrF{sub 6} at room temperature, placing its oxidizing potential not more than 2 eV below that of cationic Ag(III). Range of Ag{sup 2+} (MF{sub 6}{sup {minus}}){sub 2} salts attainable in aHF has been explored. An anion must be stable with respect to electron loss to Ag{sup 2+}. The anion must also be a poor F{sup {minus}} donor; otherwise, either AgF{sup +} salts or AgF{sub 2} are generated.

Lucier, G.M.

1995-05-01T23:59:59.000Z

404

Mercury-Related Materials Studies  

E-Print Network (OSTI)

Mercury-Related Materials Studies Van Graves IDS NF Ph M tiIDS-NF Phone Meeting Jan 26, 2010 #12 Evaluation of Cavitation Resistance of Type 316LN Stainless Steel in Mercury Using a Vibratory Horn," J. Nucl Pump Impeller Materials for Mercury Service at the Spallation Neutron Source," Oak Ridge National

McDonald, Kirk

405

Nicole Slevin Marketing & Public Relations  

E-Print Network (OSTI)

Nicole Slevin Marketing & Public Relations nas96@cornell.edu 64 Ferndale-Loomis Rd Liberty, NY Project Opportunity CALLICOON, NY--Sullivan County families, youth, and land owners are invited to explore in Callicoon, NY. Youth interested in becoming involved in a livestock educational project or families

Keinan, Alon

406

Mercury-Related Materials Studies  

E-Print Network (OSTI)

. Pawel, "Assessment of Cavitation-Erosion Resistance of Potential Pump Impeller Materials for MercuryMercury-Related Materials Studies Van Graves IDS NF Ph M tiIDS-NF Phone Meeting Jan 26, 2010 ­ updated Feb 3, 2010 #12;ORNL Material Reports Reviewed · IDS-NF requested ORNL research any past SNS

McDonald, Kirk

407

General Relativity Today Thibault DAMOUR  

E-Print Network (OSTI)

relativity. For Newton's law of gravitation, this task was begun (before Einstein had even supplied his) the post-Newtonian limit and weak-field tests in the solar system, (ii) strong gravitational fields and black holes, (iii) strong-field and radiative tests in binary pulsar observations, (iv) gravitational

Damour, Thibault

408

RELATED LINKS Green Technology for  

E-Print Network (OSTI)

have been certified to the National Green Building Standard, which was approved earlier this year by the American National Standards Institute. Preferences for specific green building techniques are decidedlyRELATED LINKS Green Technology for 2009: See the Photos Green Building: Getting Past the Media Hype

409

PHOTOSYNTHESIS AND RELATED PROCESSES, I  

E-Print Network (OSTI)

and Related Processes By EUGENE I. RABINOWITCH Research Associate, Solar Energy Conversion Research Project by a particular sensitivity to all factors which interfere with the normal life processes in the plant by an extraordinarily large con- sumption of energy, and the consequent necessity for a mechanism which would permit

Govindjee

410

Institutions Related to Berkeley Lab  

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

Institutions Related to Berkeley Laboratory Institutions Related to Berkeley Laboratory DOE logo Office of Science logo UC seal Berkeley Lab logo University of California Department of Energy (DOE) and DOE National Laboratories NERSC (National Energy Research Scientific Computing Center) ESnet Stanford Linear Accelerator Center (SLAC) Lawrence Livermore National Laboratory Los Alamos National Laboratory High Energy Physics Information Center U.S. Government University of California UC Berkeley UC Berkeley colleges, schools, and teaching units The Daily Cal independent student newspaper at UC Berkeley. University of California campuses and labs UC Office of the President UC National Laboratories provides news and information on UC's management of three DOE laboratories -- Lawrence Berkeley National Laboratory, Lawrence Livermore National Laboratory, and Los Alamos National

411

Relative Ages of Globular Clusters  

E-Print Network (OSTI)

Ages of extragalactic globular clusters can provide valuable insights into the formation and evolution of galaxies. In this contribution the photometric methods of age dating old globular cluster systems are summarised. The spectroscopic approach is reviewed with an emphasis of the right choice of age diagnostics. We present a new method of quantifying the relatively best age-sensitive spectroscopic index given the quality of a data set and a certain theoretical stellar synthesis model. The relatively best diagnostic plot is constructed from the set of Lick indices and used to age date globular clusters in several early-type galaxies which are part of a large spectroscopic survey of extragalactic globular cluster systems. We find that, independently of host galaxy, metal-poor ([Fe/H] 8 Gyr) and coeval. Metal-rich clusters show a wide range of ages from ~15 down to a few Gyr.

Thomas H. Puzia

2002-10-18T23:59:59.000Z

412

Better Buildings Neighborhood Program: Related Federal Programs  

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

About About Printable Version Share this resource Send a link to Better Buildings Neighborhood Program: Related Federal Programs to someone by E-mail Share Better Buildings Neighborhood Program: Related Federal Programs on Facebook Tweet about Better Buildings Neighborhood Program: Related Federal Programs on Twitter Bookmark Better Buildings Neighborhood Program: Related Federal Programs on Google Bookmark Better Buildings Neighborhood Program: Related Federal Programs on Delicious Rank Better Buildings Neighborhood Program: Related Federal Programs on Digg Find More places to share Better Buildings Neighborhood Program: Related Federal Programs on AddThis.com... Our History Related Federal Programs Why Energy Efficiency Upgrades Contacts Related Federal Programs Related Links

413

EXAMINING THE SPECTROSCOPY OF WATER VAPOR IN THE ATMOSPHERE  

E-Print Network (OSTI)

Compare to relative humidity probe Describes VCSEL accuracy #12;FLOW DILUTION SYSTEM Critical Orifice

Petta, Jason

414

The relative effectiveness of two systems of breeding for high and low fiber strength in cotton  

E-Print Network (OSTI)

-. -H SU S3 3 o lgh .S3 -H Td 0 a. 0 p cd i?I o su S-. o 0 01 U0 p G cd S-. cd 43 o o rH O cD CD O cD 43 p GO S30 s-. p 03 0 .rQ ?HI cr> I?1...

Fetooh, Anwar Abdel-Bary

2013-10-04T23:59:59.000Z

415

Accelerator experiments contradicting general relativity  

E-Print Network (OSTI)

The deflection of gamma-rays in Earth's gravitational field is tested in laser Compton scattering at high energy accelerators. Within a formalism connecting the bending angle to the photon's momentum it follows that detected gamma-ray spectra are inconsistent with a deflection magnitude of 2.78 nrad, predicted by Einstein's gravity theory. Moreover, preliminary results for 13-28 GeV photons from two different laboratories show opposite - away from the Earth - deflection, amounting to 33.8-0.8 prad. I conclude that general relativity, which describes gravity at low energies precisely, break down at high energies.

Vahagn Gharibyan

2014-07-12T23:59:59.000Z

416

Factors Affecting the Hydrogen Environment Assisted Cracking Resistance of an Al-Zn-Mg-(Cu) Alloy  

SciTech Connect

It is well established that Al-Zn-Mg-(Cu) aluminum alloys are susceptible to hydrogen environment assisted cracking (HEAC) when exposed to aqueous environments. In Al-Zn-Mg-Cu alloys, overaged tempers are commonly used to increase HEAC resistance at the expense of strength. Overaging has little benefit in low copper alloys. However, the mechanism or mechanisms by which overaging imparts HEAC resistance is poorly understood. The present research investigated hydrogen uptake, diffusion, and crack growth rate in 90% relative humidity (RH) air for both a commercial copper bearing Al-Zn-Mg-Cu alloy (AA 7050) and a low copper variant of this alloy in order to better understand the factors which affect HEAC resistance. Experimental methods used to evaluate hydrogen concentrations local to a surface and near a crack tip include nuclear reaction analysis (NRA), focused ion beam, secondary ion mass spectroscopy (FIB/SIMS) and thermal desorption spectroscopy (TDS). When freshly bared coupons of AA 7050 are exposed to 90 C, 90% RH air, hydrogen ingress follows inverse-logarithmic-type kinetics and is equivalent for underaged (HEAC susceptible) and overaged (HEAC resistant) tempers. However, when the native oxide is allowed to form (24 hrs in 25 C, 40% RH lab air) prior to exposure to 90 C, 90% RH air, underaged alloy shows significantly greater hydrogen ingress than the overaged alloy. Humid air is a very aggressive environment producing local ({approx}1{micro}m) hydrogen concentrations in excess of 10,000 wt. ppm at 90 C. In the copper bearing alloy, overaging also effects the apparent diffusivity of hydrogen. As AA 7050 is aged from underaged {yields} peak aged {yields} overaged, the activation energy for hydrogen diffusion increases and the apparent diffusivity for hydrogen decreases, In the low copper alloy, overaging has little effect on hydrogen diffusion. Comparison of the apparent activation energies for hydrogen diffusion and for K independent (stage II) crack growth rate in 90% RH air between 25 and 90 C indicates that hydrogen transport kinetics are responsible for the decreased crack growth rate of overaged AA 7050 relative to the peak aged temper.

G.A. Young; J.R. Scully

2001-09-12T23:59:59.000Z

417

Alternative Fuels Data Center: Electricity Related Links  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Electricity Electricity Printable Version Share this resource Send a link to Alternative Fuels Data Center: Electricity Related Links to someone by E-mail Share Alternative Fuels Data Center: Electricity Related Links on Facebook Tweet about Alternative Fuels Data Center: Electricity Related Links on Twitter Bookmark Alternative Fuels Data Center: Electricity Related Links on Google Bookmark Alternative Fuels Data Center: Electricity Related Links on Delicious Rank Alternative Fuels Data Center: Electricity Related Links on Digg Find More places to share Alternative Fuels Data Center: Electricity Related Links on AddThis.com... More in this section... Electricity Basics Production & Distribution Research & Development Related Links Benefits & Considerations Stations

418

Classifying Agent Behaviour through Relational Sequential Patterns  

E-Print Network (OSTI)

Classifying Agent Behaviour through Relational Sequential Patterns Grazia Bombini, Nicola Di Mauro. Di Mauro, S. Ferilli, F. Esposito frequent patterns, among the relational sequences useful

Di Mauro, Nicola

419

8.962 General Relativity, Spring 2002  

E-Print Network (OSTI)

This course covers the basic principles of Einstein's general theory of relativity. Also discussed are differential geometry, experimental tests of general relativity, black holes, and cosmology.

Bertschinger, Edmund W.

420

Related Financial Opportunities | Department of Energy  

Energy Savers (EERE)

for hydrogen-related technologies. The Hydrogen and Fuel Cells Interagency Working Group Web site lists some of these related financial opportunities. In addition, federal and...

Note: This page contains sample records for the topic "relative humidity rh" 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

Related Links | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

About Us Our Programs Defense Programs Future Science & Technology Programs Advanced Simulation and Computing and Institutional R&D Programs Related Links Related Links...

422

Voluntary Protection Program - Related Links | Department of...  

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

- Related Links Voluntary Protection Program - Related Links VPPPA - The Voluntary Protection Programs Participants' Association, a non- profit organization is leading the way in...

423

Alternative Fuels Data Center: Biodiesel Related Links  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Biodiesel Biodiesel Printable Version Share this resource Send a link to Alternative Fuels Data Center: Biodiesel Related Links to someone by E-mail Share Alternative Fuels Data Center: Biodiesel Related Links on Facebook Tweet about Alternative Fuels Data Center: Biodiesel Related Links on Twitter Bookmark Alternative Fuels Data Center: Biodiesel Related Links on Google Bookmark Alternative Fuels Data Center: Biodiesel Related Links on Delicious Rank Alternative Fuels Data Center: Biodiesel Related Links on Digg Find More places to share Alternative Fuels Data Center: Biodiesel Related Links on AddThis.com... More in this section... Biodiesel Basics Blends Production & Distribution Specifications Related Links Benefits & Considerations Stations Vehicles Laws & Incentives

424

Alternative Fuels Data Center: Hydrogen Related Links  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Hydrogen Hydrogen Printable Version Share this resource Send a link to Alternative Fuels Data Center: Hydrogen Related Links to someone by E-mail Share Alternative Fuels Data Center: Hydrogen Related Links on Facebook Tweet about Alternative Fuels Data Center: Hydrogen Related Links on Twitter Bookmark Alternative Fuels Data Center: Hydrogen Related Links on Google Bookmark Alternative Fuels Data Center: Hydrogen Related Links on Delicious Rank Alternative Fuels Data Center: Hydrogen Related Links on Digg Find More places to share Alternative Fuels Data Center: Hydrogen Related Links on AddThis.com... More in this section... Hydrogen Basics Production & Distribution Research & Development Related Links Benefits & Considerations Stations Vehicles Laws & Incentives

425

Alternative Fuels Data Center: Ethanol Related Links  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Ethanol Ethanol Printable Version Share this resource Send a link to Alternative Fuels Data Center: Ethanol Related Links to someone by E-mail Share Alternative Fuels Data Center: Ethanol Related Links on Facebook Tweet about Alternative Fuels Data Center: Ethanol Related Links on Twitter Bookmark Alternative Fuels Data Center: Ethanol Related Links on Google Bookmark Alternative Fuels Data Center: Ethanol Related Links on Delicious Rank Alternative Fuels Data Center: Ethanol Related Links on Digg Find More places to share Alternative Fuels Data Center: Ethanol Related Links on AddThis.com... More in this section... Ethanol Basics Blends Specifications Production & Distribution Feedstocks Related Links Benefits & Considerations Stations Vehicles Laws & Incentives

426

Poly(cyclohexadiene)-Based Polymer Electrolyte Membranes for Fuel Cell Applications  

SciTech Connect

The goal of this research project was to create and develop fuel cell membranes having high proton conductivity at high temperatures and high chemical and mechanical durability. Poly(1,3-cyclohexadiene) (PCHD) is of interest as an alternative polymer electrolyte membrane (PEM) material due to its ring-like structure which is expected to impart superior mechanical and thermal properties, and due to the fact that PCHD can readily be incorporated into a range of homopolymer and copolymer structures. PCHD can be aromatized, sulfonated, or fluorinated, allowing for tuning of key performance structure and properties. These factors include good proton transport, hydrophilicity, permeability (including fuel gas impermeability), good mechanical properties, morphology, thermal stability, crystallinity, and cost. The basic building block, 1,3-cyclohexadiene, is a hydrocarbon monomer that could be inexpensively produced on a commercial scale (pricing typical of other hydrocarbon monomers). Optimal material properties will result in novel low cost PEM membranes engineered for high conductivity at elevated temperatures and low relative humidities, as well as good performance and durability. The primary objectives of this project were: (1) To design, synthesize and characterize new non-Nafion PEM materials that conduct protons at low (25-50%) RH and at temperatures ranging from room temperature to 120 C; and (2) To achieve these objectives, a range of homopolymer and copolymer materials incorporating poly(cyclohexadiene) (PCHD) will be synthesized, derivatized, and characterized. These two objectives have been achieved. Sulfonated and crosslinked PCHD homopolymer membranes exhibit proton conductivities similar to Nafion in the mid-RH range, are superior to Nafion at higher RH, but are poorer than Nafion at RH < 50%. Thus to further improve proton conductivity, particularly at low RH, poly(ethylene glycol) (PEG) was incorporated into the membrane by blending and by copolymerization. Conductivity measurements at 120 C over RH ranging from 20 to 100% using the BekkTech protocol showed much improved proton conductivities. Conductivities for the best of these new membranes exceed the DOE Year 3 milestone of 100 mS/cm at 50% RH at 120 C. Further optimization of these very promising low cost membranes could be pursued in the future.

Mays, Jimmy W.

2011-03-07T23:59:59.000Z

427

Sensor Development for PEM Fuel Cell Systems  

SciTech Connect

This document reports on the work done by Honeywell Sensing and Control to investigate the feasibility of modifying low cost Commercial Sensors for use inside a PEM Fuel Cell environment. Both stationary and automotive systems were considered. The target environment is hotter (100 C) than the typical commercial sensor maximum of 70 C. It is also far more humid (100% RH condensing) than the more typical 95% RH non-condensing at 40 C (4% RH maximum at 100 C). The work focused on four types of sensors, Temperature, Pressure, Air Flow and Relative Humidity. Initial design goals were established using a market research technique called Market Driven Product Definition (MDPD). A series of interviews were conducted with various users and system designers in their facilities. The interviewing team was trained in data taking and analysis per the MDPD process. The final result was a prioritized and weighted list of both requirements and desires for each sensor. Work proceeded on concept development for the 4 types of sensors. At the same time, users were developing the actual fuel cell systems and gaining knowledge and experience in the use of sensors and controls systems. This resulted in changes to requirements and desires that were not anticipated during the MDPD process. The concepts developed met all the predicted requirements. At the completion of concept development for the Pressure Sensor, it was determined that the Fuel Cell developers were happy with off-the-shelf automotive pressure sensors. Thus, there was no incentive to bring a new Fuel Cell Specific Pressure Sensor into production. Work was therefore suspended. After the experience with the Pressure Sensor, the requirements for a Temperature Sensor were reviewed and a similar situation applied. Commercially available temperature sensors were adequate and cost effective and so the program was not continued from the Concept into the Design Phase.

Steve Magee; Richard Gehman

2005-07-12T23:59:59.000Z

428

Degenerate Extensions of General Relativity  

E-Print Network (OSTI)

General relativity has previously been extended to incorporate degenerate metrics using Ashtekar's hamiltonian formulation of the theory. In this letter, we show that a natural alternative choice for the form of the hamiltonian constraints leads to a theory which agrees with GR for non-degenerate metrics, but differs in the degenerate sector from Ashtekar's original degenerate extension. The Poisson bracket algebra of the alternative constraints closes in the non-degenerate sector, with structure functions that involve the {\\it inverse} of the spatial triad. Thus, the algebra does {\\it not} close in the degenerate sector. We find that it must be supplemented by an infinite number ofsecondary constraints, which are shown to be first class (although their explicit form is not worked out in detail). All of the constraints taken together are implied by, but do not imply, Ashtekar's original form of constraints. Thus, the alternative constraints give rise to a different degenerate extension of GR. In the corresponding quantum theory, the single loop and intersecting loop holonomy states found in the connection representation satisfy {\\it all} of the constraints. These states are therefore exact (formal) solutions to this alternative degenerate extension of quantum gravity, even though they are {\\it not} solutions to the usual vector constraint.

Ted Jacobson; Joseph D. Romano

1992-07-23T23:59:59.000Z

429

A Case for Lorentzian Relativity  

E-Print Network (OSTI)

The Lorentz transformation (LT) is explained by changes occurring in the wave characteristics of matter as it changes inertial frame. This explanation is akin to that favoured by Lorentz, but informed by later insights, due primarily to de Broglie, regarding the underlying unity of matter and radiation. To show the nature of these changes, a massive particle is modelled as a standing wave in three dimensions. As the particle moves, the standing wave becomes a travelling wave having two factors. One is a carrier wave displaying the dilated frequency and contracted ellipsoidal form described by the LT, while the other (identified as the de Broglie wave) is a modulation defining the dephasing of the carrier wave (and thus the failure of simultaneity) in the direction of travel. The superluminality of the de Broglie wave is thus explained, as are several other mysterious features of the optical behaviour of matter, including the physical meaning of the Schr\\"odinger Eqn. and the relevance to scattering processes of the de Broglie wave number. Consideration is given to what this Lorentzian approach to relativity might mean for the possible existence of a preferred frame and the origin of the observed Minkowski metric.

Daniel Shanahan

2014-10-02T23:59:59.000Z

430

Effect of Key Parameters on the Photocatalytic Oxidation of Toluene at Low Concentrations in Air under 254 + 185 nm UV Irradiation  

SciTech Connect

The effect of key experimental parameters on the removal of toluene under 254 + 185 nm irradiation was investigated using a benchtop photocatalytic flow reactor. Toluenewas introduced at low concentrations between 10 and 500 ppbv, typical of indoorenvironments, and reacted on TiO2-coated Raschig rings. Two different TiO2-coated rings were prepared: in one case, by dip-coating using a P25 aqueous suspension and, on the other, using an organic/inorganic sol-gel method that produced thin films of mesoporous anatase. Flow rates in the photoreactor varied between 4 L min-1 and 125 mL min-1, leading to residence times in the range 100 ms< tau< 2 s. For these conditions, toluene removal efficiencies were between 30 and 90percent, indicating that the system did not achieve total conversion in any case. For each air flow rate, the conversion oftoluene was significantly higher when the reactor length was 10 cm, as compared with 5 cm; however, only marginal increases in conversions were achieved in the two reactor lengths at equal residence time and different concentration of toluene, suggesting that that the reactor is effectively behaving as an ideal reactor and that the reaction is first-order in the concentration of toluene. Experiments were carried out between 0 and 66percent relative humidity (RH), the fastest reaction rate being observed at moderately low humidity conditions (10percent RH), with respect to both dry air and higher humidity levels. Formaldehyde was formed as a partial oxidation byproduct at low and at high residence times (240 and 960 ms), although higher formaldehyde molar yields (up to 20percent) were observed at low tau (240 ms) and moderate humidity conditions (10 and 33percent), suggesting that both tau and RH can be optimized toreduce the formation of harmful intermediates. Toluene removal efficiency increased with the TiO2 thickness (i.e., mass) until a maximum value of 500 nm, beyond which the removal efficiency decreased. This should be attributed to limitations on the rates of toluene decomposition imposed by radiation transport through the film and/or internal diffusion resistances, which can take place within the porous photocatalytic films.

Quici, Natalia; Vera, Maria L.; Choi, Hyeok; Puma, Gianluca Li; Dionysiou, Dionysios D.; Litter, Marta I.; Destaillats, Hugo

2009-07-01T23:59:59.000Z

431

Alternative Fuels Data Center: Propane Related Links  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Propane Propane Printable Version Share this resource Send a link to Alternative Fuels Data Center: Propane Related Links to someone by E-mail Share Alternative Fuels Data Center: Propane Related Links on Facebook Tweet about Alternative Fuels Data Center: Propane Related Links on Twitter Bookmark Alternative Fuels Data Center: Propane Related Links on Google Bookmark Alternative Fuels Data Center: Propane Related Links on Delicious Rank Alternative Fuels Data Center: Propane Related Links on Digg Find More places to share Alternative Fuels Data Center: Propane Related Links on AddThis.com... More in this section... Propane Basics Production & Distribution Related Links Benefits & Considerations Stations Vehicles Laws & Incentives Propane Related Links This list includes links related to propane. The Alternative Fuels Data

432

Variation of Solar Attenuation with Height in CAPLTER The atmosphere over rural and urbanized areas differs in many ways in relation to terrain influences and human-induced variations (e.g., heat, humidity, wind, and pollution). The sun's energy penetrate  

E-Print Network (OSTI)

on amounts of solar energy that are accumulated at any given time. These controls range from extraterrestrial of variability cascade into plant productivity, solar energy technology, and urban climate processes, in generalVariation of Solar Attenuation with Height in CAPLTER Abstract The atmosphere over rural

Hall, Sharon J.

433

Alternative Fuels Data Center: Related Links  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Related Links to Related Links to someone by E-mail Share Alternative Fuels Data Center: Related Links on Facebook Tweet about Alternative Fuels Data Center: Related Links on Twitter Bookmark Alternative Fuels Data Center: Related Links on Google Bookmark Alternative Fuels Data Center: Related Links on Delicious Rank Alternative Fuels Data Center: Related Links on Digg Find More places to share Alternative Fuels Data Center: Related Links on AddThis.com... Related Links For a list of additional resources about alternative fuels and advanced vehicles, select one or more categories below. All organizations are provided as suggested resources. The Alternative Fuels Data Center does not endorse these companies or the products and services listed on their websites (see disclaimer).

434

Solid-State Lighting: Related Opportunities  

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

Financial Financial Opportunities Printable Version Share this resource Send a link to Solid-State Lighting: Related Opportunities to someone by E-mail Share Solid-State Lighting: Related Opportunities on Facebook Tweet about Solid-State Lighting: Related Opportunities on Twitter Bookmark Solid-State Lighting: Related Opportunities on Google Bookmark Solid-State Lighting: Related Opportunities on Delicious Rank Solid-State Lighting: Related Opportunities on Digg Find More places to share Solid-State Lighting: Related Opportunities on AddThis.com... Current Opportunities DOE Selections Related Opportunities Related Opportunities The U.S. Department of Energy (DOE) has created this resource to help researchers, manufacturers, and distributors of solid-state lighting products locate funding opportunities to help them advance and deploy

435

Research Highlight  

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

Study Aerosol Humidity Effects Using the ARM Measurements Study Aerosol Humidity Effects Using the ARM Measurements Submitter: Li, Z., University of Maryland Area of Research: Radiation Processes Working Group(s): Aerosol Journal Reference: Jeong, M.-J., Z. Li, E. Andrews, and S.-C. Tsay (2007). Effect of aerosol humidification on the column aerosol optical thickness over the Atmospheric Radiation Measurement Southern Great Plains site, J. Geophys. Res., 112, D10202, doi:10.1029/2006JD007176. (a)-(j) Column-mean aerosol humidification factor as functions of the weighted column mean RH, . The ambient RH at one of the ten level-legs of the In-situ Aerosol Profile (IAP) measurements is replaced with RH equals 99%. Comparison of estimated column R(RH) following six different methods (M1~M6). Gray solid lines and black dashed lines are linear fit and

436

RPP Environmental Permits and Related Documentation  

SciTech Connect

This document contains the current list of environmental permits and related documentation for TWRS facilities and activities.

DEXTER, M.L.

2000-11-29T23:59:59.000Z

437

Query optimization in nested relational databases  

E-Print Network (OSTI)

optimization in nested relational systems and does not make any assumptions on the physical implementation of the system. C. Contributions of this research This research could be divided into three phases: 1. Study of query languages and algebras... does so by treating both relation-valued attributes and relations uniformly. Let name be the set of valid names to be used for naming relations and their attributes. 1. Descriptions: A description 6 is an ordered pair (n, s), where n C name...

Rathakrishnan, Balaji

2012-06-07T23:59:59.000Z

438

Current Issues in Communication of Science II: The Scientific Meeting and Related Publications  

Science Journals Connector (OSTI)

...and FRIGID ROOMS WIDE HUMIDITY RANGES MODULAR "PANELIZED" FIBERGLASS ROOMS PLANT GROWTH ROOMS COLD CABINETS EXPLOSION-PROOF REFRIGERATORS REACH-IN CO2 CHAMBERS NEW SOLID STATE...temperature range. O900 Series Rooms. New, modular, sandwich-type panels of 2-inch...

Richard Kenyon

1966-02-18T23:59:59.000Z

439

Wavelet based artificial neural network applied for energy efficiency enhancement of decoupled HVAC system  

Science Journals Connector (OSTI)

Control methodologies could lower energy demand and consumption of heating, ventilating and air conditioning (HVAC) systems and, simultaneously, achieve better comfort conditions. However, the application of classical controllers is unsatisfactory as HVAC systems are non-linear and the control variables such as temperature and relative humidity (RH) inside the thermal zone are coupled. The objective of this study is to develop and simulate a wavelet-based artificial neural network (WNN) for self tuning of a proportional-derivative (PD) controller for a decoupled bi-linear HVAC system with variable air volume and variable water flow responsible for controlling temperature and RH of a thermal zone, where thermal comfort and energy consumption of the system are evaluated. To achieve the objective, a WNN is used in series with an infinite impulse response (IIR) filter for faster and more accurate identification of system dynamics, as needed for on-line use and off-line batch mode training. The WNN-IIR algorithm is used for self-tuning of two PD controllers for temperature and RH. The simulation results show that the WNN-IIR controller performance is superior, as compared with classical PD controller. The enhancement in efficiency of the HVAC system is accomplished due to substantially lower consumption of energy during the transient operation, when the gain coefficients of PD controllers are tuned in an adaptive manner, as the steady state setpoints for temperature and RH are better reached in a shorter period of time. The multi-zone analyses are suggested for future work.

G. Jahedi; M.M. Ardehali

2012-01-01T23:59:59.000Z

440

Employee and Labor Relations | Department of Energy  

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

Employee and Labor Relations Employee and Labor Relations Employee and Labor Relations The Headquarters Employee/Labor Relations Division provides labor/employee management relations advisory services to Headquarters staff, including union negotiations, adverse actions, grievances, and performance management. The Division staff represents management in third-party situations or union negotiations. Provides work life information, referral and support services to Headquarters employees covering such areas as child care, elder care, employee assistance programs, health and wellness, career transition and programs for the accessibility of Departmental services for people with disabilities. Click the "Contacts" Link to find a list of HR Specialist by the organization's they service.

Note: This page contains sample records for the topic "relative humidity rh" 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

Lazarus-SM  

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

Cloud Fraction Parameterization Cloud Fraction Parameterization Using Observations and Model Data S. M. Lazarus and S. K. Krueger University of Utah, Department of Meteorology Salt Lake City, Utah A. S. Frisch National Oceanic and Atmospheric Administration Environmental Technology Laboratory Boulder, Colorado Introduction We examine an empirical cloud fraction parameterization developed by Xu and Randall (XR 1996). The XR parameterization relates the large-scale relative humidity RH and the large-scale cloud water mixing ratios 1 q to the large-scale cloud fraction σ . By large scale, we refer to space and time scales resolved by a global climate model. We approach the evaluation from two perspectives, the first of which incorporates observations from the Global Atmospheric Research Program's Atlantic

442

Energy-Related Carbon Emissions in Manufacturing  

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

Energy Energy-Related Carbon Emissions Energy Energy-Related Carbon Emissions Detailed Energy-Related Carbon Emissions All Industry Groups 1994 emissions Selected Industries Petroleum refining Chemicals Iron & Steel Paper Food Stone, clay and glass Methodological Details Estimation methods Glossary Return to: Energy and GHG Analysis Efficiency Page Energy Use in Manufacturing Energy-Related Carbon Emissions in Manufacturing Manufacturing, which accounts for about 80 percent of industrial energy consumption, also accounts for about 80 percent of industrial energy-related carbon emissions. (Agriculture, mining, forestry, and fisheries account for the remaining 20 percent.) In 1994, three industries, petroleum, chemicals, and primary metals, emitted almost 60 percent of the energy-related carbon in manufacturing. The next three largest emitters (paper, food, and the stone, glass, and clay products industry) produced an additional 22 percent of the energy-related manufacturing emissions (Figure 1).

443

Corporate/Foundation Relations CORPORATE AND FOUNDATION RELATIONS The Offices of Corporate and  

E-Print Network (OSTI)

Corporate/Foundation Relations - 1 - CORPORATE AND FOUNDATION RELATIONS The Offices of Corporate and Foundation Relations (CR, FR) are responsible for coordinating with OSP on applications to key University development and institutional advancement prospects. Applying to Foundations or Corporations. Faculty

Mather, Patrick T.

444

Analysis of critical climate related factors for the application of zero-energy homes in Saudi Arabia  

Science Journals Connector (OSTI)

Abstract The Saudi construction industry is led by housing sector that imposes enormous energy and environmental challenges for the country. The housing sector is growing rapidly and is responsible for 52% of the total national electricity consumption. In order to promote sustainable development it is vital for Saudi Arabia to adopt sustainable housing practices such as zero-energy homes (ZEHs). The concept is new to Saudi Arabia though a number of \\{ZEHs\\} have already been developed around the world. One of the most significant challenges facing the application of \\{ZEHs\\} in Saudi Arabia is uncertainty about their adaptability in local climate. The present work aims to investigate this uncertainty, mainly focusing on the four climatic factors related to the application of \\{ZEHs\\} including air temperature, relative humidity, wind speed and global solar radiation. This is fulfilled by reviewing climatic condition of Saudi Arabia and the concept of \\{ZEHs\\} and examining some of these homes built across the globe in climates similar to the Saudi climatic zones. In this respect, five \\{ZEHs\\} globally developed in climates matching with the five main Saudi climatic zones have been investigated as case studies. A typical-virtual home has been designed on the basis of a questionnaire survey. With the help of the Integrated Environmental Solution ?Virtual Environment? software a modelling exercise has been carried out to compare its energy performance at the five selected international locations with their corresponding Saudi locations. This comparison is based upon the maximum and mean power demand. Furthermore, to cater for the differences in climatic conditions between the Saudi locations and their counterpart global locations, a sensitivity analysis for the studied locations has been undertaken for the four climate factors.

Farajallah Alrashed; Muhammad Asif

2015-01-01T23:59:59.000Z

445

The four particles paradox in special relativity  

E-Print Network (OSTI)

We present a novel paradox in special relativity together with its solution. We call it the four particles paradox. The purpose of this paradox is pedagogical and therefore directed towards students and lecturers of physics. Even if most paradoxes in special relativity theory are very interrelated and some are special cases of others, the paradox we present here is original and illuminates on the very nice subject and the literature of special relativity.

J. Manuel Garcia-Islas

2014-12-02T23:59:59.000Z

446

Relational Sequence Clustering for Aggregating Similar Agents  

E-Print Network (OSTI)

Relational Sequence Clustering for Aggregating Similar Agents Grazia Bombini, Nicola Di Mauro;2 Grazia Bombini, Nicola Di Mauro, Stefano Ferilli, and Floriana Esposito image segmentation and pattern

Di Mauro, Nicola

447

DOE Analysis Related to H2USA  

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

Presentation slides from the DOE Fuel Cell Technologies Office webinar, DOE Analysis Related to H2USA, held on July 24, 2013.

448

Doubly Special Relativity and quantum gravity phenomenology  

E-Print Network (OSTI)

I review the conceptual, algebraical, and geometrical structure of Doubly Special Relativity. I also speculate about the possible relevance of DSR for quantum gravity phenomenology.

J. Kowalski-Glikman

2003-12-12T23:59:59.000Z

449

Radiation Exposure Monitoring Systems - Other Related Sites ...  

Office of Environmental Management (EM)

Other Related Sites DOE - Main Home Page - the home page for all DOE information and web sites. DOE EHSS Information Portal - source for EHSS information across the complex....

450

Microsoft Word - MPUR_Feb2011_final_rh.docx  

Gasoline and Diesel Fuel Update (EIA)

11 11 1 February 2011 Short-Term Energy Outlook Market Prices and Uncertainty Report 1 February 8, 2011 Release Crude Oil Prices. WTI crude oil spot prices averaged $89 per barrel in January, about the same as the December average, while over the same time period the estimated average cost of all crude oil to U.S. refineries increased by about $1 per barrel. Growing volumes of Canadian crude oil imported into the United States contributed to record-high storage levels at Cushing, Oklahoma, and a price discount for WTI compared with similar quality world crudes such as Brent crude oil. Projected WTI spot prices rise to an average of $95 per barrel in December 2011 and continue to increase to $99 per barrel by the

451

On recent claims concerning the Rh = ct Universe  

Science Journals Connector (OSTI)

......density rho. One-on-one comparative tests between R h-=-ct and lambdaCDM have...corollary (see also Weinberg 1972). To test whether in fact the EOS p-=-rho/3...carried out an extensive suite of comparative tests using lambdaCDM and R h-=-ct, together......

Fulvio Melia

2015-01-01T23:59:59.000Z

452

Step enhanced dehydrogenation of ethanol on Rh Andrea Resta a  

E-Print Network (OSTI)

for the future, to be used in fuel cells where the hydrogen is oxi- dized into H2O and electricity is produced which the hydrogen is extracted in close proximity to its use in e.g. fuel cells. One such H o Article history: Received 18 June 2008 Accepted for publication 5 August 2008 Available online 14

Li, Weixue

453

CSP for binary conservative relational structures  

E-Print Network (OSTI)

We prove that whenever A is a 3-conservative relational structure with only binary and unary relations then the algebra of polymorphisms of A either has no Taylor operation (i.e. CSP(A) is NP-complete), or generates a congruence meet semidistributive variety (i.e. CSP(A) has bounded width).

Kazda, Alexandr

2011-01-01T23:59:59.000Z

454

Approximate Relational Reasoning by Stochastic Propositionalization  

E-Print Network (OSTI)

Approximate Relational Reasoning by Stochastic Propositionalization Nicola Di Mauro, Teresa M fold recognition Nicola Di Mauro · Teresa M.A. Basile · Stefano Ferilli · Floriana Esposito Department.com c Springer-Verlag Berlin Heidelberg 2010 #12;82 N. Di Mauro et al. and drug design are relational

Di Mauro, Nicola

455

Concept Relations in a Multilingual Thesaurus  

Science Journals Connector (OSTI)

...ARTICLE Concept Relations in a Multilingual Thesaurus Joel J. Lloyd 1 1 American Geological...geology lexicons multilingual objectives Thesaurus GeoRef, Copyright 2004, American Geological...1974 Concept Relations in a Multilingual Thesaurus Lloyd Joel J. Author 152 GLGYBA Geology...

456

INTRODUCTION The Electrical Charge and Relativity  

E-Print Network (OSTI)

INTRODUCTION The Electrical Charge and Relativity This course starts with the introduction of concepts related to just electricity: charge, electric field, electric potential energy, conservation of electric energy, etc. Notice that latter terms sound already very familiar to what you have learned in PH

457

The relative impact 1 Organizational socialization tactics  

E-Print Network (OSTI)

, although not all learning is considered as organizational socialization (e.g., Haueter, Macan, & Winter learning in three key organizational domains of how things work with the organization, the work groupThe relative impact 1 Organizational socialization tactics: Determining the relative impact

Boyer, Edmond

458

THE STRESS-STRAIN RELATIONS OF RUBBER  

Science Journals Connector (OSTI)

THE STRESS-STRAIN RELATIONS OF RUBBER 10.1126/science.8.202.673-a C. M. BROOMALL M EDIA , P A. THE STRESS-STRAIN RELATIONS OF RUBBER. | Journal Article SCIENCE. Prominent as the object is thus likely to become...

C. M. BROOMALL

1898-11-11T23:59:59.000Z

459

A NOTE ON THE RELATIVE INDEX THEOREM  

Science Journals Connector (OSTI)

......defined the relative analytic index to be the difference of the ordinary Fredholm indices, Ind Do -- Ind Dx. 370...where the top row is the completion of the exact sequence 1...a-b. The relative analytic index is r(Ind F), where F......

JOHN ROE

1991-01-01T23:59:59.000Z

460

Employee Concerns Related Documents | Department of Energy  

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

Employee Concerns Related Documents Employee Concerns Related Documents Employee Concerns Related Documents The documents on this page are related to the Department of Energy's Reporting Employee Concerns Program, which you can find information about here. The DOE Order on Employee Concerns 442.1A establishes a Department of Energy (DOE) Employee Concerns Program (ECP) that ensures employee concerns related to such issues as the environment, safety, health, and management of DOE and the National Nuclear Security Administration (NNSA) programs and facilities are addressed through- a. prompt identification, reporting, and resolution of employee concerns regarding DOE facilities or operations in a manner that provides the highest degree of safe operations; b. free and open expression of employee

Note: This page contains sample records for the topic "relative humidity rh" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

The General Theory of Relativity - A  

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

Einstein's special theory of relativity addressed the problem of the invariant speed of light in vacuum by showing the interrelationship of space and time. The general theory of relativity showed how the shape of spacetime could explain the mechanism of gravity. A B C D E F A. Special Theory, General Theory Albert Einstein's most noted accomplishment is his theory of relativity. This theory was developed in two major stages. The first stage is known as the special theory of relativity. Its essential idea is that neither space nor time are absolute things, but relative things that depend on one's frame of reference, while the combination of space and time is a single, nonrelative entity, which remains the same regardless of one's frame of reference.

462

Central Internet Database (CID) Related Links  

Office of Environmental Management (EM)

Related Links Related Links Central Internet Database CID Photo Banner Links to Waste and Materials Disposition Information Below is a collection of reports and links to various documents that provide information related to waste and material disposition. While most of these are directly related to the Department of Energy's waste management activities, some links include information from the commercial sector. Some of the information provides an historical context for current waste disposition alternatives. To view PDF documents, please ensure Adobe Reader is installed on your computer, it is available to download here Exit CID Website . Waste Volume Related Databases For DOE/EM waste and material stream data: Waste Information Management System (WIMS) provided by Florida International University Exit CID Website

463

Related Sites | Y-12 National Security Complex  

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

Related Sites Related Sites Related Sites Links to the following sources of information are provided as resources. Listings are obtained from government, industry and trade organizations and from other resources. B&W Corporate B&W Corporate The Babcock & Wilcox Company is a leading international provider of energy products and services. B&W Lawrence Livermore Lawrence Livermore National Laboratory helps reduce and counter threats to national and global security through the advancement and application of science and technology. B&W Pantex Located in Amarillo, Texas, the Pantex Plant supports stockpile stewardship, nonproliferation, and safeguards and security. Government System for Award Management The System for Award Management (SAM) (formerly Central Contractor

464

Related Links | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

The National Nuclear Security Administration The National Nuclear Security Administration Related Links Home > About Us > Our Programs > Defense Programs > Future Science & Technology Programs > Office of Advanced Simulation and Computing and Institutional R&D Programs > Related Links Related Links NNSA Lab Directed Research and Development (LDRD) Lab Directed Research and Development Collaborations DOE Adanced Scientific Computing Research DTRA (Defense Threat Reduction Agency) NAS (National Academy of Sciences) NSF (National Science Foundation) DOD (Department of Defense) NASA Exascale Activities NNSA Exascale Environment Planning Workshop ASCR Co-Design Centers Supercomputing Top 500 List ASC at Supercomputing Conference Printer-friendly version Printer-friendly version Facebook

465

Analysis of Selected Radiosonde Data from the ARM/NSA Site  

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

Analysis of Selected Radiosonde Data Analysis of Selected Radiosonde Data from the ARM/NSA Site B. Petracca, H. W. Church, and B. D. Zak Sandia National Laboratories Albuquerque, New Mexico R. Storvold and C. Marty Geophysical Institute University of Alaska Fairbanks, Alaska B. M. Lesht Argonne National Laboratories Argonne, Illinois Introduction The purpose of this study was to analyze differences in temperature and relative humidity (RH) profiles obtained from near-simultaneous radiosonde soundings made from different locations at and near the North Slope of Alaska (NSA) Cloud and Radiation Testbed (CART) site. The data for this study come from the Vaisala RS-80H radiosondes flown by Atmospheric Radiation Measurement (ARM) Program during the comparison periods, and from VIZ B2 radiosondes flown by the National Weather Service

466

ARM - Datastreams - aosmet  

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

Datastreamsaosmet Datastreamsaosmet Documentation Data Quality Plots Citation DOI: 10.5439/1025153 [ What is this? ] Generate Citation 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 Datastream : AOSMET AOS: aerosol-based meteorology data Active Dates 2010.10.03 - 2013.10.02 Measurement Categories Atmospheric State Originating Instrument Meteorological Measurements associated with the Aerosol Observing System (AOSMET) Measurements Only measurements considered scientifically relevant are shown below by default. Show all measurements Measurement Units Variable Atmospheric pressure Ambient pressure hPa P_Ambient ( time ) Atmospheric moisture Ambient air relative humidity % RH_Ambient ( time ) Atmospheric temperature

467

Field Derived Emission Factors For Formaldehyde and other Volatile Organic  

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

Field Derived Emission Factors For Formaldehyde and other Volatile Organic Field Derived Emission Factors For Formaldehyde and other Volatile Organic Compounds in FEMA Temporary Housing Units Title Field Derived Emission Factors For Formaldehyde and other Volatile Organic Compounds in FEMA Temporary Housing Units Publication Type Report LBNL Report Number LBNL-4083E Year of Publication 2010 Authors Parthasarathy, Srinandini, Randy L. Maddalena, Marion L. Russell, and Michael G. Apte Publisher Lawrence Berkeley National Laboratory City Berkeley Abstract Sixteen previously occupied temporary housing units (THUs) were studied to assess emissions of volatile organic compounds. The whole trailer emission factors were evaluated for 36 VOCs including formaldehyde. Indoor sampling was carried out in the THUs located in Purvis staging yard in Mississippi, USA. Indoor temperature and relative humidity (RH) were also measured in all the trailers during sampling. Indoor temperatures were varied (increased or decreased) in a selection of THUs using the

468

Radiosonde observations at Pt. Reyes and cloud properties retrieved from  

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

Radiosonde observations at Pt. Reyes and cloud properties retrieved from Radiosonde observations at Pt. Reyes and cloud properties retrieved from GOES-WEST Inoue, Toshiro MRI/JMA Category: Field Campaigns Low-level cloud formed off the west coast of continents plays an important role in general circulation and climate. Marine Stratus Radiation Aerosol and Drizzle (MASRAD) was conducted at the ARM mobile site deployed at Pt Reyes, California during April to September. Here, we studied the relationship between meteorological parameters observed by GPS sonde and cloud properties observed from GOES-WEST during the MASRAD intensive operational period. Cloud properties are retrieved from VISST (Visible Infrared Solar-infrared Split window Technique). The vertical profile of stability, relative humidity (RH) and wind speed observed by GPS sonde are

469

Ultraviolet Germicidal Irradiation for Preventing Infectious Disease  

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

Ultraviolet Germicidal Irradiation for Preventing Infectious Disease Ultraviolet Germicidal Irradiation for Preventing Infectious Disease Transmission Speaker(s): Peng Xu Date: February 19, 2002 - 12:00pm Location: Bldg. 90 The transmission of tuberculosis (TB) and other infectious diseases in health-care buildings has been a recognized hazard for decades. Ultraviolet germicidal irradiation (UVGI) of upper room air is used as an engineering control method to prevent the spread of airborne infectious disease. Under full-scale conditions, the efficacy of UVGI for inactivating airborne bacterial spores and active cells was evaluated. A test room fitted with a modern UVGI system was used to conduct bio-aerosol inactivation experiments. UVGI efficacy can be affected by environmental factors such as relative humidity (RH), and air mixing

470

Section 60  

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

7 7 Generation and Maintenance of Cirrus Clouds by Numerically Modeled Thunderstorms H. E. Brooks National Oceanic and Atmospheric Administration Environmental Research Laboratories National Severe Storms Laboratory Norman, Oklahoma Introduction Thunderstorms represent an important component in the moisture budget of the large-scale atmosphere in the Southern Great Plains, especially in the warm season. In particular, they are a major source of precipitation at the ground and of cloud material in the stratosphere. The former aspect is of significance for the surface energy budget, while the latter impacts the radiation budget. As such, the moisture budget of individual thunderstorms is of interest. Brooks and Stensrud (1996) reported on the effects of shear and relative humidity (RH) in the troposphere on the

471

Section 13  

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

F' F' j i f i n i k i *r i j i n i k i *r i P 8 (1) n i f i k i r i f i n i µ 0 ' cos (SZA) Session Papers 47 (1) Figure 1. Dependence of direct forcing, )F on µ = 0 cos(SZA) for a relative humidity, RH = 80% and optical thickness, J = 0.1 calculated by the summing method (dashed line) and the direct method (solid line) using the marine aerosol size distribution (Hoppel et al. 1990). Aerosol Sulfate Loading and Shortwave Direct Radiative Forcing over the North Atlantic Ocean S. Nemesure, C. M. Benkovitz and S. E. Schwartz Environmental Chemistry Division Brookhaven National Laboratory Upton, New York Introduction Shortwave radiative forcing of climate by anthropogenic sulfate aerosols is estimated to be equal in magnitude but opposite in sign to that of greenhouse warming, with a global annual average value of approximately -1 W m uncertain to

472

ARM - Instrument - smos  

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

govInstrumentssmos govInstrumentssmos Documentation SMOS : Handbook SMOS : Instrument Mentor Monthly Summary (IMMS) reports SMOS : Data Quality Assessment (DQA) reports 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 Instrument : Surface Meteorological Observation System Instruments for SGP (SMOS) Instrument Categories Surface Meteorology Picture of the Surface Meteorological Observation System (SMOS) Picture of the Surface Meteorological Observation System (SMOS) General Overview The Surface Meteorological Observation System (SMOS) mostly uses conventional in situ sensors to obtain 1-minute, 30-minute, and 1440-minute (daily) averages of surface wind speed, wind direction, air temperature, relative humidity (RH), barometric pressure, and precipitation at the

473

Surface Meteorological Observation System (SMOS) Handbook  

SciTech Connect

The Surface Meteorological Observation System (SMOS) mostly uses conventional in situ sensors to obtain 1-minute, 30-minute, and 1440-minute (daily) averages of surface wind speed, wind direction, air temperature, relative humidity (RH), barometric pressure, and precipitation at the Central Facility and many of the extended facilities of the Southern Great Plains (SGP) climate research site. The SMOSs are not calibrated as systems. The sensors and the data logger (which includes the analog-to-digital converter, or A/D) are calibrated separately. All systems are installed using components that have a current calibration. SMOSs have not been installed at extended facilities located within about 10 km of existing surface meteorological stations, such as those of the Oklahoma Mesonet. The Surface Meteorological Observation Systems are used to create climatology for each particular location, and to verify the output of numerical weather forecast and other model output. They are also used to “ground-truth” other remote sensing equipment.

Ritsche, MT

2008-03-01T23:59:59.000Z

474

Heterogeneous nucleation of ice on anthropogenic organic particles collected in Mexico City  

SciTech Connect

This study reports on heterogeneous ice nucleation activity of predominantly organic (or coated with organic material) anthropogenic particles sampled within and around the polluted environment of Mexico City. The onset of heterogeneous ice nucleation was observed as a function of particle temperature (Tp), relative humidity (RH), nucleation mode, and particle chemical composition which is influenced by photochemical atmospheric aging. Particle analyses included computer controlled scanning electron microscopy with energy dispersive analysis of X-rays (CCSEM/EDX) and scanning transmission X-ray microscopy with near edge X-ray absorption fine structure spectroscopy (STXM/NEXAFS). In contrast to most laboratory studies employing proxies of organic aerosol, we show that anthropogenic organic particles collected in Mexico City can potentially induce ice nucleation at experimental conditions relevant to cirrus formation. The results suggest a new precedent for the potential impact of organic particles on ice cloud formation and climate.

Knopf, D.A.; Wang, B.; Laskin, A.; Moffet, R.C.; Gilles, M.K.

2010-06-20T23:59:59.000Z

475

PARAMETERIZATIONS FOR THE KELVIN (SURFACE TENSION) EFFECT ON THE  

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

PARAMETERIZATIONS FOR THE KELVIN (SURFACE TENSION) EFFECT ON THE PARAMETERIZATIONS FOR THE KELVIN (SURFACE TENSION) EFFECT ON THE EQUILIBRIUM RADIUS AND ASSOCIATED OPTICAL PROPERTIES OF A HYGROSCOPIC AEROSOL PARTICLE Lewis, Ernie Brookhaven National Laboratory Schwartz, Stephen Brookhaven National Laboratory Category: Aerosols The equilibrium size of an atmospheric aerosol particle is a key property, affecting its light-scattering coefficient and asymmetry parameter, and hence its radiative influence. For a hygroscopic particle of given composition this size is determined by the particle dry mass (which can alternatively be expressed as the volume-equivalent dry radius rdry) and the fractional relative humidity h (ºRH/100). Surface tension also affects this equilibrium size (Kelvin effect) and thus the associated properties.

476

New and Underutilized Technology: Carbon Dioxide Demand Ventilation Control  

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

Carbon Dioxide Demand Ventilation Carbon Dioxide Demand Ventilation Control New and Underutilized Technology: Carbon Dioxide Demand Ventilation Control October 4, 2013 - 4:23pm Addthis The following information outlines key deployment considerations for carbon dioxide (CO2) demand ventilation control within the Federal sector. Benefits Demand ventilation control systems modulate ventilation levels based on current building occupancy, saving energy while still maintaining proper indoor air quality (IAQ). CO2 sensors are commonly used, but a multiple-parameter approach using total volatile organic compounds (TVOC), particulate matter (PM), formaldehyde, and relative humidity (RH) levels can also be used. CO2 sensors control the outside air damper to reduce the amount of outside air that needs to be conditioned and supplied to the building when

477

Field Derived Emission Factors For Formaldehyde and other Volatile Organic Compounds in FEMA Temporary Housing Units  

SciTech Connect

Sixteen previously occupied temporary housing units (THUs) were studied to assess emissions of volatile organic compounds. The whole trailer emission factors wereevaluated for 36 VOCs including formaldehyde. Indoor sampling was carried out in the THUs located in Purvis staging yard in Mississippi, USA. Indoor temperature andrelative humidity (RH) were also measured in all the trailers during sampling. Indoor temperatures were varied (increased or decreased) in a selection of THUs using theheating, ventilation and air conditioning (HVAC) systems. Indoor temperatures during sampling ranged from 14o C to 33o C, and relative humidity (RH) varied between 35percentand 74percent. Ventilation rates were increased in some trailers using bathroom fans and vents during some of the sampling events. Ventilation rates measured during some aselection of sampling events varied from 0.14 to 4.3 h-1. Steady state indoor formaldehyde concentrations ranged from 10 mu g-m-3 to 1000 mu g-m-3. The formaldehyde concentrations in the trailers were of toxicological significance. The effects of temperature, humidity and ventilation rates were also studied. A linearregression model was built using log of percentage relative humidity, inverse of temperature (in K-1), and inverse log ACH as continuous independent variables, trailermanufacturer as a categorical independent variable, and log of the chemical emission factors as the dependent variable. The coefficients of inverse temperature, log relativehumidity, log inverse ACH with log emission factor were found to be statistically significant for all the samples at the 95percent confidence level. The regression model wasfound to explain about 84percent of the variation in the dependent variable. Most VOC concentrations measured indoors in the Purvis THUs were mostly found to be belowvalues reported in earlier studies by Maddalena et al.,1,2 Hodgson et al.,3 and Hippelein4. Emissions of TMPB-DIB (a plasticizer found in vinyl products) were found to be higher than values reported in comparable housing by Hodgson et al.,3. Emissions of phenol were also found to be slightly higher than values reported in earlier studies1,2,3. This study can assist in retrospective formaldehyde exposure assessments of THUs where estimates of the occupants indoor formaldehyde exposures are needed.

Parthasarathy, Srinandini; Maddalena, Randy L.; Russell, Marion L.; Apte, Michael G.

2010-10-01T23:59:59.000Z

478

Glossary: Energy-Related Carbon Emissions  

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

Glossary: Energy-Related Carbon Emissions Glossary: Energy-Related Carbon Emissions Glossary: Energy-Related Carbon Emissions For additional terms, refer to: the Glossary of Emissions of Greenhouse Gases in the United States 1998 for additional greenhouse gas related terms, the Glossary of Manufacturing Consumption of Energy 1994 for additional manufacturing terms, and Appendix F of Manufacturing Consumption of Energy 1994 for descriptions of the major industry groups. British Thermal Unit: The amount of heat required to raise the temperature of 1 pound of water by 1 degree Fahrenheit. One quadrillion Btu is 1015 Btu, or 1.055 exajoules. Btu: See British Thermal Unit. Carbon Dioxide: A colorless, odorless, non-poisonous gas that is a normal part of Earth's atmosphere. Carbon dioxide is a product of fossil-fuel combustion as well as other processes. It is considered a greenhouse gas as it traps heat radiated into the atmosphere and thereby contributes to the potential for global warming.

479

Related Links | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Los Alamos Field Office > Related Los Alamos Field Office > Related Links Related Links NNSA and Other Related Links DOE/NNSA Phonebook Freedom of Information Act Department of Energy DOE Directives DOE Jobs Online Defense Nuclear Facilities Safety Board DOE Pulse Publication DOE Office of Health, Safety and Security USA.Gov Los Alamos County Los Alamos National Laboratory LANL Phonebook National Nuclear Security Administration NNSA Service Center - Albuquerque NNSA Nevada Field Office New Mexico Environmental Department - LANL Sandia National Laboratories Waste Isolation Pilot Plant U.S. Department of Homeland Security Code of Federal Regulations Printer-friendly version Printer-friendly version Facebook Twitter Youtube Flickr General Information About Los Alamos Field Office Contact Us Employee Concerns Program

480

How BEDES Relates | Department of Energy  

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

Commercial Buildings » Building Energy Data Exchange Specification Commercial Buildings » Building Energy Data Exchange Specification » How BEDES Relates How BEDES Relates Below is some detail regarding how BEDES relates to various tools and specifications with similar use cases. More detailed information on these efforts and others can be found in the scoping report. How BEDES Relates to Federal Tools There was widespread recognition by stakeholders of the value already provided by federal analytical tools, such as Portfolio Manager, the asset scoring tools, and Buildings Performance Database (BPD). Stakeholders also anticipate the value that Standard Energy Efficiency Database platform (SEED) will provide when it is complete. Aligning the data formats for all these tools and activities would reduce the data management burden for

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


481

Council on Foreign Relations | Department of Energy  

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

Council on Foreign Relations Council on Foreign Relations Council on Foreign Relations January 13, 2005 - 9:47am Addthis Remarks Prepared for Energy Secretary Abraham Thank you. It's an honor to be here with you today. For over 80 years the Council has played a leading role in guiding American foreign policy. As Leslie Gelb once said, "If the Council as a body has stood for anything ... it has been for American internationalism based on American interests." This body has not just stood for American internationalism and American interests, it has helped guarantee them. Scholars and historians have dubbed the last 100 years "the American Century," and there can be little doubt the Council on Foreign Relations helped make it so. As my tenure in the Bush Administration comes to a close, I wanted to

482

Relative Retention Data for an Ethofat Column  

Science Journals Connector (OSTI)

......Retention Data for an Ethofat Column David P. Mowry Marathon Oil Company, Littleton, Colorado 80121 ture. RECIPROCAL...Retention Data for an Ethofat Column by David P. Mowry, Marathon 011 Company, Littleton, Colorado 80121 Relative retention......

David P. Mowry

1966-11-01T23:59:59.000Z

483

Integrating XML and Relational Database Systems  

Science Journals Connector (OSTI)

Relational databases get more and more employed in order to store the content of a web site. At the same time, XML is fast emerging as the dominant standard at the hypertext level of web site management descri...

Gerti Kappel; Elisabeth Kapsammer; Werner Retschitzegger

2004-12-01T23:59:59.000Z

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